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US 12,662,608 B2Granted
Waterborne coating composition
AssigneeArkema France
InventorsChenyan Bai, Yin Xue, Xinhong Wang, Wenxin Zhang
Life of this patent
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Abstract
A waterborne coating composition, comprising (a) a first polyurethane dispersion comprising a first polyurethane having a Tg of 5° C. to 20° C., (b) a second polyurethane dispersion comprising a second polyurethane having a Tg of −40° C. to −60° C., and (c) a polyacrylic emulsion comprising an acrylic (co) polymer having a Tg of −40° C. to −20° C., is provided. A method for preparing a laminated material with the waterborne coating composition, and a laminated material prepared therefrom are also provided.
Claims10
A waterborne coating composition, comprising:
- (a) a first polyurethane dispersion, comprising a first polyurethane having a Tg of 5° C. to 20° C.,
- (b) a second polyurethane dispersion, comprising a second polyurethane having a Tg of −40° C. to −60° C., and
- (c) a polyacrylic emulsion, comprising an acrylic polymer or copolymer having a Tg of −40° C. to −20° C.,
- wherein the first polyurethane is prepared by reacting at least one first monomeric diisocyanate with at least one first polyol and at least one first internal emulsifier;
- wherein the second polyurethane is prepared by reacting at least one second monomeric diisocyanate with at least one second polyol and at least one second internal emulsifier;
- and
- wherein the acrylic polymer or copolymer is a copolymer derived from at least one acrylic or methacrylic monomer and at least one styrenic monomer.
4 more elements
Dependencies are inferred from the claim text.