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    • 2. 发明授权
    • Esters
    • 酯类
    • US4708441A
    • 1987-11-24
    • US766318
    • 1985-08-16
    • Martin PetrzilkaMartin SchadtAlois Villiger
    • Martin PetrzilkaMartin SchadtAlois Villiger
    • C07C29/147C07C31/135C07C61/12C07C61/39C07C63/49C07C63/72C07C69/773C07C69/90C07C205/39C07C205/43C07C255/34C07C255/50C07C255/51C09K19/00C09K19/20C09K19/30G02F1/13C07C79/26C07C121/52C09K19/12
    • C07C255/00C07C205/43C07C29/147C07C309/00C07C31/1355C07C61/12C07C61/39C07C63/49C07C63/72C09K19/2007C09K19/3068C07B2200/09C07C2101/14
    • Compounds of the formula ##STR1## wherein X.sup.2 is a single covalent bond or --COO--; X.sup.1 is a single covalent bond, --COO--, --CH.sub.2 CH.sub.2 -- or when X.sup.2 is --COO--, X.sup.1 also can be p--C.sub.6 H.sub.4 --, p--C.sub.6 H.sub.4 --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 --p--C.sub.6 H.sub.4, p--C.sub.6 H.sub.4 --COO-- or --COO--p--C.sub.6 H.sub.4 ; ring A is a benzene ring or trans-1,4-cyclohexylene; ring B is a benzene ring or when X.sup.2 is --COO-- and X.sup.1 is a single covalent bond, --COO-- or --CH.sub.2 CH.sub.2 --, ring B also can be trans-1,4-cyclohexylene; Z.sup.1, Z.sup.2 and Z.sup.3 individually are hydrogen or when positioned on a benzene ring which is not linked directly with a further ring via a single covalent bond, Z.sup.1, Z.sup.2 and Z.sup.3 also can be halogen, cyano or methyl; Y.sup.2 is cyano, nitro, 2,2-dicyanovinyl or when Y.sup.1 is hydrogen Y.sup.2 also can be 2,2-dicyano-1-methylvinyl; Y.sup.1 is halogen, cyano, C.sub.1 -C.sub.3 -alkyl or, when X.sup.1 includes a benzene ring of --COO-- or Y.sup.2 is nitro or at least one of Z.sup.1 and Z.sup.2 is other than hydrogen, Y.sup.1 also can be hydrogen; and R.sup.1 is C.sub.1 -C.sub.12 -alkyl or when positioned on a benzene ring R.sup.1 also can be C.sub.1 -C.sub.12 -alkoxy, their manufacture and use in liquid crystalline mixtures are described.
    • 其中X 2是单个共价键或-COO-; X 1是单个共价键,-COO - , - CH 2 CH 2 - 或当X 2是-COO-时,X 1也可以是对-C 6 H 4 - ,p-C 6 H 4 -CH 2 CH 2 - , - CH 2 CH 2-p-C 6 H 4,p-C 6 H 4 -CO 2 - 或-COO-p-C6H4; 环A是苯环或反式-1,4-亚环己基; 环B为苯环,或者当X2为-COO-且X1为单一共价键时,可以为-COO-或-CH2CH2-,环B也可为反式-1,4-亚环己基; Z1,Z2和Z3分别为氢或当位于不与另一个环通过单个共价键直接连接的苯环上时,Z 1,Z 2和Z 3也可以是卤素,氰基或甲基; Y2是氰基,硝基,2,2-二氰基乙烯基或当Y1是氢时,Y2也可以是2,2-二氰基-1-甲基乙烯基; Y1是卤素,氰基,C1-C3-烷基,或当X1包括-COO-或Y2的苯环是硝基或Z1和Z2中的至少一个不是氢时,Y1也可以是氢; R1为C1-C12烷基,或者当位于苯环R1上时,也可以是C1-C12-烷氧基,它们在液晶混合物中的制备和应用被描述。
    • 7. 发明授权
    • 2,4 Diamino benzonitrile
    • 2,4-二氨基苄腈
    • US4208343A
    • 1980-06-17
    • US427008
    • 1973-12-20
    • Lawrence W. Frost
    • Lawrence W. Frost
    • C07D209/48C08G73/06C07C121/52C07C121/78
    • C07D209/48C08G73/0694
    • Deep curable polymers having heterocyclic ring systems such as isoindoloquinazolinedione ring systems prepared from novel cyanoimide polymers, most desirably 2'-cyanoimide polymers. Preferably the cyanoimide polymers are prepared from a diamine having at least one nitrile group in the two position to an amine group and a dianhydride having at least two cyclic anhydride groups. Copolymers may be prepared having other linkages, notably imide linkages, in addition to isoindoloquinazolinedione ring systems and/or other similar heterocyclic ring systems. The copolymers can be prepared by use of diamines containing one or more cyanoimide groupings and/or imide groups in their structure.
    • 具有杂环系统的深固化聚合物,例如由新型氰酰亚胺聚合物制备的异吲哚喹唑啉二酮环体系,最理想的是2'-氰基酰亚胺聚合物。 优选地,氰酰亚胺聚合物由具有两个至少一个腈基的二胺与胺基和具有至少两个环状酸酐基团的二酐制备。 可以制备除了异吲哚并喹唑啉二酮环体系和/或其它类似的杂环体系之外具有其它键,特别是酰亚胺键的共聚物。 共聚物可以通过使用其结构中含有一个或多个氰基亚胺基团和/或酰亚胺基团的二胺来制备。