发明名称 |
Ferroelectric liquid crystal compositions containing chiral haloalkoxy tail units |
摘要 |
The subject application discloses a chiral nonracemic composition of the general formula: R1-Ar-O-CH2-C*HX-C*HY-CH2-O-R2 wherein R1 is an achiral tail of two to sixteen carbons; Ar is an achiral FLC core of at least two rings; * denotes a chiral carbon; X and Y are halogens; and R2 is one to ten carbon atoms. The -O-CH2-C*HX-C*HY-CH2-O- segment comprises the chiral proximal segment of the chiral tail; the proximal segment is selected from the enantiomers 2R,3R-dihalo and 2S,3S-dihalo. R2 is the distal segment of the chiral tail.
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申请公布号 |
USRE34726(E) |
申请公布日期 |
1994.09.13 |
申请号 |
US19930055661 |
申请日期 |
1993.04.29 |
申请人 |
DISPLAYTECH, INC. |
发明人 |
WAND, MICHAEL;THURMES, WILLIAM N.;WALBA, DAVID |
分类号 |
C07C69/92;C07D239/26;C09K19/04;C09K19/12;C09K19/20;C09K19/34;C09K19/58;(IPC1-7):C09K19/52;C07D239/02;C07D213/28;C07C69/76 |
主分类号 |
C07C69/92 |
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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