| 摘要 |
<p>The present invention is directed to an aqueous polymer composition comprising a copolymer and water, the copolymer containing at least one hydrophilic base-neutralizable monomer and at least one hydrophobic ethylenically unsaturated monomer. The polymer composition is clear, and a film formed from the composition is insoluble in water once formed, and contains essentially no crosslinking. The polymer composition is formed by polymerizing the hydrophilic monomer and hydrophobic monomer in a non-aqueous solvent; forming an aqueous polymer dispersion from the non-aqueous polymer solution, and adding a volatile base to form a clear aqueous polymer composition. The volatile base can be added either before or after the solvent strip. <??>The polymer composition is useful as a replacement for thermoset resins, and can be used to stabilize emulsions to produce a surfactant- and colloid-free latex.</p> |
