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.

Date of Patent:
Feb. 19, 2019

Filed:

Jul. 26, 2016
Applicant:

Basf Coatings Gmbh, Muenster-Hiltrup, DE;

Inventors:

Timothy S. December, Rochester Hills, MI (US);

Dominik Wechsler, Kingston, CA;

Charles H. Honeyman, Toronto, CA;

Adam M. Ozvald, Kingston, CA;

Assignee:

BASF COATINGS GmbH, Muenster-Hiltrup, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 187/00 (2006.01); C09D 133/08 (2006.01); B32B 27/40 (2006.01); C08G 18/54 (2006.01); C08G 18/76 (2006.01); C08G 18/80 (2006.01); C08G 18/16 (2006.01); C08G 18/24 (2006.01); C09D 175/04 (2006.01); C08G 18/40 (2006.01); C08K 5/3492 (2006.01); C08L 61/28 (2006.01);
U.S. Cl.
CPC ...
C09D 187/005 (2013.01); B32B 27/40 (2013.01); C08G 18/163 (2013.01); C08G 18/166 (2013.01); C08G 18/242 (2013.01); C08G 18/40 (2013.01); C08G 18/544 (2013.01); C08G 18/765 (2013.01); C08G 18/7671 (2013.01); C08G 18/8022 (2013.01); C08G 18/8077 (2013.01); C09D 133/08 (2013.01); C09D 175/04 (2013.01); C08K 5/34922 (2013.01); C08L 61/28 (2013.01);
Abstract

Shelf-stable low temperature cure coating compositions that include a hydroxy-functional resin, a crosslinking agent, and a catalyst that does not catalyze the crosslinking reaction between hydroxy-functional resin and the crosslinking agent contained therein, but instead between a hydroxy-functional resin and a crosslinking agent contained in a different low temperature cure coating composition. In addition, low temperature cure composite coatings that include: a basecoat of a low temperature cure coating composition containing a first hydroxy-functional resin, a first crosslinking agent, and a first catalyst; and a topcoat containing a second hydroxy-functional resin, a second crosslinking agent, and a second catalyst, where the first catalyst migrates into the topcoat from the basecoat and catalyzes the reaction between the second hydroxy-functional resin and crosslinking agent, and the second catalyst migrates into the basecoat from the topcoat and catalyzes the reaction between the first hydroxy-functional resin and crosslinking agent.


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