| 摘要 |
<p>A coating composition comprising: (a) A graft copolymer, having surfactant properties, comprising the reaction product of (i) a vinyl copolymer comprising vinyl chloride, a vinyl carboxylate ester, and a source of hydroxyl groups, such that the hydroxyl content prior to reaction is about 0.5 to about 8% by weight of the vinyl copolymer and of which about 1 to about 75% of said hydroxyl groups have been reacted with (ii) an anhydride copolymer comprising the reaction product of an aromatic monomer and a dicarboxylic acid anhydride, such that the graft copolymer has a molecular weight of about 2,000 to about 30,000, and a vinyl copolymer/anhydride copolymer weight ratio of about 20 to about 2, of which a sufficient number of carboxyl groups have been hydrolyzed to produce surfactant properties;
<UnorderedLists id="ula01" listStyle="none"><ListItem>(b) a dispersible powder,</ListItem><ListItem>(c) optionally, other hard resins,</ListItem><ListItem>(d) optionally, a rubbery polymer,</ListItem><ListItem>(e) optionally, a supplemental surfactant,</ListItem></UnorderedLists>
all mixed in an organic solvent.</p> |
