LIQUID-CRYSTALLINE MEDIUM

Abstract

Liquid-crystalline media containing one or more compounds of formula T

##STR00001##

and one or more compounds of formulae I, II and/or III,

##STR00002##

high-frequency components containing these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g., phased array antennas.

Claims

1. A liquid-crystal medium, comprising one or more compounds of formula T ##STR00364## in which R.sup.T denotes halogen, CN, NCS, R.sup.F, R.sup.FO or R.sup.FS, wherein R.sup.F denotes fluorinated alkyl or fluorinated alkenyl having up to 12 C atoms, ##STR00365## on each occurrence, independently of one another, denote ##STR00366## L.sup.1 and L.sup.2 identically or differently, denote F, Cl or methyl, and t is 0, 1 or 2, and one or more compounds selected from the group of compounds of formulae I, II and III, ##STR00367## in which R.sup.1 denotes H, unfluorinated alkyl or unfluorinated alkoxy having 1 to 17 C atoms, or unfluorinated alkenyl, unfluorinated alkenyloxy or unfluorinated alkoxyalkyl having 2 to 15 C atoms, in which one or more CH.sub.2-groups may be replaced by ##STR00368## n is 0, 1 or 2, ##STR00369## on each occurrence, independently of one another, denote ##STR00370## in which R.sup.L, on each occurrence identically or differently, denotes H or alkyl having 1 to 6 C atoms, and wherein ##STR00371## alternatively denotes ##STR00372## R.sup.2 denotes H, unfluorinated alkyl or unfluorinated alkoxy having 1 to 17 C atoms, or unfluorinated alkenyl, unfluorinated alkenyloxy or unfluorinated alkoxyalkyl having 2 to 15 C atoms, in which one or more CH.sub.2-groups may be replaced by ##STR00373## Z.sup.21 denotes trans-CHCH, trans-CFCF or CC, and ##STR00374## independently of one another, denote ##STR00375## in which R.sup.L, on each occurrence identically or differently, denotes H or alkyl having 1 to 6 C atoms; R.sup.3 denotes H, unfluorinated alkyl or unfluorinated alkoxy having 1 to 17 C atoms, or unfluorinated alkenyl, unfluorinated alkenyloxy or unfluorinated alkoxyalkyl having 2 to 15 C atoms, in which one or more CH.sub.2-groups may be replaced by ##STR00376## one of Z.sup.31 and Z.sup.32, denotes trans-CHCH, trans-CFCF or CC and the other one, independently thereof, denotes CC, trans-CHCH, trans-CFCF or a single bond, and ##STR00377## independently of one another, denote ##STR00378## in which R.sup.L, on each occurrence identically or differently, denotes H or alkyl having 1 to 6 C atoms, and wherein ##STR00379## alternatively denotes ##STR00380##

2. The liquid-crystal medium according to claim 1, wherein the medium comprises one or more compounds selected from the group of compounds of formulae T-1 and T-2 ##STR00381## in which ##STR00382## have the meanings given for formula T, and n is 1, 2, 3, 4, 5, 6, or 7.

3. The liquid-crystal medium according to claim 2, wherein the medium comprises one or more compounds of formula T-1 in which n is 1.

4. Liquid-crystal medium according to claim 1, wherein the medium comprises one or more compounds selected from the group of compounds of formula I-1 to I-5 ##STR00383## in which L.sup.1, L.sup.2 and L.sup.3 on each occurrence, identically or differently, denote H or F, and ##STR00384## have the meanings given for formula I.

5. The liquid-crystal medium according to claim 1, wherein the medium comprises one or more compounds selected from the group of compounds of the formulae II-1 to II-3 ##STR00385## in which R.sup.2, ##STR00386## have the meanings given for formula II.

6. The liquid-crystal medium according to claim 5, wherein the medium comprises one or more compounds of formula II-1 in a total concentration of 25% or less.

7. The liquid-crystal medium according to claim 1, wherein the medium comprises one or more compounds selected from the group of compounds of the formulae III-1 to III-6 ##STR00387## in which R.sup.3, ##STR00388## have the meanings given for formula III, and Z.sup.31 and Z.sup.32 independently of one another, denote trans-CHCH or trans-CFCF, and in formula III-6 alternatively one of Z.sup.31 and Z.sup.32 may denote CC.

