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. 18, 1987
Filed:
Feb. 13, 1987
Applicant:
Inventors:
Robert L Wetegrove, Winfield, IL (US);
Ralph W Kaesler, Barrington, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
524827 ; 526106 ; 528492 ; 435228 ; 435262 ;
Abstract
An improved method for reducing the acrylamide present water-in-oil emulsions of acrylamide polymers with amidase which comprises adding the amidase to the water-in-oil emulsion of the acrylamide polymer upon completion of its polymerization and then subjecting the thus treated water-in-oil emulsion to one or more of the following steps: