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:
Nov. 13, 2012
Filed:
Mar. 24, 2009
Kentaro Kikuchi, Tokyo, JP;
Shunichiro I, Tokyo, JP;
Kentaro Kikuchi, Tokyo, JP;
Shunichiro I, Tokyo, JP;
Asahi Kasei E-materials Corporation, Tokyo, JP;
Abstract
Provided is a microporous film formed of a thermoplastic resin composition comprising 100 parts by mass of (a) a polyolefin resin and from 5 to 90 parts by mass of (b) a polyphenylene ether resin; the microporous film having a sea-island structure with the polyolefin resin as a sea portion and with the polyphenylene ether resin as an island portion and having a air permeability of from 10 sec/100 cc to 5000 sec/100 cc. The microporous film does not break easily even at high temperatures and has good heat resistance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile