COATING COMPOSITIONS FOR IMPROVED BLOCK RESISTANCE

摘要

Embodiments include coating compositions, methods of coating a substrate, and substrates having at least one surface coated according to the methods of the present disclosure. The aqueous, substantially volatile organic compound (VOC)-free coating compositions includes an acrylic latex and a vinyl acetate-ethylene latex including from about 10 to about 90 weight percent of a vinyl acetate-ethylene polymer, based on total weight of acrylic polymer and vinyl acetate-ethylene polymer, having a Tg from about −20 to about 20 degrees Celsius; and from about 10 to about 90 weight percent of an acrylic polymer, based on the total weight of acrylic polymer and vinyl acetate-ethylene polymer, the acrylic polymer comprising, in polymerized form, at least one ethylenically unsaturated (meth)acrylic monomer and from about 0.01 to about 10 weight percent, based on total weight of the acrylic polymer, of an acetoacetate moiety containing monomer, where the acrylic polymer has a Tg of from about −20 to about 20 degrees Celsius.

主权项

1. An aqueous, substantially volatile organic compound (VOC)-free coating composition having the total amount of VOCs in the coating composition of less than 50 grams/liter, comprising:
(a) an acrylic latex and a vinyl acetate-ethylene latex, including:
from about 10 to about 90 weight percent of a vinyl acetate-ethylene polymer, based on total weight of acrylic polymer and vinyl acetate-ethylene polymer, having a Tg from about −20 to about 20 degrees Celsius; andfrom about 10 to about 90 weight percent of an acrylic polymer, based on the total weight of acrylic polymer and vinyl acetate-ethylene polymer, the acrylic polymer including, in polymerized form, at least one ethylenically unsaturated (meth)acrylic monomer, and in polymerized form at least one wet adhesion monomer, and (b) optionally at least one moiety selected from the group consisting of plasticizers and coalescing aids, where the acrylic polymer has a Tg of from about −20 to about 20 degrees Celsius.