Claims
- 1. A liquid crystal mixture comprising at least one compound of the formula: ##STR27## wherein R.sup.1 and R.sup.2 are independently C.sub.1 -12 straight or branched alkyl, X is selected from the group consisting of fluorine, chlorine, bromine, iodine, and nitrile, and n is 1 or 2, in an amount effective to provide liquid-crystalline properties to said mixture.
- 2. The mixture of claim 1, wherein X is fluorine and n is 1.
- 3. A liquid crystal mixture comprising at least one compound of the formula: ##STR28## wherein R.sup.1 and R.sup.2 are independently C.sub.1 -12 straight or branched alkyl, and X is selected from the group consisting of fluorine, chlorine, bromine, iodine, and nitrile, in an amount effective to provide liquid-crystalline properties to said mixture.
- 4. The liquid crystal mixture of claim 3, wherein X is fluorine.
Priority Claims (3)
Number |
Date |
Country |
Kind |
198/82 |
Jan 1982 |
CHX |
|
292/82 |
Jan 1982 |
CHX |
|
2725/82 |
May 1982 |
CHX |
|
Parent Case Info
This is a continuation of Ser. No. 07/477,490, filed Feb. 9, 1990, now U.S. Pat. No. 5,179,101, which is a continuation of 06/800,920, filed Nov. 25, 1985, now U.S. Pat. No. 5,227,484, which is a continuation of 06/457,567, filed Jan. 13, 1983, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4256656 |
Beguin et al. |
Oct 1979 |
|
4391730 |
Kuschel et al. |
Jul 1983 |
|
4410445 |
Baur et al. |
Oct 1983 |
|
Continuations (3)
|
Number |
Date |
Country |
Parent |
477490 |
Feb 1990 |
|
Parent |
800920 |
Nov 1985 |
|
Parent |
457567 |
Jan 1983 |
|