8. The liquid-crystal medium according to claim 1, wherein the medium comprises one or more compounds of formula T in a total concentration in the range of from 5% to 30%.

9. The liquid-crystal medium according to claim 2, wherein the medium comprises one or more compounds of formula T-1 in a total concentration in the range of from 5% to 30%.

10. The liquid-crystal medium according to claim 1, wherein the medium additionally comprises one or more chiral compounds.

11. The liquid-crystal medium according to claim 1, wherein the clearing temperature of the medium is 90 C. or more.

12. A component for high-frequency technology, comprising the liquid crystal medium according to claim 1.

13. The component according to claim 12, which is suitable for operation in the microwave range.

14. The component according to claim 12, which is a liquid-crystal based antenna element, a phase shifter, a tunable filter, a tunable metamaterial structure, a matching network or a varactor.

15. A microwave antenna array, comprising one or more components according to claim 12.

16. A process for the preparation of a liquid-crystal medium according to claim 1, comprising mixing one or more compounds of formula T with one or more compounds selected from the group consisting of compounds of formula I, II and III, and optionally with one or more additional mesogenic or chiral compounds.

17. The liquid-crystal medium according to claim 1, wherein in a compound of formula I, II or III, at least one group R.sup.L is different from H.

Description

EXAMPLES

[0645] The following examples illustrate the present invention without limiting it in any way.

[0646] However, it is clear to the person skilled in the art from the physical properties 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.

Mixture Examples

[0647] Liquid-crystal mixtures N1 to N14 having the compositions and properties as indicated in the following tables are prepared and characterized with respect to their general physical properties and their applicability in microwave components at 19 GHz and 20 C. These data are given in the tables below the composition tables for the individual mixture examples.

