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:
Aug. 17, 1976
Filed:
Aug. 05, 1974
Applicant:
Inventor:
Louis E Trapasso, Watchung, NJ (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526303 ; 260 / ; 260 / ; 526 88 ; 526207 ; 526210 ; 526229 ; 526911 ; 528503 ;
Abstract
There is provided a process for preparing polyelectrolytes by a water-in-oil emulsion process. A water-in-oil azeotropic emulsion is heated with agitation and a concentrated aqueous solution of small amounts of a polymerization initiator and gel inhibitor and at least one water-soluble vinyl monomer adapted to polymerize at reflux temperature with a concomitant loss of water by azeotropic distillation is added thereto to polymerize said water-soluble monomer. The polymerized product including a gel inhibitor forms a gel-free aqueous solution.