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. 06, 2015
Filed:
Nov. 29, 2011
Makoto Saitou, Ibaraki, JP;
Itsuhiro Hatanaka, Ibaraki, JP;
Kazumichi Kato, Ibaraki, JP;
Kiyoaki Kodama, Ibaraki, JP;
Makoto Saitou, Ibaraki, JP;
Itsuhiro Hatanaka, Ibaraki, JP;
Kazumichi Kato, Ibaraki, JP;
Kiyoaki Kodama, Ibaraki, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
There is provided a resin foam excellent in dustproof performance, particularly dustproof performance in a dynamic environment. The resin foam of the present invention has a thickness recovery ratio of 65% or more, wherein the thickness recovery ratio is defined as a ratio of a thickness 1 second after releasing a compressed state to an initial thickness, when the resin foam is compressed for 1 minute in the thickness direction so as to give a thickness equal to 20% of the initial thickness in a 23° C. atmosphere; and then the compressed state is released in a 23° C. atmosphere.