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. 29, 1976
Filed:
Feb. 06, 1975
Applicant:
Inventors:
Karsten Flatau, Marl, DT;
Bernd Terwiesch, Marl, DT;
Assignee:
Chemische Werke Huls Aktiengesellschaft, Marl, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 62 ; 526344 ; 526345 ; 526200 ; 526227 ;
Abstract
The formation of polymer on the surfaces of the reactor equipment in the commercial production of polyvinyl chloride and copolymers thereof is avoided by employing equipment whose surfaces which contact the monomer are formed of substantially pure nickel.