COATING COMPOSITIONS CAPABLE OF PRODUCING SURFACES WITH DRY-ERASE PROPERTIES

摘要

Disclosed are waterborne coating compositions that include: (a) a base-neutralized carboxylic acid functional polyacrylate; and (b) a water-miscible polyaziridine, in which the composition is substantially free of isocyanate functionality. Also disclosed are methods of using such compositions to produce a dry-erase surface and kits that include such compositions.

主权项

1. A waterborne coating composition comprising:
(a) a base-neutralized carboxylic acid functional polyacrylate having a calculated Tg of greater than 50° C. and that is a reaction product of reactants comprising:
(a1) at least 50% by weight of a hardening vinyl aromatic monomer, based on the total weight of the reactants;(a2) a plasticizing ethylenically unsaturated monomer that does not include carboxylic acid or hydroxyl groups; and(a3) a carboxylic-acid functional ethylenically unsaturated monomer; and (b) a water-miscible polyaziridine, wherein the coating composition is substantially free of isocyanate functionality.