| US 7,371,438 B2 | ||
| Polymerizable liquid crystal compound, liquid crystal composition and optical anisotropic material | ||
| Yuriko Kaida, Koriyama (Japan); Hiromichi Nagayama, Koriyama (Japan); and Hiroshi Kumai, Koriyama (Japan) | ||
| Assigned to Asahi Glass Company, Limited, Tokyo (Japan) | ||
| Filed on Dec. 26, 2006, as Appl. No. 11/616,126. | ||
| Application 11/616126 is a continuation of application No. PCT/JP2005/001844, filed on Feb. 08, 2005. | ||
| Claims priority of application No. 2004-187788 (JP), filed on Jun. 25, 2004. | ||
| Prior Publication US 2007/0102669 A1, May 10, 2007 | ||
| Int. Cl. C09K 19/30 (2006.01); C09K 19/20 (2006.01); C09K 19/38 (2006.01); C07C 69/76 (2006.01); C07C 69/75 (2006.01); C07C 69/753 (2006.01) | ||
| U.S. Cl. 428—1.1 [252/299.01; 252/299.63; 252/299.67; 560/84; 560/128] | 10 Claims |
| 1. A compound represented by the following formula (1):
CH2═CR1—COO-(E1)m-Cy-Y-Cy-E2-R2 (1)
provided that the symbols in the formula have the following meanings:
R1: a hydrogen atom or a methyl group;
R2: a C1-8 alkyl group;
Y: —OCO— or —COO—;
m: 0 or 1;
E1 and E2: each independently a 1,4-phenylene group or a trans-1,4-cyclohexylene group; and
Cy: a trans-1,4-cyclohexylene group; provided that the above 1,4-phenylene group and trans-1,4-cyclohexylene group may be such that a hydrogen atom in each group
may be substituted by a fluorine atom, a chlorine atom or a methyl group.
|