| 发明名称 |
Orientation layer for liquid crystals |
| 摘要 |
<p>The invention relates to novel linear and cyclic polymers or oligomers containing a photoreactive ethene group for use as alignment (orientation) layer for liquid crystals of the formula <IMAGE> in which Ma, Mb and Mc are monomer units for homopolymers or copolymers; x, y and z represent molar fractions of the copolymers, where in each case 0 < x </= 1, 0 </= y </= 1 and 0 </= z < 1; Sa and Sb are spacer units; Za and Zb are moieties which can undergo photochemical isomerisation/dimerisation; n is a number from 4 to 100,000; and m is 0 or 1, and to their use as alignment layers for liquid crystals.</p> |
| 申请公布号 |
EP0611786(B1) |
申请公布日期 |
1999.04.14 |
| 申请号 |
EP19940101699 |
申请日期 |
1994.02.04 |
| 申请人 |
ROLIC AG |
发明人 |
ROLF, PETER;KELLY, STEPHEN;SCHADT, MARTIN;SCHMITT, KLAUS;SCHUSTER, ANDREAS |
| 分类号 |
C08F220/22;C08F2/04;C08F12/00;C08F20/00;C08F20/22;C08F20/26;C08F220/28;C08F246/00;C08G77/04;C08G77/38;C08G83/00;C08L101/00;C09K19/56;G02F1/1337;(IPC1-7):C08G77/38;G02F1/133 |
主分类号 |
C08F220/22 |
| 代理机构 |
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