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:
Jun. 25, 1985
Filed:
Aug. 20, 1982
Applicant:
Inventors:
Gilbert Sielfeld, Marl, DE;
Rudolf de Jong, Marl, DE;
Assignee:
Chemische Werke Huels AG, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526200 ; 526201 ;
Abstract
Vinyl chloride polymers and copolymers are produced by suspension polymerization in the presence of a small amount of specific ethylene-vinyl acetate copolymers. The catalysts, the ethylene-vinyl acetate copolymer, and the monomer or monomer mixture are added to the polymerization charge before the suspension agent. The resultant polyvinyl chloride is especially suitable for lowering the viscosity of polyvinyl chloride plastisols.