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. 14, 2004
Filed:
Dec. 11, 2001
Takeo Kitayama, New York, NY (US);
Nobuhiro Usui, Takatsuki, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
Disclosed is a system in which carbon dioxide is supplied to a pressure chamber of a molten resin preparing apparatus which has established a certain temperature environment to diffuse the carbon dioxide in a material synthetic resin in a molten state. After turning the material synthetic resin into a gas-dissolving-resin in the pressure chamber, the gas-dissolving-resin is supplied to a mold space of a molding apparatus for compression molding. The pressure inside the mold space is quickly lowered by raising an upper mold of the molding apparatus quickly, whereby a foamed article is produced from the gas-dissolving-resin in the mold space.