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. 04, 2008
Filed:
Aug. 06, 2004
Katsumi Yamaguchi, Nara, JP;
Hiroyuki Ueno, Nara, JP;
Hiroyuki Sadakuni, Wako, JP;
Akihiro Matsuura, Nagoya, JP;
Hideo Sugimura, Nagoya, JP;
Hideyuki Deguchi, Nagoya, JP;
Katsumi Yamaguchi, Nara, JP;
Hiroyuki Ueno, Nara, JP;
Hiroyuki Sadakuni, Wako, JP;
Akihiro Matsuura, Nagoya, JP;
Hideo Sugimura, Nagoya, JP;
Hideyuki Deguchi, Nagoya, JP;
Sekisui Plastics Co., Ltd., Osaka, JP;
Hayashi Telempu Co., Ltd., Aichi, JP;
Abstract
The present invention provides a foam sheet for a car interior member which is capable of being molded into a desired shape while keeping an excellent sound absorbency. The foam sheet for a car interior member according to the invention comprises a modified polyphenylene ether-based resin foam sheet having an open cell ratio of 50% or more, and the modified polyphenylene ether-based resin foam sheet has pore portions formed in a single face thereof so as to be open to the face thereof. Accordingly, vibration energy of sounds is smoothly induced through the pore portions to the open cells of the foam sheetto vibrate cell walls of the open cells, thereby converting the vibration energy to thermal energy. Thus, an excellent sound absorbency is exhibited.