Patent ID: 7807739

Claim:
An aqueous composition comprising: a metal-containing crosslinkable polymer derived from at least one ethylenically unsaturated monomer and 1 to 8 wt. % of a metal agent based on the weight of the metal-containing crosslinking polymer, the metal-containing crosslinkable polymer having a Tg of 10-40° C. and an acid number of 25-130; an acrylic polymer formed separately from the metal-containing crosslinking polymer, the acrylic polymer having a Tg of 30-100° C. and an acid number of 2-30; 0.1 to 8 wt. % of an epoxysilane based on the total solids weight of the aqueous composition; and 0.1 to 3 wt. % of an added nonionic surfactant based on the total solids weight of the aqueous composition, in addition to any surfactant used in the preparation of the metal-containing crosslinkable polymer and the acrylic polymer.