Patent · US Active

Maleimide copolymer, process for the production thereof, and heat resistant resin compositions containing same

US8742046B2 · kind B2 · utility

0Cited by

6References

7Claims

0Family size

Assignee

DENKI KAGAKU KOGYO KABUSHIKI KAISHA · JP

Inventors

Tetsuo Noguchi · Lawrence, US
Koichi Ozawa · Susono, JP

Key dates

Filing date	Jan 15, 2010
Grant date	Jun 3, 2014
Priority date	—
Expiry date	Nov 14, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2201/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.