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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 9156959 B1

PDFFull Text
Date of Patent:
Oct. 13, 2015

Filed:

Jul. 03, 2012

Polyester elastomer foam and foam material

Applicants:

Kazumichi Kato, Ibaraki, JP;

Makoto Saitou, Ibaraki, JP;

Kiyoaki Kodama, Ibaraki, JP;

Itsuhiro Hatanaka, Ibaraki, JP;

Inventors:

Kazumichi Kato, Ibaraki, JP;

Makoto Saitou, Ibaraki, JP;

Kiyoaki Kodama, Ibaraki, JP;

Itsuhiro Hatanaka, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Osaka, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Hai Vo

Int. Cl.
CPC ...
C08J 9/12 (2006.01); C08J 9/00 (2006.01); C09J 7/02 (2006.01); B29C 44/50 (2006.01); C08L 33/06 (2006.01); B29K 21/00 (2006.01); B29K 67/00 (2006.01);
U.S. Cl.
CPC ...
C08J 9/122 (2013.01); B29C 44/50 (2013.01); C08J 9/0061 (2013.01); C09J 7/0289 (2013.01); B29K 2021/003 (2013.01); B29K 2067/00 (2013.01); C08J 2203/08 (2013.01); C08J 2367/02 (2013.01); C08J 2423/08 (2013.01); C08J 2423/26 (2013.01); C08J 2433/08 (2013.01); C08J 2451/06 (2013.01); C08L 33/068 (2013.01); C09J 2201/606 (2013.01); C09J 2203/326 (2013.01); C09J 2433/00 (2013.01); C09J 2463/00 (2013.01); C09J 2467/006 (2013.01); Y10T 428/249983 (2015.04);
Abstract

There is provided a polyester elastomer which is excellent in compression set characteristics and has a micro cell structure. The polyester elastomer foam is formed by allowing a polyester elastomer composition containing a polyester elastomer having a melting point of 180 to 240° C. and an epoxy-modified polymer to expand. The epoxy-modified polymer is an epoxy-modified polymer having a weight average molecular weight of 5,000 to 100,000 and an epoxy equivalent of 100 to 3000 g/eq.

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