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

Abstract

A liquid-crystalline medium, preferably having a nematic phase and dielectric anisotropy of 0.5 or more, which comprises one or more compounds of each of formulae T and L ##STR00001##
in which the parameters have the meanings given in the claims and in the text. The use thereof in an electro-optical display, particularly in an active-matrix display based on the IPS or FFS effect, to displays of this type which contain a liquid-crystalline medium of this type. Also, the compounds of formulae T and L and their use for the improvement of the transmission and/or response times of a liquid-crystalline medium which comprises one or more additional mesogenic compounds.

Claims

1. A liquid-crystalline medium which comprises: one or more compounds of formula T ##STR00307## in which R.sup.S1 denotes optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene or 1,3-cyclo-pentenylene, or alkenyloxy, alkoxyalkyl or optionally fluorinated alkenyl having 2 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, R.sup.S2 denotes optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene or 1,3-cyclo-pentenylene, or optionally fluorinated alkenyloxy, alkoxyalkyl or optionally fluorinated alkenyl having 2 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, or denotes, F, Cl, CN, or NCS, and Y.sup.S1 and Y.sup.S2 independently of one another, denote H or F, and wherein one or more of the aromatic rings in formula T are optionally substituted by an alkyl group; and one or more compounds of formula L ##STR00308## in which R.sup.L1 denotes optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, wherein one —CH.sub.2— group are optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, or optionally fluorinated alkenyl, or alkenyloxy or alkoxyalkyl of 2 to 7 C atoms, wherein one —CH.sub.2— group may be replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene or 1,3-cyclo-pentenylene, R.sup.L2 denotes optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, or optionally fluorinated alkenyl, optionally fluorinated alkenyloxy or alkoxyalkyl of 2 to 7 C atoms, wherein one —CH.sub.2— group may be replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene or 1,3-cyclo-pentenylene, or denotes F, Cl, CN, or NCS, and Y.sup.L1 and Y.sup.L2 independently of one another, denote H or F, and wherein the aromatic ring in formula L is optionally further substituted by an alkyl group.

2. The medium according to claim 1, which comprises one or more compounds of formula T, which are selected from compounds of formulae T-1 and T-2: ##STR00309## wherein R.sup.S1, R.sup.S2, Y.sup.S1 and Y.sup.S2 have the respective meanings given under formula T above, with the exception that R.sup.S2 in formula T-1 may not denote X.sup.S, and in which R.sup.S denotes optionally fluorinated alkyl or optionally fluorinated alkoxy; having 1 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, or alkenyloxy, alkoxyalkyl or optionally fluorinated alkenyl having 2 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, and X.sup.S denotes F, Cl, CN, NCS, fluorinated alkyl, fluorinated alkenyl, fluorinated alkoxy or fluorinated alkenyloxy, the fluorinated alkyl, fluorinated alkenyl, fluorinated alkoxy and fluorinated alkenyloxy groups having 1 to 4 C atoms, and wherein the one or more of the aromatic rings in formula T-2 are optionally be substituted by an alkyl group.

3. The medium according to claim 2, which comprises one or more compounds of formula T-1.

4. The medium according to claim 1, which comprises one or more compounds of formula L, which are selected from compounds of formulae L-1 and L-2: ##STR00310## wherein R.sup.1L, R.sup.2L, Y.sup.L1 and Y.sup.L2 have the respective meanings given under formula L in claim 1, with the exception that R.sup.L2 in formula L-1 may not denote X.sup.L, and in which R.sup.L denotes optionally fluorinated alkyl or optionally fluorinated alkoxy; having 1 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, or alkenyloxy, alkoxyalkyl or optionally fluorinated alkenyl having 2 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclopropylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, and X.sup.L denotes F, Cl, CN, NCS, fluorinated alkyl, fluorinated alkenyl, fluorinated alkoxy or fluorinated alkenyloxy, the fluorinated alkyl, fluorinated alkenyl, fluorinated alkoxy and fluorinated alkenyloxy groups having 1 to 4 C atoms, and wherein the aromatic ring in formulae L-1 and L-2 is optionally substituted by an alkyl group.

5. The medium according to claim 4, which comprises one or more compounds of formula L-2.

6. The medium according to claim 4, which comprises one or more compounds of formula L-1.

7. The medium according to claim 1, which further comprises one or more compounds selected from compounds of formulae II and III: ##STR00311## in which R.sup.2 denotes optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, or alkenyloxy, alkoxyalkyl or optionally fluorinated alkenyl having 2 to 7 C atoms, ##STR00312## on each appearance, independently of one another, denote ##STR00313## 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, R.sup.3 denotes optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, or alkenyloxy, alkoxyalkyl or optionally fluorinated alkenyl having 2 to 7 C atoms ##STR00314## on each appearance, independently of one another, are ##STR00315## 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, —O—CH.sub.2CF.sub.3, —O—CH═CF.sub.2, —O—CH═CH.sub.2 or —CF.sub.3, Z.sup.3 denotes —CH.sub.2CH.sub.2—, —CF.sub.2CF.sub.2—, —COO—, trans-CH═CH—, trans-CF═CF—, —CH.sub.2O— or a single bond, and n denotes 0, 1, 2 or 3 and wherein the one or more of the aromatic rings in formulae II and III are optionally be substituted by an alkyl group, with the condition that the compounds of formula L are excluded from formula III.

8. The medium according to claim 1, which further comprises one or more compounds of formulae IV and V: ##STR00316## in which R.sup.41 and R.sup.42, independently of one another, denote optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, or alkenyloxy, alkoxyalkyl or optionally fluorinated alkenyl having 2 to 7 C atoms, ##STR00317## independently of one another and, if ##STR00318##  occurs twice, also these independently of one another, denote ##STR00319## 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-CH═CH—, trans-CF═CF—, —CH.sub.2O—, —CF.sub.2O—, —C≡C— or a single bond, p denotes 0, 1 or 2, R.sup.51 and R.sup.52, independently of one another, have one of the meanings given for R.sup.41 and R.sup.42 ##STR00320##  to ##STR00321## if present, each, independently of one another, denote ##STR00322## Z.sup.51 to Z.sup.53 each, independently of one another, denote —CH.sub.2—CH.sub.2—, —CH.sub.2—O—, —CH═CH—, —C≡C—, —COO— or a single bond, and i and j each, independently of one another, denote 0 or 1 wherein one or more of the aromatic rings in formulae IV and V are optionally substituted by an alkyl group, and with the condition that the compounds of formula L are excluded from formula IV.

9. The medium according to claim 1, wherein the total concentration of the compounds of formula T in the medium as a whole is 3% or more to 60% or less.

10. The medium according to claim 1, which additionally comprises one or more chiral compounds.

11. The electro-optical display or electro-optical component, which comprises a liquid-crystalline medium according to claim 1.

12. The electro-optical display according to claim 11, which is based on the IPS- or FFS mode.

13. The electro-optical display according to claim 11, which contains an active-matrix addressing device.

14. The electro-optical display according to claim 11, which is a display for gaming or a mobile display.

15. A process for the preparation of the liquid-crystalline medium according to claim 1, comprising mixing one or more compounds of formula T with one or more compounds of formula L and, optionally, with one or more mesogenic compounds different from those of the formula T or formula L.

16. The medium according to claim 8, wherein the total concentration of the compounds of formula T in the medium as a whole is 3% or more to 60% or less.

17. The medium according to claim 1, wherein the total concentration of the compounds of formula T in the medium as a whole is 5% or more to 40% or less.

