Hydrophobic polyurethane elastomer
    2.
    发明授权
    Hydrophobic polyurethane elastomer 有权
    疏水性聚氨酯弹性体

    公开(公告)号:US06211324B1

    公开(公告)日:2001-04-03

    申请号:US09327659

    申请日:1999-06-08

    IPC分类号: C08G1810

    摘要: A hydrophobic polyurethane elastomer is disclosed comprising an isocyanate terminated prepolymer comprising: i) from 30 to 90 percent by weight of an OH terminated homopolymer of butadiene having molecular weight ranging from 1000 to 4000 and an OH functionality of from 1.9 to 2.1; ii) from 10 to 70 percent by weight of an isocyanate and an asymmetric diol chain extender having a molecular weight ranging from 75 to 200.

    摘要翻译: 公开了一种疏水性聚氨酯弹性体,其包含异氰酸酯封端的预聚物,其包含:i)30至90重量%的OH封端的均聚物,其分子量范围为1000至4000,OH官能度为1.9至2.1; ii)10至70重量%的异氰酸酯和分子量为75至200的不对称二醇增链剂。

    Polyurethane polyolefins and prepolymers based on hydroxy functional
polybutadiene
    4.
    发明授权
    Polyurethane polyolefins and prepolymers based on hydroxy functional polybutadiene 有权
    聚氨酯聚烯烃和基于羟基官能聚丁二烯的预聚物

    公开(公告)号:US5990340A

    公开(公告)日:1999-11-23

    申请号:US223167

    申请日:1998-12-30

    CPC分类号: C08G18/69

    摘要: A di-hydroxy-functionalized linear non-crosslinked polyolefin is disclosed having no pendant chain-branched groups which is prepared by reacting 1,4-diacetoxy-2-butene with 1,5-cyclooctadiene in the presence of a catalyst comprising a ruthenium metal carbene complex, characterized in that the functionality number of said polyolefin as determined by NMR is 2.0 and the viscosity of said polyolefin ranges from about 800 to 16000 mPa.s @25.degree. C. at a number average molecular weight ranging from 2,600 to 6,500 g/mole. A prepolymer comprising the reaction of a polyisocyanate with the polyolefin is also disclosed.

    摘要翻译: 公开了一种二羟基官能化线性非交联聚烯烃,其不具有侧链支链基团,其通过使1,4-二乙酰氧基-2-丁烯与1,5-环辛二烯在催化剂存在下制备,所述催化剂包含钌金属 卡宾络合物,其特征在于通过NMR确定的所述聚烯烃的官能度数为2.0,所述聚烯烃的粘度在25℃至约800至16000mPa.s的数均分子量范围为2600至6,500g /痣。 还公开了包含多异氰酸酯与聚烯烃的反应的预聚物。