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:
Nov. 09, 1999
Filed:
Apr. 22, 1997
Applicant:
Inventors:
Oswald Wilmes, Koln, DE;
Lothar Kahl, Bergisch Gladbach, DE;
Bernd Klinksiek, Bergisch Gladbach, DE;
Christian Wamprecht, Neuss, DE;
Manfred Bock, Leverkusen, DE;
Klaus Nachtkamp, Dusseldorf, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
524839 ; 528 45 ; 528 71 ; 528 73 ; 5285 / ; 5285 / ; 524591 ; 524840 ; 523220 ; 523315 ;
Abstract
The present invention relates to a process for the production of aqueous dispersions which form powder coatings at room temperature, have an average particle size of 0.1 to 10 .mu.m, contain polyols and blocked polyisocyanate crosslinking agents, and, after stoving, yield coatings with improved water and solvent resistance, in particular on metallic substrates.