Process for the manufacture of polyurethane foam
    1.
    发明授权
    Process for the manufacture of polyurethane foam 失效
    制造聚氨酯泡沫的方法

    公开(公告)号:US4310632A

    公开(公告)日:1982-01-12

    申请号:US228120

    申请日:1981-01-26

    IPC分类号: C08G18/18 C08G18/14

    CPC分类号: C08G18/1883 C08G18/1858

    摘要: A process for making a polyurethane which comprises reacting an organic polyisocyanate with a higher molecular weight organic polyhydroxyl compound in the presence of a catalyst having the following formula: ##STR1## wherein X is sulfur or NH and n is a whole number from 2 to 6. Also used is a catalyst which is a combination of the above-mentioned catalyst and an organic tin compound.

    摘要翻译: 一种制备聚氨酯的方法,其包括使有机多异氰酸酯与较高分子量的有机多羟基化合物在具有下式的催化剂存在下反应:其中X为硫或NH,n为2至6的整数 也可以使用上述催化剂和有机锡化合物的组合的催化剂。

    Method for producing halogen-free reactive polyisobutene
    3.
    发明授权
    Method for producing halogen-free reactive polyisobutene 失效
    生产无卤素的反应性聚异丁烯的方法

    公开(公告)号:US06441110B1

    公开(公告)日:2002-08-27

    申请号:US09367194

    申请日:1999-08-06

    IPC分类号: C08F424

    摘要: A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 50 mol % and an average molecular weight Mn of 280-10000 dalton by the cationic polymerization in the liquid phase of isobutene or hydrocarbon mixtures comprising isobutene comprises polymerizing at from −30° C. to +40° C. in the presence of a heterogeneous polymerisation catalyst comprising one or more oxides of the elements of transition groups V and VI of the Periodic Table of the Elements or in the presence of a heterogeneous polymerization catalyst comprising one or more oxidic compounds of one or more elements of transition groups V and VI of the Periodic Table of the Elements supported on a non-zeolitic oxidic support material which is not an oxygen-containing zirconium compound, the catalyst not containing a technically effective amount of halogen.

    摘要翻译: 通过在异丁烯或包含异丁烯的烃混合物的液相中的阳离子聚合制备末端双键含量大于50mol%,平均分子量Mn为280-10000dalton的无卤活性聚异丁烯的方法包括聚合 在-30℃至+ 40℃下,在包含元素周期表的过渡基团V和VI的元素的一种或多种氧化物的非均相聚合催化剂的存在下,或在非均相聚合 催化剂包含负载在不是含氧锆化合物的非沸石氧化载体材料上的元素周期表的一个或多个过渡基团V和VI元素的一种或多种氧化化合物,该催化剂不含技术上 有效量的卤素。