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:
Jul. 03, 2001
Filed:
Dec. 10, 1997
Applicant:
Inventors:
Krystyna Plochocka, Scotch Plains, NJ (US);
Jui-Chang Chuang, Wayne, NJ (US);
Jenn S. Shih, Paramus, NJ (US);
Assignee:
ISP Investments Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/12 ;
U.S. Cl.
CPC ...
C08F 2/12 ;
Abstract
A non-aqueous, heterogeneous polymerization process comprises heating a reaction mixture of about 5-70%, preferably 10-30%, by weight, of a vinyl monomer in an oil as solvent, and a free radical initiator, optionally in the presence of a crosslinking agent and/or a surfactant, wherein the oil solvent is present in an amount sufficient to keep the resultant polymer in a stirrable state throughout the polymerization. The polymer reaction product is capable of forming a uniform emulsion or gel upon addition of water thereto.