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:
Jun. 12, 2012
Filed:
Sep. 26, 2011
Michael Debergalis, East Amherst, NY (US);
Larry Glen Snow, Leroy, NY (US);
Michael DeBergalis, East Amherst, NY (US);
Larry Glen Snow, Leroy, NY (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A photovoltaic module backsheet includes a polyester film having opposite first and second surfaces, and first and second fluoropolymer coatings on the first and second surfaces of the polyester film. The first and second fluoropolymer coatings each include fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride polymer blended with compatible adhesive polymer. The compatible adhesive polymer includes a backbone that is compatible with the fluoropolymer and pendant functional groups. The pendant functional groups are selected from carboxylic acid, sulfonic acid, aziridine, anhydride, amine, isocyanate, melamine, epoxy, hydroxy and mixtures thereof. The surfaces of the polyester film include functional groups on each surface that interact with the pendant functional groups of the compatible adhesive polymer in the first and second fluoropolymer coatings to promote bonding of the first and second fluoropolymer coatings to the respective surfaces of the polyester film.