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:
Apr. 01, 2003
Filed:
May. 29, 2001
Applicant:
Inventors:
Kamlesh Pai Panandiker, Excelsior, MN (US);
John Michael Bronk, Woodstock, IL (US);
Franklin Paul Spitler, Algonquin, IL (US);
Assignee:
McWhorter Technologies Inc., Carpentersville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D / ; C08L 7/506 ; C08G 1/842 ; C08G 1/879 ; C08G 1/880 ;
U.S. Cl.
CPC ...
C09D / ; C08L 7/506 ; C08G 1/842 ; C08G 1/879 ; C08G 1/880 ;
Abstract
The present invention relates to powder coating compositions which can be cured at low temperatures. The powder coating composition of the invention include a unique combination of a branched oligoester polyol and uretdione crosslinking agent which when cured results in a coating binder with desirable hardness, flexibility, solvent resistance, corrosion resistance, weatherability and gloss.