Liquid-crystalline medium and liquid-crystal display comprising the same and compounds

Abstract

A liquid-crystalline medium, preferably having a nematic phase, comprising one or more compounds of formula C ##STR00001##
the use thereof in an energy-efficient electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, displays of this type which contain a liquid-crystalline medium of this type, and the use of the compounds of formula C for improvement of the contrast and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds.

Claims

1. A liquid-crystalline medium, comprising one or more compounds of formula C: ##STR00482## in which ##STR00483## denotes ##STR00484## ##STR00485## denotes, in each occurrence independently of one another, ##STR00486## R.sup.C1 and R.sup.C2 independently of one another, denote an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen; and wherein the respective rings are each optionally substituted by one or two alkyl groups; one or more compounds of formula B: ##STR00487## in which ##STR00488## denotes ##STR00489## ##STR00490## denotes, in each occurrence independently of one another, ##STR00491## n denotes 1 or 2; denotes an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen; and X.sup.1 denotes F, Cl, or a fluorinated alkyl, alkenyl, alkoxy, or alkenyloxy group having 1 to 4 C atoms; and one or more dielectrically neutral compounds of formula V: ##STR00492## in which R.sup.51 and R.sup.52 independently of one another, denote an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen; ##STR00493## if present, each, independently of one another, denote ##STR00494## Z.sup.51 to Z.sup.53 each, independently of one another, denote CH.sub.2CH.sub.2, CH.sub.2O, CHCH, CC, COO, or a single bond; and i and i each, independently of one another, denote 0 or 1, wherein the respective rings are each optionally substituted by one or two alkyl groups; and wherein the liquid-crystalline medium has a positive dielectric anisotropy.

2. The medium according to claim 1, further comprising one or more compounds selected from the group consisting of compounds of formulae II and III: ##STR00495## in which R.sup.2 and R.sup.3 independently of one another, denote an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen; ##STR00496## on each appearance, independently of one another, denote ##STR00497## L.sup.21 and L.sup.22 denote H or F; X.sup.2 denotes halogen, halogenated alkyl or alkoxy having 1 to 3 C atoms, or halogenated alkenyl or alkenyloxy having 2 or 3 C atoms; m denotes 0, 1, 2, or 3; ##STR00498## on each appearance, independently of one another, denote ##STR00499## L.sup.31 and L.sup.32 independently of one another, denote H or F; X.sup.3 denotes halogen, halogenated alkyl or alkoxy having 1 to 3 C atoms, or halogenated alkenyl or alkenyloxy having 2 or 3 C atoms, F, Cl, OCF.sub.3, OCHF.sub.2, OCH.sub.2CF.sub.3, OCHCF.sub.2, OCHCH.sub.2, or CF.sub.3; Z.sup.3 denotes CH.sub.2CH.sub.2, CF.sub.2CF.sub.2, COO, trans-CHCH, trans CFCF, CH.sub.2O, or a single bond; and n denotes 0, 1, 2, or 3, wherein the respective rings are each optionally substituted by one or two alkyl groups.

3. The medium according to claim 1, further comprising one or more dielectrically neutral compounds of formula IV: ##STR00500## in which R.sup.41 and R.sup.42 independently of one another, denote an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen; ##STR00501## independently of one another and, if ##STR00502## occurs twice, also these independently of one another, denote ##STR00503## Z.sup.41 and Z.sup.42 independently of one another and, if Z.sup.41 occurs twice, also these independently of one another, denote CH.sub.2CH.sub.2, COO, trans-CHCH, trans-CFCF, CH.sub.2O, CF.sub.2O, CC, or a single bond; p denotes 0, 1, or 2; R.sup.51 and R.sup.52 independently of one another, denote an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen; wherein the respective rings are each optionally substituted by one or two alkyl groups.

4. The medium according to claim 1, in which in the one or more compounds of formula B: ##STR00504## denotes ##STR00505##

5. The medium according to claim 1, further comprising one or more compounds of formula I: ##STR00506## in which ##STR00507## denotes ##STR00508## ##STR00509## denotes ##STR00510## n denotes 0 or 1; R.sup.11 and R.sup.12 independently of each other denotes an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen, or R.sup.11 alternatively denotes R.sup.1 and R.sup.12 alternatively denotes X.sup.1; R.sup.1 denotes an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen; and X.sup.1 denotes F, Cl, fluorinated alkyl, fluorinated alkenyl, fluorinated alkoxy, or fluorinated alkenyloxy, from which compounds of formulae B, VII, and IX are excluded: ##STR00511## and wherein the respective rings, are each optionally substituted by one or two alkyl groups.

6. The medium according to claim 1, further comprising one or more compounds selected from the group of compounds of formulae VI to IX: ##STR00512## wherein R.sup.61, R.sup.62, R.sup.71, R.sup.72, R.sup.81, R.sup.82, R.sup.91, and R.sup.92 independently of each other, denotes an alkyl radical having 1 to 15 C atoms, wherein one or more CH.sub.2 groups in these radicals are each optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, 1,3-cyclopentenylene, 1,2-cyclopropyl, alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, in such a way that O atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by halogen I denotes 0 or 1; ##STR00513## denotes ##STR00514## ##STR00515## denotes ##STR00516## Z.sup.8 denotes (CO)O, CH.sub.2O, CF.sub.2O, or CH.sub.2CH.sub.2; o denotes 0 or 1; ##STR00517## denotes ##STR00518## p and q independently of each other, denote 0 or 1, wherein the respective rings are each optionally substituted by one or two alkyl groups, and the compounds of formula VII are excluded from the compounds of formula IX.

7. The medium according to claim 1, having a total concentration of the one or more compounds of formula B in the medium as a whole of 1% or more to 60% or less.

8. The medium according to claim 1, further comprising one or more chiral compounds and/or one or more stabilizers.

9. An electro-optical display or electro-optical component, comprising the liquid-crystalline medium according to claim 1.

10. The electro-optical display according to claim 9, wherein the electro-optical display is based on an IPS- or FFS mode.

11. The electro-optical display according to claim 9, wherein the electro-optical display comprises an active-matrix addressing device.

12. A method of using the medium according to claim 1, comprising incorporating the medium in an electro-optical display or in an electro-optical component.

13. A process for preparing the liquid-crystalline medium according to claim 1, comprising mixing one or more compounds of formula C and one or more compounds of formula B with one or more additional mesogenic compounds and optionally one or more additives.

14. The liquid-crystalline medium according to claim 1, wherein one or more CH.sub.2 groups in R.sup.C1 and R.sup.C2 are each replaced, independently of one another, by 1,2-cyclopropyl, 1,3-cyclopentyl, 1,3-cyclopentenylene, or alkyl, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms.

15. The liquid-crystalline medium according to claim 14, wherein R.sup.C1 and R.sup.C2 are independently of one another alkyl or alkenyl having 2 to 7 C atoms, in which one CH.sub.2 group is optionally replaced by cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene.

16. The liquid-crystalline medium according to claim 15, wherein R.sup.C1 and R.sup.C2 are independently of one another alkyl or alkenyl having 2 to 7 C atoms, in which one CH.sub.2 group is optionally replaced by cyclopropylene or 1,3-cyclopentenylene.

17. The liquid-crystalline medium according to claim 1, wherein R.sup.1 denotes an alkyl radical having 1 to 7 C atoms, wherein one or more CH.sub.2 groups in this radical each is optionally replaced, independently of one another, by CHCH, CC, CF.sub.2O, OCF.sub.2, O, (CO)O, O(CO), cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene.

18. The liquid-crystalline medium according to claim 2, wherein R.sup.2 and R.sup.3, independently of one another, denote alkyl, alkoxy, fluorinated alkyl, or fluorinated alkoxy having 1 to 7 C atoms, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms.

19. The liquid-crystalline medium according to claim 4, wherein R.sup.1 denotes alkyl, alkoxy, fluorinated alkyl, fluorinated alkoxy, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl.

20. The liquid-crystalline medium according to claim 5, wherein R.sup.11 and R.sup.12, independently of each other, denote alkyl, alkoxy, fluorinated alkyl having 1 to 7 C atoms, wherein one CH.sub.2 group is optionally replaced by a 1,2-cyclopropyl group, by a 1,3-cyclopentyl group, or by a 1,3-cyclopentenylene group, or fluorinated alkoxy, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms, and R.sup.1 denotes alkyl, alkoxy, fluorinated alkyl, or fluorinated alkoxy, wherein one CH.sub.2 group is optionally replaced by a 1,2-cyclopropyl group, by a 1,3-cyclopentyl group, or by a 1,3-cyclopentenylene group, alkenyl, alkenyloxy, alkoxyalkyl, or fluorinated alkenyl having 2 to 7 C atoms.

Description

EXAMPLES

(1) The following examples explain the present invention without restricting it in any way. However, the physical properties make it clear to the person skilled in the art what properties can be achieved and in what ranges they can be modified. In particular, the combination of the various properties which can preferably be achieved is thus well defined for the person skilled in the art.

(2) In the following table the following abbreviations for the end groups are used

(3) TABLE-US-00008 Abbreviation Short Structure C-C.sub.3H.sub.5 C3 0 C-C.sub.3H.sub.5CH.sub.2 C3-1 C-C.sub.4H.sub.7 C4 C-C.sub.5H.sub.7 C5(en) C-C.sub.5H.sub.9 C5

(4) The physical properties are given at a temperature of 20 C. and .sub.1 is given in mPa.Math.s.

