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Composition and process for preparation of thermoplastic polyurethanes (tpu based on a polybutadiene soft segment)
Composition and process for preparation of thermoplastic polyurethanes (tpu based on a polybutadiene soft segment)
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机译:热塑性聚氨酯的组合物和制备方法(基于聚丁二烯软链段的tpu)
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摘要
A process for making a thermoplastic polyurethane material comprising the steps of casting an NCO-terminated prepolymer with 1,4-butanediol to form a casting composition; extruding the casting composition to form at least one strand of a polyurethane elastomer; pelletizing the at least one strand of said polyurethane elastomer to form at least one pellet; and processing the at least one pellet to form a thermoplastic article.
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