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. 21, 2002
Filed:
Jun. 20, 2000
Applicant:
Inventors:
Kunihiko Otani, Akashi, JP;
Mizuho Maeda, Kamisu-machi, JP;
Hideo Takamatsu, Kamisu-machi, JP;
Kazuhisa Takagi, Izumizaki-mura, JP;
Masashi Nemoto, Izumizaki-mura, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 6/720 ;
U.S. Cl.
CPC ...
B29C 6/720 ;
Abstract
A novel method of producing a porous product is provided, including the steps of: preparing a molded product by subjecting a molding material comprising a polymer component and a pore-forming agent dispersed in the polymer component, the pore-forming agent assuming a solid state at a room temperature, to molding at a temperature which causes the pore-forming agent to melt; and soaking the molded product with a solvent which dissolves the pore-forming agent but fails to dissolve the polymer component, to form pores.