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:
Aug. 12, 2003
Filed:
Jun. 29, 2000
Applicant:
Inventors:
Wesley L. Whipple, Naperville, IL (US);
Chidambaram Maltesh, Naperville, IL (US);
Cathy C. Johnson, Geneva, IL (US);
Ananthasubramanian Sivakumar, Aurora, IL (US);
Tracey M. Guddendorf, Aurora, IL (US);
Angela P. Zagala, Naperville, IL (US);
Assignee:
Ondeo Nalco Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08J 3/24 ;
U.S. Cl.
CPC ...
C08F / ; C08J 3/24 ;
Abstract
This invention is directed to structurally-modified water-soluble polymers prepared by initiating polymerization of an aqueous solution of monomers under free radical polymerization conditions to form a polymer solution and adding at least one structural modifier to the polymer solution after at least 30% polymerization of the monomers has occurred, and to use of the water-soluble cross-linked polymers as flocculating agents.