Patent ID: 9525091
Filing Date: 2016-12-20
CPC Classification: B32B,H01L,Y02E,Y10T

Claim Text:
1. A protective sheet for solar cells, comprising a base material and a thermoplastic resin layer laminated directly on at least one surface of the base material, the thermoplastic resin layer comprising a first layer laminated directly on the base material and a second layer laminated directly on the first layer, the first layer containing as a main component a copolymer of ethylene and at least one monomer unit selected from the group consisting of (meth)acrylic acid, (meth)acrylic acid ester, glycidyl (meth)acrylate and vinyl acetate, the second layer containing an olefin-based resin as a main component, wherein the total content of (meth)acrylic acid, (meth)acrylic acid ester, glycidyl (meth)acrylate, and vinyl acetate as a monomer unit in the copolymer of the first layer is 3.5 to 15 molar %.