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:
Nov. 13, 2001
Filed:
Sep. 28, 1998
Applicant:
Inventors:
Assignee:
Camelot Superabsorbents Limited, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/14 ;
U.S. Cl.
CPC ...
C08F 2/14 ;
Abstract
A process for producing a copolymer of an a, &bgr;-unsaturated monormer having at least one pendant unit selected from a carboxylic acid group and derivatives thereof, and a copolymersable monomer is described in which the process is carried out in a single solvent which is particularly an aromatic solvent. Processes of controlling the reaction and the particle size of the polymer produced are also described.