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. 05, 2010
Filed:
Aug. 31, 2006
Koichi Kono, Asaka, JP;
Kohtaro Kimishima, Yokohama, JP;
Hiroyuki Ozaki, Kawasaki-si, JP;
Patrick Brant, Seabrook, TX (US);
Jeffrey L. Brinen, League City, TX (US);
Zerong Lin, Kingwood, TX (US);
Koichi Kono, Asaka, JP;
Kohtaro Kimishima, Yokohama, JP;
Hiroyuki Ozaki, Kawasaki-si, JP;
Patrick Brant, Seabrook, TX (US);
Jeffrey L. Brinen, League City, TX (US);
Zerong Lin, Kingwood, TX (US);
Tonen Chemical Corporation, Tokyo, JP;
Abstract
Disclosed herein is a multi-layer, microporous polyolefin membrane comprising a first porous layer of a polyethylene, and a second porous layer comprising a polyethylene, and polypropylene having a weight-average molecular weight of 6×10or more and a fraction having a molecular weight of 1.8×10or more being 10% or more by mass.