Patent ID: 6028159
Filing Date: 2000-02-22
Classification: C08G,G02B

Abstract:
A polymer for optical communications, comprising a repeating unit represented by the formula: ##STR7## where X.sub.1, X.sub.2 and X.sub.3 are independently selected from the group consisting of halogen atom, halogenated alkyl group, halogenated alkoxy group, halogenated aromatic ring group, --NO.sub.2, --OR.sup.1 and SR.sup.1 (where R.sup.1 is a halogenated alkyl or halogenated aromatic ring groups);and where Z.sub.1 and Z.sub.2 are selected from the group consisting of divalent halogenated aliphatic hydrocarbon, divalent halogenated aliphatic cyclic hydrocarbon or divalent halogenated aromatic hydrocarbon.