18. The liquid-crystalline medium according to claim 1, wherein: for R.sup.S1 and R.sup.S2 one —CH.sub.2— group is optionally replaced by cyclopropylene or 1,3-cyclopentylene, alternatively, R.sup.S2 denotes X.sup.S, where X.sup.S is F, Cl, CF.sub.3 or OCF.sub.3, for Y.sup.S1 and Y.sup.S2 at least one denotes F, the optional alkyl group substitutions for the aromatic rings in formula T are methyl, for R.sup.L1 and R.sup.L2 one —CH.sub.2— group is optionally replaced by cyclopropylene or 1,3-cyclopentylene, alternatively, R.sup.L2 denotes X.sup.L, where X.sup.L denotes F, Cl, CF.sub.3 or OCF.sub.3, for Y.sup.L1 and Y.sup.L2 at least one of them denote H, and the optional alkyl group substitutions for the aromatic ring in formula L are methyl.

19. The medium according to claim 2, wherein: for R.sup.S one —CH.sub.2— group is optionally replaced by cyclopropylene or 1,3-cyclopentylene, X.sup.S denotes F, Cl, CF.sub.3 or OCF.sub.3, and the optional alkyl group substitutions for the aromatic rings in formulae T-1 and T-2 are methyl.

20. The medium according to claim 4, wherein: R.sup.L is alkyl, alkoxy, alkenyl or alkenyloxy and the options for one —CH.sub.2— group is optionally replaced by cyclopropylene or 1,3-cyclopentylene, X.sup.L denotes F, Cl, CF.sub.3 or OCF.sub.3, and wherein at least one of the aromatic rings for L-1 or L-2 are optionally substituted by methyl.

21. The medium according to claim 1, wherein R.sup.S2 denotes optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene or 1,3-cyclo-pentenylene, or optionally fluorinated alkenyloxy, alkoxyalkyl or optionally fluorinated alkenyl having 2 to 4 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, or denotes, F, Cl, CN, or NCS, and R.sup.L2 denotes optionally fluorinated alkyl or optionally fluorinated alkoxy having 1 to 7 C atoms, wherein one —CH.sub.2— group is optionally replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene, or 1,3-cyclo-pentenylene, or optionally fluorinated alkenyl, optionally fluorinated alkenyloxy or alkoxyalkyl of 2 to 4 C atoms, wherein one —CH.sub.2— group may be replaced by cyclo-propylene, 1,3-cyclobutylene, 1,3-cyclopentylene or 1,3-cyclo-pentenylene, or denotes F, Cl, CN, or NCS.

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.

Compound Examples

(2) Compounds of formula T are e.g.

(3) ##STR00300##

(4) This compound (PGS-3-T) has a melting point of 61° C., a clearing point of 172° C., a phase range of K 61° C. SB 98° C. N 172° C. l and a Δε of +13.7.

(5) ##STR00301##

(6) This compound (PUS-3-T) has a melting point of 67° C., a clearing point of 102° C., a phase range of K 67° C. N 102° C. l and a Δε of +17.4.

(7) ##STR00302##

(8) This compound (PUS-3-F) has a melting point of 67° C., a clearing point of 102° C., a phase range of K 67° C. Sa 76° C. N 102° C. l and a Δε of +10.6.

(9) Analogously the following compounds of formula T-2-2 are prepared

(10) ##STR00303##

(11) TABLE-US-00007 R.sup.s X.sup.s Phase range Δε C.sub.3H.sub.7 F K 64 S.sub.? 81 S.sub.A 139 I  7.4 C.sub.3H.sub.7 (see above) CF.sub.3 K 61 S.sub.B 98 S.sub.A 172 I 13.7

(12) Analogously the following compounds of formula T-2-3 are prepared

(13) ##STR00304##

(14) TABLE-US-00008 R.sup.s X.sup.s Phase range Δε C.sub.3H.sub.7 (see above) F K 67 SA 76 N 102 I 10.6 C.sub.3H.sub.7 (see above) CF.sub.3 K 39 S.sub.A 137 I 17.4

Further Compound Examples

(15) ##STR00305##

Mixture Examples

(16) In the following are exemplary mixtures disclosed.

Example 1

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

(18) TABLE-US-00009 Mixture M-1 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-3-2 10.0 T(N, I) = 74.0° C.  2 CLP-V-1 11.5 n.sub.e(20° C., 589 nm) =  1.6171  3 CC-3-V 50.0 Δn(20° C., 589 nm) =  0.1222  4 CC-3-V1 4.5 ε.sub.∥(20° C., 1 kHz) =  4.5  5 PP-1-2V1 8.0 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 PGP-1-2V 4.0 Δε(20° C., 1 kHz) =  1.9  7 PGP-2-2V 5.0 ε.sub.av.(20° C., 1 kHz) =  3.2  8 PGU-3-F 3.0 γ.sub.1(20° C.) = 47 mPa .Math. s  9 PPGU-3-F 1.0 k.sub.11(20° C.) = 15.1 pN 10 DGUQU-4-F 3.0 k.sub.33(20° C.) = 14.0 pN Σ 100.0 V.sub.0(20° C.) =  2.98 V γ.sub.1/k.sub.11(20° C.) =  3.11 * Remark: * γ.sub.1/k.sub.11 [mPa .Math. s/pN] throughout this application.

(19) This mixture, mixture M-1, is characterized by low switching parameter γ.sub.1/k.sub.11(20° C.) of 3.11 mPa.Math.s/pN.

Example 2

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

(21) TABLE-US-00010 Mixture M-2 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-3-2 12.0 T(N, I) = 76.0° C.  2 CLP-3-T 6.0 n.sub.e(20° C., 589 nm) =  1.6178  3 CC-3-V 49.0 Δn(20° C., 589 nm) =  0.1253  4 CC-3-V1 6.5 ε.sub.∥(20° C., 1 kHz) =  5.2  5 CCP-V-1 4.0 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 PP-1-2V1 2.0 Δε(20° C., 1 kHz) =  2.6  7 PGP-1-2V 4.0 ε.sub.av.(20° C., 1 kHz) =  3.5  8 PGP-2-2V 8.0 γ.sub.1(20° C.) = 45 mPa .Math. s  9 PGU-2-F 3.0 k.sub.11(20° C.) = 15.6 pN 10 PGU-3-F 2.0 k.sub.33(20° C.) = 13.4 pN 11 PPGU-3-F 1.0 V.sub.0(20° C.) =  2.61 V 12 PGUQU-4-F 2.5 γ.sub.1/k.sub.11(20° C.) =  2.88 * Σ 100.0

(22) This mixture, mixture M-2, shows short response times.

Example 3

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

(24) TABLE-US-00011 Mixture M-3 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-3-2 10.0 T(N, I) = 75.5° C.  2 CLP-3-T 4.0 n.sub.e(20° C., 589 nm) =  1.6181  3 CLP-V-1 3.0 Δn(20° C., 589 nm) =  0.1239  4 CC-3-V 49.0 ε.sub.∥(20° C., 1 kHz) =  4.7  5 CC-3-V1 4.0 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 CCP-V-1 5.5 Δε(20° C., 1 kHz) =  2.1  7 PP-1-2V1 5.0 ε.sub.av.(20° C., 1 kHz) =  3.3  8 PGP-1-2V 4.0 γ.sub.1(20° C.) = 45 mPa .Math. s  9 PGP-2-2V 8.0 k.sub.11(20° C.) = 15.4 pN 10 PGU-2-F 2.0 k.sub.33(20° C.) = 13.7 pN 11 PGU-3-F 3.0 V.sub.0(20° C.) =  2.83 V 12 PPGU-3-F 0.5 γ.sub.1/k.sub.11(20° C.) =  2.92 * 13 PGUQU-4-F 4.0 Σ 100.0

(25) This mixture, mixture M-3, shows short response times.

