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    THERMOPLASTISCHES FORMGEDÄCHTNISMATERIAL
    10.
    发明公开
    THERMOPLASTISCHES FORMGEDÄCHTNISMATERIAL 审中-公开
    热塑性塑料

    公开(公告)号：EP3122534A1

    公开(公告)日：2017-02-01

    申请号：EP15709176.0

    申请日：2015-03-11

    Applicant: BASF SE

    Inventor： BOKERN, Stefan ,  PRISSOK, Frank ,  HARTWIG, Sebastian ,  PÖSELT, Elmar ,  GOESCHEL, Julia

    IPC: B29C61/00 ,  C08G18/48 ,  C08G18/32

    CPC classification number: B29C61/003 ,  B29C61/06 ,  B29K2075/00 ,  C08G18/244 ,  C08G18/3206 ,  C08G18/3215 ,  C08G18/4244 ,  C08G18/4825 ,  C08G18/4854 ,  C08G18/4879 ,  C08G18/6674 ,  C08G18/6681 ,  C08G18/758 ,  C08G18/7671 ,  C08G2280/00

    Abstract: The invention relates to a method for producing a molded body (FK), comprising producing a thermoplastic polyurethane, producing a molded body (FK*) from the thermoplastic polyurethane, heating the molded body (FK*) to a temperature below the temperature at which there is permanent deformability of the molded body (FK*) and above the switching temperature of the thermoplastic polyurethane, elongating the heated molded body (FK*) and thus obtaining a molded body (FK), and cooling the molded body (FK) to a temperature below the switching temperature of the thermoplastic polyurethane. The invention further relates to molded bodies that are or can be obtained in accordance with such a method. The thermoplastic polyurethane comprises a polyisocyanate composition, a chain extender, and a polyol composition having at least one bisphenol derivative selected from the group comprising bisphenol A derivatives having a molecular weight Mw of > 315 g/mol and bisphenol S derivatives having a molecular weight Mw of > 315 g/mol, wherein at least one of the OH groups of the bisphenol derivative is alkoxylated. The invention further relates to the use of a thermoplastic polyurethane to produce a molded body having a shape memory effect in a temperature from 20 °C to 120 °C.

    Abstract translation: 本发明涉及一种生产成型体（FK）的方法，包括制备热塑性聚氨酯，从热塑性聚氨酯制造成型体（FK *），将成型体（FK *）加热至低于 成型体（FK *）具有永久变形性，并且高于热塑性聚氨酯的开关温度，延长加热成型体（FK *），从而获得成型体（FK），并将成型体（FK）冷却至 温度低于热塑性聚氨酯的开关温度。 本发明还涉及根据这种方法得到或可以获得的成型体。 热塑性聚氨酯包括多异氰酸酯组合物，扩链剂和具有至少一种双酚衍生物的多元醇组合物，所述双酚衍生物选自分子量Mw> 315g / mol的双酚A衍生物和分子量Mw > 315g / mol，其中双酚衍生物的至少一个OH基团被烷氧基化。 本发明还涉及使用热塑性聚氨酯来制造在20℃至120℃的温度下具有形状记忆效应的成型体。

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