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. 18, 2008
Filed:
Feb. 17, 2006
Michitaka Tsujimoto, Kyoto, JP;
Katsuo Matsuzaka, Kyoto, JP;
Koji Yamaguchi, Kyoto, JP;
Masashi Okabe, Kyoto, JP;
Masanori Hirata, Osaka, JP;
Masafumi Ishiyama, Kyoto, JP;
Michitaka Tsujimoto, Kyoto, JP;
Katsuo Matsuzaka, Kyoto, JP;
Koji Yamaguchi, Kyoto, JP;
Masashi Okabe, Kyoto, JP;
Masanori Hirata, Osaka, JP;
Masafumi Ishiyama, Kyoto, JP;
Sekisui Chemical Co., Ltd., Osaka, JP;
Abstract
A polyolefin resin drawn sheetis laminated on at least one face of a sheet-form core materialhaving a density of 30 to 300 kgf/m. At this time, a sheet or filmmade of a bonding synthetic resin or rubber having a flow starting temperature lower than the thermal deformation temperature of the core materialand the melting point of the drawn sheetis interposed between the core materialand the drawn sheet. The resultant stack product is heated to not less than the flow starting temperature of the synthetic resin or the rubber and not more than the thermal deformation temperature of the core materialand the melting point of the drawn sheet. At the same time of or after the heating, the stack product is pressed to apply a compression strain of 0.01 to 10% to the core material