TABLE-US-00007 Mixture N1 PTU-3-S 7.0% T.sub.(N, I) [ C.]: 162.5 PTU-5-S 7.0% (1 kHz, 20 C.): 17.8 PPTU-4-S 7.0% .sub. (1 kHz, 20 C.): 21.7 PPTU-5-S 7.0% .sub. (1 kHz, 20 C.): 3.9 CPU-2-S 18.0% .sub.1 [mPa .Math. s], (20 C.): 408 CPU-3-S 13.0% K.sub.1 [pN], (20 C.): 15.1 CPU-4-S 13.0% K.sub.3 [pN], (20 C.): 14.6 CPU-5-S 13.0% (20 C., 19 GHz): 0.310 PPU-TO-S 15.0% .sub.r, (20 C., 19 GHz): 3.5380 100.0% .sub.r, (20 C., 19 GHz): 2.4420 tan .sub. r, (20 C., 19 GHz): 0.0057 tan .sub. r, (20 C., 19 GHz): 0.0097 (20 C., 19 GHz): 32 Mixture N2 PPTU-4-S 5.0% PPTU-5-S 7.0% PGTU-4-S 4.0% CPU-2-S 20.0% CPU-4-S 20.0% P(2)TU-5-S 14.0% PTU-3V-S 16.0% PPU-TO-S 14.0% 100.0% Mixture N3 PPTU-4-S 7.0% T.sub.(N, I) [ C.]: 130.0 PPTU-5-S 8.0% (20 C., 19 GHz): 0.316 CPU-2-S 20.0% .sub.r, (20 C., 19 GHz): 3.5803 CPU-4-S 17.0% .sub.r, (20 C., 19 GHz): 2.4488 P(2)TU-5-S 14.0% tan .sub. r, (20 C., 19 GHz): 0.0059 PTU-3V-S 20.0% tan .sub. r, (20 C., 19 GHz): 0.0096 PPU-TO-S 14.0% (20 C., 19 GHz): 32.9 100.0% Mixture N4 PTU-3-S 10.0% T.sub.(N, I) [ C.]: 139.0 PTU-5-S 15.0% (1 kHz, 20 C.): 18.0 PPTU-4-S 7.0% .sub. (1 kHz, 20 C.): 22.4 PPTU-5-S 7.0% .sub. (1 kHz, 20 C.): 4.3 CPU-2-S 22.0% .sub.1 [mPa .Math. s], (20 C.): 331 CPU-3-S 10.0% K.sub.1 [pN], (20 C.): 14.2 CPU-4-S 14.0% K.sub.3 [pN], (20 C.): 24.2 PPU-TO-S 15.0% (20 C., 19 GHz): 0.306 100.0% .sub.r, (20 C., 19 GHz): 3.5802 .sub.r, (20 C., 19 GHz): 2.4841 tan .sub. r, (20 C., 19 GHz): 0.0062 tan .sub. r, (20 C., 19 GHz): 0.0107 (20 C., 19 GHz): 28.6 Mixture N5 PTU-3-S 10.0% PTU-5-S 10.0% PGU-3-S 10.0% PGU-5-S 10.0% PPTU-4-S 6.0% PPTU-5-S 8.0% PGTU-4-S 6.0% CPU-2-S 18.0% CPU-4-S 8.0% PPU-TO-S 14.0% 100.0% Mixture N6 PTU-3-S 10.0% T.sub.(N, I) [ C.]: 145.5 PTU-5-S 10.0% (1 kHz, 20 C.): 20.9 PGU-3-S 15.0% .sub. (1 kHz, 20 C.): 25.4 PPTU-4-S 6.0% .sub. (1 kHz, 20 C.): 4.5 PPTU-5-S 9.0% .sub.1 [mPa .Math. s], (20 C.): 377 PGTU-4-S 6.0% K.sub.1 [pN], (20 C.): 16.0 CPU-2-S 20.0% K.sub.3 [pN], (20 C.): 22.8 CPU-4-S 10.0% (20 C., 19 GHz): 0.321 PPU-TO-S 14.0% .sub.r, (20 C., 19 GHz): 3.6582 100.0% .sub.r, (20 C., 19 GHz): 2.4853 tan .sub. r, (20 C., 19 GHz): 0.0062 tan .sub. r, (20 C., 19 GHz): 0.0115 (20 C., 19 GHz): 27.9 Mixture N7 PTU-3-S 10.0% T.sub.(N, I) [ C.]: 137.0 PTU-5-S 15.0% (1 kHz, 20 C.): 17.7 PPTU-4-S 7.0% .sub. (1 kHz, 20 C.): 21.9 PPTU-5-S 7.0% .sub. (1 kHz, 20 C.): 4.2 CPU-2-S 26.0% .sub.1 [mPa .Math. s], (20 C.): 305 CPU-4-S 20.0% LTS (bulk, 30 C.) [h] 1000 PPU-TO-S 15.0% (20 C., 19 GHz): 0.310 100.0% .sub.r, (20 C., 19 GHz): 3.5398 .sub.r, (20 C., 19 GHz): 2.4428 tan .sub. r, (20 C., 19 GHz): 0.0062 tan .sub. r, (20 C., 19 GHz): 0.0107 (20 C., 19 GHz): 29.0 Mixture N8 PTU-3-S 13.0% T.sub.(N, I) [ C.]: 137.0 PTU-5-S 12.0% (1 kHz, 20 C.): 17.4 PPTU-4-S 6.0% .sub. (1 kHz, 20 C.): 21.4 PPTU-5-S 8.0% .sub. (1 kHz, 20 C.): 4.0 CPU-2-S 26.0% .sub.1 [mPa .Math. s], (20 C.): 286 CPU-4-S 20.0% LTS (bulk, 30 C.) [h] 1000 PPU-TO-S 15.0% (20 C., 19 GHz): 0.308 100.0% .sub.r, (20 C., 19 GHz): 3.5669 .sub.r, (20 C., 19 GHz): 2.4672 tan .sub. r, (20 C., 19 GHz): 0.0063 tan .sub. r, (20 C., 19 GHz): 0.0107 (20 C., 19 GHz): 28.8 Mixture N9 PTU-3-S 11.0% T.sub.