| abstract |
Mixture comprising at least one synthetic material A selected from the group consisting of polyvinylbutyral and polysulfide, and at least one polyester B, polyester B being obtainable from 35 to 50 mol% of a dicarboxylic acid I, a 5 to 50 mol% of at least one diol II selected from the group consisting of 1,2-propanediol, 1,3-butanediol and 1,4-butanediol, and 2 to 20 mol% acetic acid as monocarboxylic acid III, providing the sum of mol% 100% mol. |