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:
Jun. 12, 2007
Filed:
Jun. 19, 2003
Applicants:
Bernd Gobelt, Wesel, DE;
Alfred Bubat, Wesel, DE;
Albert Frank, Xanten, DE;
Karlheinz Haubennestel, Wesel, DE;
Inventors:
Bernd Gobelt, Wesel, DE;
Alfred Bubat, Wesel, DE;
Albert Frank, Xanten, DE;
Karlheinz Haubennestel, Wesel, DE;
Assignee:
BYK-Chemie GmbH, Wesel, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08L 83/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to the use of block copolymers as leveling agents for surface coatings, having a weight-average molecular weight of from 1000 to 100000. The leveling agent is a linear or branched block copolymer composed of a polysiloxane block and one or more blocks prepared from ethylenically unsaturated monomers by controlled free-radical addition polymerization. The invention also relates to coating compositions which comprise the leveling agent.