| abstract |
Multiphase polymer mixtures contain (a) a polymer (A); (b) an A-B block copolymer (B) made up of a block A and of an elastic block B; (c) a B-C block copolymer (C) made of an elastic block B and of a block C; and (d) at least another polymer (D) which is different from (A), (B) and (C) and incompatible with polymer (A). Blocks A, B and C differ from each other, polymer (A) is compatible with block A and incompatible with block C, polymer (D) is compatible with block C and incompatible with block A, elastic block B has a glass transition temperature below +20 °C and blocks A, B and C are incompatible with each other. |