发明授权
- 专利标题: Chiral dopants for liquid crystalline mixtures
- 专利标题(中): CHILAL DOPANTS用于液晶混合物
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申请号: US570677申请日: 1990-08-22
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公开(公告)号: US5093027A公开(公告)日: 1992-03-03
- 发明人: Stephen Kelly , Frans Leenhouts
- 申请人: Stephen Kelly , Frans Leenhouts
- 申请人地址: NJ Nutley
- 专利权人: Hoffmann-La Roche Inc.
- 当前专利权人: Hoffmann-La Roche Inc.
- 当前专利权人地址: NJ Nutley
- 优先权: CHX3169/89 19890901
- 主分类号: C07C41/01
- IPC分类号: C07C41/01 ; C07C41/16 ; C07C43/115 ; C07C43/168 ; C07C43/205 ; C07C43/21 ; C07C67/08 ; C07C69/708 ; C07C69/757 ; C07C69/773 ; C07C69/94 ; C07C253/30 ; C07C255/46 ; C07C255/54 ; C07C255/57 ; C09K19/20 ; C09K19/30 ; C09K19/32 ; C09K19/42 ; C09K19/46 ; C09K19/54 ; G02F1/13
摘要:
Optically active dopants of the formula ##STR1## wherein A represents an optically active group selected from 1,1'-binaphthyl-2,2'-diyl, --CHR.sup.1 --CHR.sup.2 -- or --CH(COOR.sup.3)--CH(COOR.sup.4)--; Z denotes a group --(CH.sub.2).sub.4 --, --O(CH.sub.2).sub.3 -- or the trans form of --OCH.sub.2 --CH.dbd.CH--; R.sup.1 is hydrogen, methyl, phenyl or cyclohexyl; R.sup.2 is methyl, phenyl or cyclohexyl; R.sup.3 and R.sup.4 denote alkyl; Y stands for --CO-- or --CH.sub.2 --; ring B represents 1,4-phenylene or trans-1,4-cyclohexylene; and R is hydrogen, alkyl, alkoxy or cyano, liquid crystalline mixtures which contain such dopants and their use for optical and electro-optical purposes.
公开/授权文献
- US5752303A Method for manufacturing a face shooter ink jet printing head 公开/授权日:1998-05-19
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