(5) TABLE-US-00009 Compound Examples/Examples of preferentially used compounds C-1 No: 1- R.sup.C1 R.sup.C2 Phase Range; properties 1 CH.sub.3 CH.sub.3 2 C.sub.2H.sub.5 CH.sub.3 K 136 I 3 n-C.sub.3H.sub.7 CH.sub.3 K 161 I 4 n-C.sub.4H.sub.9 CH.sub.3 K 130 I 5 n-C.sub.5H.sub.11 CH.sub.3 6 n-C.sub.6H.sub.13 CH.sub.3 7 n-C.sub.7H.sub.15 CH.sub.3 8 n-C.sub.8H.sub.17 CH.sub.3 9 CH.sub.3 C.sub.2H.sub.5 10 C.sub.2H.sub.5 C.sub.2H.sub.5 11 n-C.sub.3H.sub.7 C.sub.2H.sub.5 12 n-C.sub.4H.sub.9 C.sub.2H.sub.5 13 n-C.sub.5H.sub.11 C.sub.2H.sub.5 14 n-C.sub.6H.sub.13 C.sub.2H.sub.5 15 n-C.sub.7H.sub.15 C.sub.2H.sub.5 16 n-C.sub.8H.sub.17 C.sub.2H.sub.5 17 C-C.sub.3H.sub.5 C.sub.2H.sub.5 18 c-C.sub.3H.sub.5CH.sub.2 C.sub.2H.sub.5 19 c-C.sub.4H.sub.7 C.sub.2H.sub.5 20 c-C.sub.5H.sub.7 C.sub.2H.sub.5 21 c-C.sub.5H.sub.9 C.sub.2H.sub.5 22 CH.sub.3 n-C.sub.3H.sub.7 23 C.sub.2H.sub.5 n-C.sub.3H.sub.7 24 n-C.sub.3H.sub.7 n-C.sub.3H.sub.7 25 n-C.sub.4H.sub.9 n-C.sub.3H.sub.7 26 n-C.sub.5H.sub.11 n-C.sub.3H.sub.7 27 n-C.sub.6H.sub.13 n-C.sub.3H.sub.7 28 n-C.sub.7H.sub.15 n-C.sub.3H.sub.7 29 n-C.sub.8H.sub.17 n-C.sub.3H.sub.7 30 CH.sub.3 n-C.sub.4H.sub.9 31 C.sub.2H.sub.5 n-C.sub.4H.sub.9 32 n-C.sub.3H.sub.7 n-C.sub.4H.sub.9 33 n-C.sub.4H.sub.9 n-C.sub.4H.sub.9 34 n-C.sub.5H.sub.11 n-C.sub.4H.sub.9 35 n-C.sub.6H.sub.13 n-C.sub.4H.sub.9 36 n-C.sub.7H.sub.15 n-C.sub.4H.sub.9 37 n-C.sub.8H.sub.17 n-C.sub.4H.sub.9 38 CH.sub.3 n-C.sub.5H.sub.11 39 C.sub.2H.sub.5 n-C.sub.5H.sub.11 40 n-C.sub.3H.sub.7 n-C.sub.5H.sub.11 41 n-C.sub.4H.sub.9 n-C.sub.5H.sub.11 42 n-C.sub.5H.sub.11 n-C.sub.5H.sub.11 43 n-C.sub.6H.sub.13 n-C.sub.5H.sub.11 44 n-C.sub.7H.sub.15 n-C.sub.5H.sub.11 45 n-C.sub.8H.sub.17 n-C.sub.5H.sub.11 46 n-C.sub.3H.sub.7 O-n-C.sub.2H.sub.5 K 150 I 47 n-C.sub.3H.sub.7 O-n-C.sub.3H.sub.7 K 136 I 48 n-C.sub.3H.sub.7 O-n-C.sub.4H.sub.9 K 127 (N) 109 I 49 n-C.sub.3H.sub.7 O-n-C.sub.5H.sub.11 K 131 N (111.5) I 50 n-C.sub.4H.sub.9 O-n-C.sub.3H.sub.7 K 133 I 51 n-C.sub.4H.sub.9 O-n-C.sub.4H.sub.9 K 124 I 52 n-C.sub.4H.sub.9 O-n-C.sub.5H.sub.11 K 118 N (113.0) I

(6) TABLE-US-00010 Further Compound Examples/Examples of preferentially used compounds C-3 No: 2- R.sup.C1 R.sup.C2 Phase Range; properties 1 CH.sub.3 CH.sub.3 2 C.sub.2H.sub.5 CH.sub.3 K 103 N 114.3 I 3 n-C.sub.3H.sub.7 CH.sub.3 K 125 N 145.0 I 4 n-C.sub.4H.sub.9 CH.sub.3 K 110 N 143.3 I 5 n-C.sub.5H.sub.11 CH.sub.3 6 n-C.sub.6H.sub.13 CH.sub.3 7 n-C.sub.7H.sub.15 CH.sub.3 8 n-C.sub.8H.sub.17 CH.sub.3 9 CH.sub.3 C.sub.2H.sub.5 10 C.sub.2H.sub.5 C.sub.2H.sub.5 11 n-C.sub.3H.sub.7 C.sub.2H.sub.5 K 113 N 133.3 I 12 n-C.sub.4H.sub.9 C.sub.2H.sub.5 13 n-C.sub.5H.sub.11 C.sub.2H.sub.5 14 n-C.sub.6H.sub.13 C.sub.2H.sub.5 15 n-C.sub.7H.sub.15 C.sub.2H.sub.5 16 n-C.sub.8H.sub.17 C.sub.2H.sub.5 17 CH.sub.3 n-C.sub.3H.sub.7 18 C.sub.2H.sub.5 n-C.sub.3H.sub.7 19 n-C.sub.3H.sub.7 n-C.sub.3H.sub.7 K 101 N 143.3 I 20 n-C.sub.4H.sub.9 n-C.sub.3H.sub.7 21 n-C.sub.5H.sub.11 n-C.sub.3H.sub.7 22 n-C.sub.6H.sub.13 n-C.sub.3H.sub.7 23 n-C.sub.7H.sub.15 n-C.sub.3H.sub.7 24 n-C.sub.8H.sub.17 n-C.sub.3H.sub.7 25 CH.sub.3 n-C.sub.4H.sub.9 26 C.sub.2H.sub.5 n-C.sub.4H.sub.9 27 n-C.sub.3H.sub.7 n-C.sub.4H.sub.9 K 85 SmA (85) N 135.2 I 28 n-C.sub.4H.sub.9 n-C.sub.4H.sub.9 29 n-C.sub.5H.sub.11 n-C.sub.4H.sub.9 30 n-C.sub.6H.sub.13 n-C.sub.4H.sub.9 31 n-C.sub.7H.sub.15 n-C.sub.4H.sub.9 32 n-C.sub.8H.sub.17 n-C.sub.4H.sub.9 33 CH.sub.3 n-C.sub.5H.sub.11 34 C.sub.2H.sub.5 n-C.sub.5H.sub.11 35 n-C.sub.3H.sub.7 n-C.sub.5H.sub.11 K 81 SmA 93 N 145.9 I 36 n-C.sub.4H.sub.9 n-C.sub.5H.sub.11 37 n-C.sub.5H.sub.11 n-C.sub.5H.sub.11 38 n-C.sub.6H.sub.13 n-C.sub.5H.sub.11 39 n-C.sub.7H.sub.15 n-C.sub.5H.sub.11 40 n-C.sub.8H.sub.17 n-C.sub.5H.sub.11 41 n-C.sub.2H.sub.5 O-C.sub.2H.sub.5 K 107 N 155.0 I 42 n-C.sub.2H.sub.5 O-n-C.sub.3H.sub.7 K 112 N 147.3 I 43 n-C.sub.2H.sub.5 O-n-C.sub.4H.sub.9 K 98 N 149.4 I 44 n-C.sub.2H.sub.5 O-n-C.sub.5H.sub.11 K 88 N 144.2 I 45 n-C.sub.3H.sub.7 O-C.sub.2H.sub.5 K 118 N 179.2 I 46 n-C.sub.3H.sub.7 O-n-C.sub.4H.sub.9 K 111 N 169.7 I 47 n-C.sub.3H.sub.7 O-n-C.sub.3H.sub.7 K 133 N 171.5 I 48 n-C.sub.3H.sub.7 O-n-C.sub.5H.sub.11 K 104 N 165.2 I 49 n-C.sub.4H.sub.9 O-C.sub.2H.sub.5 K 124 N 175.5 I 50 n-C.sub.4H.sub.9 O-n-C.sub.3H.sub.7 K 124 N 169.0 I 51 n-C.sub.4H.sub.9 O-n-C.sub.4H.sub.9 K 111 SmC (106) N 169.6 I 52 n-C.sub.4H.sub.9 O-n-C.sub.5H.sub.11 K 102 N 164.6 I 53 n-C.sub.5H.sub.11 O-C.sub.2H.sub.5 K 128 N 179.6 I

Mixture Examples

(7) In the following exemplary mixtures are disclosed.

Comparative Example 1

(8) The following mixture (CM-1) is prepared and investigated.

(9) TABLE-US-00011 Mixture CM-1 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 49.5 T(N, I) = 80.5 C. 2 CCP-V-1 6.0 n(20 C., 589 nm) = 0.0996 3 PGP-2-2V 1.0 n.sub.e(20 C., 589 nm) = 1.5829 4 PUQU-3-F 9.0 (20 C., 1 kHz) = 2.3 5 CDUQU-3-F 7.5 .sub.(20 C., 1 kHz) = 5.3 6 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 7.7 7 CPY-2-O2 3.0 k.sub.11(20 C.) = 13.3 pN 8 CPY-3-O2 10.0 k.sub.33(20 C.) = 14.2 pN 9 COB(S)-2-O4 12.5 V.sub.0(20 C.) = 2.52 V 10 Y-4O-O4 1.0 .sub.1(20 C.) = 70 mPa .Math. s 100.0

(10) This mixture, mixture CM-1, offers rather high transmittance.

Example 1

(11) The following mixture (M-1) is prepared and investigated.

