Patent ID: 8835750

Claim:
An article for preparing a solar cell module which is a sandwich comprising: (a) a front support layer formed of light transmitting material, (b) at least one solar cell, (c) a transparent encapsulant laminate positioned adjacent to at least one surface of the solar cell(s), and (d) a backskin layer, wherein the transparent encapsulant laminate comprises: (A) two outer films layers of a first ionomer and a second ionomer, respectively, wherein the first ionomer and the second ionomer independently comprise a copolymer obtained by the copolymerization of ethylene and about 8 wt % to about 25 wt % of an ethylenically unsaturated C 3 -C 8 carboxylic acid, based on the total weight of the respective copolymer, and (B) at least one core layer of ethylene vinyl acetate between the two outer films layers of the first ionomer and the second ionomer; wherein the at least one core layer shows a DMA transition temperature of less than 40° C. at 1 Hz when not laminated to the outer film layers; and wherein the transparent encapsulant laminate shows a DMA transition temperature of greater than 65° C. at 1 Hz.