Patent ID: 7106940
Filing Date: 2006-09-12
Classification: C08F,G02B

Abstract:
1. An optical waveguide comprising a core portion and a clad portion, wherein at least one of the core portion and clad portion is obtained from a cured article produced by curing a curable fluorine-containing prepolymer (I) represented by the formula (1): in which the structural unit M is a structural unit derived from a fluorine-containing ethylenic monomer and represented by the formula (M2) and/or (M3): wherein Rf is an organic group in which 1 to 3 of Y 1 (Y 1 is a monovalent organic group having 2 to 10 carbon atoms and an ethylenic carbon-carbon double bond at its end) are bonded to a fluorine-containing alkyl group having 1 to 40 carbon atoms or a fluorine-containing alkyl group having 2 to 100 carbon atoms and ether bond; the structural unit A is a structural unit derived from monomer copolymerizable with the fluorine-containing ethylenic monomer providing the structural unit M, and the structural unit M and the structural unit A are contained in amounts of from 0.1 to 100% by mole and from 0 to 99.9% by mole, respectively; said curable fluorine-containing prepolymer (I) (1) is a non-crystalline polymer having a fluorine content of not less than 25% by weight, and (2) has a carbon-carbon double bond in the polymer side chain and/or at an end of the polymer trunk chain.