为了生产热塑性聚氨酯弹性体的）有机二异氰酸酯，b）具有多羟基化合物的分子量为500至8000，c）具有增链剂的60分子量〜400在d）催化剂的存在下，并且如果合适，E）助剂和/或f）的添加剂在 的60的温度〜250℃转化成2个的反应步骤，其中，在第一反应阶段混合，连续的结构部件，将反应混合物到载体上，优选由热塑性材料制成的传送带，施加并使其在反应温度下，以固化反应，然后在 在第二反应阶段熔化凝固反应混合物在挤出机中，将反应导致端部。

For the preparation of thermoplastic polyurethane elastomers,

• a) organic diisocyanates,
• b) polyhydroxy compounds having molecular weights of 500 to 8000 and
• c) chain extenders having molecular weights of 60 to 400 in the presence of
• d) catalysts and optionally
• e) auxiliaries and / or
• f) is reacted additives at temperatures of 60 to 250 ° C in two reaction stages, where the formative components continuously mixed in the first reaction stage, the reaction mixture onto a support, preferably a conveyor belt made of thermoplastic material applied, and until the solidification at the reaction temperature to react leaves and then in the second reaction stage, the reaction mixture solidified melted in an extruder and the reaction is taken to completion.