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. 11, 1997
Filed:
Aug. 05, 1994
Stephan Schwarte, Emsdetten, DE;
Arnold Dobbelstein, deceased, late of M uster, DE;
Walter Lassmann, M uster, DE;
Susanne Piontek, M uster, DE;
J urgen Niemann, W urzburg, DE;
Klaus Eikelmann, M uster, DE;
Ulrich Poth, M uster, DE;
BASF Lacke & Farben, AG, Muenster-Hiltrup, DE;
Abstract
The invention relates to basecoats for the production of paint systems of the basecoat-clearcoat type, which comprise a water-thinnable polyacrylate resin obtainable by polymerizing in a first stage in an organic solvent ethylenically unsaturated monomers free from carboxyl groups and, after at least 80% by weight of these monomers have reacted, polymerizing in a second stage monomers containing carboxyl groups and neutralizing the polyacrylate resin obtained in this way.