BRANCHED SATURATED HYDROCARBON POLYMERS AS EXTENSIONAL RHEOLOGY MODIFIERS WITHOUT IMPACTING SHEAR PROPERTIES
    2.
    发明申请
    BRANCHED SATURATED HYDROCARBON POLYMERS AS EXTENSIONAL RHEOLOGY MODIFIERS WITHOUT IMPACTING SHEAR PROPERTIES 有权
    分散式饱和烃聚合物作为不影响剪切性能的扩展流变学改性剂

    公开(公告)号:US20130261264A1

    公开(公告)日:2013-10-03

    申请号:US13855181

    申请日:2013-04-02

    IPC分类号: C08F110/02 C08L23/06

    摘要: Provided are blends of branched hydrocarbon comb polymers having tailored branching and molecular weight parameters, with substantially linear polymers. Such blends have been found to have improved extensional rheological properties, while maintaining nearly the viscosity of the substantially linear polymers. The blends of the hydrocarbon comb polymers with the substantially linear polymers thus maintain the extrusion processing characteristics of the linear polymer alone, but have improved extensional flow processability, with strain hardening ratios (SHR) greater than 1. The blends are effective in blown film processing. Also disclosed are related methods for improving extensional flow processability using the branched hydrocarbon comb polymers, as well as the branched hydrocarbon comb polymers themselves, including as a property enhancing additive for such substantially linear polymers.

    摘要翻译: 提供具有定制的支化和分子量参数的支链烃梳聚合物的混合物,具有基本上线性的聚合物。 已发现这种共混物具有改进的拉伸流变性能,同时保持基本上线性聚合物的粘度。 烃梳聚合物与基本上线性的聚合物的共混物因此保持单独的线性聚合物的挤出加工特性,但具有改进的拉伸流动加工性能,应变硬化率(SHR)大于1.该共混物在吹塑薄膜加工中是有效的 。 还公开了使用支链烃梳聚合物以及支链烃梳聚合物本身提高拉伸流加工性的相关方法,包括作为这种基本上线性的聚合物的性能增强添加剂。

    Graft copolymers containing ionomer units
    3.
    发明授权
    Graft copolymers containing ionomer units 失效
    含离聚物单元的接枝共聚物

    公开(公告)号:US6060563A

    公开(公告)日:2000-05-09

    申请号:US862630

    申请日:1997-05-23

    CPC分类号: C08G81/021

    摘要: Graft copolymers having cationic units pendant to the backbone chain are disclosed. These polymers are prepared by reacting a polymer containing halogenated paramethylstyrene units in the chain, e.g., a brominated copolymer of isobutylene and para-methylstyrene, with an anionically polymerized polymer made using an organolithium initiator compound having the formula R.sub.1 R.sub.2 Z R.sub.3 --Li where R.sub.1 and R.sub.2 are alkyl radicals, R.sub.3 is a direct link or an organic radical and Z is nitrogen or phosphorous. Reaction of the anionically polymerized polymer having an R.sub.1 R.sub.2 Z R.sub.3 --end group with the halogenated polymer leads to graft polymers coupled by a quaternary ammonium or phosphonium groups.

    摘要翻译: 公开了具有垂直于主链的阳离子单元的接枝共聚物。 这些聚合物通过使链中含有卤代对甲基苯乙烯单元的聚合物例如异丁烯和对甲基苯乙烯的溴化共聚物与使用具有式R1 R2 Z R3-Li的有机锂引发剂化合物制成的阴离子聚合聚合物反应制备,其中R 1 R2为烷基,R3为直链或有机基团,Z为氮或磷。 具有R1R2Z R3-端基的阴离子聚合聚合物与卤化聚合物的反应导致通过季铵或鏻基团偶联的接枝聚合物。

    Graft copolymers containing ionomer units
    5.
    发明授权
    Graft copolymers containing ionomer units 有权
    含离聚物单元的接枝共聚物

    公开(公告)号:US06388018B1

    公开(公告)日:2002-05-14

    申请号:US09519389

    申请日:2000-03-03

    IPC分类号: C08F25702

    CPC分类号: C08G81/021

    摘要: Graft copolymers having cationic units pendant to the backbone chain are disclosed. These polymers are prepared by reacting a polymer containing halogenated para-methylstyrene units in the chain, e.g., a brominated copolymer of isobutylene and para-methylstyrene, with an anionically polymerized polymer made using an organolithium initiator compound having the formula R1 R2 Z R3—Li where R1 and R2 are alkyl radicals, R3 is a direct link or an organic radical and Z is nitrogen or phosphorous. Reaction of the anionically polymerized polymer having an R1 R2 Z R3— end group with the halogenated polymer leads to graft polymers coupled by a quaternary ammonium or phosphonium groups.

    摘要翻译: 公开了具有垂直于主链的阳离子单元的接枝共聚物。 这些聚合物通过使链中含有卤代对甲基苯乙烯单元的聚合物例如异丁烯和对甲基苯乙烯的溴化共聚物与使用具有式R1 R2 Z R3-Li的有机锂引发剂化合物制成的阴离子聚合聚合物反应来制备 其中R1和R2是烷基,R3是直链或有机基团,Z是氮或磷。 具有R1R2Z R3-端基的阴离子聚合聚合物与卤化聚合物的反应导致通过季铵或鏻基团偶联的接枝聚合物。

    Method for inhibiting hydrate formation
    8.
    依法登记的发明
    Method for inhibiting hydrate formation 失效
    抑制水合物形成的方法

    公开(公告)号:USH1749H

    公开(公告)日:1998-09-01

    申请号:US306568

    申请日:1994-09-15

    IPC分类号: C09K8/52 C10L3/10 C07C9/00

    CPC分类号: C09K8/52 C09K2208/22 C10L3/10

    摘要: A method for inhibiting the formation of clathrate hydrates in a fluid having hydrate forming constituents is disclosed. More specifically, the method can be used in treating a petroleum fluid stream such as natural gas conveyed in a pipe to inhibit the formation of a hydrate restriction in the pipe. The method uses a mixture comprising a first additive and a second additive. The mixture produces a synergistic hydrate inhibition effect. The first additive is selected from the class of substantially water soluble polymers. The second additive is selected from the class of ionic or non-ionic organic compounds which have a polar part and nonpolar part with the nonpolar part having an alkyl, alkenyl, or alkynyl group with 12 or fewer carbon atoms.

    摘要翻译: 公开了一种抑制在具有水合物形成成分的流体中形成笼形水合物的方法。 更具体地说,该方法可用于处理在管道中输送的天然气等石油流体流,以抑制管道中的水合物限制。 该方法使用包含第一添加剂和第二添加剂的混合物。 该混合物产生协同的水合物抑制作用。 第一种添加剂选自基本上水溶性聚合物的类别。 第二种添加剂选自具有极性部分和非极性部分的离子或非离子有机化合物,其中非极性部分具有12个或更少碳原子的烷基,烯基或炔基。