Patent ID: 6417306
Filing Date: 2002-07-09
Classification: C08F

Abstract:
A transparent heat-resistant resin, which is obtained by a process including the step of running a polymerization of comonomers including a maleimide monomer and a methacrylic acid ester monomer,with the transparent heat-resistant resin being characterized in that: the amount of the residual maleimide monomer in the resin is not more than 10Ã— ppm when the amount of a structural unit derived from the maleimide monomer is X weight % in the resin, and the amount of the generated maleimide monomer by heating the resin at 240Â° C. for 10 minutes is not more than 10Ã— ppm when the amount of a structural unit derived from the maleimide monomer is X weight % in the resin.