| 摘要 |
Softness-modified polyvinyl acetal resins are obtained via hydrolyzing copolymers of vinyl acetate and C<SUB>9-15 </SUB>monocarboxylic acids, which contain from 5 to 60% by weight of tertiary vinyl ester, and subsequently acetalizing with one or more C<SUB>1-6 </SUB>aliphatic aldehydes. |
