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:
Sep. 02, 2003
Filed:
Feb. 10, 2000
Michitaka Tsujimoto, Kyoto, JP;
Takamasa Fukuoka, Kyoto, JP;
Hiroyuki Kurio, Kyoto, JP;
Masashi Okabe, Kyoto, JP;
Sekisui Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Abstract
An object of the present invention is to provide a composite foam having a high compressive strength. A polyolefin resin is melted and kneaded with a modifying monomer to react them. A thermally decomposable chemical foaming agent is added to the obtained modified resin, and the mixture is kneaded. The obtained foamable resin composition is shaped into a sheet. A sheet-like facing material ( ) having a strength sufficient to inhibit the foamable sheet from expanding in in-plane directions during thermal foaming is laminated on at least one side of the foamable sheet. The obtained foamable composite sheet is thermally foamed to produce a composite foam ( ) having rugby-ball-shaped cells ( ) oriented in the direction of the sheet thickness.