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:
Dec. 06, 2011
Filed:
Oct. 30, 2007
Applicants:
Michael Joseph Michalczyk, Wilmington, DE (US);
Michael J. Witsch, Norwood, PA (US);
Inventors:
Michael Joseph Michalczyk, Wilmington, DE (US);
Michael J. Witsch, Norwood, PA (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 17/10 (2006.01); B32B 27/06 (2006.01); B32B 27/20 (2006.01); B32B 27/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a non-stick coating for glass cookware that has good adhesion and stain resistance while maintaining the abrasion resistance of the non-stick coating. The non-stick coating comprises a base coat that contains fluoropolymer and colloidal silica and an overcoat comprising one or more polymer layers containing inorganic filler film hardener.