(12) TABLE-US-00012 Mixture M-1 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 47.0 T(N, I) = 78.0 C. 2 CCP-V-1 13.5 n(20 C., 589 nm) = 0.0993 3 PGP-2-2V 1.0 n.sub.e(20 C., 589 nm) = 1.5823 4 PUQU-3-F 4.0 (20 C., 1 kHz) = 2.3 5 CDUQU-3-F 7.5 .sub.(20 C., 1 kHz) = 5.2 6 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 7.5 7 Y-4O-O4 3.0 k.sub.11(20 C.) = 13.7 pN 8 COB(S)-2-O4 6.5 k.sub.33(20 C.) = 13.6 pN 9 LB-3-T 7.0 V.sub.0(20 C.) = 2.58 V 10 LB(S)-3-OT 10.0 .sub.1(20 C.) = 65 mPa .Math. s 100.0

(13) This mixture, mixture M-1, has a faster response time parameter and high transmittance.

Example 2

(14) The following mixture (M-2) is prepared and investigated.

(15) TABLE-US-00013 Mixture M-2 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 48.0 T(N, I) = 79.0 C. 2 CCP-V-1 5.5 n(20 C., 589 nm) = 0.1004 3 PUQU-3-F 2.5 n.sub.e(20 C., 589 nm) = 1.5822 4 CDUQU-3-F 11.0 (20 C., 1 kHz) = 2.4 5 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 5.9 6 Y-4O-O4 3.0 .sub.(20 C., 1 kHz) = 8.3 7 CPY-3-O2 6.0 k.sub.11(20 C.) = 14.0 pN 8 COB(S)-2-O4 6.5 k.sub.33(20 C.) = 13.8 pN 9 LB-3-T 7.0 V.sub.0(20 C.) = 2.55 V 10 LB(S)-3-OT 10.0 .sub.1/k.sub.11(20 C.) = 74 mPa .Math. s 100.0

(16) This mixture, mixture M-2, has a higher transmittance.

Example 3

(17) The following mixture (M-3) is prepared and investigated.

(18) TABLE-US-00014 Mixture M-3 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 52.0 T(N, I) = 74.2 C. 2 PP-1-2V1 2.5 n(20 C., 589 nm) = 0.0990 3 CCQU-3-F 3.0 n.sub.e(20 C., 589 nm) = 1.5798 4 PUQU-2-F 2.5 (20 C., 1 kHz) = 2.0 5 DGUQU-4-F 6.5 .sub.(20 C., 1 kHz) = 5.7 6 CY-3-O4 2.5 .sub.(20 C., 1 kHz) = 7.7 7 CLY-3-O2 7.0 k.sub.11(20 C.) = 13.8 pN 8 COB(S)-2-O4 7.0 k.sub.33(20 C.) = 13.5 pN 9 LB-3-T 7.5 V.sub.0(20 C.) = 2.77 V 10 LB(S)-3-OT 9.5 .sub.1(20 C.) = 65 mPa .Math. s 100.0

(19) This mixture, mixture M-3, has a fast response time and high transmittance.

Example 4

(20) The following mixture (M-4) is prepared and investigated.

(21) TABLE-US-00015 Mixture M-4 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 47.0 T(N, I) = 76.0 C. 2 CC-3-V1 5.0 n(20 C., 589 nm) = 0.1000 3 PP-1-2V1 2.5 n.sub.e(20 C., 589 nm) = 1.5806 4 CLY-3-O2 7.0 (20 C., 1 kHz) = 2.0 5 CCQU-3-F 3.0 .sub.(20 C., 1 kHz) = 5.7 6 PUQU-2-F 2.5 .sub.(20 C., 1 kHz) = 7.7 7 DGUQU-4-F 6.5 k.sub.11(20 C.) = 14.3 pN 8 CY-3-O4 2.5 k.sub.33(20 C.) = 13.7 pN 9 COB(S)-2-O4 7.0 V.sub.0(20 C.) = 2.83 V 10 LB-3-T 7.5 .sub.1(20 C.) = 69 mPa .Math. s 11 LB(S)-3-OT 9.5 100.0

(22) This mixture, mixture M-4, has a good combination of properties.

Example 5

(23) The following mixture (M-5) is prepared and investigated.

(24) TABLE-US-00016 Mixture M-5 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 55.0 T(N, I) = 76.5 C. 2 PGP-2-2V 1.0 n(20 C., 589 nm) = 0.1000 3 CCP-2-OT 6.5 n.sub.e(20 C., 589 nm) = 1.5809 4 DPGU-4-F 3.5 (20 C., 1 kHz) = 1.9 5 DGUQU-4-F 5.0 .sub.(20 C., 1 kHz) = 5.5 6 PY-4-O2 2.5 .sub.(20 C., 1 kHz) = 7.4 7 COB(S)-2-O4 10.0 k.sub.11(20 C.) = 14.2 pN 8 LB-3-T 10.0 k.sub.33(20 C.) = 12.5 pN 9 LB(S)-3-OT 6.5 V.sub.0(20 C.) = 2.91 V 100.0 .sub.1(20 C.) = 68 mPa .Math. s

(25) This mixture, mixture M-5, has a good combination of properties

Example 6

(26) The following mixture (M-6) is prepared and investigated.

(27) TABLE-US-00017 Mixture M-6 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 45.0 T(N, I) = 80.0 C. 2 CCP-V-1 13.5 n(20 C., 589 nm) = 0.0998 3 PUQU-3-F 5.0 n.sub.e(20 C., 589 nm) = 1.5826 4 CDUQU-3-F 10.0 (20 C., 1 kHz) = 3.2 5 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 5.4 6 Y-4O-O4 2.5 .sub.(20 C., 1 kHz) = 8.5 7 COB(S)-2-O4 7.0 k.sub.11(20 C.) = 14.0 pN 8 LB-3-T 7.0 k.sub.33(20 C.) = 14.2 pN 9 LB(S)-3-OT 9.5 V.sub.0(20 C.) = 2.21 V 100.0 .sub.1(20 C.) = 70 mPa .Math. s

(28) This mixture, mixture M-6, has a good combination of properties

Example 7

(29) The following mixture (M-7) is prepared and investigated.

(30) TABLE-US-00018 Mixture M-7 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 46.5 T(N, I) = 79.5 C. 2 CCP-V-1 14.0 n(20 C., 589 nm) = 0.0996 3 PGP-2-2V 1.0 n.sub.e(20 C., 589 nm) = 1.5830 4 PUQU-3-F 3.5 (20 C., 1 kHz) = 2.3 5 CDUQU-3-F 8.0 .sub.(20 C., 1 kHz) = 5.3 6 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 7.5 7 Y-4O-O4 3.0 k.sub.11(20 C.) = 13.9 pN 8 COB(S)-2-O4 7.0 k.sub.33(20 C.) = 14.0 pN 9 LB-3-T 7.0 V.sub.0(20 C.) = 2.61 V 10 LB(S)-3-OT 9.5 .sub.1(20 C.) = 67 mPa .Math. s 100.0

(31) This mixture, mixture M-7, has a good combination of properties.

Example 8

(32) The following mixture (M-8) is prepared and investigated.

(33) TABLE-US-00019 Mixture M-8 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 51.0 T(N, I) = 80.0 C. 2 CCP-3-OT 9.5 n(20 C., 589 nm) = 0.0993 3 DPGU-4-F 3.0 n.sub.e(20 C., 589 nm) = 1.5784 4 CDUQU-3-F 4.5 (20 C., 1 kHz) = 3.0 5 DGUQU-4-F 4.0 .sub.(20 C., 1 kHz) = 5.3 6 PY-4-O2 4.0 .sub.(20 C., 1 kHz) = 8.4 7 COB(S)-2-O4 7.0 k.sub.11(20 C.) = 14.7 pN 8 LB-3-T 7.0 k.sub.33(20 C.) = 13.7 pN 9 LB(S)-3-OT 10.0 V.sub.0(20 C.) = 2.32 V 100.0 .sub.1(20 C.) = 69 mPa .Math. s

(34) This mixture, mixture M-8, has a good combination of properties.

Example 9

(35) The following mixture (M-9) is prepared and investigated.

(36) TABLE-US-00020 Mixture M-9 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 51.0 T(N, I) = 79.5 C. 2 CCP-V-1 1.5 n(20 C., 589 nm) = 0.0985 3 CCP-3-OT 9.5 n.sub.e(20 C., 589 nm) = 1.5780 4 DPGU-4-F 2.5 (20 C., 1 kHz) = 2.4 5 CDUQU-3-F 4.0 .sub.(20 C., 1 kHz) = 5.3 6 DGUQU-4-F 3.0 .sub.(20 C., 1 kHz) = 7.7 7 PY-4-O2 4.5 k.sub.11(20 C.) = 14.8 pN 8 COB(S)-2-O4 7.0 k.sub.33(20 C.) = 13.2 pN 9 LB-3-T 7.0 V.sub.0(20 C.) = 2.62 V 10 LB(S)-3-OT 10.0 .sub.1(20 C.) = 65 mPa .Math. s 100.0

(37) This mixture, mixture M-9, has a good combination of properties.

Example 10

(38) The following mixture (M-10) is prepared and investigated.

(39) TABLE-US-00021 Mixture M-10 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 49.5 T(N, I) = 79.5 C. 2 CCP-V-1 1.5 n(20 C., 589 nm) = 0.1001 3 CCP-3-OT 9.5 n.sub.e(20 C., 589 nm) = 1.5799 4 DPGU-4-F 2.5 (20 C., 1 kHz) = 2.5 5 CDUQU-3-F 4.5 .sub.(20 C., 1 kHz) = 5.4 6 DGUQU-4-F 3.0 .sub.(20 C., 1 kHz) = 7.9 7 PY-4-O2 5.5 k.sub.11(20 C.) = 14.7 pN 8 COB(S)-2-O4 7.0 k.sub.33(20 C.) = 13.6 pN 9 LB-3-T 7.0 V.sub.0(20 C.) = 2.58 V 10 LB(S)-3-OT 10.0 .sub.1(20 C.) = 68 mPa .Math. s 100.0

(40) This mixture, mixture M-10, has a good combination of properties.

Example 11

(41) The following mixture (M-11) is prepared and investigated.

