abstract |
objectnThe invention relates to polyvinyl acetals with unsaturated acetal units, obtainable by means ofnAcetalization of partially hydrolyzed or fully hydrolyzed vinyl ester polymers,nwith ≧ 50nMol% of vinyl alcohol units with one or more, saturated,naliphatic aldehydes and one or more unsaturated,nacyclic, aliphatic aldehydes, the aldehydes also innForm whose hemiacetals and acetals can be used. |