发明名称 |
LIQUID-CRYSTAL PHASE CONTAINING A DOPANT AGENT HAVING A TEMPERATURE-COMPENSATING EFFECT |
摘要 |
<p>1. A twistable liquid crystal phase containing at least one chiral compound exhibiting helix inversion and at least one further chiral compound having a high twisting capacity, which contains, as the chiral compound exhibiting helix inversion, esters of mesogenic carboxylic acids and the chiral compound butane-2,3-diol and/or propane-2,3-diol, where the chiral centers at the carbon atoms 2 and 3 may furthermore be interrupted by an alkylene group, wherein the chiral compound having a high twisting capacity has a product (p.c) of <8 mu m. % by weight and weight ratio of the compound(s) exhibiting helix inversion to that (those) having a high twisting capacity is 50:1 to 1:50.</p> |
申请公布号 |
EP0218132(B1) |
申请公布日期 |
1990.10.24 |
申请号 |
EP19860112902 |
申请日期 |
1986.09.18 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
HEPPKE, GERD, PROF. DR.;OESTREICHER, FEODOR, DR. |
分类号 |
G02F1/133;C09K19/02;C09K19/12;C09K19/58;G02F1/137;G02F1/141 |
主分类号 |
G02F1/133 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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