Pharmaceutical Elastomeric Articles
    4.
    发明申请
    Pharmaceutical Elastomeric Articles 有权
    药物弹性制品

    公开(公告)号:US20130203865A1

    公开(公告)日:2013-08-08

    申请号:US13570920

    申请日:2012-08-09

    IPC分类号: C08F14/00

    摘要: Elastomeric polymers and compounded elastomers having reduced amounts of leachables and improved resistance to γ-irradiation sterilization suitable for pharmaceutical stopper and seal applications. These polymers and compounded elastomers maintain their physical performances upon being exposed to γ-irradiation over time and typical use conditions. The polymer is prepared by reacting a mixture of i) a C4 to C7 isoolefin monomer, ii) a styrene based monomer, and optionally iii) a C4 to C14 multiolefin monomer wherein the polymer contains 5 to 15 wt % of styrene derived units.

    摘要翻译: 弹性体聚合物和复合弹性体具有减少量的可浸出物和改善的抗γ-射线灭菌抗性,适用于药物塞和密封应用。 这些聚合物和复合弹性体随着时间和典型的使用条件暴露于γ射线时保持其物理性能。 聚合物通过使i)C 4 -C 7异烯烃单体,ii)苯乙烯基单体和任选地iii)C 4至C 14多烯烃单体的混合物反应制备,其中聚合物含有5至15重量%的苯乙烯衍生单元。

    Polymerizing unsaturated halides with carbamate type metallic catalyst
    5.
    发明授权
    Polymerizing unsaturated halides with carbamate type metallic catalyst 失效
    用氨基甲酸酯型金属催化剂聚合不饱和卤化物

    公开(公告)号:US4129702A

    公开(公告)日:1978-12-12

    申请号:US489716

    申请日:1974-07-18

    摘要: A process for the polymerization of vinyl halides and/or vinylidene halides which comprising contacting the vinyl halide and/or vinylidene halide in gaseous form with a catalyst composition comprising(a) at least one compound of a transition metal of Groups IVA to VIA of the Periodic Table of the Elements, as hereinbefore defined, and(b) at least one compound having the structure ##STR1## WHERE M is aluminum or zinc, n and m each is an integer not greater than one less than the valency of M, at least one of the groups R is a hydrocarbon group, R.sup.1 is hydrogen or a hydrocarbon group, and X is hydrogen or a monovalent organic group.

    摘要翻译: 一种用于乙烯基卤化物和/或亚乙烯基卤化物聚合的方法,其包括使气态的乙烯基卤化物和/或偏二卤乙烯与催化剂组合物接触,所述催化剂组合物包含(A)至少一种第IVA至VIA族的过渡金属化合物 如上文所定义的元素周期表和(B)具有结构的至少一种化合物(图像)M是铝或锌,n和m各自是不大于M的化合价的一个以下的整数, R中的至少一个是烃基,R 1是氢或烃基,X是氢或一价有机基团。