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:
May. 05, 2020
Filed:
May. 14, 2018
Sumitomo Chemical Company, Limited, Tokyo, JP;
Ryosuke Kurokawa, Ichihara, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
A thermoplastic elastomer composition contains components (A), (B), (C), and (D), wherein the weight ratio of component (C) to component (D) is ≥0.1 and <2, component (A) is an ethylene random copolymer containing ≥50% and ≤90% of a monomer unit derived from ethylene by weight relative to the component (A) and a monomer unit derived from at least one monomer selected from the group consisting of α-olefins having a number of carbon atoms of ≥3 and ≤10, component (B) is a polymer containing >50% and ≤100% of a monomer unit derived from propylene by weight relative to the component (B), component (C) is a copolymer containing an ethylene polymerization block and an ethylene-α-olefin copolymerization block, and component (D) is an ethylene polymer containing >90% and ≤100% of a monomer unit derived from ethylene by weight relative to the component (D).