Patent ID: 6100371
Filing Date: 2000-08-08
Classification: C08G,G02B

Abstract:
A polyimide for optical communications, comprising a repeating unit represented by the formula: ##STR7## where X.sub.1 and X.sub.2 are each selected from the group consisting of chlorine, bromine, iodine, chlorinated alkyl group, brominated alkyl group, iodinated alkyl group, chlorinated aromatic ring group, brominated aromatic ring group, iodinated aromatic ring group, --NO.sub.2, chlorinated alkoxy group, brominated alkoxy group, iodinated alkoxy group, chlorinated aryloxy group, brominated aryloxy group, iodinated aryloxy group and --SR, where R is selected from the group consisting of halogenated alkyl and halogenated aromatic ring group; andwhere Z is selected from the group consisting of divalent halogenated aliphatic hydrocarbon, divalent halogenated aliphatic cyclic hydrocarbon and divalent halogenated aromatic hydrocarbon.