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:
Oct. 07, 2008
Filed:
Jul. 21, 2003
Applicants:
Karlheinz Haubennestel, Wesel, DE;
Wolfgang Pritschins, Wesel, DE;
Ulrich Orth, Wesel, DE;
Inventors:
Assignee:
BYK-Chemie GmbH, Wesel, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/14 (2006.01); C08F 8/32 (2006.01); C08F 220/10 (2006.01); C08F 220/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to dispersing agents for pigments or extenders based on acrylic acid alkyl ester polymers, wherein at least part of the ester groups of the polymers is reacted to form acid amides, wherein the dispersing agent is obtainable by the aminolysis of ester groups of the polymers by means of amines, such as amino alkylenyl heterocycles. The invention also relates to the use of the dispersing agents according to the invention for the production of pigment concentrates and coating media, and to a process for producing the dispersing agents.