Example 4

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

(27) TABLE-US-00012 Mixture M-4 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-3-2 7.0 T(N, I) = 75.5° C.  2 CLP-3-T 4.0 n.sub.e(20° C., 589 nm) =  1.6156  3 CLP-V-1 4.0 Δn(20° C., 589 nm) =  0.1244  4 CC-3-V 49.0 ε.sub.∥(20° C., 1 kHz) =  4.7  5 CC-3-V1 7.0 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 CCP-V-1 6.5 Δε(20° C., 1 kHz) =  2.1  7 PP-1-2V1 4.5 ε.sub.av.(20° C., 1 kHz) =  3.3  8 PGP-1-2V 2.0 γ.sub.1(20° C.) = 44 mPa .Math. s  9 PGP-2-2V 8.0 k.sub.11(20° C.) = 15.1 pN 10 PGU-2-F 2.0 k.sub.33(20° C.) = 14.1 pN 11 PGU-3-F 3.5 V.sub.0(20° C.) =  2.81 V 12 PPGU-3-F 0.5 γ.sub.1/k.sub.11(20° C.) =  2.91 * 13 APUQU-2-F 2.0 Σ 100.0

(28) This mixture, mixture M-4, shows short response times.

Example 5

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

(30) TABLE-US-00013 Mixture M-5 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-2-2 6.0 T(N, I) = 74.5° C.  2 PUS-3-2 9.0 n.sub.e(20° C., 589 nm) =  1.6186  3 CLP-3-T 6.0 Δn(20° C., 589 nm) =  0.1255  4 CC-3-V 49.0 ε.sub.∥(20° C., 1 kHz) =  5.2  5 CC-3-V1 6.5 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 CCP-V-1 4.0 Δε(20° C., 1 kHz) =  2.6  7 PP-1-2V1 2.0 ε.sub.av.(20° C., 1 kHz) =  3.5  8 PGP-1-2V 3.0 γ.sub.1(20° C.) = 43 mPa .Math. s  9 PGP-2-2V 6.0 k.sub.11(20° C.) = 15.6 pN 10 PGU-2-F 2.0 k.sub.33(20° C.) = 13.0 pN 11 PGU-3-F 3.0 V.sub.0(20° C.) =  2.60 V 12 PPGU-3-F 1.0 γ.sub.1/k.sub.11(20° C.) =  2.76 * 13 PGUQU-4-F 2.5 Σ 100.0

(31) This mixture, mixture M-5, shows short response times.

Example 6

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

(33) TABLE-US-00014 Mixture M-6 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-3-2 10.0 T(N, I) = 78.0° C.  2 CLP-3-T 6.5 n.sub.e(20° C., 589 nm) =  1.6193  3 CLP-V-1 2.0 Δn(20° C., 589 nm) =  0.1272  4 CC-3-V 48.0 ε.sub.∥(20° C., 1 kHz) =  6.3  5 CC-3-V1 6.5 ε.sub.⊥(20° C., 1 kHz) =  2.7  6 CCP-V-1 2.0 Δε(20° C., 1 kHz) =  3.5  7 PGP-1-2V 4.0 ε.sub.av.(20° C., 1 kHz) =  3.9  8 PGP-2-2V 8.0 γ.sub.1(20° C.) = 47 mPa .Math. s  9 PGU-2-F 4.0 k.sub.11(20° C.) = 16.0 pN 10 PGU-3-F 4.0 k.sub.33(20° C.) = 13.5 pN 11 PPGU-3-F 1.0 V.sub.0(20° C.) =  2.24 V 12 PGUQU-3-F 1.5 γ.sub.1/k.sub.11(20° C.) =  2.94 * 13 PGUQU-4-F 2.5° Σ 100.0

(34) This mixture, mixture M-6, shows short response times.

Example 7

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

(36) TABLE-US-00015 Mixture M-7 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-3-2 10.0 T(N, I) = 75.0° C.  2 CLP-V-1 3.0 n.sub.e(20° C., 589 nm) =  1.6186  3 CC-3-V 49.5 Δn(20° C., 589 nm) =  0.1242  4 CC-3-V1 8.0 ε.sub.∥(20° C., 1 kHz) =  4.6  5 PP-1-2V1 4.0 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 CPP-3-2 5.0 Δε(20° C., 1 kHz) =  2.0  7 PGP-1-2V 3.0 ε.sub.av.(20° C., 1 kHz) =  3.3 ???  8 PGP-2-2V 9.0 γ.sub.1(20° C.) = 47 mPa .Math. s  9 PGU-2-F 5.0 k.sub.11(20° C.) = 14.8 pN 10 DPGU-4-F 3.5° k.sub.33(20° C.) = 13.1 pN Σ 100.0 V.sub.0(20° C.) =  2.89 V γ.sub.1/k.sub.11(20° C.) =  2.91 *

(37) This mixture, mixture M-7, shows short response times.

Example 8

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

(39) TABLE-US-00016 Mixture M-8 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-2-2 7.0 T(N, I) = 76.0° C.  2 PUS-3-2 11.0 n.sub.e(20° C., 589 nm) =  1.6210  3 CLP-3-T 5.0 Δn(20° C., 589 nm) =  0.1272  4 CC-3-V 48.5 ε.sub.∥(20° C., 1 kHz) =  5.1  5 CC-3-V1 7.5 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 CCP-V-1 5.0 Δε(20° C., 1 kHz) =  2.5  7 PGP-1-2V 2.0 ε.sub.av.(20° C., 1 kHz) =  3.4  8 PGP-2-2V 5.5 k.sub.11(20° C.) = 15.8 pN  9 PGU-2-F 3.0 k.sub.33(20° C.) = 13.1 pN 10 PGU-3-F 2.0 V.sub.0(20° C.) =  2.64 V 11 PPGU-3-F 1.0 * 12 PGUQU-4-F 2.5 Σ 100.0

(40) This mixture, mixture M-8, is characterized by good properties, like those of the previous examples.

Example 9

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

(42) TABLE-US-00017 Mixture M-9 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-3-2 10.0 T(N, I) = 77.0° C.  2 PUS-4-5 15.0 n.sub.e(20° C., 589 nm) =  1.6348  3 PUS-6-5 15.0 Δn(20° C., 589 nm) =  0.1408  4 CLP-3-T 6.0 ε.sub.∥(20° C., 1 kHz) =  6.0  5 CC-3-V 41.0 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 CC-3-V1 2.0 Δε(20° C., 1 kHz) =  3.4  7 PPGU-3-F 0.5 ε.sub.av.(20° C., 1 kHz) =  3.8  8 CCQU-3-F 5.0 k.sub.11(20° C.) = 16.6 pN  9 APUQU-3-F 1.5 k.sub.33(20° C.) = 11.6 pN 10 DGUQU-4-F 4.0 V.sub.0(20° C.) =  2.34 V Σ 100.0

(43) This mixture, mixture M-9, is characterized by good properties, like those of the previous examples.

