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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.:

US 12715985 B1

PDFFull Text
Date of Patent:
Aug. 25, 2026

Filed:

Jun. 24, 2021

Polypropylene resin composition

Applicant:

Sumitomo Chemical Company, Limited, Tokyo, JP;

Inventors:

Yuya Yamamoto, Chiba, JP;

Takeshi Maruyama, Chiba, JP;

Assignee:

SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;

Attorney:

Meunier Carlin & Curfman LLC

Primary Examiner:

Jeffrey S Lenihan

Int. Cl.
CPC ...
C08L 23/12 (2006.01); C08K 5/20 (2006.01); C08K 7/14 (2006.01); C08L 23/0807 (2025.01); C08L 23/16 (2006.01); C08L 23/26 (2025.01);
U.S. Cl.
CPC ...
C08L 23/12 (2013.01); C08K 5/20 (2013.01); C08K 7/14 (2013.01); C08L 23/0815 (2013.01); C08L 23/16 (2013.01); C08L 23/26 (2013.01); C08L 2203/30 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2207/02 (2013.01);
Abstract

A polypropylene resin composition which contains: from 20% by weight to 50% by weight of a heterophasic propylene polymerization material (A) that has a melt flow rate of from 70 g/10 minutes to 300 g/10 minutes as determined at 230° C. under a load of 2.16 kgf in accordance with JIS-K-6758; from 15% by weight to 40% by weight of an ethylene/α-olefin copolymer (B-1) that has a melt flow rate of from 2 g/10 minutes to 100 g/10 minutes as determined at 190° C. under a load of 2.16 kgf in accordance with JIS-K-7210; from 10% by weight to 20% by weight of an ethylene/α-olefin copolymer (B-2) that has a melt flow rate of 1 g/10 minutes or less as determined at 190° C. under a load of 2.16 kgf in accordance with JIS-K-7210; from 20% by weight to 40% by weight of glass fibers (C); and from 0.1% by weight to 5% by weight of an acid-modified polyolefin (D).

Find Patent Forward Citations

Yamamoto, Yuya. (2026). Polypropylene resin composition (U.S. Patent No. 12715985). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12715985

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