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:
Sep. 15, 2026
Filed:
Jul. 29, 2021
Kuraray Co., Ltd., Okayama, JP;
Takahiro Sekiguchi, Ibaraki, JP;
Yasushi Senda, Ibaraki, JP;
KURARAY CO., LTD., Okayama, JP;
Abstract
A polypropylene-based resin composition, a hydrogenated block copolymer contained in the polypropylene-based resin composition, a molded article containing the polypropylene-based resin composition, and an interior-exterior decorative material for automobiles, which includes the molded article. The polypropylene-based resin composition contains a polypropylene-based polymer (A), an ethylene-α-olefin copolymer rubber (B), and a hydrogenated block copolymer (C). In the polypropylene-based resin composition, the hydrogenated block copolymer (C) is a hydrogenated product of a block copolymer having at least one polymer block (C-1) mainly composed of an aromatic vinyl compound unit, and having at least one polymer block (C-2) mainly composed of a butadiene (Bd) unit and an isoprene (Ip) unit, a content of the aromatic vinyl compound units in the hydrogenated block copolymer is less than 30% by mass, and a vinyl bond amount of the polymer block (C-2) is 20% or less.