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. 08, 2002
Filed:
Mar. 10, 2000
Applicant:
Inventors:
David Richard Amick, Doylestown, PA (US);
James Watson Neely, Dresher, PA (US);
Assignee:
Rohm and Haas, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/06 ; C08L 7/508 ; C08L / ;
U.S. Cl.
CPC ...
C08K 5/06 ; C08L 7/508 ; C08L / ;
Abstract
A method of improving the viscosity stability of an aqueous composition by the addition to the aqueous composition of a mixture of at least one multiphobe and at least one monophobe is disclosed. The method is particularly useful for stabilizing the viscosity of an aqueous composition containing at least one associative thickener, when surfactants or additives containing surfactants, such as for example colorants, particularly at high levels, are added to the aqueous composition.