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:
Nov. 26, 1985
Filed:
Jan. 17, 1984
Applicant:
Inventors:
Assignee:
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 62 ; 526202 ;
Abstract
A process for polymerizing vinyl chloride is disclosed which comprises coating prior to the polymerization the surfaces of a polymerization reactor, agitator blades and a reflux condenser with a reaction product obtained by the reaction of a phenolic compound and an aromatic aldehyde, said reaction product having an average molecular weight of from 3,000 to 10,000. Not only is the polymer scales formation prevented surprisingly, but a high quality product substantially free from fish eyes is obtained.