(N, I) [ C.]: 142.5 PTU-5-S 11.0% (1 kHz, 20 C.): 16.9 PPTU-4-S 6.0% .sub. (1 kHz, 20 C.): 20.9 PPTU-5-S 8.0% .sub. (1 kHz, 20 C.): 4.0 CPU-2-S 26.0% .sub.1 [mPa .Math. s], (20 C.): 302 CPU-4-S 20.0% LTS (bulk, 30 C.) [h] 1000 PPU-TO-S 18.0% (20 C., 19 GHz): 0.310 100.0% .sub.r, (20 C., 19 GHz): 3.5467 .sub.r, (20 C., 19 GHz): 2.4456 tan .sub. r, (20 C., 19 GHz): 0.0062 tan .sub. r, (20 C., 19 GHz): 0.0105 (20 C., 19 GHz): 29.5 Mixture N10 PTU-3-S 6.0% T.sub.(N, I) [ C.]: 154.0 PTU-5-S 10.0% (1 kHz, 20 C.): 16.2 PPTU-4-S 6.0% .sub. (1 kHz, 20 C.): 20.0 PPTU-5-S 10.0% .sub. (1 kHz, 20 C.): 3.8 CPU-2-S 26.0% .sub.1 [mPa .Math. s], (20 C.): 338 CPU-4-S 20.0% LTS (bulk, 30 C.) [h] 1000 PPU-TO-S 22.0% (20 C., 19 GHz): 0.311 100.0% .sub.r, (20 C., 19 GHz): 3.5709 .sub.r, (20 C., 19 GHz): 2.4609 tan .sub. r, (20 C., 19 GHz): 0.0060 tan .sub. r, (20 C., 19 GHz): 0.0101 (20 C., 19 GHz): 30.8 Mixture N11 PTU-3-S 9.0% T.sub.(N, I) [ C.]: 150.5 PTU-5-S 9.0% (1 kHz, 20 C.): 17.4 PPTU-4-S 6.0% .sub. (1 kHz, 20 C.): 21.5 PPTU-5-S 10.0% .sub. (1 kHz, 20 C.): 4.1 CPU-2-S 26.0% .sub.1 [mPa .Math. s], (20 C.): 326 CPU-4-S 20.0% LTS (bulk, 30 C.) [h] 1000 PPU-TO-S 20.0% (20 C., 19 GHz): 0.307 100.0% .sub.r, (20 C., 19 GHz): 3.5792 .sub.r, (20 C., 19 GHz): 2.4794 tan .sub. r, (20 C., 19 GHz): 0.0061 tan .sub. r, (20 C., 19 GHz): 0.0103 (20 C., 19 GHz): 29.8 Mixture N12 PTU-5-S 10.0% T.sub.(N, I). [ C.]: 165.0 PPTU-4-S 6.0% (1 kHz, 20 C.): 14.8 PPTU-5-S 10.0% .sub. (1 kHz, 20 C.): 18.6 CPU-2-S 26.0% .sub. (1 kHz, 20 C.): 3.9 CPU-4-S 20.0% .sub.1 [mPa .Math. s], (20 C.): 426 PPU-TO-S 28.0% LTS (bulk, 30 C.) [h] 1000 100.0% (20 C., 19 GHz): 0.307 .sub.r, (20 C., 19 GHz): 3.5417 .sub.r, (20 C., 19 GHz): 2.4552 tan .sub. r, (20 C., 19 GHz): 0.0058 tan .sub. r, (20 C., 19 GHz): 0.0091 (20 C., 19 GHz): 33.7 Mixture N13 PTU-3-S 10.0% T.sub.(N, I) [ C.]: 149.5 PTU-5-S 8.0% (1 kHz, 20 C.): 21.2 PGU-3-S 16.0% .sub. (1 kHz, 20 C.): 25.6 PPTU-4-S 6.0% .sub. (1 kHz, 20 C.): 4.4 PPTU-5-S 8.0% .sub.1 [mPa .Math. s], (20 C.): 400 PGTU-4-S 5.0% K.sub.1 [pN], (20 C.): 16.2 CPU-2-S 19.0% K.sub.3 [pN], (20 C.): 23.3 CPU-4-S 16.0% LTS (bulk, 20 C.) [h] 1000 PPU-TO-S 12.0% LTS (bulk, 30 C.) [h] 552 100.0% LTS (bulk, 40 C.) [h] 360 (20 C., 19 GHz): 0.306 .sub.r, (20 C., 19 GHz): 3.6258 .sub.r, (20 C., 19 GHz): 2.5147 tan .sub. r, (20 C., 19 GHz): 0.0061 tan .sub. r, (20 C., 19 GHz): 0.0115 (20 C., 19 GHz): 26.6 Mixture N14 PGU-3-S 10.0% T.sub.(N, I) [ C.]: 155.0 PGU-4-S 6.0% (1 kHz, 20 C.): 23.2 PGU-5-S 6.0% .sub. (1 kHz, 20 C.): 27.6 PPTU-4-S 6.0% .sub. (1 kHz, 20 C.): 4.4 PPTU-5-S 8.0% .sub.1 [mPa .Math. s], (20 C.): 745 PGTU-4-S 5.0% K.sub.1 [pN], (20 C.): 16.6 CPU-2-S 20.0% K.sub.3 [pN], (20 C.): 21.4 CPU-4-S 16.0% LTS (bulk, 30 C.) [h] 1000 PPU-TO-S 15.0% LTS (bulk, 40 C.) [h] 1000 PI(2)TU-5-S 8.0% (20 C., 19 GHz): 0.315 100.0% .sub.r, (20 C., 19 GHz): 3.5614 .sub.r, (20 C., 19 GHz): 2.4397 tan .sub. r, (20 C., 19 GHz): 0.0056 tan .sub. r, (20 C., 19 GHz): 0.0103 (20 C., 19 GHz): 30.6

