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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 12071492 B1

PDFFull Text
Date of Patent:
Aug. 27, 2024

Filed:

Oct. 13, 2022

Styrene resin, styrene resin composition, molded article thereof, and styrene resin production method

Applicant:

Idemitsu Kosan Co., Ltd., Tokyo, JP;

Inventors:

Takuma Aoyama, Tokyo, JP;

Kiyohiko Yokota, Ichihara, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Wenwen Cai

Int. Cl.
CPC ...
C08F 12/08 (2006.01); C08F 112/08 (2006.01); C08F 212/08 (2006.01); C08K 3/40 (2006.01); C08K 5/134 (2006.01); C08K 5/37 (2006.01); C08K 13/04 (2006.01); C08L 25/06 (2006.01);
U.S. Cl.
CPC ...
C08F 12/08 (2013.01); C08K 13/04 (2013.01); C08L 25/06 (2013.01); C08F 112/08 (2013.01); C08F 212/08 (2013.01); C08F 2420/00 (2013.01); C08K 3/40 (2013.01); C08K 5/134 (2013.01); C08K 5/37 (2013.01); C08L 2201/08 (2013.01); C08L 2205/24 (2013.01);
Abstract

A styrene resin having a syndiotactic structure, with an endothermic amount in a range of 175 to 260° C. of less than 30% based on the total endothermic amount, and a styrene resin composition containing 50 to 95% by mass of a thermoplastic resin composition and 5 to 50% by mass of a glass filler, the thermoplastic resin composition containing 100 parts by mass containing 80 to 100% by mass of a styrene resin having a syndiotactic structure and 0 to 20% by mass of a rubbery elastic material, 0.2 to 2.0 parts by mass of at least one kind of an antioxidant selected from a phenol-based antioxidant and a sulfur antioxidant, 1.5 to 5.0 parts by mass of at least one kind of a compound selected from a polyphenylene ether or a modified polyphenylene ether, and at least one kind selected from a nucleating agent or a release agent.

Find Patent Forward Citations

Aoyama, Takuma. (2024). Styrene resin, styrene resin composition, molded article thereof, and styrene resin production method (U.S. Patent No. 12071492). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12071492

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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