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:
Jul. 15, 2014
Filed:
Nov. 12, 2009
Tamio Kawasumi, Chiba, JP;
Haruo Inoue, Zushi, JP;
Michio Eriguchi, Chiba, JP;
Masaki Misumi, Yokohama, JP;
Tamio Kawasumi, Chiba, JP;
Haruo Inoue, Zushi, JP;
Michio Eriguchi, Chiba, JP;
Masaki Misumi, Yokohama, JP;
Mitsui Chemicals, Inc., Minato-ku, Tokyo, JP;
Abstract
A resin foam having fine foam cells is provided at low cost. A method of producing the foam includes preparing a molten resin composition and continuous extrusion foaming of the molten resin composition. The molten resin composition is prepared by melting a resin mixture of resins (A) and (B) by dissolving a foaming agent into the resin mixture. Resins (A) and (B) respectively have appropriately selected glass transition temperatures and resin (B) particles of appropriate diameter are dispersed in resin (A).