| 摘要 |
<p>Aqueous dispersions of water-insoluble latex polymer are prepared by swelling an initial water-insoluble latex polymer, prepared by emulsion polymerization of at least one ethylenically unsaturated monomer comprising no more than 2% by weight, based on the total weight of said ethylenically unsaturated monomer, of multi-ethylenically unsaturated monomer, with additional ethylenically unsaturated monomer comprising at least one monomer having at least two sites of ethylenic unsaturation. The additional monomer is subsequently polymerized within the swollen latex polymer. Compositions comprising the latex polymer may be used as coatings for flexible or rigid substrates, as caulks, or as roof mastics.</p> |
