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:
Feb. 26, 2008
Filed:
Dec. 17, 2002
Klaus Dziwok, Freilassing, DE;
Inge Krämer, Freising, DE;
Norbert Schall, Forstern, DE;
Helmut Coutelle, Freising, DE;
Sabine Huth, Landshut, DE;
Alan Steinmetz, Louisville, KY (US);
Thadeus Schauer, Neuhengstett, DE;
Heinz Greisiger, Reutlingen, DE;
Mark Entenmann, Fellbach, DE;
Klaus Dziwok, Freilassing, DE;
Inge Krämer, Freising, DE;
Norbert Schall, Forstern, DE;
Helmut Coutelle, Freising, DE;
Sabine Huth, Landshut, DE;
Alan Steinmetz, Louisville, KY (US);
Thadeus Schauer, Neuhengstett, DE;
Heinz Greisiger, Reutlingen, DE;
Mark Entenmann, Fellbach, DE;
Sud-Chemie AG, Munich, DE;
Abstract
A description is given of water-soluble aminoplast ether copolymers of the following structural type: wherein Z is a glycoluril central unit, B is a radical of an essentially water-insoluble polymer and R1 is a radical of a hydrophilic organic compound. The ratio R1:B is selected within a range of about 1.5 to 4:1 and the overall mass of the water-soluble aminoplast ether copolymer is from about 2000 to 50 000 g/mol such that the copolymer is soluble in water and may be used as a dispersant for e.g. pigments in polar solvents, e.g. water.