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. 05, 2003
Filed:
May. 30, 2001
Applicant:
Inventors:
Jerome M. Harris, Penllyn, PA (US);
James W. Neely, Dresher, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/00 ; C08K 3/20 ; C08L 7/500 ;
U.S. Cl.
CPC ...
C08J 3/00 ; C08K 3/20 ; C08L 7/500 ;
Abstract
A method for reducing or eliminating syneresis in an aqueous latex composition caused by the flocculation of the latex particles as a result of interaction with hydrophobically modified ethylene oxide based urethane rheology modifiers. The method of the invention involves adding to the aqueous latex composition a molecule containing a single hydrophobic moiety which has a poly-ethylene oxide backbone chain-length of greater than about 5000 Mn. The method of the present invention also increases the viscosity efficiency of the aqueous latex composition by combining a multiphobe with a monophobe.