| abstract |
The method of forming latex composite polymer particles produces hydrolysis resistant composite polymer particles useful in aqueous latex compositions. Each latex composite polymer particle comprises a first phase, an optional intermediate phase, and at least one second phase, wherein the first phase comprises a vinyl ester oligomer or polymer and the second phase comprises an acrylic oligomer or polymer polymers, styrene oligomers or polymers, acrylic-styrene copolymers or mixtures thereof. The second phase and/or the intermediate phase at least partially encapsulate the first phase. The middle phase and the second phase are more hydrophobic than the first phase. Optionally, the first phase, the second phase and/or the intermediate phase may further comprise a crosslinking agent. |