Aqueous paint compositions comprising polyether amides
First Claim
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1. An aqueous paint composition, useful as a protective coating and decorative coating, comprising:
- a) at least one aqueous polymer dispersion comprising the reaction product of at least one ethylenically-unsaturated monomer;
b) at least one inorganic pigment;
c) at least one polyether amide comprising the condensation product of;
i) at least one polycarboxylic acid; and
ii) at least one polyoxyalkylene amine; and
d) optionally at least one water dispersible crosslinking agent selected from the group consisting of polyisocyanates, polyaziridines, melamine-formaldehyde resins, polyepoxies and polycarbodiimides.
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Abstract
The present invention discloses aqueous paint compositions having enhanced adhesion characteristics. The compositions contain at least one water-soluble and/or water-dispersible polyether amide comprising the reaction product of polyoxyalkylene diamines and polycarboxylic acids. The dried compositions have improved adhesion characteristics making them particularly useful protective and/or decorative coatings on substrates including wood, metal, concrete, and plastic.
17 Citations
20 Claims
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1. An aqueous paint composition, useful as a protective coating and decorative coating, comprising:
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a) at least one aqueous polymer dispersion comprising the reaction product of at least one ethylenically-unsaturated monomer; b) at least one inorganic pigment; c) at least one polyether amide comprising the condensation product of; i) at least one polycarboxylic acid; and ii) at least one polyoxyalkylene amine; and d) optionally at least one water dispersible crosslinking agent selected from the group consisting of polyisocyanates, polyaziridines, melamine-formaldehyde resins, polyepoxies and polycarbodiimides. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for the preparation of aqueous paint compositions, useful as a protective coating and decorative coating, comprising the steps of:
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a) providing at least one aqueous-suspension comprising; i) at least one aqueous polymer dispersion comprising the reaction product of at least one ethylenically-unsaturated monomer; ii) at least one inorganic pigment; and b) providing at least one polyether amide comprising the condensation product of; i) at least one polyoxyalkylene diamine; and ii) at least one polycarboxylic acid;
then combining a) and b) to form said composition. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method for the preparation of a coated substrate, the method comprising the steps of:
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a) applying an aqueous paint composition on a substrate to form a wet-coated substrate, said composition comprising; i) at least one aqueous polymer dispersion comprising the reaction product of at least one ethylenically-unsaturated monomer; ii) at least one inorganic pigment; and iii) at least one polyether amide comprising the condensation product of; 1) at least one polycarboxylic acid; and 2) at least one polyoxyalkylene diamine;
then2) at least one polyoxyalkylene diamine;
thenb) drying the wet-coated substrate. - View Dependent Claims (20)
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Specification