Adhesive compositions, layered articles and photovoltaic sheets
AssigneeBostik SA
InventorHengshi Zhou
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Abstract
An adhesive composition which comprises a resin component (A) comprising a polyester polyol, a hydrogenated epoxy, a silane, and an optional organic solvent; and a hardener component (B) comprising an aliphatic polyisocyanate and/or an alicyclic polyisocyanate; the adhesive composition being substantially free of aromatic rings. The polyester polyol is prepared by reacting a poly basic acid and a polyalcohol, and the polybasic acid comprises an aliphatic polybasic acid and/or an alicyclic polybasic acid. The polyester polyol has a glass transition temperature (Tg) in a range of from 0° C. to 10° C. The adhesive composition of the present invention has strong adhesion, excellent weather-resistance and yellowing-resistance.
Claims14
An adhesive composition comprising:
- a resin component (A) comprising a polyester polyol, a hydrogenated epoxy, a silane, and an optional organic solvent, wherein the polyester polyol is prepared by reacting a polybasic acid and a polyalcohol, the polybasic acid comprises an aliphatic polybasic acid and/or an alicyclic polybasic acid, and wherein the polyester polyol has a glass transition temperature (Tg) in a range of from 0° C. to 10° C.;
- and
- a hardener component (B) comprising an aliphatic polyisocyanate and/or an alicyclic polyisocyanate;
- wherein the adhesive composition is substantially free of aromatic rings.
Dependencies are inferred from the claim text.