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:
Jul. 21, 2026
Filed:
May. 28, 2021
Endurance Solar Solutions Inc., Nashua, NH (US);
Ruofei Zhao, Shanghai, CN;
Kurt Van Durme, Geleen, NL;
Robert Janssen, Geleen, NL;
Alessandro Gualdi, Geleen, NL;
Robin Daenen, Geleen, NL;
ENDURANCE SOLAR SOLUTIONS INC., Nashua, NH (US);
Abstract
The present invention relates to a photovoltaic module backsheet comprising, in order: photovoltaic module backsheet comprising a functional layer and a weather-resistant layer, wherein the backsheet is free of fluorinated polymers, characterized in that: i) the functional layer comprises a blend of polyethylene and a polyethylene copolymer, wherein at least 50 wt. % of the functional layer is polyethylene; and ii) the weather-resistant layer comprises, a first sub-layer facing the functional layer and a second sub-layer, wherein a) each of the first sub-layer and the second sub-layer comprise at least 50 wt. % polypropylene; and b) the second sub-layer has a lowest glass transition temperature (T) below −40° C. The present invention also relates to a process for producing the backsheet and a photovoltaic module comprising the backsheet according to the present invention.