| 单词 | polyvinyl acetal |
| 释义 | polyvinyl acetal Chem. 1. any of the class of thermoplastic resins derived by the condensation of an aldehyde with polyvinyl alcohol. 2. the slightly yellow, water-insoluble resin produced from partially hydrolyzed polyvinyl acetate and formaldehyde: used chiefly in the manufacture of lacquers, photographic film, and adhesives. [1930-35] |
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