[0648] The liquid-crystalline media according to the invention exhibit high clearing temperatures in combination with very good LTS and excellent microwave-application relevant properties.

[0649] The following Table 1 shows a comparison of the properties of Example Mixtures N8, N9 and N10:

[0650] It can be seen that the increase of the proportion of the compound PPU-TO-S in the medium results in an increase of the clearing temperature of the medium. Unexpectedly, despite this increase, all mixtures show LTS values of at least 1000 h at 30 C. At the same time, the figure-of-merit of the media becomes better with an increased proportion of PPU-TO-S due to higher tunability t and lower dielectric loss tan .sub..sub.r,.

[0651] It is noteworthy that the compound PPU-TO-S has a comparatively low dielectric anisotropy of =3.8, whereas for example the compound PPU-3-S has a high dielectric anisotropy of =20.7 (both values extrapolated from 10% solution in ZLI-4792).

[0652] Nevertheless, the presence of PPU-TO-S in the polar liquid-crystalline media according to the invention has no negative influence on the tunability compared to liquid-crystalline media from the state of the art.

TABLE-US-00008 TABLE 1 PPU-TO-S LTS (bulk, Mixture [% T.sub.(N,I) 30 C.) Example by weight] tan .sub. r, || [ C.] [h] N8 15 3.08 0.0107 28.8 137 1000 N9 18 3.10 0.0105 29.5 143 1000 N10 22 3.11 0.0101 30.8 154 1000

[0653] As mentioned above, in a preferred embodiment the media according to the present invention comprise a stabiliser.

[0654] The following Mixtures N15 to N28 are obtained from the mixtures N1 to N14 using the stabiliser ST-3b-1 in the amounts given in Table 2.

##STR00362##

TABLE-US-00009 TABLE 2 Mixture Example Host Mixture c(ST-3b-1) [%] N15 N1 0.12 N16 N2 0.90 N17 N3 0.10 N18 N4 0.11 N19 N5 0.12 N20 N6 0.13 N21 N7 0.12 N22 N8 0.12 N23 N9 0.12 N24 N10 0.12 N25 N11 0.13 N26 N12 0.14 N27 N13 0.15 N28 N14 0.17

[0655] The following Mixtures N29 to N42 are obtained from the mixtures N1 to N14 using the stabiliser ST-3a-1 in the amounts given in Table 3.

##STR00363##

TABLE-US-00010 TABLE 3 Mixture Example Host Mixture c(ST-3b-1) [%] N29 N1 0.12 N30 N2 0.90 N31 N3 0.10 N32 N4 0.11 N33 N5 0.12 N34 N6 0.13 N35 N7 0.12 N36 N8 0.12 N37 N9 0.12 N38 N10 0.12 N39 N11 0.13 N40 N12 0.14 N41 N13 0.15 N42 N14 0.17

[0656] Further examples according to the invention are mixtures N43 to N55:

