Abstract: A copolymer additive comprising water and a copolymer prepared from an acetoacetamide functional monomer and a ureido monomer is stable in a wide range of pH values and a coating composition comprising such copolymer additive can provide coating films made therefrom with good formaldehyde abatement performance and good resistance to yellowing.

Abstract: An aqueous polymer composition comprises (A) a specific emulsion polymer comprising structural units of a cycloalkyl (meth)acrylate, structural units of an acetoacetoxy or acetoacetamide functional monomer, and structural units of a phosphorous acid monomer, a salt thereof, or mixtures thereof; and (B) a specific amount of a waterborne resin comprising at least one fatty acid ester segment and having a number average molecular weight of 20,000 g/mol or less, based on the total dry weight of the emulsion polymer and the waterborne resin. A coating composition comprising such aqueous polymer composition provides coatings made therefrom with improved anti-corrosion property.

Abstract: Described is a curable composition, and particularly a two-component composition comprising a silane modified polymer; an epoxy resin terminated with epoxy terminal group; wherein the composition further comprises a hardening agent and a compatibilizer which has at least one silane group and at least one epoxy terminal group. The curable composition exhibits enhanced adhesion strength and good elongation at break. A method for applying the curable composition on the surface of a substrate is also provided.

Abstract: Described is a curable composition, and particularly a two-component composition comprising a silane modified polymer; an epoxy resin terminated with epoxy terminal group; wherein the composition further comprises a hardening-compatibilizing agent which has at least one silane group and at least two amine groups. The curable composition exhibits enhanced adhesion strength and good elongation at break. A method for applying the curable composition on the surface of a substrate is also provided.

Abstract: Described is a curable composition comprising a silane modified polymer; an epoxy resin terminated with epoxy terminal group; a compatibilizer having at least one silane group and at least one epoxy terminal group or at least one nitrogen-containing groups; and optionally a hardening agent; wherein the composition further optionally comprises at least one of a nitrogen-containing unsaturated heterocyclic compound catalyst and a nitrogen-containing phenol catalyst. The curable composition exhibits high hermeticity, fast curing speed, quick adhesion build up, dry surface and strong adhesion strength. A method for applying the curable composition on the surface of a substrate is also provided.