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. 25, 2003
Filed:
May. 08, 2000
Applicant:
Inventors:
Sameer B. Agarwal, Glendale Heights, IL (US);
Phillip W. Carter, Naperville, IL (US);
Martin J. Coffey, Wheaton, IL (US);
Assignee:
Ondeo Nalco Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L 7/301 ; D21C 3/20 ; D21C 5/02 ;
U.S. Cl.
CPC ...
C08L 7/301 ; D21C 3/20 ; D21C 5/02 ;
Abstract
A method of dispersing hydrophobic particles in aqueous suspensions comprising adding to the suspension an effective amount of an ethylene oxide-propylene oxide block copolymer, wherein the copolymer has a molecular weight of from about 1,000 to about 50,000 and a HLB of from about 1 to about 4 and compositions comprising the ethylene oxide-propylene oxide block copolymer.