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. 11, 1981
Filed:
Feb. 25, 1980
Applicant:
Inventors:
Kenneth G Phillips, River Forest, IL (US);
Mary E Bingham, Palos Hills, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
525344 ; 525369 ;
Abstract
This invention relates to a method for the hydrolysis of acrylamide polymers utilizing less than stoichiometric amounts of a hydrolysis agent selected from the group consisting of alkali metal hydroxides and alkali metal sulfites. The process is conducted with a water-in-oil emulsion (latex) of the acrylamide polymer at an elevated temperature and pressure.