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    • 7. 发明授权
    • Photocrosslinkable polyimides
    • 可光交联聚酰亚胺
    • US06340506B1
    • 2002-01-22
    • US09534136
    • 2000-03-23
    • Richard BucheckerGuy MarckOlivier Muller
    • Richard BucheckerGuy MarckOlivier Muller
    • C09K1900
    • C08G73/1025C08G73/101G02F1/133723G02F1/133753G02F1/133788Y10T428/1023Y10T428/1027
    • The invention relates to novel crosslinkable, photoactive polymers from the class of polyimides, polyamide acids and esters thereof, and to their use as orientation layers for liquid crystals and in the construction of unstructured and structured optical elements and multi-layer systems. The polymers contain as side-chains photo-crosslinkable groups of the following formula: The broken line indicates the point of linkage to the polymer main chain. In addition, A, B each independently of the other represents unsubstituted or optionally fluoro-, chloro-, cyano-, alkyl-, alkoxy-, fluoroalkyl- or fluoroalkoxy-substituted phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, cyclohexane-1,4-diyl, piperidine-1,4-diyl, piperazine-1,4-diyl; C represents unsubstituted or optionally fluoro-, chloro-, cyano-, alkyl-, alkoxy-, fluoroalkyl- or fluoroalkoxy-substituted phenylene, or pyrimidine-2,5-diyl, pyridine-2,5-diyl, 2,5-thiophenylene, 2,5-furanylene, 1,4- or 2,6-naphthylene.
    • 本发明涉及来自聚酰亚胺,聚酰胺酸及其酯类的新颖的可交联的光活性聚合物,以及它们作为液晶的取向层以及在非结构化和结构化的光学元件和多层系统的构造中的用途。 聚合物含有作为下式的侧链可光交联基团:虚线表示与聚合物主链的连接点。 另外,A,B各自独立地表示未取代或任选的氟,氯,氰基,烷基 - ,烷氧基 - ,氟代烷基 - 或氟代烷氧基取代的亚苯基,吡啶-2,5-二基,嘧啶-2, 5-二基,环己烷-1,4-二基,哌啶-1,4-二基,哌嗪-1,4-二基; C表示未取代或任选的氟代,氯 - ,氰基 - ,烷基 - ,烷氧基 - ,氟烷基 - 或氟代烷氧基取代的亚苯基,或嘧啶-2,5-二基,吡啶-2,5-二基,2,5-亚噻吩,2,5-亚甲苯基,1,4-或2,6-亚萘基。
    • 10. 发明授权
    • Optically active tolanes
    • 光学活动式
    • US5681504A
    • 1997-10-28
    • US567516
    • 1995-12-05
    • Richard BucheckerGuy MarckMartin Schadt
    • Richard BucheckerGuy MarckMartin Schadt
    • G02F1/13B01J23/44C07B61/00C07D317/32C09K19/54C09K19/58C09K19/34C07D317/10C09K19/30
    • C09K19/588C07D317/32
    • A chiral dopant of the formula ##STR1## wherein ring A is 1,4-phenylene which is optionally substituted with one or more fluorine atoms, chlorine atoms, bromine atoms, cyano groups, or methyl groups, and in which one or two CH groups can be replaced by nitrogen, or is trans-1,4-cyclohexylene; Z is a single covalent bond, --CH.sub.2 CH.sub.2 --, --CH.sub.2 O-- or --OCH.sub.2 --; X.sup.1,X.sup.2,X.sup.3,X.sup.4 each independently are hydrogen or fluorine; R.sup.1 is hydrogen, is alkyl with 1 to 12 carbon atoms which is optionally substituted with one or more fluorine or chlorine atoms and in which one or two non-adjacent CH.sub.2 groups can be replaced by --0--, is alkenyl with 2 to 12 carbon atoms, which is optionally substituted with one or more fluorine or chlorine atoms and in which one or two non-adjacent CH.sub.2 groups can be replaced by --O--, is a group of the formula ##STR2## and when R.sup.1 is bonded to an aromatic ring, can also be fluorine, chlorine, cyano, CF.sub.3, OCHF.sub.2 or --OCF.sub.3 ; R.sup.2, R.sup.3, R.sup.4, R.sup.5 are alkyl with 1 to 8 carbon atoms or alkenyl with 2 to 8 carbon atoms; n is 0 or 1; and * is a center of chirality.
    • 其中环A是任选被一个或多个氟原子,氯原子,溴原子,氰基或甲基取代的1,4-亚苯基,其中一个 或两个CH基团可以被氮取代,或者是反式-1,4-亚环己基; Z是单个共价键,-CH 2 CH 2 - , - CH 2 O-或-OCH 2 - ; X1,X2,X3,X4各自独立地为氢或氟; R1是氢,是具有1至12个碳原子的烷基,其任选被一个或多个氟或氯原子取代,并且其中一个或两个不相邻的CH 2基团可以被-O-取代,是具有2至12个碳原子的链烯基 ,其任选被一个或多个氟或氯原子取代,并且其中一个或两个不相邻的CH 2基团可以被-O-取代,是下式的基团(a),并且当R 1键合到 芳香环,也可以是氟,氯,氰基,CF 3,OCHF 2或-OCF 3; R2,R3,R4,R5是具有1-8个碳原子的烷基或具有2-8个碳原子的烯基; n为0或1; 和*是手性的中心。