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POLYMERIC COMPOSITION COMPRISING A THERMOPLASTIC ELASTOMER WITH BUTADIENE AND STYRENE BLOCKS AND A COMPATIBLE PLASTICISER
POLYMERIC COMPOSITION COMPRISING A THERMOPLASTIC ELASTOMER WITH BUTADIENE AND STYRENE BLOCKS AND A COMPATIBLE PLASTICISER
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机译：包含热塑弹性体，丁二烯和苯乙烯嵌段以及相容性增塑剂的聚合物组合物
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摘要
The invention relates to a polymeric composition comprising a) at least one block thermoplastic elastomer comprising at least one elastomer block and at least one thermoplastic block, the one or more elastomer blocks predominantly comprising units originating from butadiene, the one or more thermoplastic blocks being made up of units originating from one or more styrene monomers; b) at least one plasticiser selected from butadiene oligomers, provided that: b1) the molar ratio of 1,2-polybutadiene units in said plasticiser is included in a range ranging from 70% to 130% of the molar ratio of 1,2-polybutadiene units in the elastomer block of the thermoplastic elastomer, and the molar mass of the plasticiser is greater than 1500 g/mol, preferably greater than 2000 g/mol, and less than 50000 g/mol, or even b2) the molar ratio of 1,2-polybutadiene units in the plasticiser is less than 70% or greater than 130% of the molar ratio of 1,2-polybutadiene units in the elastomer block of the thermoplastic elastomer, and the molar mass of the plasticiser is greater than 4000 g/mol, preferably greater than 5000 g/mol, and less than 50000 g/mol.
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机译：本发明涉及一种聚合物组合物，其包含：a）至少一种嵌段热塑性弹性体，其包含至少一个弹性体嵌段和至少一个热塑性嵌段，该一种或多种弹性体嵌段主要包含源自丁二烯的单元，该一种或多种热塑性嵌段被制成由一种或多种苯乙烯单体衍生的单元; b）至少一种选自丁二烯低聚物的增塑剂，条件是：b1）所述增塑剂中1,2-聚丁二烯单元的摩尔比为1,2-摩尔比的70％至130％热塑性弹性体的弹性体嵌段中的聚丁二烯单元，并且增塑剂的摩尔质量大于1500 g / mol，优选大于2000 g / mol，并且小于50000 g / mol，甚至b2）的摩尔比增塑剂中的1,2-聚丁二烯单元小于热塑性弹性体的弹性体嵌段中1,2-聚丁二烯单元的摩尔比的70％或大于130％，并且增塑剂的摩尔质量大于4000 g / mol，优选大于5000 g / mol，且小于50000 g / mol。
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