TABLE-US-00011 Mixture N43 U-200 0.12 T.sub.(N, I) [ C.]: 162.5 PPTU-4-S 5.99 (1 kHz, 20 C.): 14.9 PPTU-5-S 11.99 .sub. (1 kHz, 20 C.): 18.7 CPU-2-S 25.97 .sub. (1 kHz, 20 C.): 3.8 CPU-4-S 19.98 .sub.1 [mPa s], (20 C.): 477 PPU-TO-S 27.96 K.sub.1 [pN], (20 C.): 14.9 P(2)TU-5-S 7.99 K.sub.3 [pN], (20 C.): 24.7 100.0 K.sub.3/K.sub.1 [pN], (20 C.): 1.66 V.sub.0 [V], (20 C.): 1.06 LTS bulk [h], 30 C.): 1000 LTS bulk [h], 40 C.): 1000 (20 C., 19 GHz): 0.313 .sub.r, (20 C., 19 GHz): 3.5893 .sub.r, (20 C., 19 GHz): 2.4643 tan .sub. r, (20 C., 19 GHz): 0.0060 tan .sub. r, (20 C., 19 GHz): 0.0095 (20 C., 19 GHz): 32.9 Mixture N44 U-200 0.12 T.sub.(N, I) [ C.]: 153.5 PTU-3-S 5.99 n [589 nm, 20 C.): 0.3716 PTU-5-S 9.99 n.sub.e [589 nm, 20 C.): 1.9062 PPTU-4-S 5.99 n.sub.o [589 nm, 20 C.): 1.5346 PPTU-5-S 9.99 (1 kHz, 20 C.): 16.2 CPU-2-S 25.97 .sub. (1 kHz, 20 C.): 20.0 CPU-4-S 19.98 .sub. (1 kHz, 20 C.): 3.8 PPU-TO-S 21.97 .sub.1 [mPa s], (20 C.): 338 100.0 K.sub.1 [pN], (20 C.): 14.1 K.sub.3 [pN], (20 C.): 23.1 K.sub.3/K.sub.1 [pN], (20 C.): 1.64 V.sub.0 [V], (20 C.): 1.00 LTS bulk [h], 30 C.): 1000 (20 C., 19 GHz): 0.311 .sub.r, (20 C., 19 GHz): 3.5709 .sub.r, (20 C., 19 GHz): 2.4609 tan .sub. r, (20 C., 19 GHz): 0.0060 tan .sub. r, (20 C., 19 GHz): 0.0101 (20 C., 19 GHz): 30.8 Mixture N45 PTU-3-S 14.0 T.sub.(N, I) [ C.]: 154.5 PGU-3-S 14.0 (1 kHz, 20 C.): 20.2 PPTU-5-S 20.0 .sub. (1 kHz, 20 C.): 24.4 CPU-2-S 35.0 .sub. (1 kHz, 20 C.): 4.2 PPU-TO-S 17.0 .sub.1 [mPa s], (20 C.): 401 100.0 K.sub.1 [pN], (20 C.): 15.8 K.sub.3 [pN], (20 C.): 25.4 K.sub.3/K.sub.1 [pN], (20 C.): 1.61 V.sub.0 [V], (20 C.): 0.93 LTS bulk [h], 30 C.): 96 (20 C., 19 GHz): 0.327 .sub.r, (20 C., 19 GHz): 3.6248 .sub.r, (20 C., 19 GHz): 2.4381 tan .sub. r, (20 C., 19 GHz): 0.0061 tan .sub. r, (20 C., 19 GHz): 0.0107 (20 C., 19 GHz): 30.6 Mixture N46 PTU-3-S 15.0 T.sub.(N, I) [ C.]: 154.5 PGU-3-S 15.0 (1 kHz, 20 C.): 19.1 PPTU-5-S 20.0 .sub. (1 kHz, 20 C.): 23.3 CPU-2-S 25.0 .sub. (1 kHz, 20 C.): 4.1 PPU-TO-S 25.0 .sub.1 [mPa s], (20 C.): 406 100.0 K.sub.1 [pN], (20 C.): 16.1 K.sub.3 [pN], (20 C.): 25.5 K.sub.3/K.sub.1 [pN], (20 C.): 1.59 V.sub.0 [V], (20 C.): 0.96 LTS bulk [h], 30 C.): 96 (20 C., 19 GHz): 0.335 .sub.r, (20 C., 19 GHz): 3.6775 .sub.r, (20 C., 19 GHz): 2.4451 tan .sub. r, (20 C., 19 GHz): 0.0063 tan .sub. r, (20 C., 19 GHz): 0.0111 (20 C., 19 GHz): 30.2 Mixture N47 PTU-3-S 15.0 T.sub.