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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.:

US 8916644 B1

PDFFull Text
Date of Patent:
Dec. 23, 2014

Filed:

Jan. 07, 2010

Polypropylene resin composition for use in formation of microporous membrane

Applicants:

Satoshi Tamura, Ichihara, JP;

Ryoichi Tsunori, Ichihara, JP;

Inventors:

Satoshi Tamura, Ichihara, JP;

Ryoichi Tsunori, Ichihara, JP;

Assignees:

Toray Battery Separator Film Co., Ltd, Tochigi, JP;

Prime Polymer Co., Ltd., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

James J Seidleck

Assistant Examiner:

Deve E Valdez

Int. Cl.
CPC ...
H01M 2/16 (2006.01); C08K 3/00 (2006.01); C08F 4/76 (2006.01); C08F 110/06 (2006.01); B01D 63/00 (2006.01); H01G 9/02 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 71/26 (2006.01); C08J 5/18 (2006.01); C08L 23/12 (2006.01); H01G 9/00 (2006.01); C08L 23/04 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01G 9/02 (2013.01); B01D 67/002 (2013.01); B01D 67/0027 (2013.01); B01D 67/003 (2013.01); B01D 69/02 (2013.01); B01D 71/26 (2013.01); C08F 110/06 (2013.01); C08J 5/18 (2013.01); C08L 23/12 (2013.01); H01G 9/155 (2013.01); H01M 2/1653 (2013.01); B01D 2323/06 (2013.01); B01D 2323/12 (2013.01); B01D 2325/22 (2013.01); B01D 2325/32 (2013.01); C08L 23/04 (2013.01); H01M 10/0525 (2013.01); Y02E 60/13 (2013.01);
Abstract

[Object] To provide a polypropylene resin composition for use in the formation of a microporous membrane having excellent heat resistance and strength. [Solution] A polypropylene resin composition for use in the formation of a microporous membrane according to the present invention comprises as an essential component an ultra-high-molecular-weight propylene homopolymer (A) that satisfies the following requirements (1) to (4):

Find Patent Forward Citations

Tamura, Satoshi. (2014). Polypropylene resin composition for use in formation of microporous membrane (U.S. Patent No. 8916644). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8916644

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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