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2 ELASTOMERIC BLOCK COPOLYMERS WITH A STAR-SHAPED MOLECULAR ARCHITECTURE SAID STAR-SHAPED MOLECULAR ARCHITECTURE HAVING AT LEAST TWO DIFFERENT STAR ARMS
2 ELASTOMERIC BLOCK COPOLYMERS WITH A STAR-SHAPED MOLECULAR ARCHITECTURE SAID STAR-SHAPED MOLECULAR ARCHITECTURE HAVING AT LEAST TWO DIFFERENT STAR ARMS
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机译：2种星形结构的弹性嵌段共聚物星形结构的星形结构至少有两个不同的星形臂
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摘要
The present invention relates to an elastomer block copolymer having a star-shaped molecular structure, wherein said star-like molecular structure has at least two different star arms. At least one star arm comprises at least one block A having units of at least one vinyl aromatic monomer incorporated by polymerization and forming a hard phase; Optionally at least one block B having at least one different diene monomer and forming a first elastomeric (soft) phase; And at least one elastomer block B / A comprising units of both at least one diene as well as at least one vinyl aromatic monomer incorporated by polymerization and forming a soft phase. The invention also relates to a process for the preparation of the elastomeric block copolymers according to the invention, to the use of the elastomeric block copolymers according to the invention for the production of moldings such as films, foams, thermoformed articles and extrudates, the use as an adhesive layer in a multilayer film, the use as a sealing, the use as an adhesion promoter or thermoplastic component in a wood-plastic composite, the use as a hot-melt adhesive component, For use as impact-modifying elastomers, or for promoting compatibility, and also for the production of films, foams, thermoformings, extrudates, tubes or extruded profiles made of at least one elastomeric block copolymer according to the invention .
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