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. 06, 1979
Filed:
Mar. 27, 1978
Applicant:
Inventors:
Louis A Goretta, Naperville, IL (US);
Robert R Otremba, Chicago, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 64 ; 526240 ; 526303 ;
Abstract
The molecular weight of acrylic acid-acrylamide copolymers can be controlled between the range of 3,000-300,000 by polymerizing an aqueous solution of these comonomers in a tube reactor at a pressure between 50-350 psig in the presence of a free radical catalyst and with the following reaction parameters being specified; monomer solids, initiation temperature, monomer pH, initiator concentration, acrylic acid-acrylamide monomer ratio, and residence time in the reactor.
Goretta, Louis. (1979). Method of controlling the molecular weight of vinyl carboxylic (U.S. Patent No. 4143222). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4143222
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile