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:
Oct. 31, 2000
Filed:
May. 07, 1999
Applicant:
Inventors:
William G Ruth, Morgantown, PA (US);
Stacy L Greth, Reading, PA (US);
Carryll A Seelig, Reading, PA (US);
Dean A Schreffler, Hamburg, PA (US);
Assignee:
Morton International Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C08L / ;
U.S. Cl.
CPC ...
525524 ; 427386 ; 428418 ; 525525 ; 525526 ;
Abstract
Provided are low temperature curing thermosetting epoxy powder coating compositions comprising at least one non-crystalline epoxy resin, at least one crystalline epoxy resin, a curing agent, and a cure catalyst. Coatings made from such powder compositions exhibit a substantial reduction in bubble entrapment, enough to prevent a visible haze from forming in the coating, when cured at low temperatures demanded by brass substrates, while the powders from which the coatings are made still exhibit good storage stability and melt-processability.