摘要:
The present invention refers to an optical film comprising one or more polyarylates having at least some units represented by the general structure: wherein A represents one or more different bisphenolfluorene radicals having the general formula (I): wherein R1 and R2 independently represent an alkyl group, a halogen, an alkoxy group, an acyl group, a phenyl group or a nitrile group, with the proviso that R1 and R2 are not both an alkyl group; R3, R4, R5 and R6 represent a hydrogen atom, an alkyl group, a halogen, an alkoxy group, an acyl group, a phenyl group, a nitro group, or a nitrile group; B represents one or more different dicarboxy radicals having the formula: wherein X is a divalent hydrocarbon group having from 1 to 20 carbon atoms, and n is the number of the repeating units which build up the polymer and is a positive integer higher than 20. The optical film of the present invention has excellent mechanical and thermal properties, a high Tg and does not readily yellow upon exposure to light.
摘要:
The present invention refers to a polymeric optical film the polymer of the polymeric optical film consisting essentially of one or more polyarylates having repeating units represented by the general structure: wherein A represents one or more different bisphenolfluorene radicals having the general formula (I): wherein R1 and R2 independently represent an alkyl group, a halogen atom, an alkoxy group, an acyl group, a phenyl group or a nitrile group, with the proviso that R1 and R2 are not both an alkyl group; R3, R4, R5 and R6 represent a hydrogen atom, an alkyl group, a halogen, an alkoxy group, an acyl group, a phenyl group, a nitro group, or a nitrile group, with the proviso that when R1 and R2 are both bromide atoms, at least one of R3, R4, R5 and R6 is different from hydrogen atom; B represents one or more different dicarboxy radicals having the formula: wherein X is a divalent aromatic hydrocarbon group having from 6 to 20 carbon atoms, and n is the number of the repeating units which build up the polymer and is a positive integer higher than 20. The optical film of the present invention has excellent mechanical and thermal properties, a high Tg and does not readily yellow upon exposure to light.
摘要翻译:本发明涉及一种聚合物光学薄膜,聚合物光学薄膜的聚合物基本上由一种或多种具有由通式结构表示的重复单元的聚芳酯组成:其中A表示一种或多种具有通式(I)的不同双苯芴基:其中 R 1和R 2独立地表示烷基,卤素原子,烷氧基,酰基,苯基或腈基,条件是R R 1和R 2都不是烷基; R 3,R 4,R 5和R 6表示氢原子,烷基,卤素 ,烷氧基,酰基,苯基,硝基或腈基,条件是当R 1和R 2都是溴原子时 ,R 3,R 4,R 5和R 6中的至少一个不同于氢原子; B表示一个或多个具有下式的不同的二羧基:其中X是具有6至20个碳原子的二价芳族烃基,n是构成聚合物并且是高于20的正整数的重复单元的数目 本发明的光学膜具有优异的机械和热性能,高Tg,并且在曝光时不容易发黄。