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. 22, 1987
Filed:
Feb. 11, 1985
Applicant:
Inventors:
Adolfo Caporossi, Ravenna, IT;
Leonello Del Signore, L'Aquila, IT;
Assignee:
Anic, S.p.A., Palermo, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526202 ; 5263442 ;
Abstract
An improved process for the polymerization and copolymerization of vinyl chloride in suspension, characterized by using, together with the normal polymerization agents, a single suspending agent consisting of partially saponified polyvinyl acetate of medium degree of hydrolysis, prepared by the controlled alkaline alcoholysis of polyvinyl acetate in the presence of methyl acetate.