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:
Jun. 28, 2011
Filed:
Apr. 26, 2006
Minoru Sugawara, Ichihara, JP;
Yasuhiko Otsuki, Ichihara, JP;
Motoki Yamada, Ichihara, JP;
Ryoichi Tsunori, Ichihara, JP;
Minoru Sugawara, Ichihara, JP;
Yasuhiko Otsuki, Ichihara, JP;
Motoki Yamada, Ichihara, JP;
Ryoichi Tsunori, Ichihara, JP;
Prime Polymer Co., Ltd., Tokyo, JP;
Abstract
The extruded propylene-based resin composite foam () according to the present invention is provided by extrusion-foaming a molding material containing a propylene-based resin. The propylene-based resin forming the extruded foam has an olefin-based polymer whose loss tangent (tan δ) is 0.04 to 100 at a temperature of 298 K and a frequency of 10 Hz. The molding material includes a fibrous filler in an amount of more than 0 mass % and 60 mass % or less of the entirety of the molding material. The extruded composite foam () includes: first extruded foam () whose closed cell content is 40 percent or more and whose expansion ratio is 10 or more; and second extruded foam () whose closed cell content is less than 40 percent and whose expansion ratio is 10 or more.