Example 10

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

(45) TABLE-US-00018 Mixture M-10 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-4-5 15.0 T(N, I) = 76.0° C.  2 CLP-3-T 5.0 n.sub.e(20° C., 589 nm) =  1.6349  3 CLP-V-1 4.0 Δn(20° C., 589 nm) =  0.1379  4 CC-3-V 44.5 ε.sub.∥(20° C., 1 kHz) =  6.2  5 CC-3-V1 3.0 ε.sub.⊥(20° C., 1 kHz) =  2.8  6 PP-1-2V1 3.0 Δε(20° C., 1 kHz) =  3.4  7 PGP-1-2V 3.5 ε.sub.av.(20° C., 1 kHz) =  3.9  8 PGP-2-2V 9.0 k.sub.11(20° C.) = 16.0 pN  9 PGU-2-F 6.0 k.sub.33(20° C.) = 12.5 pN 10 PGU-3-F 3.0 V.sub.0(20° C.) =  2.28 V 11 PPGU-3-F 1.0 12 PGUQU-4-F 3.0 Σ 100.0

(46) This mixture, mixture M-10, is characterized by good properties, like those of the previous examples.

Example 11

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

(48) TABLE-US-00019 Mixture M-11 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-2-2 15.5 T(N, I) = 73.4° C.  2 CLP-3-T 7.0 n.sub.e(20° C., 589 nm) =  1.6274  3 CC-3-V 36.5 Δn(20° C., 589 nm) =  0.1333  4 CC-3-V1 11.0 ε.sub.∥(20° C., 1 kHz) =  5.6  5 CC-3-2V1 5.0 ε.sub.⊥(20° C., 1 kHz) =  2.6  6 PP-1-2V1 10.0 Δε(20° C., 1 kHz) =  2.9  7 PGP-1-2V 5.0 ε.sub.av.(20° C., 1 kHz) =  3.6  8 PGP-2-2V 2.5 k.sub.11(20° C.) = 16.9 pN  9 PPGU-3-F 1.0 k.sub.33(20° C.) = 14.0 pN 10 DGUQU-4-F 2.0 V.sub.0(20° C.) =  2.52 V 11 PGUQU-3-F 4.5 Σ 100.0

(49) This mixture, mixture M-11, is characterized by good properties, like those of the previous examples.

Example 12

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

(51) TABLE-US-00020 Mixture M-12 Composition Compound Concentration No. Abbreviation / % by weight Physical properties  1 PUS-2-2 10.0 T(N, I) = 73.6° C.  2 PUS-3-2 4.5 n.sub.e(20° C., 589 nm) =  1.6283  3 CLP-3-T 7.0 Δn(20° C., 589 nm) =  0.1337  4 CC-3-V 37.5 ε.sub.∥(20° C., 1 kHz) =  5.6  5 CC-3-V1 11.0 ε.sub.⊥(20° C., 1 kHz) =  2.7  6 CC-3-2V1 3.0 Δε(20° C., 1 kHz) =  2.9  7 PP-1-2V1 10.0 ε.sub.av.(20° C., 1 kHz) =  3.6  8 PGP-1-2V 3.5 k.sub.11(20° C.) = 16.7 pN  9 PGP-2-2V 6.5 k.sub.33(20° C.) = 13.9 pN 10 PPGU-3-F 1.0 V.sub.0(20° C.) =  2.51 V 11 DGUQU-4-F 4.0 12 PGUQU-3-F 2.0 Σ 100.0

(52) This mixture, mixture M-12, is characterized by good properties, like those of the previous examples.

Example 13

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

(54) TABLE-US-00021 Mixture M-13 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-2-2 5.0 T(N, I) = 73.4° C. 2 PUS-3-2 12.0 n.sub.e(20° C., 589 nm) =  1.6272 3 CLP-3-T 7.0 Δn(20° C., 589 nm) =  0.1334 4 CC-3-V 37.0 ε.sub.∥(20° C., 1 kHz) =  5.5 5 CC-3-V1 11.0 ε.sub.⊥(20° C., 1 kHz) =  2.7 6 CC-3-2V1 4.0 Δε(20° C., 1 kHz) =  2.8 7 PP-1-2V1 10.0 ε.sub.av.(20° C., 1 kHz) =  3.6 8 PGP-1-2V 2.5 k.sub.11(20° C.) = 17.0 pN 9 PGP-2-2V 4.5 k.sub.33(20° C.) = 14.0 pN 10 PPGU-3-F 1.0 V.sub.0(20° C.) =  2.54 V 11 DGUQU-4-F 4.0 12 PGUQU-3-F 2.0 Σ 100.0

(55) This mixture, mixture M-13, is characterized by good properties, like those of the previous examples.

Example 14

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

(57) TABLE-US-00022 Mixture M-14 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-2-2 9.5 T(N, I) = 73.0° C. 2 PUS-3-2 5.0 n.sub.e(20° C., 589 nm) =  1.6278 3 PUS-4-5 5.0 Δn(20° C., 589 nm) =  0.1338 4 CLP-3-T 7.0 ε.sub.∥(20° C., 1 kHz) =  5.4 5 CC-3-V 35.5 ε.sub.⊥(20° C., 1 kHz) =  2.7 6 CC-3-V1 11.0 Δε(20° C., 1 kHz) =  2.7 7 CC-3-2V1 5.0 ε.sub.av.(20° C., 1 kHz) =  3.6 8 PP-1-2V1 10.0 k.sub.11(20° C.) = 16.9 pN 9 PGP-1-2V 5.5 k.sub.33(20° C.) = 13.8 pN 10 PPGU-3-F 1.0 V.sub.0(20° C.) =  2.58 V 11 DGUQU-4-F 4.0 12 PGUQU-3-F 1.5 Σ 100.0

(58) This mixture, mixture M-14, is characterized by good properties, like those of the previous examples.

Example 15

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

(60) TABLE-US-00023 Mixture M-15 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-2-2 17.0 T(N, I) = 73.5° C. 2 CLP-3-T 7.0 n.sub.e(20° C., 589 nm) =  1.6293 3 CC-3-V 35.5 Δn(20° C., 589 nm) =  0.1346 4 CC-3-V1 11.0 ε.sub.∥(20° C., 1 kHz) =  5.5 5 CC-3-2V1 10.0 ε.sub.⊥(20° C., 1 kHz) =  2.6 6 PP-1-2V1 7.0 Δε(20° C., 1 kHz) =  2.9 7 PGP-1-2V 7.0 ε.sub.av.(20° C., 1 kHz) =  3.6 8 PPGU-3-F 1.0 k.sub.11(20° C.) = 17.0 pN 9 DGUQU-4-F 3.5 k.sub.33(20° C.) = 14.0 pN 10 PGUQU-3-F 2.5 V.sub.0(20° C.) =  2.55 V Σ 100.0

(61) This mixture, mixture M-15, is characterized by good properties, like those of the previous examples.

Example 16

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

(63) TABLE-US-00024 Mixture M-16 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-2-2 20.0 T(N, I) = 73.7° C. 2 CLP-3-T 7.0 n.sub.e(20° C., 589 nm) =  1.6292 3 CC-3-V 35.5 Δn(20° C., 589 nm) =  0.1348 4 CC-3-V1 11.0 ε.sub.∥(20° C., 1 kHz) =  5.5 5 CC-3-2V1 6.0 ε.sub.⊥(20° C., 1 kHz) =  2.6 6 PP-1-2V1 8.5 Δε(20° C., 1 kHz) =  2.8 7 PGP-1-2V 5.5 ε.sub.av.(20° C., 1 kHz) =  3.6 8 PPGU-3-F 1.0 k.sub.11(20° C.) = 17.1 pN 9 DGUQU-4-F 4.0 k.sub.33(20° C.) = 13.9 pN 10 PGUQU-3-F 1.5 V.sub.0(20° C.) =  2.59 V Σ 100.0

(64) This mixture, mixture M-16, is characterized by good properties, like those of the previous examples.

