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:
Mar. 14, 1978
Filed:
Oct. 28, 1976
Applicant:
Inventors:
Kenneth G Phillips, River Forest, IL (US);
Edward G Ballweber, Glenwood, IL (US);
Karen A Nordquist, Clarendon Hills, IL (US);
Robert A Miller, Chicago, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ;
Abstract
A method for the preparation of quaternary modified acrylamide polymers is disclosed. Applicable to both solutions of acrylamide polymer and to water-in-oil emulsions of finely divided acrylamide polymer, the method involves reacting the acrylamide with a secondary amine formaldehyde adduct followed by quaternization with an alkylating agent and then, stabilization. The composition of these polymers is also disclosed.