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. 14, 2014
Filed:
Dec. 15, 2010
Audrey Cosyns, Mannheim, DE;
Arno Tuchbreiter, Charlotte, NC (US);
Robert Feuerhake, Mannheim, DE;
Jörg Nieberle, Trostberg, DE;
Audrey Cosyns, Mannheim, DE;
Arno Tuchbreiter, Charlotte, NC (US);
Robert Feuerhake, Mannheim, DE;
Jörg Nieberle, Trostberg, DE;
BASF SE, Ludwigshafen, DE;
Abstract
An aqueous coating formulation for tannin-containing substrates can include a substituted C-Cpolyalkyleneimine. Reacting a C-Cpolyalkyleneimine having a weight-average molecular weight of from 500 to 10,000 g/mol with a carboxylic acid derivative can produce the substituted polyalkyleneimine. The carboxylic acid derivative includes at least one Cto Calkyl group or Cto Calkenyl group. Substrates that contain tannin and are coated with this aqueous coating formulation exhibit outstanding resistance with respect to color runs and color strikethrough.