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:
Feb. 24, 1981
Filed:
Jun. 07, 1979
Applicant:
Inventors:
Jean Boutin, Mions, FR;
Jean Neel, Lyons, FR;
Assignee:
Rhone-Poulenc Industries, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
20415922 ; 20415923 ; 210734 ;
Abstract
Water soluble polymeric flocculants are prepared by photopolymerizing olefinically unsaturated hydrophilic monomer(s), the medium of photopolymerization being enveloped in a moist, humid gaseous atmosphere. The humidity of the enveloping environment facilitates solubilization of the resultant flocculants, without substantial decrease in the molecular weights thereof, and ensures against the by-production of water insoluble fractions.