Example 17

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

(66) TABLE-US-00025 Mixture M-17 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 11.0 T(N, I) = 71.5° C. 2 CLP-3-T 3.0 n.sub.e(20° C., 589 nm) =  1.6167 3 CLP-V-1 8.0 Δn(20° C., 589 nm) =  0.1227 4 CC-3-V 49.0 ε.sub.∥(20° C., 1 kHz) =  5.0 5 CC-3-V1 5.0 ε.sub.⊥(20° C., 1 kHz) =  2.5 6 PP-1-2V1 11.0 Δε(20° C., 1 kHz) =  2.5 7 PGP-2-2V 5.0 ε.sub.av.(20° C., 1 kHz)  3.4 8 PPGU-3-F 1.0 k.sub.11(20° C.) = 15.1 pN 9 PGUQU-3-F 7.0 k.sub.33(20° C.) = 13.7 pN Σ 100.0 V.sub.0(20° C.) =  2.59 V

(67) This mixture, mixture M-17, is characterized by good properties, like those of the previous examples.

Example 18

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

(69) TABLE-US-00026 Mixture M-18 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-2-2 25.0 T(N, I) = 71.0° C. 2 CLP-V-1 6.0 n.sub.e(20° C., 589 nm) =  1.6159 3 CC-3-V 52.0 Δn(20° C., 589 nm) =  0.1228 4 CC-3-V1 10.0 ε.sub.∥(20° C., 1 kHz) =  4.5 5 PPGU-3-F 1.0 ε.sub.⊥(20° C., 1 kHz) =  2.5 6 PGUQU-3-F 3.0 Δε(20° C., 1 kHz) =  2.1 7 PGUQU-4-F 3.0 ε.sub.av.(20° C., 1 kHz)  3.2 Σ 100.0 k.sub.11(20° C.) = 14.4 pN k.sub.33(20° C.) = 12.4 pN V.sub.0(20° C.) =  2.78 V

(70) This mixture, mixture M-18, is characterized by good properties, like those of the previous examples.

Example 19

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

(72) TABLE-US-00027 Mixture M-19 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 10.0 T(N, I) = 104.1° C. 2 CLP-3-T 6.0 n.sub.e(20° C., 589 nm) =  1.6026 3 CC-3-V 28.0 Δn(20° C., 589 nm) =  0.1142 4 CC-3-V1 9.0 ε.sub.∥(20° C., 1 kHz) =  7.3 5 CCP-V-1 14.0 ε.sub.⊥(20° C., 1 kHz) =  2.8 6 CCP-V2-1 1.5 Δε(20° C., 1 kHz) =  4.6 7 CCVC-3-V 6.0 ε.sub.av.(20° C., 1 kHz) =  4.3 8 PP-1-2V1 3.0 γ.sub.1(20° C.) =  83 mPa .Math. s 9 PGP-2-2V 2.0 k.sub.11(20° C.) =  18.6 pN 10 CCG-V-F 4.0 k.sub.33(20° C.) =  18.6 pN 1 CCP-3-0T 5.0 V.sub.0(20° C.) =  2.13 V 12 DPGU-4-F 2.0 γ.sub.1/k.sub.11(20° C.) =  4.46 * 13 CDUQU-3-F 3.0 14 DGUQU-4-F 4.0 15 PGUQU-4-F 2.5 Σ 100.0

(73) This mixture, mixture M-19, is characterized by rather short response times and shows a high clearing point.

Example 20

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

(75) TABLE-US-00028 Mixture M-20 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 10.0 T(N, I) = 75.0° C. 2 CLP-3-T 7.0 n.sub.e(20° C., 589 nm) =  1.6288 3 CC-3-V 47.0 Δn(20° C., 589 nm) =  0.1343 4 CC-3-V1 4.5 ε.sub.∥(20° C., 1 kHz) =  5.7 5 PP-1-2V1 7.5 ε.sub.⊥(20° C., 1 kHz) =  2.7 6 PGP-1-2V 5.5 Δε(20° C., 1 kHz) =  3.0 7 PGP-2-2V 10.0 ε.sub.av.(20° C., 1 kHz) =  3.7 8 PGU-2-F 1.0 k.sub.11(20° C.) = 15.8 pN 9 PPGU-3-F 1.0 k.sub.33(20° C.) = 13.5 pN 10 PGUQU-3-F 4.0 V.sub.0(20° C.) =  2.43 V 11 PGUQU-4-F 2.5 Σ 100.0

(76) This mixture, mixture M-20, is characterized by good properties, like those of the previous examples.

Example 21

(77) 500 ppm of the compound of the formula

(78) ##STR00306##
wherein the two O atoms bonded to the N atoms indicate radicals, are added to the mixture M-20 of the previous example. The resultant mixture, mixture M-21, is investigated. It is exhibiting good stability against exposure to illumination by light, while, at the same time, the other physical properties are maintained.

Example 22

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

(80) TABLE-US-00029 Mixture M-22 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 15.0 T(N, I) = 74.2° C. 2 CLP-3-T 6.5 n.sub.e(20° C., 589 nm) =  1.6290 3 CC-3-V 40.0 Δn(20° C., 589 nm) =  0.1350 4 CC-3-V1 11.0 ε.sub.∥(20° C., 1 kHz) =  6.1 5 PP-1-2V1 8.5 ε.sub.⊥(20° C., 1 kHz) =  2.9 6 PGP-2-2V 10.5 Δε(20° C., 1 kHz) =  3.3 7 PPGU-3-F 1.0 ε.sub.av.(20° C., 1 kHz) =  4.0 8 DGUQU-4-F 4.0 k.sub.11(20° C.) = 16.3 pN 9 PGUQU-4-F 3.5 k.sub.33(20° C.) = 13.2 pN Σ 100.0 V.sub.0(20° C.) =  2.36 V

(81) This mixture, mixture M-22, is characterized by good properties, like those of the previous examples.

Example 23

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

(83) TABLE-US-00030 Mixture M-23 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 15.0 T(N, I) = 74.6° C. 2 CLP-3-T 7.0 n.sub.e(20° C., 589 nm) =  1.6289 3 CC-3-V 40.0 Δn(20° C., 589 nm) =  0.1349 4 CC-3-V1 11.0 ε.sub.∥(20° C., 1 kHz) =  5.9 5 PP-1-2V1 8.5 ε.sub.⊥(20° C., 1 kHz) =  2.8 6 PGP-2-2V 11.0 Δε(20° C., 1 kHz) =  3.1 7 PPGU-3-F 1.0 ε.sub.av.(20° C., 1 kHz) =  3.8 8 DGUQU-4-F 4.0 k.sub.11(20° C.) = 16.6 pN 9 PGUQU-3-F 2.5 k.sub.33(20° C.) = 13.1 pN Σ 100.0 V.sub.0(20° C.) =  2.46 V

(84) This mixture, mixture M-23, is characterized by good properties, like those of the previous examples and shows high elastic constant(s) (i.e. k.sub.11).

