Aqueous dispersions for coating compositions
AssigneeBASF SE
InventorsJoseph P. Borst, Sergio E Balatan, Walter H. Ohrbom, Robert D. Weise, Davide J. Law
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Abstract
The invention provides curable coating compositions comprising an aqueous dispersion comprising a stabilizing resin (P1) and a compound (P2) comprising functional groups reactable with a crosslinking agent. Compound (P2) is dispersed into stabilizing resin (P1). The coating compositions of the invention may further comprise an optional crosslinking agent (P3) which may or may not be dispersed into stabilizing resin (P1). In a particularly preferred embodiment, both the stabilizing resin (P1) and compound (P2) will comprise functional groups which are carbamate or are convertible to carbamate.
Claims16
An aqueous dispersion comprising
- a stabilizing resin (P1) having a number average molecular weight of from 5000 to 50,000 which is the free radical polymerization reaction product of a monomer mixture in an organic solution, wherein said monomer mixture comprises one or more hydrophobic ethylenically unsaturated monomers and one or more hydrophilic ethylenically unsaturated monomers, and
- a compound (P2) comprising a plurality of functional groups (i) containing an active hydrogen group and which are reactable with a crosslinking agent,
- wherein compound (P2) is dispersed into stabilizing resin (P1).
Dependencies are inferred from the claim text.