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:
Feb. 23, 1993
Filed:
Mar. 04, 1992
Applicant:
Inventors:
Kazuo Tsubuko, Numazu, JP;
Shinichi Kuramoto, Numazu, JP;
Kazuhiko Umemura, Susono, JP;
Hidemi Uematsu, Fuji, JP;
Okawara, Makoto, Tokyo, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
525112 ; 526194 ; 526201 ; 526265 ; 526273 ; 526309 ; 52631841 ; 526324 ; 526325 ; 5263292 ; 5263296 ; 526330 ; 524731 ; 524269 ; 524489 ; 524461 ; 525254 ; 5253273 ; 5253297 ; 525286 ; 525529 ; 525530 ; 525531 ;
Abstract
A method for producing a vinyl resin comprising the steps of dissolving or dispersing a polymerizable vinyl monomer in a polymerization solvent containing a silicone oil, and polymerizing the polymerizable vinyl monomer in the presence of a polymerization catalyst.