US 6,388,002 B1Granted

Dispersed resins for use in coating compositions

AssigneeRhodia Inc.

InventorsGary Baker, John William Prince

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Abstract

An aqueous composition suitable for coating a substrate is described. The composition comprises a reaction product of (i) at least one carboxylic acid containing from 3 to 22 carbon atoms; and (ii) at least one unsubstituted or substituted aliphatic amine or polyfunctional aromatic amine, containing from 2 to 25 carbon atoms; (iii) a complex crosslinking agent of a metal from groups Ia, IIa, IIIa or IVa of the first and second rows of the transition metals from the Periodic Table of Elements; (iv) a resin or oil, the weight ratio of the resin or oil to the sum of (i), (ii) and (iii) being at least 2.5:1; and (v) a thickener, a continuous dry layer obtained by applying the composition to Western Red Cedar providing a contact angle with water not exceeding 80°.

Claims17

Dependent claims

An aqueous composition which comprises a reaction product of:

(i) at least one carboxylic acid containing from 3 to 22 carbon atoms:
and
(ii) at least one aliphatic amine or polyfunctional aromatic amine, containing from 2 to 25 carbon atoms, which is unsubstituted or substituted by halogen, hydroxy or alkyl, or an amide of the formula:
R—C(O)—NR1R2, where R, R1, and R2 each independently represent hydrogen or an alkyl group of 1 to 5 carbon atoms optionally substituted by halogen, hydroxy or alkyl;
and, as separate components,
(iii) a complex crosslinking agent comprising zirconium;
(iv) a resin or oil, wherein the weight ratio of the resin or oil to the sum of (i), (ii), and (iii) is at least 2.5:1;
and
(v) a thickener,
wherein said composition, when applied to wood, results in a continuous dry layer providing a contact angle with water not exceeding 80°.

7 more elements

Dependencies are inferred from the claim text.