Weatherable multilayer articles and method for their preparation
AssigneeSabic Innovative Plastic IP B.V.
InventorHua Wang
Life of this patent
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Abstract
Disclosed are weatherable multilayer articles comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one aromatic dicarboxylic acid, (ii) a second layer comprising a polymer comprising carbonate structural units, (iii) an adhesive layer comprising a polyurethane, and (iv) a substrate layer, wherein the coating layer is in contiguous superposed contact with the second layer, and the adhesive layer is in contiguous contact with the second layer and the substrate layer. Also disclosed is a method for making the multilayer article.
Claims64
A multilayer article comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from a 1,3-dihydroxybenzene and an aromatic dicarboxylic acid, (ii) a second layer comprising a polymer comprising carbonate structural units, (iii) an adhesive layer comprising an aliphatic thermoplastic polyurethane film, wherein the adhesive layer comprises a block copolymer comprising a thermoplastic polyurethane block and a block comprising structural units derived from styrene, and (iv) a substrate layer, wherein the coating layer is in contiguous contact with the second layer, and the adhesive layer is in contiguous contact with the second layer and the substrate layer.
The article of 1, wherein the coating layer comprises a 1,3-dihydroxybenzene selected from the group consisting of unsubstituted resorcinol, 2-methyl resorcinol, and mixtures thereof.
A method for making a multilayer article comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from a 1,3-dihydroxybenzene and an aromatic dicarboxylic acid, (ii) a second layer comprising a polymer comprising carbonate structural units, (iii) an adhesive layer comprises a block copolymer comprising a thermoplastic polyurethane block and a block comprising structural units derived from styrene, and (iv) a substrate layer, wherein the coating layer is in contiguous contact with the second layer, and the adhesive layer is in contiguous contact with the second layer and the substrate layer;
- said method comprising preparing an assembly of coating layer and second layer, and laminating said assembly adjacent to the adhesive layer coated onto the substrate layer.
A method for making a multilayer article comprising (i) a coating layer comprising a block copolyestercarbonate comprising structural units derived from a 1,3-dihydroxybenzene and an aromatic dicarboxylic acid, (ii) a second layer comprising a polymer comprising carbonate structural units, (iii) an adhesive layer comprises a block copolymer comprising a thermoplastic polyurethane block and a block comprising structural units derived from styrene, and (iv) a substrate layer, wherein the coating layer is in contiguous contact with the second layer, and the adhesive layer is in contiguous contact with the second layer and the substrate layer;
- said method comprising preparing an assembly of coating layer, second layer, and adhesive layer, and laminating said assembly to the substrate layer.
Dependencies are inferred from the claim text.