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:
Mar. 03, 2020
Filed:
Jan. 08, 2016
Basf Coatings Gmbh, Muenster, DE;
Cathrin Corten, Unna, DE;
Dirk Eierhoff, Muenster, DE;
Britta Schnieders, Meppen, DE;
Nicole Freitag, Muenster, DE;
Heinz-Ulrich Grumpe, Muenster, DE;
Elisabeth Wessling, Emsdetten, DE;
Joerg Schwarz, Muenster, DE;
Mechthild Vienenkoetter, Ascheberg, DE;
Patrick Wilm, Ahlen, DE;
BASF Coatings GmbH, Muenster, DE;
Abstract
The invention relates to aqueous dispersions comprising multistage-prepared polymers, and also to coating material compositions comprising them, preparable by multistage polymerization of olefinically unsaturated monomers, using an emulsifier and a water-soluble initiator, under conditions of starved feed polymerization, and using particular monomer mixtures in the individual stages. The invention also relates to a pigmented aqueous basecoat material comprising the aqueous dispersion of the invention, to the use of the aqueous dispersion of the invention in aqueous basecoat materials for improving adhesion, to a process for producing a multicoat paint system on a substrate, and to a multicoat paint system produced in accordance with the stated process.