The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2014
Filed:
Jan. 15, 2010
Applicants:
Tetsuo Noguchi, Ichihara, JP;
Koichi Ozawa, Ichihara, JP;
Inventors:
Tetsuo Noguchi, Ichihara, JP;
Koichi Ozawa, Ichihara, JP;
Assignee:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
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);
U.S. Cl.
CPC ...
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.