(42) TABLE-US-00022 Mixture M-11 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 49.0 T(N, I) = 78.0 C. 2 CCP-V-1 2.5 n(20 C., 589 nm) = 0.0992 3 CCP-3-OT 5.5 n.sub.e(20 C., 589 nm) = 1.5798 4 CCU-V-F 5.0 (20 C., 1 kHz) = 2.4 5 DPGU-4-F 2.5 .sub.(20 C., 1 kHz) = 5.4 6 CDUQU-3-F 4.5 .sub.(20 C., 1 kHz) = 7.8 7 DGUQU-4-F 2.0 k.sub.11(20 C.) = 13.8 pN 8 PY-4-O2 5.0 k.sub.33(20 C.) = 13.6 pN 9 COB(S)-2-O4 7.0 V.sub.0(20 C.) = 2.54 V 10 LB-3-T 7.0 .sub.1(20 C.) = 65 mPa .Math. s 11 LB(S)-3-OT 10.0 100.0

(43) This mixture, mixture M-11, has a good combination of properties.

Example 12

(44) The following mixture (M-12) is prepared and investigated.

(45) TABLE-US-00023 Mixture M-12 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 51.0 T(N, I) = 85.0 C. 2 PP-1-2V1 0.5 n(20 C., 589 nm) = 0.1000 3 CCP-3-OT 8.5 n.sub.e(20 C., 589 nm) = 1.5792 4 DGUQU-4-F 5.5 (20 C., 1 kHz) = 2.7 5 CDUQU-3-F 5.0 .sub.(20 C., 1 kHz) = 5.5 6 CPY-3-O2 3.5 .sub.(20 C., 1 kHz) = 8.2 7 COB(S)-2-O4 9.0 k.sub.11(20 C.) = 15.3 pN 8 LB-3-T 7.0 k.sub.33(20 C.) = 14.7 pN 9 LB(S)-3-OT 10.0 V.sub.0(20 C.) = 2.53 V 100.0 .sub.1(20 C.) = 76 mPa .Math. s

(46) This mixture, mixture M-12, has a good combination of properties.

Example 13

(47) The following mixture (M-13) is prepared and investigated.

(48) TABLE-US-00024 Mixture M-13 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 50.5 T(N, I) = 78.0 C. 2 CCP-V-1 5.0 n(20 C., 589 nm) = 0.0996 3 PP-1-2V1 1.0 n.sub.e(20 C., 589 nm) = 1.5816 4 PPGU-3-F 0.5 (20 C., 1 kHz) = 2.4 5 CDUQU-3-F 11.0 .sub.(20 C., 1 kHz) = 5.9 6 PGUQU-3-F 2.5 .sub.(20 C., 1 kHz) = 8.2 7 Y-4O-O4 3.0 k.sub.11(20 C.) = 14.0 pN 8 COB(S)-2-O4 11.0 k.sub.33(20 C.) = 13.6 pN 9 LB-3-T 7.0 V.sub.0(20 C.) = 2.57 V 10 LB(S)-3-OT 8.5 .sub.1(20 C.) = 71 mPa .Math. s 100.0

(49) This mixture, mixture M-13, has a good combination of properties.

Example 14

(50) The following mixture (M-14) is prepared and investigated.

(51) TABLE-US-00025 Mixture M-14 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 47.0 T(N, I) = 79.0 C. 2 CCP-V-1 4.5 n(20 C., 589 nm) = 0.0993 3 PPGU-3-F 0.5 n.sub.e(20 C., 589 nm) = 1.5804 4 PUQU-3-F 4.0 (20 C., 1 kHz) = 2.3 5 CDUQU-3-F 8.0 .sub.(20 C., 1 kHz) = 6.1 6 PGUQU-3-F 1.5 .sub.(20 C., 1 kHz) = 8.4 7 Y-4O-O4 3.0 k.sub.11(20 C.) = 13.9 pN 8 CCY-3-O2 8.0 k.sub.33(20 C.) = 14.2 pN 9 COB(S)-2-O4 6.5 V.sub.0(20 C.) = 2.60 V 10 LB-3-T 7.0 .sub.1(20 C.) = 78 mPa .Math. s 11 LB(S)-3-OT 10.0 100.0

(52) This mixture, mixture M-14, has a good combination of properties.

Example 15

(53) The following mixture (M-15) is prepared and investigated.

(54) TABLE-US-00026 Mixture M-15 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 48.0 T(N, I) = 80.0 C. 2 CCP-V-1 5.5 n(20 C., 589 nm) = 0.1006 3 PPGU-3-F 0.5 n.sub.e(20 C., 589 nm) = 1.5822 4 PUQU-3-F 1.5 (20 C., 1 kHz) = 2.2 5 CDUQU-3-F 11.5 .sub.(20 C., 1 kHz) = 5.9 6 Y-4O-O4 3.0 .sub.(20 C., 1 kHz) = 8.2 7 CPY-3-O2 6.5 k.sub.11(20 C.) = 14.1 pN 8 COB(S)-2-O4 6.5 k.sub.33(20 C.) = 13.8 pN 9 LB-3-T 7.0 V.sub.0(20 C.) = 2.66 V 10 LB(S)-3-OT 10.0 .sub.1(20 C.) = 75 mPa .Math. s 100.0

(55) This mixture, mixture M-15, has a good combination of properties.

Example 16

(56) The following mixture (M-16) is prepared and investigated.

(57) TABLE-US-00027 Mixture M-16 Composition Concentra- tion Compound /% by No. Abbreviation weight Physical properties 1 CC-3-V 29.0 T(N, I) = 78.5 C. 2 CC-V-V1 20.0 n(20 C., 589 nm) = 0.1001 3 CCP-V-1 11.0 n.sub.e(20 C., 589 nm) = 1.5830 4 CDUQU-3-F 2.5 (20 C., 1 kHz) = 2.3 5 DGUQU-4-F 3.5 .sub.(20 C., 1 kHz) = 5.4 6 PGUQU-4-F 5.5 .sub.(20 C., 1 kHz) = 7.7 7 Y-4O-O4 4.0 k.sub.11(20 C.) = 13.1 pN 8 CLY-3-O2 9.0 k.sub.11/k.sub.33(20 C.) = 1.15 pN 9 COB(S)-2-O4 2.5 V.sub.0(20 C.) = 2.30 V 10 LB-3-T 9.0 11 LB(S)-3-OT 4.0 100.0

(58) This mixture, mixture M-16, has a good combination of properties.

Example 17

(59) The following mixture (M-17) is prepared and investigated.

(60) TABLE-US-00028 Mixture M-17 Composition Concentra- tion Compound /% by No. Abbreviation weight Physical properties 1 CC-3-V 29.0 T(N, I) = 80.0 C. 2 CC-V-V1 25.0 n(20 C., 589 nm) = 0.1005 3 CCP-V-1 5.0 n.sub.e(20 C., 589 nm) = 1.5818 4 CDUQU-3-F 7.0 (20 C., 1 kHz) = 2.1 5 CLY-3-O2 8.0 .sub.(20 C., 1 kHz) = 5.4 6 COB(S)-2-O4 4.0 .sub.(20 C., 1 kHz) = 7.5 7 PGUQU-4-F 4.5 k.sub.11(20 C.) = 13.6 pN 8 Y-4O-O4 2.0 k.sub.33(20 C.) = 15.3 pN 9 LB-3-T 10.0 V.sub.0(20 C.) = 2.71 V 10 LB(S)-3-OT 5.5 100.0

(61) This mixture, mixture M-17, has a good combination of properties.

Example 18

(62) The following mixture (M-18) is prepared and investigated.

(63) TABLE-US-00029 Mixture M-18 Composition Concentra- tion Compound /% by No. Abbreviation weight Physical properties 1 CC-3-V 48.5 T(N, I) = 77.1 C. 2 CCP-V-1 8.0 n(20 C., 589 nm) = 0.1004 3 CDUQU-3-F 3.5 n.sub.e(20 C., 589 nm) = 1.5836 4 PGUQU-3-F 5.5 (20 C., 1 kHz) = 2.2 5 PGUQU-4-F 4.0 .sub.(20 C., 1 kHz) = 5.4 6 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 7.6 7 CY-3-O2 10.0 k.sub.11(20 C.) = 12.8 pN 8 COB(S)-2-O4 10.0 k.sub.33(20 C.) = 14.4 pN 9 LB(S)-3-OT 10.0 100.0

(64) This mixture, mixture M-18, has a good combination of properties.

Example 19

(65) The following mixture (M-19) is prepared and investigated.

(66) TABLE-US-00030 Mixture M-19 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 52.5 T(N, I) = 78.6 C. 2 CCP-V-1 4.0 n(20 C., 589 nm) = 0.1005 3 CDUQU-3-F 7.5 n.sub.e(20 C., 589 nm) = 1.5820 4 PGUQU-3-F 5.5 (20 C., 1 kHz) = 2.4 5 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 5.7 6 CY-3-O2 4.0 .sub.(20 C., 1 kHz) = 8.1 7 COB(S)-2-O4 10.0 k.sub.11(20 C.) = 13.8 pN 8 LB-3-T 8.0 k.sub.33(20 C.) = 14.4 pN 9 LB(S)-3-OT 8.0 .sub.1(20 C.) = 77 mPa .Math. s 100.0

(67) This mixture, mixture M-19, has a good combination of properties.

Example 20

(68) The following mixture (M-20) is prepared and investigated.

(69) TABLE-US-00031 Mixture M-20 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 52.5 T(N, I) = 77.9 C. 2 CCP-V-1 4.0 n(20 C., 589 nm) = 0.1008 3 APUQU-2-F 5.0 n.sub.e(20 C., 589 nm) = 1.5834 4 APUQU-3-F 8.0 (20 C., 1 kHz) = 2.4 5 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 5.6 6 CY-3-O2 4.0 .sub.(20 C., 1 kHz) = 8.0 7 COB(S)-2-O4 10.0 k.sub.11(20 C.) = 13.8 pN 8 LB-3-T 8.0 k.sub.33(20 C.) = 13.7 pN 9 LB(S)-3-OT 8.0 .sub.1(20 C.) = 80 mPa .Math. s 100.0

(70) This mixture, mixture M-20, has a good combination of properties.

