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:
Feb. 18, 2020
Filed:
Sep. 16, 2015
Applicant:
Kaneka Corporation, Osaka-shi, JP;
Inventors:
Assignee:
KANEKA CORPORATION, Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L 25/16 (2006.01); C08F 220/44 (2006.01); C08L 25/04 (2006.01); B32B 27/22 (2006.01); C08L 9/02 (2006.01); C09D 17/00 (2006.01);
U.S. Cl.
CPC ...
C08L 25/04 (2013.01); B32B 27/22 (2013.01); C08L 9/02 (2013.01); C09D 17/003 (2013.01); C01P 2004/61 (2013.01); C08F 220/44 (2013.01); C08L 25/16 (2013.01);
Abstract
An expandable thermoplastic resin particle including a polymer obtained by a process including polymerizing monomers including 60 to 80 parts by weight of α-methylstyrene and 40 to 20 parts by weight of acrylonitrile. A content of residual monomeric components in the expandable thermoplastic resin particle is not more than 0.5% by weight. When an expanded mold article is produced from the expandable thermoplastic resin particle at an expansion ratio of 10 times, foam cells in a cross section of the expanded mold article have an average chord length of from 20 μm to 60 μm.