发明授权
US4868243A High impact resistant blends of thermoplastic polyesters and modified block copolymers 失效
热塑性聚酯和改性嵌段共聚物的高抗冲击混合物

High impact resistant blends of thermoplastic polyesters and modified
block copolymers
摘要:
A suber-toughened multiphase thermoplastic composition is provided by incorporating an effective amount of at least one functionalized, selectively hydrogenated alkenyl arene/conjugated diene block copolymer to which has been grafted an effective amount of carboxyl functional groups primarily in the alkenyl arene blocks thereof with poly (ethylene terephthalate). The carboxyl functional groups are present as carboxylic acids and their salts in an effective salt to acid ratio for super-toughening the composition. Additionally, the block copolymer phase has an effective phase size for super-toughening the composition.
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