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:
Oct. 06, 2026
Filed:
Apr. 23, 2021
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Hirotaka Kondo, Shiga, JP;
Yoshiyuki Oka, Shiga, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/00 (2006.01); B32B 5/18 (2006.01); C08J 9/10 (2006.01);
U.S. Cl.
CPC ...
C08J 9/0061 (2013.01); B32B 5/18 (2013.01); C08J 9/103 (2013.01); B32B 2266/025 (2013.01); B32B 2307/50 (2013.01); B32B 2307/732 (2013.01); B32B 2605/08 (2013.01); C08J 2203/184 (2013.01); C08J 2323/06 (2013.01); C08J 2323/12 (2013.01);
Abstract
A polyolefin resin foam sheet includes a resin mixture as a base resin, the resin mixture including 0% by mass or more and 30% by mass or less of polyethylene resin, 30% by mass or more and 80% by mass or less of polypropylene resin, and 20% by mass or more and 40% by mass or less of a polyolefin elastomer, the polyolefin resin foam sheet fulfilling a range of −35% or more and 0% or less for dimensional changes in machine and transverse directions under heating for 10 minutes at a temperature 20° C. higher than a maximum melting point that is a highest melting peak in a differential scanning calorimetry.