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. 30, 2001
Filed:
Jan. 05, 1999
Applicant:
Inventors:
Klein A. Rodrigues, Signal Mountain, TN (US);
Allen M. Carrier, Hixson, TN (US);
Assignee:
National Starch and Chemical Investment Holding Corporation, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D 3/37 ; C08G 6/312 ;
U.S. Cl.
CPC ...
C11D 3/37 ; C08G 6/312 ;
Abstract
The invention provides novel polyether hydroxycarboxylate copolymers which are effective sequestering agents. The polyether hydroxycarboxylate copolymer when used in a cleaning composition enhances or “builds” the cleaning efficiency of the surfactant by inactivating hardness ions. In addition, the polyether hydroxycarboxylate copolymers assist in cleaning by dispersing and suspending soils to prevent the redeposition of soils. The polyether hydroxycarboxylate copolymer has the structure