Adhesive for Solar Battery Protective Sheets

摘要

The present invention provides an adhesive for solar battery protective sheets, comprising a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound; and a hydroxyphenyltriazine based compound, wherein the acrylic polyol is obtainable by polymerizing polymerizable monomers, the polymerizable monomers comprise a monomer having a hydroxyl group and other monomers, and the other monomers comprise acrylonitrile and (meth)acrylic ester(s). The adhesive for solar battery protective sheets has satisfactory initial adhesion to a film, satisfactory adhesion property to a film after aging, and excellent weatherability and hydrolysis resistance over the long term. The present invention also provides a solar battery protective sheet which is obtainable by using the adhesive.

主权项

1. An adhesive for solar battery protective sheets, comprising a urethane resin reaction product of an acrylic polyol with an isocyanate compound; and a hydroxyphenyltriazine based compound,
wherein the acrylic polyol is the polymerization product of polymerizable monomers, the polymerizable monomers comprise a first monomer having a hydroxyl group and other monomers different from the first monomer, and the other monomers comprise acrylonitrile and (meth)acrylic ester(s).