abstract |
Segmented thermoplastic copolyesters endowed with elastomeric properties, containing from 25% to 80% by weight of short-chain polyester units derived from dicarboxylic acids and a diol, and from 20 to 75% by weight of long-chain polyester units derived from dicarboxylic acids and poly(alkylene oxide)-glycols have a molecular weight lower than 300 and a C/0 ratio of from 1.8 to 4.3. |