AQUEOUS COATING COMPOSITION AND PROCESS OF MAKING THE SAME

摘要

An aqueous coating composition capable of providing coating films with balanced properties of high hardness, high clarity, good water resistance, and good alcohol resistance; and a process of making such aqueous coating composition.

主权项

1. An aqueous coating composition, comprising,
(a) an aqueous emulsion polymer present in an amount of from 50 to 88% by weight based on total solids weight of the coating composition; (b) colloidal silica present in an amount of from 14 to 80%, by solids weight, based on the weight of the emulsion polymer; (c) an alkyl silane of Formula (I): wherein R1 is a saturated alkyl group with more than 4 carbon atoms; R2 is an alkoxy group with 1 to 3 carbon atoms, and n is an integer from 1 to 3; wherein the weight ratio of the alkyl silane to solids weight of the colloidal silica is from 0.11 to 0.23; and (d) water; wherein the content of volatile organic components in the coating composition is less than 150 g/L.