Melt processable, bleach resistant, durable fibers having high elastic recovery and low stress relaxation from polyurethane elastomers
    11.
    发明授权
    Melt processable, bleach resistant, durable fibers having high elastic recovery and low stress relaxation from polyurethane elastomers 有权
    可熔融加工,耐漂白,耐久的纤维具有高弹性回复率和低聚氨酯弹性体的应力松弛

    公开(公告)号:US06825274B2

    公开(公告)日:2004-11-30

    申请号:US10347910

    申请日:2003-01-21

    IPC分类号: C08G1832

    摘要: The present invention provides melt processable, bleach resistant durable fibers having an elastic recovery above 50% after extension to 160% elongation and a stress relaxation below 50% after extension to 150% for 30 minuets which are formed from a soft polyurethane elastomer. This elastomer is comprised of (a) from 75 to 90% weight of a polydiene diol having up to about two terminal hydroxyl groups per molecule and a number average molecular weight between 500 and 20,000, (b) from 9 to 25% weight of a diisocyanate, and (c) from 0.8% to 5% weight of a chain extender which is a low molecular weight aliphatic diol, or a mixture of the low molecular weight aliphatic diol and from 0.1 to 4.0 mol % of a diamine wherein the hard segment content of the polyurethane elastomer is from about 10 to about 30% weight. The present invention further provides a polyurethane elastomer.

    摘要翻译: 本发明提供了可熔融加工的耐漂白耐久纤维,其在延伸至160%伸长率之后具有高于50%的弹性回复率,并且在由软聚氨酯弹性体形成的30分钟后延伸至150%后的应力松弛低于50%。 该弹性体包含(a)75至90重量%的每分子具有至多约两个末端羟基的聚二烯二醇,数均分子量为500至20,000,(b)9至25重量%的 二异氰酸酯和(c)0.8〜5重量%的作为低分子量脂肪族二醇的扩链剂,或低分子量脂肪族二醇和0.1〜4.0摩尔%的二胺的混合物,其中硬链段 聚氨酯弹性体的含量为约10至约30重量%。 本发明还提供一种聚氨酯弹性体。

    Melt processable, bleach resistant, durable fibers having high elastic recovery and low stress relaxation from polyurethane elastomers
    12.
    发明授权
    Melt processable, bleach resistant, durable fibers having high elastic recovery and low stress relaxation from polyurethane elastomers 有权
    可熔融加工,耐漂白,耐久的纤维具有高弹性回复率和低聚氨酯弹性体的应力松弛

    公开(公告)号:US06537661B1

    公开(公告)日:2003-03-25

    申请号:US10019626

    申请日:2002-02-20

    IPC分类号: D01F600

    摘要: The present invention provides melt processable, bleach resistant durable fibers having an elastic recovery above 50% after extension to 160% elongation and a stress relaxation below 50% after extension to 150% for 30 minutes which are formed from a soft polyurethane elastomer. This elastomer is comprised of (a) from 75 to 90% weight of a polydiene diol having up to about two terminal hydroxyl groups per molecule and a number average molecular weight between 500 and 20,000, (b) from 9 to 25% weight of a diisocyanate, and (c) from 0.8 to 5% weight of a chain extender which is a low molecular weight aliphatic diol, or a mixture of the low molecular weight aliphatic diol and from 0.1 to 4.0 mol % of a diamine wherein the hard segment content of the polyurethane elastomer is from about 10 to about 30% weight. The present invention further provides a polyurethane elastomer.

    摘要翻译: 本发明提供了可熔融加工的耐漂白耐用纤维,其在延伸至160%伸长率之后具有高于50%的弹性回复率,并且由软质聚氨酯弹性体形成后延伸至150%30分钟后的应力松弛低于50%。 该弹性体包含(a)75至90重量%的每分子具有至多约两个末端羟基的聚二烯二醇,数均分子量为500至20,000,(b)9至25重量%的 二异氰酸酯和(c)0.8〜5重量%的低分子量脂肪族二醇的扩链剂,或低分子量脂肪族二醇和0.1〜4.0摩尔%的二胺的混合物,其中硬链段含量 的聚氨酯弹性体的重量为约10至约30%。 本发明还提供一种聚氨酯弹性体。

    One phase melt radial polymer
    14.
    发明授权
    One phase melt radial polymer 失效
    单相融合径向聚合物

    公开(公告)号:US5266648A

    公开(公告)日:1993-11-30

    申请号:US766252

    申请日:1991-09-27

    申请人: Michael A. Masse

    发明人: Michael A. Masse

    IPC分类号: C08F297/04

    CPC分类号: C08F297/044 Y10S525/901

    摘要: A symmetric star block copolymer having and exhibiting one phase melt behavior comprising from about 3 to 30 arms, wherein each of said arm has a molecular weight of from about 20,000 to 35,000; said arms coupled with a suitable coupling agent; and wherein said arms comprises monomers of monoalkenyl aromatic hydrocarbon and conjugated diolefins; and wherein said monoalkenyl aromatic hydrocarbon is present in an amount of from about 20 to 40 wt % of the star block copolymer. Also disclosed is a process for preparing these one phase melt block copolymers.

    摘要翻译: 一种对称的星形嵌段共聚物,其具有并表现出单相熔融行为,其包含约3至30个臂,其中所述臂的每个分子量为约20,000至35,000; 所述臂与合适的偶联剂偶联; 并且其中所述臂包括单链烯基芳族烃和共轭二烯烃的单体; 并且其中所述单烯基芳族烃以所述星形嵌段共聚物的约20至40重量%的量存在。 还公开了制备这些一相熔体嵌段共聚物的方法。