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。

    FUNCTIONALIZED POLYMERS AND IMPROVED TIRES THEREFROM
    5.
    发明申请
    FUNCTIONALIZED POLYMERS AND IMPROVED TIRES THEREFROM 有权
    功能化的聚合物和改进的轮胎

    公开(公告)号:US20090203844A1

    公开(公告)日:2009-08-13

    申请号:US12404925

    申请日:2009-03-16

    IPC分类号: C08L9/06 C08L9/00

    摘要: A method of forming a functionalized polymer, the method comprising reacting a living polymer with a compound defined by the formula where R5 includes a monovalent organic group, R6 independently includes a monovalent organic group, each R7 independently includes hydrogen or a monovalent organic group, each R8 independently includes hydrogen or monovalent organic group, R9 includes a monovalent organic group, M is silicon or tin, and x includes an integer from about 2 to about 10, where R5 and R6 may optionally each independently be alkoxy groups, and where R7, R8, and R9 are non-Zerewitinoff organic groups.

    摘要翻译: 一种形成官能化聚合物的方法,所述方法包括使活性聚合物与下式定义的化合物反应:其中R 5包括一价有机基团,R 6独立地包括一价有机基团,每个R 7独立地包括氢或一价有机基团, R8独立地包括氢或一价有机基团,R9包括一价有机基团,M是硅或锡,x包括约2至约10的整数,其中R 5和R 6可任选地各自独立地为烷氧基,并且其中R 7, R8和R9是非Zerewitinoff有机基团。

    Process for desolventizing low molecular weight diene polymers
    6.
    发明授权
    Process for desolventizing low molecular weight diene polymers 有权
    脱溶剂低分子量二烯聚合物的方法

    公开(公告)号:US06433105B1

    公开(公告)日:2002-08-13

    申请号:US09591465

    申请日:2000-06-09

    申请人: Thomas J. Lynch

    发明人: Thomas J. Lynch

    IPC分类号: F84

    摘要: A butadiene-type polymer suitable for use as a processing aid in a rubber composition is formed by polymerizing butadiene or other conjugated diene monomers in a solvent, such as hexane, to form a polymer of relatively low molecular weight (around 30-40,000 g/mole). The polymer is coupled with a coupling agent, such as tin tetrachloride, to increase its molecular weight to a level at which conventional desolventizing processes may be used to remove the solvent from the mix. After desolventizing, the polymer is decoupled, by heating, to return the polymer to its original molecular weight.

    摘要翻译: 适合用作橡胶组合物中的加工助剂的丁二烯型聚合物是通过在溶剂如己烷中使丁二烯或其它共轭二烯单体聚合形成相对低分子量的聚合物(约30-40,000g / 痣)。 聚合物与偶联剂如四氯化锡偶联,以将其分子量增加到可以使用常规脱溶剂方法从混合物中除去溶剂的水平。 脱溶剂后,通过加热将聚合物分离,使聚合物返回其原始分子量。

    Polymers containing organotin compounds and paint on the basis thereof
    8.
    发明授权
    Polymers containing organotin compounds and paint on the basis thereof 失效
    含有有机锡化合物的聚合物和基于其的油漆

    公开(公告)号:US4497937A

    公开(公告)日:1985-02-05

    申请号:US477402

    申请日:1983-03-21

    摘要: Polymers containing organotin compounds having advantageous use as paint binders obtained by reacting a cyclized rubber with organotin compounds of the formula R.sub.3 --Sn--O--Z wherein R represents a hydrocarbon group from 1 to 15 carbon atoms and Z is a phenolate group derived from a phenolic compound having from 6 to 15 carbon atoms. In marine applications paints incorporating such polymers remain un-fouled after extended use and are self-polishing. Such polymers are obtained by reacting cyclized rubber and an organotin compound at an elevated temperature in an inert solvent.

    摘要翻译: 含有有机锡化合物的聚合物有利地用作涂料粘合剂,其通过环化橡胶与式R3-Sn-OZ的有机锡化合物反应获得,其中R表示1至15个碳原子的烃基,Z是衍生自酚类化合物的酚盐基 具有6至15个碳原子。 在海洋应用中,掺入这种聚合物的涂料在长期使用后保持不污染,并且是自抛光的。 这样的聚合物通过环化橡胶和有机锡化合物在高温下在惰性溶剂中反应而获得。