Example 24

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

(86) TABLE-US-00031 Mixture M-24 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-T 15.0 T(N, I) = 77.5° C. 2 CLP-V-1 10.0 n.sub.e(20° C., 589 nm) =  1.6081 3 CLP-3-T 4.0 Δn(20° C., 589 nm) =  0.1181 4 CC-3-V 51.0 ε.sub.∥(20° C., 1 kHz) =  5.7 5 CC-3-V1 6.0 ε.sub.⊥(20° C., 1 kHz) =  2.7 6 PP-1-2V1 2.0 Δε(20° C., 1 kHz) =  3.0 7 PGP-1-2V 3.0 ε.sub.av.(20° C., 1 kHz) =  3.7 8 PGP-2-2V 8.0 k.sub.11(20° C.) = 17.1 pN 9 PPGU-3-F 1.0 k.sub.33(20° C.) = 14.4 pN Σ 100.0 V.sub.0(20° C.) =  2.51 V

(87) This mixture, mixture M-24, is characterized by good properties, like those of the previous examples and shows high elastic constant(s) (i.e. k.sub.11).

Example 25

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

(89) TABLE-US-00032 Mixture M-25 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-T 4.0 T(N, I) = 74.0° C. 2 CLP-V-1 10.0 n.sub.e(20° C., 589 nm) =  1.6212 3 CC-3-V 49.0 Δn(20° C., 589 nm) =  0.1248 4 CC-3-V1 4.0 ε.sub.∥(20° C., 1 kHz) =  4.6 5 PP-1-2V1 12.0 ε.sub.⊥(20° C., 1 kHz) =  2.6 6 PGP-1-2V 8.0 Δε(20° C., 1 kHz) =  1.6 7 PGP-2-2V 10.0 ε.sub.av.(20° C., 1 kHz) =  3.1 8 PPGU-3-F 1.0 k.sub.11(20° C.) = 15.1 pN 9 DGUQU-4-F 2.0 k.sub.33(20° C.) = 14.5 pN Σ 100.0 V.sub.0(20° C.) =  3.20 V

(90) This mixture, mixture M-25, is characterized by good properties, like those of the previous examples.

Example 26

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

(92) TABLE-US-00033 Mixture M-26 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-T 9.0 T(N, I) = 76.5° C. 2 CLP-V-1 12.0 n.sub.e(20° C., 589 nm) =  1.6212 3 CC-3-V 48.0 Δn(20° C., 589 nm) =  0.1235 4 CC-3-V1 7.0 ε.sub.∥(20° C., 1 kHz) =  4.4 5 PP-1-2V1 12.0 ε.sub.⊥(20° C., 1 kHz) =  2.6 6 PGP-1-2V 7.0 Δε(20° C., 1 kHz) =  1.8 7 PGP-2-2V 8.0 ε.sub.av.(20° C., 1 kHz) =  3.2 8 PPGU-3-F 1.0 k.sub.11(20° C.) = 16.1 pN Σ 100.0 k.sub.33(20° C.) = 14.7 pN V.sub.0(20° C.) =  3.14 V

(93) This mixture, mixture M-26, is characterized by good properties, like those of the previous examples.

Example 27

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

(95) TABLE-US-00034 Mixture M-27 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-2-3 5.0 T(N, I) = 74.5° C. 2 PUS-3-2 5.0 n.sub.e(20° C., 589 nm) =  1.6157 3 PUS-3-T 8.0 Δn(20° C., 589 nm) =  0.1222 4 CLP-V-1 15.0 ε.sub.∥(20° C., 1 kHz) =  4.2 5 CC-3-V 49.0 ε.sub.⊥(20° C., 1 kHz) =  2.5 6 CC-3-V1 7.0 Δε(20° C., 1 kHz) =  1.8 7 PP-1-2V1 5.0 ε.sub.av.(20° C., 1 kHz) =  3.1 8 PPGU-3-F 1.0 k.sub.11(20° C.) = 17.1 pN Σ 100.0 k.sub.33(20° C.) = 14.3 pN V.sub.0(20° C.) =  3.28 V

(96) This mixture, mixture M-27, is characterized by good properties, like those of the previous examples and shows high elastic constant(s) (i.e. k.sub.11).

Example 28

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

(98) TABLE-US-00035 Mixture M-28 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 6.0 T(N, I) = t.b.d. ° C. 2 PUS-3-T 4.0 3 CLP-V-1 8.0 4 CLP-3-T 4.0 5 CC-3-V 51.0 6 CC-3-V1 7.0 7 PP-1-2V1 8.0 8 PGP-2-2V 8.0 9 PPGU-3-F 0.5 10 PGUQU-3-F 3.5 Σ 100.0 Remark: t.b.d. to be determined.

(99) This mixture, mixture M-28, is characterized by good properties, like those of the previous examples.

Example 29

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

(101) TABLE-US-00036 Mixture M-29 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PGS-3-T 5.0 T(N, I) = t.b.d. ° C. 2 PUS-3-2 12.0 3 CLP-3-T 7.0 4 CC-3-V 37.0 5 CC-3-V1 11.0 6 CC-3-2V1 4.0 7 PP-1-2V1 10.0 8 PGP-1-2V 2.5 9 PGP-2-2V 4.5 10 PPGU-3-F 1.0 11 DGUQU-4-F 4.0 12 PGUQU-3-F 2.0 Σ 100.0 Remark: t.b.d. to be determined.

(102) This mixture, mixture M-29, is characterized by good properties, like those of the previous examples.

Example 30

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

(104) TABLE-US-00037 Mixture M-30 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PGS-2-2 8.0 T(N, I) = t.b.d. ° C. 2 PGS-3-2 9.0 3 CLP-3-T 7.0 4 CC-3-V 37.0 5 CC-3-V1 11.0 6 CC-3-2V1 4.0 7 PP-1-2V1 10.0 8 PGP-1-2V 2.5 9 PGP-2-2V 4.5 10 PPGU-3-F 1.0 11 DGUQU-4-F 4.0 12 PGUQU-3-F 2.0 Σ 100.0 Remark: t.b.d. to be determined.

(105) This mixture, mixture M-30, is characterized by good properties, like those of the previous examples.

Example 31

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

(107) TABLE-US-00038 Mixture M-31 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-2-2 10.0 T(N, I) = 76.9° C. 2 PUS-3-2 20.0 Δn(20° C., 589 nm) =  0.1581 3 CLP-3-T 5.0 n.sub.e(20° C., 589 nm) =  1.6589 4 CC-3-V 34.5 n.sub.o(20° C., 589 nm) =  1.5008 5 CC-3-V1 3.0 ε.sub.∥(20° C., 1 kHz) =  5.6 6 CC-3-5 5.5 ε.sub.⊥(20° C., 1 kHz) =  2.7 7 PP-1-2V1 7.0 Δε(20° C., 1 kHz) =  3.0 8 PGP-1-2V 4.0 ε.sub.av.(20° C., 1 kHz) =  3.7 9 PGP-2-2V 4.5 k.sub.11(20° C.) = 12.7 pN 10 DPGU-4-F 2.0 k.sub.33(20° C.) =  2.61 pN 11 DGUQU-4-F 2.0 V.sub.0(20° C.) =  2.61 V Σ 100.0

(108) This mixture, mixture M-31, is characterized by good properties, like those of the previous examples.

