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. 01, 1983
Filed:
Jun. 04, 1981
Applicant:
Inventor:
Stephane Noel, Grimbergen, BE;
Assignee:
Solvay & Cie., Brussels, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 83 ; 526 85 ; 526202 ;
Abstract
Process for rapidly terminating the polymerization of vinyl chloride in aqueous suspension in the presence of lower dialkyl peroxydicarbonates by introducing effective amounts of ammonium hydroxide and an alkali metal thiosulphate, e.g. sodium or ammonium thiosulphate, into the polymerization medium. This process enables polymerization to be quickly and effectively terminated when a breakdown occurs.