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:
Jan. 11, 1977
Filed:
Jan. 13, 1975
Applicant:
Inventors:
David E Farley, Pittsburgh, PA (US);
Janice Elaine Morgan, Clinton, PA (US);
Assignee:
Calgon Corporation, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260875 ; 260895 ;
Abstract
Water-soluble segmented polymers of the ##STR1## A--B--A, and (A--B).sub.n types wherein the A-segments are grafted homopolymer, copolymer and/or terpolymer segments of water-soluble vinyl monomers, and the B-segments are homopolymer segments of poly(vinyl pyrrolidone) or poly(vinyl alcohol), are prepared by a process employing inverse emulsion techniques and cerium (IV) salt initiators.
Farley, David. (1977). Preparation of water soluble segmented polymers (U.S. Patent No. 4002589). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4002589
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile