MALEIMIDE COPOLYMER AND RESIN COMPOSITION CONTAINING THE SAME

摘要

A maleimide copolymer comprising maleimide monomer units, aromatic vinyl monomer units and other vinyl monomer units and having the following characteristics, and a maleimide resin composition comprising the above copolymer and a rubbery graft polymer: I) the content of residual maleimide monomer in the copolymer is 0.1 wt. % or less, and the total content of volatiles other than the maleimide monomer is 0.5 wt. % or less; II) the content of a compound obtained from at least one monomer selected from the group consisting of a maleimide monomer, aromatic vinyl monomers and other vinyl monomers and having a weight-average molecular weight of 200 to 1,000 as determined by gel permeation chromatography is 2-10 wt. %; III) the copolymer has a yellow index of 30 or less; and IV) the copolymer has an intrinsic viscosity of 0.3 to 1.5.