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. 20, 2001
Filed:
Jun. 09, 1998
Applicant:
Inventors:
John David Schofield, Bury, GB;
Dean Thetford, Rochdale, GB;
Assignee:
Zeneca Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/308 ;
U.S. Cl.
CPC ...
C08G 6/308 ;
Abstract
A dispersant for aqueous mill-bases obtainable by reacting a polyethylene glycol with a molar excess of a hydroxycarboxylic acid containing from 4 to 17 carbon atoms or lactone thereof and/or with a C,-alkylene oxide to form a polymeric diol and phosphating the diol. The preferred hydroxycarboxylic acid or lactone is &egr;-caprolactone.