Dispersed resins for use in coating compositions

Details Dispersed resins for use in coating compositions Dispersed resins for use in coating compositions

C - Chemistry, Metallurgy

09

D

C09D 167/08 (2006.01) C09D 5/02 (2006.01) C09D 7/12 (2006.01) C09D 193/04 (2006.01) C09K 3/18 (2006.01)

Patent

CA 2310497

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 cross- linking 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°.

Une composition aqueuse apte à revêtir un substrat est décrite. La composition comprend un produit réactionnel de (i) au moins un acide carboxylique contenant 3 à 22 atomes de carbone; (ii) au moins une amide aliphatique ou une amide aromatique polyfonctionnelle substituée ou non substituée, contenant 2 à 25 atomes de carbone; (iii) un agent de réticulation complexe composé d'un métal des groupes Ia, Ia, IIIa ou IVa des première et seconde rangées des métaux de transition de la table périodique des éléments; (iv) une résine ou une huile, le rapport pondéral entre la résine ou l'huile et la somme de (i), (ii) et (iii) étant d'au moins 2,5:1; et (v) un épaississant, une couche sèche continue obtenue par application de la composition sur du cèdre rouge de l'Ouest permettant un angle de contact avec l'eau ne dépassant 80 DEG .

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