Example 21

(71) The following mixture (M-21) is prepared and investigated.

(72) TABLE-US-00032 Mixture M-21 Composition Concentra- tion Compound /% by No. Abbreviation weight Physical properties 1 CC-3-V 42.5 T(N, I) = 79 C. 2 CCP-V-1 13.0 n(20 C., 589 nm) = 0.1013 3 CDUQU-3-F 8.0 n.sub.e(20 C., 589 nm) = 1.5841 4 PGUQU-3-F 5.0 (20 C., 1 kHz) = 2.5 5 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 5.7 6 CY-3-O2 10.0 .sub.(20 C., 1 kHz) = 8.2 7 COB(S)-2-O4 5.0 k.sub.11(20 C.) = 13.3 pN 8 LB-3-T 8.0 k.sub.33(20 C.) = 14.4 pN 9 LB(S)-3-OT 8.0 LTS.sub.bulk(20 C.) = 1,000 h 100.0

(73) This mixture, mixture M-21, has a good combination of properties.

Example 22

(74) The following mixture (M-22) is prepared and investigated.

(75) TABLE-US-00033 Mixture M-22 Composition Concentra- tion Compound /% by No. Abbreviation weight Physical properties 1 CC-3-V 44.0 T(N, I) = 85.8 C. 2 CC-3-V1 5.0 n(20 C., 589 nm) = 0.1004 3 CC-3-2V1 5.0 n.sub.e(20 C., 589 nm) = 1.5796 4 CCP-V2-1 2.0 (20 C., 1 kHz) = 2.4 5 CLP-3-T 3.0 .sub.(20 C., 1 kHz) = 5.3 6 PPGU-3-F 0.5 .sub.(20 C., 1 kHz) = 7.6 7 CCQU-3-F 4.0 k.sub.11(20 C.) = 17.4 pN 8 CDUQU-3-F 7.5 k.sub.33(20 C.) = 15.0 pN 9 PGUQU-4-F 1.0 10 COB(S)-2-O4 8.0 11 LB(S)-3-OT 10.0 12 LB-3-T 10.0 100.0

(76) This mixture, mixture M-22, has a good combination of properties.

Example 23

(77) The following mixture (M-23) is prepared and investigated.

(78) TABLE-US-00034 Mixture M-23 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 31.5 T(N, I) = 79.6 C. 2 CC-3-V1 8.0 n(20 C., 589 nm) = 0.1028 3 CC-3-2V1 11.0 n.sub.e(20 C., 589 nm) = 1.5803 4 PUQU-3-F 7.5 (20 C., 1 kHz) = 13.3 5 APUQU-2-F 8.0 .sub.(20 C., 1 kHz) = 4.4 6 APUQU-3-F 2.0 .sub.(20 C., 1 kHz) = 17.6 7 CDUQU-3-F 10.5 k.sub.11(20 C.) = 14.1 pN 8 DGUQU-4-F 5.0 k.sub.33(20 C.) = 14.1 pN 9 PGUQU-4-F 8.0 .sub.1(20 C.) = 88 mPa .Math. s 10 COB(S)-2-O4 3.0 11 LB(S)-3-OT 5.5 100.0

(79) This mixture, mixture M-23, has a good combination of properties.

Example 24

(80) The following mixture (M-24) is prepared and investigated.

(81) TABLE-US-00035 Mixture M-24 Composition Concentra- tion Compound /% by No. Abbreviation weight Physical properties 1 CC-3-V 23.5 T(N, I) = 95.6 C. 2 CC-3-V1 10.0 n(20 C., 589 nm) = 0.1112 3 CC-2-3 10.0 n.sub.e(20 C., 589 nm) = 1.5951 4 CCP-V-1 11.0 (20 C., 1 kHz) = 6.2 5 CCP-V2-1 4.5 .sub.(20 C., 1 kHz) = 4.2 6 CLP-3-T 8.0 .sub.(20 C., 1 kHz) = 10.5 7 DGUQU-4-F 4.0 k.sub.11(20 C.) = 18.1 pN 8 PGUQU-3-F 6.0 k.sub.33(20 C.) = 16.6 pN 9 PGUQU-4-F 8.0 10 PGUQU-5-F 2.0 11 COB(S)-2-O4 8.0 12 LB-3-T 5.0 100.0

(82) This mixture, mixture M-24, has a good combination of properties.

Example 25

(83) The following mixture (M-25) is prepared and investigated.

(84) TABLE-US-00036 Mixture M-25 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 26.0 T(N, I) = 98.6 C. 2 CC-3-V1 10.0 n(20 C., 589 nm) = 0.1112 3 CC-3-2V1 3.5 n.sub.e(20 C., 589 nm) = 1.5934 4 CC-2-3 4.0 (20 C., 1 kHz) = 5.9 5 CCP-V-1 10.5 .sub.(20 C., 1 kHz) = 4.1 6 CCP-V2-1 1.5 .sub.(20 C., 1 kHz) = 10.0 7 CCP-3-OT 6.0 k.sub.11(20 C.) = 18.9 pN 8 CLP-3-T 8.0 k.sub.33(20 C.) = 17.8 pN 9 DGUQU-4-F 1.5 .sub.1(20 C.) = 104 mPa .Math. s 10 PGUQU-3-F 6.0 11 PGUQU-4-F 8.0 12 PGUQU-5-F 3.0 13 COB(S)-2-O4 8.0 14 LB-3-T 4.0 100.0

(85) This mixture, mixture M-25, has a good combination of properties.

Example 26

(86) The following mixture (M-26) is prepared and investigated.

(87) TABLE-US-00037 Mixture M-26 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 26.0 T(N, I) = 99 C. 2 CC-3-V1 10.0 (20 C., 1 kHz) = 5.6 3 CC-2-3 5.5 .sub.(20 C., 1 kHz) = 4.2 4 CCP-V-1 7.5 .sub.(20 C., 1 kHz) = 9.7 5 CCP-3-OT 6.0 k.sub.11(20 C.) = 19.0 pN 6 CLP-3-T 7.5 k.sub.33(20 C.) = 17.8 pN 7 CCQU-3-F 6.0 8 PGUQU-3-F 5.0 9 PGUQU-4-F 8.0 10 PGUQU-5-F 1.5 11 COB(S)-2-O4 8.0 12 LB(S)-3-OT 9.0 100.0

(88) This mixture, mixture M-26, has a good combination of properties.

Example 27

(89) The following mixture (M-27) is prepared and investigated.

(90) TABLE-US-00038 Mixture M-27 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 26.0 T(N, I) = 100 C. 2 CC-3-V1 10.0 n(20 C., 589 nm) = 0.1114 3 CC-3-2V1 8.0 n.sub.e(20 C., 589 nm) = 1.5914 4 CCP-V-1 5.0 (20 C., 1 kHz) = 5.7 5 CCP-3-OT 7.5 .sub.(20 C., 1 kHz) = 5.3 6 CDUQU-3-F 9.5 .sub.(20 C., 1 kHz) = 11.0 7 DGUQU-4-F 4.0 k.sub.11(20 C.) = 20.5 pN 8 PGUQU-3-F 6.0 k.sub.33(20 C.) = 19.2 pN 9 COB(S)-2-O4 8.0 .sub.1(20 C.) = 113 mPa .Math. s 10 LB-3-T 7.0 11 LB(S)-3-OT 9.0 100.0

(91) This mixture, mixture M-27, has a good combination of properties.

Example 28

(92) The following mixture (M-28) is prepared and investigated.

(93) TABLE-US-00039 Mixture M-28 Composition Compound Concentration No. Abbreviation /% by weight Physical properties 1 CC-3-V 27.0 T(N, I) = 98 C. 2 CC-3-V1 10.0 n(20 C., 589 nm) = 0.1108 3 CC-3-2V1 8.0 n.sub.e(20 C., 589 nm) = 1.5923 4 CCP-V-1 10.0 (20 C., 1 kHz) = 5.8 5 CCP-3-OT 6.5 .sub.(20 C., 1 kHz) = 4.6 6 CDUQU-3-F 5.0 .sub.(20 C., 1 kHz) = 10.4 7 DGUQU-4-F 4.0 k.sub.11(20 C.) = 18.5 pN 8 PGUQU-3-F 3.5 k.sub.33(20 C.) = 17.8 pN 9 PGUQU-4-F 6.0 .sub.1(20 C.) = 99 mPa .Math. s 10 COB(S)-2-O4 4.0 LTS.sub.bulk(20 C.) = 1,000 h 11 LB-3-T 7.0 12 LB(S)-3-OT 9.0 100.0

(94) This mixture, mixture M-28, has a good combination of properties.

Example 29

(95) The following mixture (M-29) is prepared and investigated.

(96) TABLE-US-00040 Mixture M-29 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 55.0 2 COB(S)-2-O4 10.0 3 PY1-4-O2 2.5 4 LB(S)-3-OT 6.5 5 CCP-2-OT 6.5 6 DGUQU-4-F 5.0 7 DPGU-4-F 3.5 8 LB-3-T 10.0 9 PGP-2-2V 1.0 100.0

(97) This mixture, mixture M-29, has a good combination of properties

Example 30

(98) The following mixture (M-30) is prepared and investigated.

(99) TABLE-US-00041 Mixture M-30 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 49.0 2 CDUQU-3-F 4.5 3 COB(S)-2-O4 7.0 4 PY1-4-O2 5.0 5 LB(S)-3-OT 10.0 6 CCP-3-OT 5.5 7 DGUQU-C4-F 2.0 8 DPGU-C4-F 2.5 9 LB-3-T 7.0 10 CCP-V-1 2.5 11 CCU-V-F 5.0 100.0

(100) This mixture, mixture M-30, has a good combination of properties.

