Maleimide copolymer, process for the production thereof, and...

C - Chemistry – Metallurgy – 08 – F

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C08F 212/04 (2006.01) C08F 8/32 (2006.01) C08F 222/04 (2006.01) C08F 222/40 (2006.01) C08L 25/12 (2006.01) C08L 35/06 (2006.01) C08L 51/04 (2006.01) C08L 55/02 (2006.01)

Patent

CA 2749689

Provided is a maleimide copolymer which exhibits an excellent hue, an effect of imparting high heat resistance, and excellent kneadability. Specifically provided is a maleimide copolymer which comprises 50 to 60 mass% of a styrene monomer unit, 30 to 50 mass% of a maleimide monomer unit, and 0 to 10 mass% of an unsaturated dicarboxylic anhydride monomer unit, and which has a weight-average molecular weight (Mw) of 90,000 to 130,000 and a residual maleimide monomer content of 300 ppm or lower.

L'invention concerne un copolymère de maléimide qui présente une excellente teinte, une résistance à la chaleur élevée, et une excellente aptitude au pétrissage. L'invention concerne spécifiquement un copolymère de maléimide qui comprend 50 à 60% en masse de motifs monomères styréniques, 30 à 50% en masse de motifs monomères de maléimide, et 0 à 10% en masse de motifs monomères d'anhydride dicarboxylique, et qui présente un poids moléculaire moyen en poids (Mw) de 90 000 à 130 000 et un contenu monomère résiduel de maléimide de 300ppm ou moins.

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