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US 9,669,610 B2Granted
Use of aqueous polyurethane dispersions for laminating molded articles
AssigneeBASF SE
InventorsAxel Meyer, Karl-Heinz Schumacher, Oliver Hartz
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Abstract
The use of aqueous polyurethane dispersions is described for the lamination of moldings, where the polyurethane comprises units derived from at least one amorphous polyester polyol and comprises units derived from at least one polycarbonate.
Claims23
A method for producing a laminated molding, the method comprising:
- applying at least one aqueous polyurethane dispersion comprising at least one polyurethane to at least one of a foil and a molding, and
- laminating the foil to the molding,
- wherein the polyurethane consists essentially of at least one unit derived from an amorphous polyester polyol, at least one unit derived from a polycarbonate, and at least one organic diisocyanate or a mixture which comprises an organic isocyanate compound;
- and
- wherein the amorphous polyester polyol comprises reacted units of an aliphatic dicarboxylic acid having from 3 to 10 carbon atoms and an aromatic dicarboxylic acid in a molar ratio of from 0.5:1 to 2:1.
2 more elements
Dependencies are inferred from the claim text.