Example 31

(101) The following mixture (M-31) is prepared and investigated.

(102) TABLE-US-00042 Mixture M-31 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 29.0 2 CC-V-V1 25.0 3 CCP-V-1 5.0 4 CDUQU-3-F 7.0 5 CLY1-3-O2 8.0 6 COB(S)-2-O4 4.0 7 PGUQU1-4-F 4.5 8 Y-4O-O4 2.0 9 LB(S)-3-OT 5.5 10 LB-3-T 10.0 100.0

(103) This mixture, mixture M-31, has a good combination of properties.

Example 32

(104) The following mixture (M-32) is prepared and investigated.

(105) TABLE-US-00043 Mixture M-32 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 48.5 2 CCP-V-1 8.0 3 CDUQU-3-F 3.5 4 PGUQU-C3-F 5.5 5 PGUQU-C5-F 4.0 6 PPGU-3-F 0.5 7 COB(S)-2-O4 10.0 8 CY1-3-O2 10.0 9 LB(S)-3-OT 10.0 100.0

(106) This mixture, mixture M-32, has a good combination of properties.

Example 33

(107) The following mixture (M-33) is prepared and investigated.

(108) TABLE-US-00044 Mixture M-33 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 42.5 2 CCP-V-1 13.0 3 CDUQU-3C1-F 8.0 4 PGUQU-3C-F 5.0 5 PPGU-3-F 0.5 6 CY1-3-O2 10.0 7 COB(S)-2-O4 5.0 8 LB-3-T 8.0 9 LB(S)-3-OT 8.0 100.0

(109) This mixture, mixture M-33, has a good combination of properties.

Example 34

(110) The following mixture (M-34) is prepared and investigated.

(111) TABLE-US-00045 Mixture M-34 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 42.5 2 CCP-V-1 13.0 3 CDUQU-3-F 8.0 4 PGUQU-3-F 5.0 5 PPGU-3-F 0.5 6 CY1-3-O2 10.0 7 COB(S)-2-O4 5.0 8 LB-3-T 8.0 9 LB(S)-3-OT 8.0 100.0

(112) This mixture, mixture M-34, has a good combination of properties.

Example 35

(113) The following mixture (M-35) is prepared and investigated.

(114) TABLE-US-00046 Mixture M-35 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 31.5 2 CC-3-V1 8.0 3 CC-3-2V1 11.0 4 PUQU-C3-F 7.5 5 APUQU-2-F 8.0 6 APUQU-3-F 2.0 7 CDUQU-3-F 10.5 8 DGUQU-4-F 5.0 9 PGUQU-4-F 8.0 10 COB(S)-2-O4 3.0 11 LB(S)-3-OT 5.5 100.0

(115) This mixture, mixture M-35, has a good combination of properties.

Example 36

(116) The following mixture (M-36) is prepared and investigated.

(117) TABLE-US-00047 Mixture M-36 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 31.5 2 CC-3-V1 8.0 3 CC-3-2V1 11.0 4 PUQU-3-F 7.5 5 APUQU-2-F 8.0 6 APUQU1-3-F 2.0 7 CDUQU1-3-F 10.5 8 DGUQU1-4-F 5.0 9 PGUQU-4-F 8.0 10 COB(S)-2-O4 3.0 11 LB(S)-3-OT 5.5 100.0

(118) This mixture, mixture M-36, has a good combination of properties.

Example 37

(119) The following mixture (M-37) is prepared and investigated.

(120) TABLE-US-00048 Mixture M-37 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 26.0 2 CC-3-V1 10.0 3 CC-2-3 5.5 4 CCP-V-1 7.5 5 CCP-3-OT 6.0 6 CLP-3-T 7.5 7 CCQU-3-F 6.0 8 PGUQU-C3-F 5.0 9 PGUQU-C3-1-F 8.0 10 PGUQU-5-F 1.5 11 COB(S)-2-O4 8.0 12 LB(S)-3-OT 9.0 100.0

(121) This mixture, mixture M-37, has a good combination of properties.

Example 38

(122) The following mixture (M-38) is prepared and investigated.

(123) TABLE-US-00049 Mixture M-38 Composition Compound Concentration Physical No. Abbreviation /% by weight properties 1 CC-3-V 27.0 2 CC-3-V1 10.0 3 CC-3-2V1 8.0 4 CCP-V-1 10.0 5 CCP-3-OT 6.5 6 CDUQU-3-F 5.0 7 DGUQU1-4-F 4.0 8 PGUQU1-3-F 3.5 9 PGUQU-4-F 6.0 10 COB(S)-2-O4 4.0 11 LB-3-T 7.0 12 LB(S)-3-OT 9.0 100.0

(124) This mixture, mixture M-38, has a good combination of properties.

Examples 39.1 to 39.4

Example 39.1

(125) To the mixture M-1 of example 1 100 ppm of the compound S-1

(126) ##STR00477##
is added. The resultant mixture exhibits an excellent stability.

Example 39.2

(127) To the mixture M-1 of example 1 100 ppm of the compound S-2

(128) ##STR00478##
is added. The resultant mixture exhibits an excellent stability.

Example 39.3

(129) To the mixture M-1 of example 1 100 ppm of the compound S-3

(130) ##STR00479##
wherein n is 3, is added. The resultant mixture exhibits an excellent stability.

Example 39.4

(131) To the mixture M-1 of example 1 100 ppm of the compound S-4

(132) ##STR00480##
wherein n is 3, is added. The resultant mixture exhibits an excellent stability.

Examples 40.1 to 40.4

Example 40.1

(133) To the mixture M-2 of example 2 100 ppm of the compound S-1 is added. The resultant mixture exhibits an excellent stability.

Example 40.2

(134) To the mixture M-2 of example 2 100 ppm of the compound S-2 is added. The resultant mixture exhibits an excellent stability.

Example 40.3

(135) To the mixture M-2 of example 2 100 ppm of the compound S-3 is added. The resultant mixture exhibits an excellent stability.

Example 40.4

(136) To the mixture M-2 of example 2 100 ppm of the compound S-4 is added. The resultant mixture exhibits an excellent stability.

Examples 41.1 to 41.4

Example 41.1

(137) To the mixture M-3 of example 3 100 ppm of the compound S-1 is added. The resultant mixture exhibits an excellent stability.

Example 41.2

(138) To the mixture M-3 of example 3 100 ppm of the compound S-2 is added. The resultant mixture exhibits an excellent stability.

Example 41.3

(139) To the mixture M-3 of example 3 100 ppm of the compound S-3 is added. The resultant mixture exhibits an excellent stability.

Example 41.4

(140) To the mixture M-3 of example 3 100 ppm of the compound S-4 is added. The resultant mixture exhibits an excellent stability.

Examples 42.1 to 42.4

Example 42.1

(141) To the mixture M-28 of example 28 100 ppm of the compound S-1 is added. The resultant mixture exhibits an excellent stability.

Example 42.2

(142) To the mixture M-28 of example 28 100 ppm of the compound S-2 is added. The resultant mixture exhibits an excellent stability.

Example 42.3

(143) To the mixture M-28 of example 28 100 ppm of the compound S-3 is added. The resultant mixture exhibits an excellent stability.

Example 42.4

(144) To the mixture M-28 of example 28 100 ppm of the compound S-4 is added. The resultant mixture exhibits an excellent stability.

Example 43

(145) The following mixture (M-43) is prepared and investigated.

(146) TABLE-US-00050 Mixture M-43 CC-3-V 35.0 T(N, I) [ C.]: 111.5 CCGU-3-F 5.0 n [589 nm, 20 C.]: 0.1180 CCP-V-1 15.0 .sub. [1 kHz, 20 C.]: 8.6 CCP-V2-1 9.0 .sub. [1 kHz, 20 C.]: 3.4 CCVC-3-V 3.0 [1 kHz, 20 C.]: 5.2 CDUQU-3-F 5.5 .sub.1 [mPas, 20 C.]: COB(S)-2-O4 1.5 .sub.1 [mPas, 20 C.]: 108 DGUQU-4-F 3.0 K.sub.1 [pN, 20 C.]: 16.7 LB(S)-3-OT 4.0 K.sub.3 [pN, 20 C.]: 18.5 PGP-2-2V 7.0 V.sub.0 [V, 20 C.]: 1.89 PGUQU-3-F 3.5 PGUQU-4-F 3.5 PYP-2-3 3.0 PYP-2-4 2.0 100.0

(147) This mixture, mixture M-43, has a good combination of properties.

(148) To the mixture M-43 0.04% of the compound S-4 is added. The resultant mixture exhibits an excellent stability.

(149) To the mixture M-43 0.040% of the compound S-4 and 0.005% of the compound S-5

(150) ##STR00481##
are added. The resultant mixture exhibits a very excellent stability.

Example 44

(151) The following mixture (M-44) is prepared and investigated.

(152) TABLE-US-00051 Mixture M-44 CC-3-V 50.0 T(N, I) [ C.]: 76 CCP-V-1 6.5 n [589 nm, 20 C.]: 0.0997 CLY-3-O2 8.5 .sub. [1 kHz, 20 C.]: 7.2 COB(S)-2-O4 4.0 .sub. [1 kHz, 20 C.]: 5.0 CPY-3-O2 7.0 [1 kHz, 20 C.]: 2.1 LB(S)-3-OT 5.0 .sub.1 [mPas, 20 C.]: LB-3-T 5.0 .sub.1 [mPas, 20 C.]: 71 PPGU-3-F 0.5 K.sub.1 [pN, 20 C.]: 13.5 PUQU-3-F 13.5 K.sub.3 [pN, 20 C.]: 15.0 100.0 V.sub.0 [V, 20 C.]: 2.63 LTS bulk [h, 20 C.]: 240

(153) This mixture, mixture M-44, has a good combination of properties.

Example 45

(154) The following mixture (M-45) is prepared and investigated.

