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. 08, 2015
Filed:
May. 15, 2009
Yukito Miyaguchi, Sodegaura, JP;
Hideaki Hori, Sodegaura, JP;
Yukito Miyaguchi, Sodegaura, JP;
Hideaki Hori, Sodegaura, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
A polypropylene-based resin composition comprising 61 to 85% by weight of a copolymer (X) of propylene, α-olefin having 4 or more of carbon atoms and/or ethylene, in which a content of a constitutional unit derived from propylene is 86 to 97% by weight, a total of a content of a constitutional unit derived from ethylene and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 3 to 14% by weight, provided that a total of the content of a constitutional unit derived from propylene, the content of a constitutional unit derived from ethylene and the content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is defined to be 100% by weight, 1 to 38% by weight of a copolymer (Y) of propylene and α-olefin having 4 or more of carbon atoms, in which a melting point is 115° C. or more, and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 10 to 30% by weight, and 1 to 38% by weight of a copolymer (Z) of propylene and α-olefin having 4 or more of carbon atoms, in which a melting point is less than 115° C., and a content of a constitutional unit derived from α-olefin having 4 or more of carbon atoms is 30 to 40% by weight, wherein a total of the copolymer (X), the copolymer (Y) and the copolymer (Z) is defined to be 100% by weight.