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. 17, 2002
Filed:
Dec. 23, 1997
Applicant:
Inventors:
Nobuaki Urashima, Nara, JP;
Hayato Ikeda, Nara, JP;
Assignee:
Nippon Shokubai Co., Ltd., Osaka-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/06 ;
U.S. Cl.
CPC ...
C08F 4/06 ;
Abstract
An inorganic dispersion stabilizer having a hydrophobic inorganic oxide such as hydrophobic silica dispersed in an aqueous medium in the presence of an hydrophilic organic compound such as alcohol. An suspension polymerization process for producing resinous particles of a narrow particle diameter distribution by dispersing a monomer into an dispersion medium in the presence of the inorganic dispersion stabilizer, and polymerizing the monomer.