| 摘要 |
Additive for coatings comprises a silane-containing polyvinyl alcohol (I) produced by 75-100% hydrolysis of a copolymer comprising: (a) vinyl C1-C18 alkanoate ester units, including 1-30 mole% 1-(C1-C6 alkyl)vinyl C1-C6 alkanoate units; (b) 0.01-10 mole% silane-containing ethylenically unsaturated monomer units; and optionally (c) comonomer units. |
