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US 2023/0167227 A1Published application
Aqueous dispersion of poly(ester-urethane) or of poly(ester-urethane-urea)
AssigneeArkema France
InventorsSylvain BEAUDRAIS, Christophe DEQUENNE
Life of this patent
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Abstract
The present invention relates to a poly(ester-urethane), to a poly(ester-urea-urethane), and also to aqueous dispersions of these and to their uses in aqueous coatings, adhesives or sealants, in particular as binder in paints or varnishes.
Claims25
A poly(ester-urethane), comprising:
- isocyanate functions;
- acid groups having a pKa of less than 3, optionally in partially or completely neutralized form;
- optionally saturated fatty chains and/or unsaturated fatty chains;
- ester and urethane bonds;
- optionally an amide bond;
- and
- optionally a urea bond.
4 more elements
A poly(ester-urea-urethane) comprising:
- acid groups having a pKa of less than 3, optionally in partially or completely neutralized form;
- optionally saturated fatty chains and/or unsaturated fatty chains;
- ester, urea and urethane bonds;
- and
- optionally an amide bond.
2 more elements
(canceled)
(canceled)
Dependencies are inferred from the claim text.