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:
May. 04, 1976
Filed:
Jan. 10, 1972
Applicant:
Inventors:
Donald R Napier, Corpus Christi, TX (US);
Paul H Washecheck, Ponca City, OK (US);
Assignee:
Continental Oil Company, Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
2524 / ; 252428 ; 2524 / ; 2524 / ; 526119 ; 526123 ; 526125 ; 526303 ; 526328 ; 526329 ; 526541 ; 526344 ; 526347 ;
Abstract
A polymerization catalyst consisting of a cupric salt, a copper chelating agent, and a cyanide salt is disclosed for polymerizing vinyl monomers. Such a catalyst system is less hazardous than are the persulfate and peroxide catalysts; the molecular weight of the polymer is higher under comparable polymerization conditions; and the catalyst is not consumed by certain impurities which react with the prior art catalyst.