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    • 2. 发明申请
    • METHOD FOR PRODUCING A SKIN LAYER OF A FLEXIBLE, ELASTOMERIC, THERMOSET, PHASE-SEPARATED POLYURETHANE MATERIAL
    • 用于生产柔性,弹性体,热稳定剂,相分离的聚氨酯材料的皮肤层的方法
    • US20130035466A1
    • 2013-02-07
    • US13581723
    • 2011-03-04
    • Koen VanlandschootJurgen MispelonBart HaeltermanGeert Snellings
    • Koen VanlandschootJurgen MispelonBart HaeltermanGeert Snellings
    • C08G18/18
    • C08G18/283C08G18/1825C08G18/2835C08G18/3203C08G18/3206C08G18/3271C08G18/3275C08G18/3287C08G18/329C08G18/4808C08G18/4837C08G18/4891C08G18/6688C08G18/755C08G18/792
    • The thermoset, phase-separated polyurethane material of the flexible skin layer is produced from a reactive mixture which is made of one or more isocyanate compounds and isocyanate reactive compounds which comprise one or more polyol compounds, flexibilisers, chain extenders and/or crosslinkers and amine-initiators. Apart from at least one crosslinking amine-initiator, these amine-initiators further comprise at least one extender amine-initiator which has a functionality of 2 and a molecular weight of less than 300 and which corresponds to formula (I) HR1N—R2—OH  (I) wherein: R1 is H or a cyclic or acyclic hydrocarbon chain, which is substituted or not and which comprises one or more hetero-atoms or not, R1 being preferably H or a C1 to C6 alkyl group; and R2 is a hydrocarbon chain which is substituted or not, which comprises a hetero-atom or not and which comprises a backbone linking the amino group with the hydroxyl group and containing at least two carbon atoms. The combination of the flexibiliser and the extender amine-initiator was found to have an increased effect on the flexural modulus and the softening temperature of the polyurethane material whilst maintaining the required mechanical properties at a satisfactory level.
    • 柔性表皮层的热固性相分离聚氨酯材料由反应性混合物制成,反应混合物由一种或多种异氰酸酯化合物和含有一种或多种多元醇化合物,柔性增粘剂和增链剂和/或交联剂和胺的异氰酸酯反应性化合物制成 引发剂。 除了至少一种交联胺引发剂之外,这些胺引发剂还包含至少一种官能度为2且分子量小于300的增量剂胺引发剂,其对应于式(I)HR1N-R2-OH (I)其中:R1是H或被取代或不被取代且包含一个或多个杂原子的环状或非环状烃链,R 1优选为H或C 1至C 6烷基; 并且R 2是被取代或未被取代的烃链,其包含杂原子或不包含连接氨基与羟基并且含有至少两个碳原子的主链。 发现增韧剂和增量剂胺引发剂的组合对聚氨酯材料的弯曲模量和软化温度具有增加的影响,同时保持所需的机械性能达到令人满意的水平。