(N, I) [ C.]: 153.5 PPTU-5-S 20.0 (1 kHz, 20 C.): 17.2 CPU-2-S 40.0 .sub. (1 kHz, 20 C.): 21.2 PPU-TO-S 25.0 .sub. (1 kHz, 20 C.): 4.0 100.0 .sub.1 [mPa s], (20 C.): 382 K.sub.1 [pN], (20 C.): 15.5 K.sub.3 [pN], (20 C.): 25.1 K.sub.3/K.sub.1 [pN], (20 C.): 1.62 V.sub.0 [V], (20 C.): 1.00 LTS bulk [h], 30 C.): 240 (20 C., 19 GHz): 0.328 .sub.r, (20 C., 19 GHz): 3.6143 .sub.r, (20 C., 19 GHz): 2.4271 tan .sub. r, (20 C., 19 GHz): 0.0062 tan .sub. r, (20 C., 19 GHz): 0.0102 (20 C., 19 GHz): 32.2 Mixture N48 PTU-3-S 15.0 T.sub.(N, I) [ C.]: 155 PPTU-5-S 20.0 (1 kHz, 20 C.): 16.4 CPU-2-S 35.0 .sub. (1 kHz, 20 C.): 20.3 PPU-TO-S 30.0 .sub. (1 kHz, 20 C.): 3.9 100.0 .sub.1 [mPa s], (20 C.): 389 K.sub.1 [pN], (20 C.): 15.9 K.sub.3 [pN], (20 C.): 25.2 K.sub.3/K.sub.1 [pN], (20 C.): 1.58 V.sub.0 [V], (20 C.): 1.04 LTS bulk [h], 30 C.): 72 (20 C., 19 GHz): 0.327 .sub.r, (20 C., 19 GHz): 3.6422 .sub.r, (20 C., 19 GHz): 2.4517 tan .sub. r, (20 C., 19 GHz): 0.0063 tan .sub. r, (20 C., 19 GHz): 0.0103 (20 C., 19 GHz): 31.7 Mixture N49 PTU-3-S 6.0 T.sub.(N, I) [ C.]: 157 PTU-5-S 10.0 (1 kHz, 20 C.): 17.0 PPTU-4-S 6.0 .sub. (1 kHz, 20 C.): 21.0 PPTU-5-S 10.0 .sub. (1 kHz, 20 C.): 3.9 CPU-2-S 30.0 .sub.1 [mPa s], (20 C.): 411 PPU-TO-S 22.0 K.sub.1 [pN], (20 C.): 15.8 LPTU-4-S 16.0 K.sub.3 [pN], (20 C.): 23.7 100.0 K.sub.3/K.sub.1 [pN], (20 C.): 1.51 V.sub.0 [V], (20 C.): 1.02 (20 C., 19 GHz): 0.329 .sub.r, (20 C., 19 GHz): 3.6089 .sub.r, (20 C., 19 GHz): 2.4200 tan .sub. r, (20 C., 19 GHz): 0.0058 tan .sub. r, (20 C., 19 GHz): 0.0095 (20 C., 19 GHz): 34.6 Mixture N50 CPU-2-S 30.0 T.sub.(N, I) [ C.]: 189.5 PPTU-4-S 10.0 (20 C., 19 GHz): 0.343 PPTU-5-S 20.0 .sub.r, (20 C., 19 GHz): 3.7043 PPU-TO-S 20.0 .sub.r, (20 C., 19 GHz): 2.4334 LPTU-4-S 20.0 tan .sub. r, (20 C., 19 GHz): 0.0051 100.0 tan .sub. r, (20 C., 19 GHz): 0.0083 (20 C., 19 GHz): 41.3 Mixture N51 CPU-2-S 30.0 T.sub.(N, I) [ C.]: 182.5 PPTU-4-S 10.0 (20 C., 19 GHz): 0.341 PPTU-5-S 20.0 .sub.r, (20 C., 19 GHz): 3.6820 PPU-TO-S 20.0 .sub.r, (20 C., 19 GHz): 2.4268 PGU-3-S 20.0 tan .sub. r, (20 C., 19 GHz): 0.0056 100.0 tan .sub. r, (20 C., 19 GHz): 0.0100 (20 C., 19 GHz): 34.1 Mixture N52 PTU-5-S 10.0 T.sub.