Example 32

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

(110) TABLE-US-00039 Mixture M-32 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 10.0 T(N, I) = 80.9° C. 2 CLP-3-T 8.5 Δn(20° C., 589 nm) =  0.1350 3 CC-3-V 43.0 n.sub.e(20° C., 589 nm) =  1.6290 4 CC-3-V1 8.0 n.sub.o(20° C., 589 nm) =  1.4940 5 PP-1-2V1 7.5 ε.sub.∥(20° C., 1 kHz) =  5.7 6 PGP-1-2V 7.5 ε.sub.⊥(20° C., 1 kHz) =  2.7 7 PGP-2-2V 8.0 Δε(20° C., 1 kHz) =  3.0 8 DLGU-3-F 1.5 ε.sub.av.(20° C., 1 kHz) =  3.7 9 PPGU-3-F 1.0 k.sub.11(20° C.) = 16.3 pN 10 PGUQU-3-F 1.5 k.sub.33(20° C.) = 13.8 pN Σ 100.0 V.sub.0(20° C.) =  2.6 V γ.sub.1(20° C.) = 55 mPa s

(111) This mixture, mixture M-32, is characterized by good properties, like those of the previous examples.

Example 33

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

(113) TABLE-US-00040 Mixture M-33 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 25.0 T(N, I) = 86.1° C. 2 CLP-3-T 3.0 Δn(20° C., 589 nm) =  0.1538 3 CLP-V-1 3.0 n.sub.e(20° C., 589 nm) =  1.6530 4 CC-3-V 30.0 n.sub.o(20° C., 589 nm) =  1.4992 5 CC-3-V1 8.0 ε.sub.∥(20° C., 1 kHz) =  7.4 6 CCP-V-1 5.0 ε.sub.⊥(20° C., 1 kHz) =  2.8 7 CCP-V2-1 4.0 Δε(20° C., 1 kHz) =  4.6 8 PP-1-2V1 5.5 ε.sub.av.(20° C., 1 kHz) =  4.3 9 PGP-2-2V 3.0 k.sub.11(20° C.) = 18.9 pN 10 PGU-30-F 3.0 k.sub.33(20° C.) = 15.7 pN 11 PPGU-3-F 0.5 V.sub.0(20° C.) =  2.13 V 12 DGUQU-4-F 5.0 γ.sub.1(20° C.) = 69 mPa s 13 PGUQU-3-F 5.0 Σ 100.0

(114) This mixture, mixture M-33, is characterized good properties, like those of the previous examples.

Example 34

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

(116) TABLE-US-00041 Mixture M-34 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 19.0 T(N, I) = 82.8° C. 2 CLP-3-T 2.0 Δn(20° C., 589 nm) =  0.1545 3 CLP-V-1 2.5 n.sub.e(20° C., 589 nm) =  1.6564 4 CC-3-V 9.0 n.sub.o(20° C., 589 nm) =  1.5019 5 CC-3-V1 9.0 ε.sub.∥(20° C., 1 kHz) =  6.8 6 CC-3-5 5.0 ε.sub.⊥(20° C., 1 kHz) =  2.9 7 CCP-V-1 4.0 Δε(20° C., 1 kHz) =  3.9 8 CCP-V2-1 5.0 ε.sub.av.(20° C., 1 kHz) =  4.2 9 PP-1-2V1 8.5 k.sub.11(20° C.) = 18.8 pN 10 PGP-1-2V 6.0 k.sub.33(20° C.) = 16.2 pN 11 PGP-2-2V 7.5 V.sub.0(20° C.) =  2.31 V 12 PPGU-3-F 1.0 γ.sub.1(20° C.) = 65 mPa s 13 PZU-V2-N 6.0 Σ 100.0

(117) This mixture, mixture M-34, is characterized by good properties, like those of the previous examples.

Example 35

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

(119) TABLE-US-00042 Mixture M-35 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 13.0 T(N, I) = 74.9° C. 2 CLP-3-T 2.0 Δn(20° C., 589 nm) =  0.1345 3 CC-3-V 37.0 n.sub.e(20° C., 589 nm) =  1.6320 4 CC-3-V1 8.0 n.sub.o(20° C., 589 nm) =  1.4975 5 CCP-V-1 8.5 ε.sub.∥(20° C., 1 kHz) =  5.7 6 CCP-V2-1 3.0 ε.sub.⊥(20° C., 1 kHz) =  2.7 7 PP-1-2V1 11.0 Δε(20° C., 1 kHz) =  3.0 8 PGP-2-2V 10.0 ε.sub.av.(20° C., 1 kHz) =  3.7 9 PPGU-3-F 1.0 k.sub.11(20° C.) = 15.2 pN 10 PZU-V2-N 3.0 k.sub.33(20° C.) = 14.0 pN 11 PGUQU-3-F 3.5 V.sub.0(20° C.) =  2.36 V Σ 100.0 γ.sub.1(20° C.) = 53 mPa s

(120) This mixture, mixture M-35, is characterized by good properties, like those of the previous examples.

Example 36

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

(122) TABLE-US-00043 Mixture M-36 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 20.0 T(N, I) = 82.3° C. 2 PUS-3-V 5.0 Δn(20° C., 589 nm) =  0.1554 3 CLP-3-T 3.0 n.sub.e(20° C., 589 nm) =  1.6565 4 CLP-V-1 3.0 n.sub.o(20° C., 589 nm) =  1.5011 5 CC-3-V 27.5 ε.sub.∥(20° C., 1 kHz) =  6.6 6 CC-3-V1 9.0 ε.sub.⊥(20° C., 1 kHz) =  2.7 7 CCP-V-1 5.0 Δε(20° C., 1 kHz) =  3.9 8 CCP-V2-1 5.0 ε.sub.av.(20° C., 1 kHz) =  4.0 9 PP-1-2V1 12.0 k.sub.11(20° C.) = 18.2 pN 10 DGUQU-4-F 5.0 k.sub.33(20° C.) = 15.1 pN 11 PPGU-3-F 1.0 V.sub.0(20° C.) =  2.27 V 12 PGUQU-3-F 4.5 γ.sub.1(20° C.) = 68 mPa s Σ 100.0

(123) This mixture, mixture M-36, is characterized by good properties, like those of the previous examples.

Example 37

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

(125) TABLE-US-00044 Mixture M-37 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 19.5 T(N, I) = 76.2° C. 2 CLP-3-T 4.5 Δn(20° C., 589 nm) =  0.1347 3 CLP-V-1 7.5 n.sub.e(20° C., 589 nm) =  1.6292 4 CC-3-V 29.5 n.sub.o(20° C., 589 nm) =  1.4945 5 CC-3-V1 13.0 ε.sub.∥(20° C., 1 kHz) =  5.7 6 CC-2-3 5.0 ε.sub.⊥(20° C., 1 kHz) =  2.6 7 PP-1-2V1 12.5 Δε(20° C., 1 kHz) =  3.1 8 DPGU-4-F 3.0 ε.sub.av.(20° C., 1 kHz) =  3.6 9 DGUQU-4-F 4.5 k.sub.11(20° C.) = 18.5 pN 10 DPGU-4-F 3.0 k.sub.33(20° C.) = 14.1 pN 11 PPGU-3-F 1.0 V.sub.0(20° C.) =  2.57 V Σ 100.0 γ.sub.1(20° C.) = 53 mPa s

(126) This mixture, mixture M-37, is characterized by good properties, like those of the previous examples.

Example 38

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

(128) TABLE-US-00045 Mixture M-38 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 10.0 T(N, I) = 72.5° C. 2 CLP-3-T 8.5 Δn(20° C., 589 nm) =  0.1377 3 CC-3-V 43.0 n.sub.e(20° C., 589 nm) =  1.6326 4 PP-1-2V1 7.5 n.sub.o(20° C., 589 nm) =  1.4949 5 PGP-1-2V 7.5 ε.sub.∥(20° C., 1 kHz) =  6.8 6 PGP-2-2V 8.0 ε.sub.⊥(20° C., 1 kHz) =  2.8 7 CLP-3-T 8.0 Δε(20° C., 1 kHz) =  4.0 8 DLGU-3-F 5.0 ε.sub.av.(20° C., 1 kHz) =  4.1 9 PPGU-3-F 1.0 k.sub.11(20° C.) = 18.1 pN 10 PGUQU-3-F 1.5 k.sub.33(20° C.) = 13.8 pN Σ 100.0 V.sub.0(20° C.) =  2.26 V γ.sub.1(20° C.) = 54 mPa s

(129) This mixture, mixture M-38, is characterized by good properties, like those of the previous examples.

