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:
Apr. 26, 2011
Filed:
Jun. 10, 2002
Applicants:
Yasuhiro Tasaki, Fukushima, JP;
Genzo Asai, Fukushima, JP;
Yoshikatsu Satake, Fukushima, JP;
Inventors:
Assignee:
Kureha Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 5/16 (2006.01); C08K 9/10 (2006.01); C08K 9/06 (2006.01); B01J 13/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a thermally foamable microsphere having a structure with a foaming agent encapsulated in a shell formed of a polymer, wherein the shell contains an organosilicon compound, and a process for producing a thermally foamable microsphere having a structure with a foaming agent encapsulated in a shell formed of a polymer by suspension polymerization of a polymerizable mixture containing at least a foaming agent and a polymerizable monomer in an aqueous dispersion medium, wherein the polymerizable mixture is suspension polymerized in the presence of the organosilicon compound.