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:
Jul. 11, 2006
Filed:
Sep. 14, 2002
Ulrike Hees, Mannheim, DE;
Sophia Ebert, Mainz, DE;
Ruediger Sens, Ludwigshafen, DE;
Friedrich-wilhelm Raulfs, Mannheim, DE;
Hans-guenter Bohrmann, Ludwigshafen, DE;
Lothar Schulz, Nussloch, DE;
Heinz Heissler, Frankenthal, DE;
Johann Mueller, Worms, DE;
Karl Siemensmeyer, Frankenthal, DE;
Guenter Renz, Freinsheim, DE;
Ulrike Hees, Mannheim, DE;
Sophia Ebert, Mainz, DE;
Ruediger Sens, Ludwigshafen, DE;
Friedrich-Wilhelm Raulfs, Mannheim, DE;
Hans-Guenter Bohrmann, Ludwigshafen, DE;
Lothar Schulz, Nussloch, DE;
Heinz Heissler, Frankenthal, DE;
Johann Mueller, Worms, DE;
Karl Siemensmeyer, Frankenthal, DE;
Guenter Renz, Freinsheim, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to polyurethane block copolymers of general formula (I) to (IV), in which the variables are defined as follows: A represents a polyurethane block, which contains at least one hydrophilic group, B is a hydrophobic polyurethane block, X, Xare hydrophilic end groups and n is a whole number from 1 to 20. The invention also relates to the production of cross-linkable dispersion additives from the inventive polyurethane block copolymers and to the use of said cross-linkable dispersion additives for colorant preparations, in particular inks for ink-jet printing.