Example 39

(130) The following mixture (M-39) is prepared and investigated.

(131) TABLE-US-00046 Mixture M-39 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 10.0 T(N, I) = 75° C. 2 CLP-3-T 3.0 Δn(20° C., 589 nm) =  0.1332 3 CC-3-V 47.5 n.sub.e(20° C., 589 nm) =  1.6277 4 CC-3-V1 4.5 n.sub.o(20° C., 589 nm) =  1.4945 5 PP-1-2V1 7.5 ε.sub.∥(20° C., 1 kHz) =  5.8 6 PGP-1-2V 7.5 ε.sub.⊥(20° C., 1 kHz) =  2.8 7 PGP-2-2V 10.0 Δε(20° C., 1 kHz) =  3.0 8 PPGU-3-F 1.0 ε.sub.av.(20° C., 1 kHz) =  3.8 9 CDUQU-3-F 5.0 k.sub.11(20° C.) = 14.9 pN 10 PGUQU-3-F 2.0 k.sub.33(20° C.) = 13.6 pN 11 PGUQU-4-F 2.0 V.sub.0(20° C.) =  2.33 V Σ 100.0 γ.sub.1(20° C.) = 51 mPa s

(132) This mixture, mixture M-39, is characterized by good properties, like those of the previous examples.

Example 40

(133) The following mixture (M-40) is prepared and investigated.

(134) TABLE-US-00047 Mixture M-40 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 10.0 T(N, I) = 75.5° C. 2 CLP-3-T 6.0 Δn(20° C., 589 nm) =  0.1359 3 CC-3-V 47.5 n.sub.e(20° C., 589 nm) =  1.6302 4 CC-3-V1 4.5 n.sub.o(20° C., 589 nm) =  1.4943 5 PP-1-2V1 7.0 ε.sub.∥(20° C., 1 kHz) =  6.0 6 PGP-1-2V 6.0 ε.sub.⊥(20° C., 1 kHz) =  2.8 7 PGP-2-2V 6.0 Δε(20° C., 1 kHz) =  3.3 8 PGU-20-F 6.0 ε.sub.av.(20° C., 1 kHz) =  3.9 9 PPGU-3-F 1.0 k.sub.11(20° C.) = 16.3 pN 10 PGUQU-3-F 2.0 k.sub.33(20° C.) = 13.6 pN 11 PGUQU-4-F 2.0 V.sub.0(20° C.) =  2.35 V Σ 100.0 γ.sub.1(20° C.) = 49 mPa s

(135) This mixture, mixture M-40, is characterized by good properties, like those of the previous examples.

Example 41

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

(137) TABLE-US-00048 Mixture M-41 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 10.0 T(N, I) = 76° C. 2 CLP-3-T 6.0 Δn(20° C., 589 nm) =  0.1350 3 CC-3-V 47.5 ne(20° C., 589 nm) =  1.6272 4 CC-3-V1 4.5 no(20° C., 589 nm) =  1.4922 5 PP-1-2V1 7.0 ε∥(20° C., 1 kHz) =  5.8 6 PGP-1-2V 6.0 ε⊥(20° C., 1 kHz) =  2.7 7 PGP-2-2V 6.0 Δε(20° C., 1 kHz) =  3.2 8 CPU-3-AT 7.0 εav.(20° C., 1 kHz) =  3.8 9 PPGU-3-F 1.0 k11(20° C.) = 16.4 pN 10 PGUQU-4-F 2.0 k33(20° C.) = 13.8 pN Σ 100.0 V0(20° C.) =  2.39 V γ1(20° C.) = 49 mPa s

(138) This mixture, mixture M-41, is characterized by good properties, like those of the previous examples.

Example 42

(139) The following mixture (M-42) is prepared and investigated.

(140) TABLE-US-00049 Mixture M-42 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 21.0 T(N, I) = 75.5° C. 2 CLP-3-T 5.0 Δn(20° C., 589 nm) =  0.1359 3 CC-3-V 51.0 n.sub.e(20° C., 589 nm) =  1.6299 4 CC-3-V1 2.0 n.sub.o(20° C., 589 nm) =  1.4940 5 PP-1-2V1 1.0 ε.sub.∥(20° C., 1 kHz) =  5.7 6 PGP-2-2V 9.0 ε.sub.⊥(20° C., 1 kHz) =  2.7 7 CCP-3-0T 2.0 Δε(20° C., 1 kHz) =  3.1 8 PGU-2-F 2.0 ε.sub.av.(20° C., 1 kHz) =  3.7 9 PPGU-3-F 1.0 k.sub.11(20° C.) = 15.8 pN 10 PGUQU-3-F 5.0 k.sub.33(20° C.) = 12.8 pN 11 PGUQU-4-F 1.0 V.sub.0(20° C.) =  2.38 V Σ 100.0 γ.sub.1(20° C.) = 46 mPa s

(141) This mixture, mixture M-42, is characterized by good properties, like those of the previous examples.

Example 43

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

(143) TABLE-US-00050 Mixture M-43 Composition Compound Concentration/ No. Abbreviation % by weight Physical properties 1 PUS-3-2 10.0 T(N, I) =  81° C. 2 CLP-3-T 8.5 Δn(20° C., 589 nm) =  0.1349 3 CC-3-V 43.0 n.sub.e(20° C., 589 nm) =  1.6292 4 CC-3-V1 8.0 n.sub.o(20° C., 589 nm) =  1.4943 5 PP-1-2V1 7.5 ε.sub.∥(20° C., 1 kHz) =  5.7 6 PGP-1-2V 7.5 ε.sub.⊥(20° C., 1 kHz) =  2.7 7 PGP-2-2V 8.0 Δε(20° C., 1 kHz) =  3.0 8 DLGU-3-F 8.5 ε.sub.av.(20° C., 1 kHz) =  3.7 9 PPGU-3-F 1.0 k.sub.11(20° C.) =  18.2 pN 10 PGUQU-3-F 1.5 k.sub.33(20° C.) =  14.9 pN Σ 100.0 γ.sub.1(20° C.) =  57 mPa s LTS Bulk (−20) = 240 h LTS Bulk (−30) = 168 h

(144) This mixture, mixture M-43, is characterized by good properties, like those of the previous examples.

(145) Without further elaboration, it is believed that one skilled in the art can, using the preceding description, utilize the present invention to its fullest extent. The preceding preferred specific embodiments are, therefore, to be construed as merely illustrative, and not limitative of the remainder of the disclosure in any way whatsoever.

(146) The entire disclosure[s] of all applications, patents and publications, cited herein and of corresponding EP Patent application No. 19218466.1, filed Dec. 20, 2019, is [are] incorporated by reference herein.

(147) The preceding examples can be repeated with similar success by substituting the generically or specifically described reactants and/or operating conditions of this invention for those used in the preceding examples.

(148) From the foregoing description, one skilled in the art can easily ascertain the essential characteristics of this invention and, without departing from the spirit and scope thereof, can make various changes and modifications of the invention to adapt it to various usages and conditions.