Patent ID: 6608158
Filing Date: 2003-08-19
Classification: C08F,G03F,Y10S

Abstract:
A process for preparing a copolymer resin of the formula: whereinR is tert-butyl, tetrahydropyranyl, tetrahydrofuranyl or ethoxyethyl; and the ratio w:x:y:z is (0.1-99%):(0.1-99%):(0.1-99%):(0.1-99%), said process comprising polymerizing a mixture comprising a norbornene derivative of the formula: 2-hydroxyethyl-5-norbornene-2-carboxylate, maleic anhydride and mono-methyl-cis-5-norbonen-endo-2,3-dicarboxylate in the presence of a radical initiator under conditions sufficient to produce the copolymer resin.