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:
Aug. 11, 1998
Filed:
Jan. 22, 1996
Yoshiyuki Tsuda, Ikeda, JP;
Kazutaka Uekado, Nishinomiya, JP;
Hideo Nakamoto, Osaka, JP;
Tomohisa Tenra, Yao, JP;
Tsukasa Takushima, Higashiosaka, JP;
Matsushita Refrigeration Company, Higashiosaka, JP;
Abstract
A thermal insulating foamed material is a polyurethane foam having closed cells, and produced by mixing, agitating and foaming a polyol, a polyisocyanate, a foam stabilizer, a catalyst, a blowing agent and a carbon dioxide adsorbent. The carbon dioxide adsorbent is produced by mixing and granulating powders of at least one member of alkali metal hydroxides and alkaline-earth metal hydroxides and organic or inorganic powders having a water absorbing property and soaked with water in advance, and formed by a resin film, such as a methacrylic acid ester, which is permeable to carbon dioxide but hardly permeable to water.