Dow Global Technolgoies LLC

Fanny Deplace

Brian W Walther

Jeffrey E Bonekamp

Mustafa Bilgen

Thomas Allgeuer

John A Naumovitz

Claudia Hernandez

Lamy J Chopin, Iii

Felipe Martinez Barreneche

Hongming Ma

Kumar Nanjundiah

Angels Domenech

Antonio Manrique

Huiqing Zhang

Peter H R Sandkuehler

Lamy J Iii Chopin

Polyolefin photovoltaic (PV) backsheets comprise a polypropylene layer stabilized with (A) at least one hindered amine with 2,2,6,6-tetraalkylpiperdine or 2,2,6,6 -tetraakylpiperazinone, either or both in combination with a triazine moiety, (B) a thioester, and, optionally, (C) at least one hindered hydroxybenzoate, and/or (D) an ortho hydroxyl triazine compound. These PV backsheets exhibit a low flame spread index of <100 without the use of FR agents, and the polypropylene layer exhibits good weatherability while providing the required long term heat aging performance necessary for PV modules.

Polyolefin photovoltaic backsheet comprising a stabilized polypropylene layer

A multilayer film comprising a first layer comprising from greater than 0 to 100 percent by weight of an ethylene/&#x3b1;-olefin interpolymer composition (LLDPE), based on the total weight of the film composition; and a second layer comprising at least 5 percent by weight of the second layer, of an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having a density in the range of from 0.855 to 0.900 g/cm; and having a melt index (190&#xb0; C./2.16 kg) of greater than 200 g/10 min; and from 60 to 95 percent, by weight of the second layer, of EVOH is provided.

Multi-layer films and articles made therefrom

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Fanny Deplace