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:
Sep. 16, 2014
Filed:
Mar. 07, 2008
Thomas J. Blong, Woodbury, MN (US);
Robert F. Babb, Easley, SC (US);
Peter J. Harrison, Hudson, WI (US);
Pamela A. Percha, Woodbury, MN (US);
Thomas J. Blong, Woodbury, MN (US);
Robert F. Babb, Easley, SC (US);
Peter J. Harrison, Hudson, WI (US);
Pamela A. Percha, Woodbury, MN (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
A solar panel backside film used in solar panel constructions. The film comprises a PET film having a net peak area as measured by differential scanning calorimetry of about −15 J/g to about 5 J/g measured from the endpoint of the glass transition (Tg) up to 230° C., and an additive to opacify the PET film. A polymeric layer is adhered to the PET film to create a solar panel backside film. The solar panel backside film generally has a reflectivity of 50% or greater at a point in the visible range of light. Additionally, the solar panel backside film, when applied to a solar panel and exposed to 2000 hours at 85° C. and 85% relative humidity, does not result in exfoliation or visible cracks in the PET film.