(155) TABLE-US-00052 Mixture M-45 CC-3-V 45.0 T(N, I) [ C.]: 82 CCP-V-1 18.0 n [589 nm, 20 C.]: 0.0978 PUQU-3-F 1.0 .sub.|| [1 kHz, 20 C.]: 6.9 CDUQU-3-F 8.0 .sub. [1 kHz, 20 C.]: 5.3 PPGU-3-F 0.5 [1 kHz, 20 C.]: 1.6 LB(S)-3-OT 9.5 .sub.1 [mPa s, 20 C.]: LB-3-T 7.0 .sub.1 [mPa s, 20 C.]: 71 COB(S)-2-O4 7.0 K.sub.1 [pN, 20 C.]: 14.1 Y-4O-O4 4.0 K.sub.3 [pN, 20 C.]: 14.7 100.0 V.sub.0 [V, 20 C.]: 3.16 LTS bulk [h, 20 C.]: 408 LTS bulk [h, 30 C.]: LTS bulk [h, 10 C.]: 984

(156) This mixture, mixture M-45, has a good combination of properties.

Example 46

(157) The following mixture (M-46) is prepared and investigated.

(158) TABLE-US-00053 Mixture M-46 APUQU-2-F 4.5 T(N, I) [ C.]: 85 APUQU-3-F 4.5 n [589 nm, 20 C.]: 0.1242 PGUQU-3-F 4.5 .sub.|| [1 kHz, 20 C.]: 9.8 PGUQU-4-F 4.5 .sub. [1 kHz, 20 C.]: 3.8 PGUQU-5-F 3.0 [1 kHz, 20 C.]: 6.0 PPGU-3-F 0.5 .sub.1 [mPa s, 20 C.]: CCP-V-1 4.5 .sub.1 [mPa s, 20 C.]: 70 PGP-1-2V 2.0 K.sub.1 [pN, 20 C.]: 15.2 PGP-2-2V 6.0 K.sub.3 [pN, 20 C.]: 14.6 PGP-3-2V 3.0 V.sub.0 [V, 20 C.]: 1.67 CC-3-V 43.0 LTS bulk [h, 20 C.]: 1000 CC-3-V1 6.5 LTS bulk [h, 30 C.]: 1000 PP-1-2V1 2.5 LTS bulk [h, 10 C.]: 1000 LB(S)-3-OT 6.0 LB-3-T 2.0 COB(S)-2-O4 3.0 100.0

(159) This mixture, mixture M-46, has a good combination of properties.

Example 47

(160) The following mixture (M-47) is prepared and investigated.

(161) TABLE-US-00054 Mixture M-47 CC-4-V1 23.0 T(N, I) [ C.]: 80 CC-3-V1 6.5 n [589 nm, 20 C.]: 0.1010 CC-3-2V1 5.5 .sub.|| [1 kHz, 20 C.]: 8.0 CC-3-O1 8.0 .sub. [1 kHz, 20 C.]: 5.7 CP-3-O1 5.0 [1 kHz, 20 C.]: 2.3 CCQU-2-F 9.5 .sub.1 [mPa s, 20 C.]: CCQU-3-F 6.0 .sub.1 [mPa s, 20 C.]: 107 CDUQU-3-F 3.0 K.sub.1 [pN, 20 C.]: 18.2 PGU-3-F 3.0 K.sub.3 [pN, 20 C.]: 18.5 PPGU-3-F 0.5 V.sub.0 [V, 20 C.]: 2.98 CY-3-O4 6.0 COB(S)-2-O4 7.0 LB(S)-3-OT 10.0 LB-3-T 7.0 100.0

(162) This mixture, mixture M-47, has a good combination of properties.

Example 48

(163) The following mixture (M-48) is prepared and investigated.

(164) TABLE-US-00055 Mixture M-48 CC-4-V1 23.0 T(N, I) [ C.]: 79.5 CC-3-V1 7.5 n [589 nm, 20 C.]: 0.1020 CC-2V-V2 6.5 .sub.|| [1 kHz, 20 C.]: 7.5 CC-3-01 8.0 .sub. [1 kHz, 20 C.]: 5.5 CP-3-02 7.0 [1 kHz, 20 C.]: 2.0 CCQU-2-F 5.0 .sub.1 [mPa s, 20 C.]: CCQU-3-F 8.0 .sub.1 [mPa s, 20 C.]: 121 CDUQU-3-F 3.0 K.sub.1 [pN, 20 C.]: 20.1 PGU-3-F 3.0 K.sub.3 [pN, 20 C.]: 44.4 PPGU-3-F 0.5 V.sub.0 [V, 20 C.]: 3.32 CY-3-O4 5.5 COB(S)-2-O4 7.0 LB(S)-3-OT 9.0 LB-3-T 7.0 100.0

(165) This mixture, mixture M-48, has a good combination of properties.

Example 49

(166) The following mixture (M-49) is prepared and investigated.

(167) TABLE-US-00056 Mixture M-49 CC-3-V 48.0 T(N, I) [ C.]: 79 CCP-V-1 8.0 n [589 nm, 20 C.]: 0.1003 PUQU-3-F 3.0 .sub.|| [1 kHz, 20 C.]: 8.1 CDUQU-3-F 10.0 .sub. [1 kHz, 20 C.]: 6.1 PPGU-3-F 0.5 [1 kHz, 20 C.]: 2.0 LB(S)-3-OT 8.5 .sub.1 [mPa s, 20 C.]: LB-3-T 7.0 .sub.1 [mPa s, 20 C.]: 73 COB(S)-2-O4 6.0 K.sub.1 [pN, 20 C.]: 14.1 COB(S)-V-O4 6.0 K.sub.3 [pN, 20 C.]: 13.9 Y-4O-O4 3.0 V.sub.0 [V, 20 C.]: 2.79 100.0 LTS bulk [h, 20 C.]: 1000

(168) This mixture, mixture M-49, has a good combination of properties.

Example 50

(169) The following mixture (M-50) is prepared and investigated.

(170) TABLE-US-00057 Mixture M-50 CC-3-V 49.5 T(N, I) [ C.]: 80.5 CCP-V-1 7.0 n [589 nm, 20 C.]: 0.1004 CDUQU-3-F 11.0 .sub.|| [1 kHz, 20 C.]: 8.4 PGUQU-3-F 3.0 .sub. [1 kHz, 20 C.]: 5.8 PPGU-3-F 0.5 [1 kHz, 20 C.]: 2.6 LB(S)-3-OT 8.5 .sub.1 [mPa s, 20 C.]: LB-3-T 7.0 .sub.1 [mPa s, 20 C.]: 73 COB(S)-2-O4 5.5 K.sub.1 [pN, 20 C.]: 14.1 COB(S)-V-O4 5.0 K.sub.3 [pN, 20 C.]: 13.9 Y-4O-O4 3.0 V.sub.0 [V, 20 C.]: 2.46 100.0 LTS bulk [h, 20 C.]: 1000

(171) This mixture, mixture M-50, has a good combination of properties.

Example 51

(172) The following mixture (M-51) is prepared and investigated.

(173) TABLE-US-00058 Mixture M-51 CC-3-V 50.0 T(N, I) [ C.]: 80.5 CCP-V-1 7.0 n [589 nm, 20 C.]: 0.0999 CDUQU-3-F 10.5 .sub.|| [1 kHz, 20 C.]: 8.1 PGUQU-3-F 2.5 .sub. [1 kHz, 20 C.]: 5.9 PPGU-3-F 0.5 [1 kHz, 20 C.]: 2.3 LB(S)-3-OT 8.5 .sub.1 [mPa s, 20 C.]: LB-3-T 7.0 .sub.1 [mPa s, 20 C.]: 73 COB(S)-2-O4 5.5 K.sub.1 [pN, 20 C.]: 14.1 COB(S)-V-O4 5.5 K.sub.3 [pN, 20 C.]: 14.2 Y-4O-O4 3.0 V.sub.0 [V, 20 C.]: 2.63 100.0 LTS bulk [h, 20 C.]: 1000

(174) This mixture, mixture M-51, has a good combination of properties.

Example 52

(175) The following mixture (M-52) is prepared and investigated.

(176) TABLE-US-00059 Mixture M-52 CC-3-V 50.5 T(N, I) [ C.]: 78.5 CCP-V-1 5.0 n [589 nm, 20 C.]: 0.1004 PP-1-2V1 1.0 .sub.|| [1 kHz, 20 C.]: 8.3 CDUQU-3-F 11.0 .sub. [1 kHz, 20 C.]: 5.9 PGUQU-3-F 2.5 [1 kHz, 20 C.]: 2.4 PPGU-3-F 0.5 .sub.1 [mPa s, 20 C.]: LB(S)-3-OT 8.5 .sub.1 [mPa s, 20 C.]: 72 LB-3-T 7.0 K.sub.1 [pN, 20 C.]: 14.1 COB(S)-2-O4 5.5 K.sub.3 [pN, 20 C.]: 13.6 COB(S)-V-O4 5.5 V.sub.0 [V, 20 C.]: 2.56 Y-4O-O4 3.0 LTS bulk [h, 20 C.]: 1000 100.0 LTS bulk [h, 30 C.]:

(177) This mixture, mixture M-52, has a good combination of properties.

Example 53

(178) The following mixture (M-53) is prepared and investigated.

(179) TABLE-US-00060 Mixture M-53 CC-3-V 51.0 T(N, I) [ C.]: 81 CC-3-V1 5.0 n [589 nm, 20 C.]: 0.1014 CDUQU-3-F 11.0 .sub.|| [1 kHz, 20 C.]: 8.2 COB(S)-2-O4 6.5 .sub. [1 kHz, 20 C.]: 5.6 COB(S)-V-O4 5.0 [1 kHz, 20 C.]: 2.6 LB(S)-3-OT 10.0 .sub.1 [mPa s, 20 C.]: LB-3-T 7.0 .sub.1 [mPa s, 20 C.]: 72 PGU-3-F 4.5 K.sub.1 [pN, 20 C.]: 15.1 100.0 K.sub.3 [pN, 20 C.]: 13.6 V.sub.0 [V, 20 C.]: 2.53 LTS bulk [h, 20 C.]: 72 LTS bulk [h, 30 C.]: LTS bulk [h, 10 C.]: 1000

(180) This mixture, mixture M-53, has a good combination of properties.

