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:
Apr. 10, 2012
Filed:
Dec. 03, 2007
Applicants:
Albert Frank, Xanten, DE;
Daniela Leutfeld, Wesel, DE;
Dinah Grawe, Ratingen, DE;
Michaela Michelbrink, Rees, DE;
Inventors:
Albert Frank, Xanten, DE;
Daniela Leutfeld, Wesel, DE;
Dinah Grawe, Ratingen, DE;
Michaela Michelbrink, Rees, DE;
Assignee:
BYK-Chemie GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 19/04 (2006.01); C09D 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to the use of a polyamide prepared from at least one diamine and at least one dicarboxylic acid in a formulation for defoaming aqueous media. The invention also relates to defoamers for aqueous media that comprise such a polyamide.