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:
May. 23, 2006
Filed:
Dec. 06, 2002
Tomoyuki Kobayashi, Kyoto, JP;
Kenji Miyazaki, Kyoto, JP;
Eiji Nagara, Kyoto, JP;
Michiaki Sasayama, Kyoto, JP;
Mitsuo Okubo, Kyoto, JP;
Tomoyuki Kobayashi, Kyoto, JP;
Kenji Miyazaki, Kyoto, JP;
Eiji Nagara, Kyoto, JP;
Michiaki Sasayama, Kyoto, JP;
Mitsuo Okubo, Kyoto, JP;
Sekisui Chemical Co., Ltd., Osaka, JP;
Abstract
A sheet-form structure of expandable thermoplastic resin is provided which is capable of undergoing a pseudo-one-dimensional expansion in its thickness direction and which enables manufacture of thermoplastic resin foams having reduced variations in thickness and weight precisions, increased compressive strength, and excellent properties such as surface smoothness. A method of manufacturing the sheet-form structure, as well as such thermoplastic resin foams, are also provided. A sheet-form structureof expandable thermoplastic resin including granulesof expandable thermoplastic resin arranged generally uniformly for integral connection thereof through a thin filmof expandable thermoplastic resin. A thermoplastic resin foam including a continuous, thermoplastic resin foam layer, a number of highly-expanded, thermoplastic resin portions provided on at least one surface of the continuous foam layer, and slightly-expanded, thermoplastic resin thin films for covering outer surfaces of respective highly-expanded portions.