(N, I) [ C.]: 164.5 PGU-3-S 10.0 (1 kHz, 20 C.): 16.8 PPTU-4-S 6.0 .sub. (1 kHz, 20 C.): 20.8 PPTU-5-S 12.0 .sub. (1 kHz, 20 C.): 3.9 CPU-2-S 22.0 .sub.1 [mPa s], (20 C.): 450 CPU-4-S 12.0 K.sub.1 [pN], (20 C.): 16.1 PPU-TO-S 28.0 K.sub.3 [pN], (20 C.): 25.5 100.0 K.sub.3/K.sub.1 [pN], (20 C.): 1.58 V.sub.0 [V], (20 C.): 1.03 (20 C., 19 GHz): 0.324 .sub.r, (20 C., 19 GHz): 3.6247 .sub.r, (20 C., 19 GHz): 2.4506 tan .sub. r, (20 C., 19 GHz): 0.0058 tan .sub. r, (20 C., 19 GHz): 0.0105 (20 C., 19 GHz): 30.9 Mixture N53 PGU-3-S 16.0 T.sub.(N, I) [ C.]: 161.5 PPTU-4-S 6.0 (1 kHz, 20 C.): 16.9 PPTU-5-S 12.0 .sub. (1 kHz, 20 C.): 20.9 CPU-2-S 20.0 .sub. (1 kHz, 20 C.): 4.0 CPU-4-S 10.0 .sub.1 [mPa s], (20 C.): 508 PPU-TO-S 28.0 K.sub.1 [pN], (20 C.): 15.9 P(2)TU-5-S 8.0 K.sub.3 [pN], (20 C.): 25.4 100.0 K.sub.3/K.sub.1 [pN], (20 C.): 1.60 V.sub.0 [V], (20 C.): 1.02 (20 C., 19 GHz): 0.325 .sub.r, (20 C., 19 GHz): 3.6255 .sub.r, (20 C., 19 GHz): 2.4462 tan .sub. r, (20 C., 19 GHz): 0.0060 tan .sub. r, (20 C., 19 GHz): 0.0103 (20 C., 19 GHz): 31.6 Mixture N54 PPTU-4-S 6.0 T.sub.(N, I) [ C.]: 163.5 PPTU-5-S 12.0 (1 kHz, 20 C.): 14.9 CPU-2-S 26.0 .sub. (1 kHz, 20 C.): 18.7 CPU-4-S 20.0 .sub. (1 kHz, 20 C.): 3.8 PPU-TO-S 28.0 .sub.1 [mPa s], (20 C.): 477 P(2)TU-5-S 8.0 K.sub.1 [pN], (20 C.): 14.9 100.0 K.sub.3 [pN], (20 C.): 24.7 K.sub.3/K.sub.1 [pN], (20 C.): 1.66 V.sub.0 [V], (20 C.): 1.06 LTS bulk [h], 30 C.): 1000 LTS bulk [h], 40 C.): 1000 (20 C., 19 GHz): 0.312 .sub.r, (20 C., 19 GHz): 3.5741 .sub.r, (20 C., 19 GHz): 2.4594 tan .sub. r, (20 C., 19 GHz): 0.0058 tan .sub. r, (20 C., 19 GHz): 0.0095 (20 C., 19 GHz): 32.8 Mixture N55 U-200 0.12 T.sub.(N, I) [ C.]: 162.5 PPTU-4-S 5.99 (1 kHz, 20 C.): 14.9 PPTU-5-S 11.99 .sub. (1 kHz, 20 C.): 18.7 CPU-2-S 25.97 .sub. (1 kHz, 20 C.): 3.8 CPU-4-S 19.98 .sub.1 [mPa s], (20 C.): 477 PPU-TO-S 27.96 K.sub.1 [pN], (20 C.): 14.9 P(2)TU-5-S 7.99 K.sub.3 [pN], (20 C.): 24.7 100.0 K.sub.3/K.sub.1 [pN], (20 C.): 1.66 V.sub.0 [V], (20 C.): 1.06 LTS bulk [h], 30 C.): 1000 LTS bulk [h], 40 C.): 1000 (20 C., 19 GHz): 0.313 .sub.r, (20 C., 19 GHz): 3.5893 .sub.r, (20 C., 19 GHz): 2.4643 tan .sub. r, (20 C., 19 GHz): 0.0060 tan .sub. r, (20 C., 19 GHz): 0.0095 (20 C., 19 GHz): 32.9

[0657] 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.

[0658] 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. From the 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.

[0659] The entire disclosure[s] of all applications, patents and publications, cited herein and of corresponding European application No. EP 18163715.8, filed Mar. 23, 2018, are incorporated by reference herein.