Thermoplastic polyurethanes
    2.
    发明授权
    Thermoplastic polyurethanes 有权
    热塑性聚氨酯

    公开(公告)号:US08507633B2

    公开(公告)日:2013-08-13

    申请号:US12293103

    申请日:2007-04-11

    IPC分类号: C08G18/00

    摘要: A process for the preparation of thermoplastic polyurethane by reacting (a) isocyanates with (b) compounds reactive toward isocyanates and having a molecular weight (Mw) of from 500 to 10 000 g/mol and (c) chain extenders having a molecular weight of from 50 to 499 g/mol, if appropriate in the presence of (d) catalysts and/or (e) conventional additives, wherein the chain extender mixture consisting of a main chain extender (c1) and one or more co-chain extenders (c2) is used and the thermoplastic polyurethane prepared has a rigid phase fraction of greater than 0.40, the rigid phase fraction being defined by the following formula: rigid ⁢ ⁢ phase ⁢ ⁢ fraction = { ∑ x = 1 k ⁢ [ ( m KVx / M KVx ) * M Iso + m KVx ] } / m ges with the following meanings: MKVx: molar mass of the chain extender x in g/mol mKVx: mass of the chain extender x in g MIso: molar mass of the isocyanate used in g/mol mges: total mass of all starting materials in g k: number of chain extenders.

    摘要翻译: 一种通过使(a)异氰酸酯与(b)对异氰酸酯具有反应性并且分子量(Mw)为500至10000g / mol的化合物和(c)分子量为 在(d)催化剂和/或(e)常规添加剂的存在下,如果合适,其为50至499g / mol,其中由主链延长剂(c1)和一种或多种共扩链剂( c2),所制备的热塑性聚氨酯具有大于0.40的刚性相分数,刚性相分数由下式定义:刚性相凝固分数= {Σx = 1 k [(m KVx / M KVx)* M Iso + m KVx]} / m ges,具有以下含义:MKVx:扩链剂的摩尔质量x(g / mol)mKVx:扩链剂的质量(以g计)MIso:所用异氰酸酯的摩尔质量 以g / mol mges为单位:所有原料的总质量(gk):增链剂数量。

    Thermoplastic polyurethanes
    3.
    发明授权
    Thermoplastic polyurethanes 失效
    热塑性聚氨酯

    公开(公告)号:US08138299B2

    公开(公告)日:2012-03-20

    申请号:US11912403

    申请日:2006-04-25

    IPC分类号: C08G18/00

    摘要: Thermoplastic polyurethanes which have a hardness of from 50 Shore A to 80 Shore A and are based on (b) polyester diols, wherein a polyester diol (b1) based on butane-1,4-diol and at least one further diol having at least 5 carbon atoms and a polyester diol (b2) based on butane-1,4-diol and at least one further diol having two or three carbon atoms are present as (b) polyester diols.

    摘要翻译: 具有50肖氏A至80肖氏A的硬度的热塑性聚氨酯,其基于(b)聚酯二醇,其中基于丁烷-1,4-二醇的至少一种至少一种另外的二醇的聚酯二醇(b1) 存在作为(b)聚酯二醇的基于丁烷-1,4-二醇和至少一种具有2或3个碳原子的其它二醇的聚酯二醇(b2)和(b2)聚碳酸酯。

    Thermoplastic Polyurethanes
    4.
    发明申请
    Thermoplastic Polyurethanes 失效
    热塑性聚氨酯

    公开(公告)号:US20080194789A1

    公开(公告)日:2008-08-14

    申请号:US11912403

    申请日:2006-04-25

    IPC分类号: C08G18/02

    摘要: Thermoplastic polyurethanes which have a hardness of from 50 Shore A to 80 Shore A and are based on (b) polyester diols, wherein a polyester diol (b1) based on butane-1,4-diol and at least one further diol having at least 5 carbon atoms and a polyester diol (b2) based on butane-1,4-diol and at least one further diol having two or three carbon atoms are present as (b) polyester diols.

    摘要翻译: 具有50肖氏A至80肖氏A的硬度的热塑性聚氨酯,其基于(b)聚酯二醇,其中基于丁烷-1,4-二醇的至少一种至少一种另外的二醇的聚酯二醇(b1) 存在作为(b)聚酯二醇的基于丁烷-1,4-二醇和至少一种具有2或3个碳原子的其它二醇的聚酯二醇(b2)和(b2)聚碳酸酯。