Example 54

(181) The following mixture (M-54) is prepared and investigated.

(182) TABLE-US-00061 Mixture M-54 CDUQU-3-F 5.0 T(N, I) [ C.]: 97.5 DGUQU-4-F 4.0 n [589 nm, 20 C.]: 0.1106 PGUQU-3-F 3.5 .sub.|| [1 kHz, 20 C.]: 10.4 PGUQU1-4-F 6.0 .sub. [1 kHz, 20 C.]: 4.6 CCP-3-OT 6.5 [1 kHz, 20 C.]: 5.8 CCP-V-1 10.0 .sub.1 [mPa s, 20 C.]: CC-3-2V1 8.0 .sub.1 [mPa s, 20 C.]: 104 CC-3-V 27.0 K.sub.1 [pN, 20 C.]: 18.3 CC-3-V1 10.0 K.sub.3 [pN, 20 C.]: 17.7 LB-3-T 7.0 V.sub.0 [V, 20 C.]: 1.87 LB(S)-3-OT 9.0 LTS bulk [h, 20 C.]: COB(S)-2-O4 4.0 LTS bulk [h, 30 C.]: 100.0 LTS bulk [h, 10 C.]:

(183) This mixture, mixture M-54, has a good combination of properties.

Example 55

(184) The following mixture (M-55) is prepared and investigated.

(185) TABLE-US-00062 Mixture M-55 CDUQU-3-F 6.0 T(N, I) [ C.]: 115.4 COB(S)-2-O4 4.0 n [589 nm, 20 C.]: CPGP-4-3 4.0 .sub.|| [1 kHz, 20 C.]: 8.5 CPGP-5-2 2.0 .sub. [1 kHz, 20 C.]: 4.4 DGUQU-4-F 4.0 [1 kHz, 20 C.]: 4.1 LB(S)-3-OT 2.0 .sub.1 [mPa s, 20 C.]: LB-3-T 2.0 .sub.1 [mPa s, 20 C.]: 144 PGUQU-3-F 1.5 K.sub.1 [pN, 20 C.]: 18.1 PGUQU-4-F 4.0 K.sub.3 [pN, 20 C.]: 17.4 PPGU-3-F 0.5 V.sub.0 [V, 20 C.]: 2.21 CCP-V-1 12.0 LTS bulk [h, 20 C.]: CCVC-3-V 5.0 LTS bulk [h, 30 C.]: 1000 CLY-3-OT 4.0 LTS bulk [h, 10 C.]: CPY-2-O2 6.0 PGIY-2-O4 3.5 PGP-2-2V 3.5 CC-3-V 30.0 CC-3-V1 6.0 100.0

(186) This mixture, mixture M-55, has a good combination of properties.

(187) To the mixture M-55 0.04% of the compound S-3 is added. The resultant mixture exhibits an excellent stability.

Example 58

(188) The following mixture (M-56) is prepared and investigated.

(189) TABLE-US-00063 Mixture M-56 CDUQU-3-F 4.0 T(N, I) [ C.]: 117.6 COB(S)-2-O4 3.0 n [589 nm, 20 C.]: 0.1217 CPGP-4-3 3.0 .sub.|| [1 kHz, 20 C.]: 8.7 CPGP-5-2 0.5 .sub. [1 kHz, 20 C.]: 4.5 DGUQU-4-F 3.0 [1 kHz, 20 C.]: 4.2 LB(S)-3-OT 3.0 .sub.1 [mPa s, 20 C.]: LB-3-T 2.0 .sub.1 [mPa s, 20 C.]: 149 PGUQU-3-F 3.0 K.sub.1 [pN, 20 C.]: 18.7 PGUQU-4-F 3.0 K.sub.3 [pN, 20 C.]: 18.9 PGUQU-5-F 3.0 V.sub.0 [V, 20 C.]: 2.22 PPGU-3-F 0.5 LTS bulk [h, 20 C.]: CCP-V-1 10.0 LTS bulk [h, 30 C.]: 1000 CCP-V2-1 8.0 LTS bulk [h, 10 C.]: CCVC-3-V 4.0 CLY-3-OT 3.0 CPY-2-O2 7.0 CPY-3-O2 5.0 PGP-2-2V 2.0 CC-3-V 29.0 CC-3-V1 4.0 100.0

(190) This mixture, mixture M-56, has a good combination of properties.

(191) To the mixture M-56 0.04% of the compound S-3 is added. The resultant mixture exhibits an excellent stability.

Example 57

(192) The following mixture (M-57) is prepared and investigated.

(193) TABLE-US-00064 Mixture M-57 CPPC-3-3 3.0 T(N, I) [ C.]: 111 CGPC-3-3 3.0 n [589 nm, 20 C.]: 0.1191 CPGP-5-2 3.0 .sub.|| [1 kHz, 20 C.]: 7.9 CPGP-5-3 3.0 .sub. [1 kHz, 20 C.]: 3.9 PGUQU-3-F 4.0 [1 kHz, 20 C.]: 4.0 PGUQU-4-F 4.5 .sub.1 [mPa s, 20 C.]: CCP-V-1 10.5 .sub.1 [mPa s, 20 C.]: 117 CCP-V2-1 4.0 K.sub.1 [pN, 20 C.]: 17.3 CCVC-3-V 4.0 K.sub.3 [pN, 20 C.]: 19.2 CCY-3-O3 6.0 V.sub.0 [V, 20 C.]: 2.20 PUQU-3-F 8.0 LTS bulk [h, 20 C.]: 1000 PP-1-2V1 3.0 LTS bulk [h, 30 C.]: CC-3-V 32.5 LTS bulk [h, 10 C.]: CC-3-V1 3.5 LB-3-T 5.0 COB(S)-2-O4 3.0 100.0

(194) This mixture, mixture M-57, has a good combination of properties.

Example 58

(195) The following mixture (M-58) is prepared and investigated.

(196) TABLE-US-00065 Mixture M-58 CPPC-3-3 3.0 T(N, I) [ C.]: 114.5 CGPC-3-3 3.0 n [589 nm, 20 C.]: 0.1184 COB(S)-2-O4 3.0 .sub.|| [1 kHz, 20 C.]: 7.9 CPGP-5-2 3.0 .sub. [1 kHz, 20 C.]: 3.8 CPGP-5-3 3.0 [1 kHz, 20 C.]: 4.1 CPGU-3-OT 3.0 .sub.1 [mPa s, 20 C.]: LB-3-T 4.0 .sub.1 [mPa s, 20 C.]: 113 PGUQU-3-F 3.0 K.sub.1 [pN, 20 C.]: 17.9 PGUQU-4-F 3.0 K.sub.3 [pN, 20 C.]: 19.6 B(S)-2O-O5 1.5 V.sub.0 [V, 20 C.]: 2.22 CCP-V-1 12.0 LTS bulk [h, 20 C.]: 1000 CCP-V2-1 5.0 LTS bulk [h, 30 C.]: 1000 CCVC-3-V 4.0 LTS bulk [h, 10 C.]: 1000 PUQU-3-F 9.0 B(S)-2O-O4 1.5 CC-3-V 31.0 CC-3-V1 8.0 100.0

(197) This mixture, mixture M-58, has a good combination of properties.

Example 59

(198) The following mixture (M-59) is prepared and investigated.

(199) TABLE-US-00066 Mixture M-59 CPPC-3-3 3.0 T(N, I) [ C.]: 113 CGPC-3-3 3.0 COB(S)(Me)-2-O4 3.0 CPGP-5-2 3.0 CPGP-5-3 3.0 CPGU-3-OT 3.0 LB-3-T 4.0 PGUQU-3-F 3.0 PGUQU-4-F 3.0 B(S)-2O-O5 1.5 CCP-V-1 12.0 CCP-V2-1 5.0 CCVC-3-V 4.0 PUQU-3-F 9.0 B(S)-2O-O4 1.5 CC-3-V 31.0 CC-3-V1 8.0 100.0

(200) This mixture, mixture M-59, has a good combination of properties. k.sub.33 elastic constant, bend deformation at 20 C. [pN], K.sub.av. average elastic constant at 20 C. [pN] defined here as K.sub.av.( 3/2 k.sub.11+k.sub.33)/3(k.sub.11+k.sub.22+k.sub.33)/3, LTS low-temperature stability of the phase, determined in test cells, VHR voltage holding ratio, VHR decrease in the voltage holding ratio, and S.sub.rel relative stability of the VHR,

(201) The following examples explain the present invention without limiting it.

(202) However, they show the person skilled in the art preferred mixture concepts with compounds preferably to be employed and the respective concentrations thereof and combinations thereof with one another. In addition, the examples illustrate the properties and property combinations that are accessible.

(203) For the present invention and in the following examples, the structures of the liquid-crystal compounds are indicated by means of acronyms, with the transformation into chemical formulae taking place in accordance with Tables A to C below. All radicals C.sub.nH.sub.2n+1, C.sub.mH.sub.2m+1 and C.sub.lH.sub.2l+1 or C.sub.nH.sub.2n, C.sub.mH.sub.2m and C.sub.lH.sub.2l are straight-chain alkyl radicals or alkylene radicals, in each case having n, m and I C atoms respectively. Preferably n, m and I are independently of each other 1, 2, 3, 4, 5, 6, or 7. Table A shows the codes for the ring elements of the nuclei of the compound, Table B lists the bridging units, and Table C lists the meanings of the symbols for the left- and right-hand end groups of the molecules. The acronyms are composed of the codes for the ring elements with optional linking groups, followed by a first hyphen and the codes for the left-hand end group, and a second hyphen and the codes for the right-hand end group. Table D shows illustrative structures of compounds together with their respective abbreviations.