Methyl Methacrylate resin composition

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United States of America Patent

PATENT NO 6252002
SERIAL NO

09449416

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Abstract

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The present invention provides a methyl methacrylate resin composition including (A) about 90 to 99% by weight of a methyl methacrylate polymer with a branched structure having a weight average molecular weight of about 80,000 to 400,000 and a molecular weight between branch points, defined by using a z-average molecular weight, of about 30,000 to 500,000 and (B) about 10 to 1% by weight of a high molecular weight methyl methacrylate polymer having a weight average molecular weight of about 1,000,000 to 5,000,000, which exhibits little drawdown in heat molding and is suitable especially for the production of large molded articles by extrusion molding, blow molding and expansion molding.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO CHEMICAL COMPANY LIMITED27-1 SHINKAWA 2-CHOME CHUO-KU TOKYO 104-8260

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sakamoto, Takashi Ehime, JP 222 1758
Yamada, Taiji Ehime, JP 4 72

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