Adhesives based on elastomeric copolymers having theromplastic polymer
grafts
    1.
    发明授权
    Adhesives based on elastomeric copolymers having theromplastic polymer grafts 失效
    基于具有THEROMPLASTIC POLYMER GRAFTS的弹性体共聚物的粘合剂

    公开(公告)号:US5227426A

    公开(公告)日:1993-07-13

    申请号:US634847

    申请日:1990-12-27

    IPC分类号: C09J151/06 C09J153/00

    CPC分类号: C09J151/06 C09J153/00

    摘要: An adhesive is disclosed. The adhesive is a blend of a tackifier and a polymer, having an elastomeric main chain and incorporating thermoplastic macromonomer side chain grafts, which can exhibit enhanced shear thinning and allow spray application of the adhesive onto a substrate. In one embodiment, the polymer main chain comprises a polymer of an isoolefin having about 4 to about 7 carbon atoms and a para-alkylstyrene, and the side chains comprise a grafted macromonomer, such as a terminally functionalized polystyryl chain of very narrow molecular weight distribution, attached to the para-alkyl group of the para-alkylstyrene. In another embodiment, the polymer comprises a polyolefin main chain and a norbornene terminated macromolecule copolymerized to introduce the side chains.

    摘要翻译: 公开了粘合剂。 粘合剂是增粘剂和聚合物的共混物,其具有弹性体主链并结合热塑性大分子单体侧链接枝,其可以表现出增强的剪切稀化并允许将粘合剂喷涂到基底上。 在一个实施方案中,聚合物主链包含具有约4至约7个碳原子的异烯烃聚合物和对烷基苯乙烯,并且侧链包含接枝的大分子单体,例如非常窄的分子量分布的末端官能化聚苯乙烯基链 ,连接在对位烷基苯乙烯的对位烷基上。 在另一个实施方案中,聚合物包含聚烯烃主链和降冰片烯封端的大分子共聚以引入侧链。

    Carbon Nanotube Particulates, Compositions and Use Thereof
    2.
    发明申请
    Carbon Nanotube Particulates, Compositions and Use Thereof 有权
    碳纳米管颗粒,组成和用途

    公开(公告)号:US20100254886A1

    公开(公告)日:2010-10-07

    申请号:US11531730

    申请日:2006-09-14

    IPC分类号: D01F9/12

    摘要: A method for making carbon nanotube particulates involves providing a catalyst comprising catalytic metals, such as iron and molybdenum or metals from Group VIB or Group VIIIB elements, on a support material, such as magnesia, and contacting the catalyst with a gaseous carbon-containing feedstock, such as methane, at a sufficient temperature and for a sufficient contact time to make small-diameter carbon nanotubes having one or more walls and outer wall diameters of less than about 3 nm. Removal of the support material from the carbon nanotubes yields particulates of enmeshed carbon nanotubes that retain an approximate three-dimensional shape and size of the particulate support that was removed. The carbon nanotube particulates can comprise ropes of carbon nanotubes. The carbon nanotube particulates disperse well in polymers and show high conductivity in polymers at low loadings. As electrical emitters, the carbon nanotube particulates exhibit very low “turn on” emission field.

    摘要翻译: 制造碳纳米管微粒的方法涉及提供催化剂,该催化剂包括催化金属如铁和钼或来自VIB族或VIIIB族元素的金属,在载体材料如氧化镁上,并使催化剂与气态含碳原料接触 ,例如甲烷,在足够的温度下和足够的接触时间来制备具有一个或多个壁和外壁直径小于约3nm的小直径碳纳米管。 从碳纳米管去除载体材料产生嵌入的碳纳米管的颗粒,其保留被除去的颗粒载体的近似三维形状和尺寸。 碳纳米管颗粒可以包括碳纳米管的绳索。 碳纳米管颗粒分散在聚合物中,并且在低负载下在聚合物中显示高导电性。 作为电发射体,碳纳米管微粒表现出非常低的“导通”发射场。

    Entanglement-inhibited macromolecules
    4.
    发明授权
    Entanglement-inhibited macromolecules 失效
    免疫抑制大分子

    公开(公告)号:US5206303A

    公开(公告)日:1993-04-27

    申请号:US634846

    申请日:1990-12-27

    摘要: A grafted and/or functionalized macromolecule comprises entanglement-inhibited architecture wherein the polymer exhibits reduced melt viscosity. In one embodiment, the macromolecule comprises a polymer of an isoolefin having about 4 to about 7 carbon atom and a para-alkylstyrene, wherein a grafted macromonomer such as a terminally functionalized polystyryl chain of very narrow molecular weight distribution is attached to the para-alkyl group of the para-alkylstyrene such that entanglement of adjacent chains in the melt are inhibited. In addition to distributed macromonomer grafts, other functionality may be attached to the para-alkyl group of the para-alkylstyrene to introduce other desirable properties such as radiation curability. In another embodiment the macromolecule comprises a polymer of one or more simple olefinic monomers wherein a macromolecule is attached to pendent functionality and/or copolymerized into the polymer backbone. A particularly preferred macromonomer comprises a terminal norbornene functional group.

    摘要翻译: 接枝和/或官能化的大分子包括缠结抑制结构,其中聚合物表现出降低的熔体粘度。 在一个实施方案中,大分子包含具有约4至约7个碳原子的异烯烃聚合物和对 - 烷基苯乙烯,其中接枝的大分子单体如具有非常窄的分子量分布的末端官能化的聚苯乙烯基链连接到对位烷基 一组对位烷基苯乙烯,使得熔体中相邻链的缠结被抑制。 除了分散的大分子单体移植物之外,其它官能团可以连接到对烷基苯乙烯的对位烷基上以引入其它期望的性质,例如辐射固化性。 在另一个实施方案中,大分子包含一种或多种简单烯烃单体的聚合物,其中大分子连接至侧链官能团和/或共聚到聚合物主链中。 特别优选的大分子单体包括末端降冰片烯官能团。

    Fluid coking with solvent separation of recycle oil
    5.
    发明授权
    Fluid coking with solvent separation of recycle oil 失效
    流体焦化与循环油的溶剂分离

    公开(公告)号:US4497705A

    公开(公告)日:1985-02-05

    申请号:US523960

    申请日:1983-08-17

    IPC分类号: C10B55/00 C10G55/04 C10G9/32

    CPC分类号: C10B55/00 C10G55/04

    摘要: A fluid coking process is provided in which a stream of heavy oil product, which typically is recycled to the coking zone, is first subjected to solvent separation to separate it into a high Conradson carbon product and a lower Conradson carbon product and, thereafter, at least a portion of the lower Conradson carbon product is recovered and the high Conradson carbon product is recycled to the coking zone.

    摘要翻译: 提供了一种流体焦化方法,其中通常循环到焦化区的重油产物流首先进行溶剂分离以将其分离成高康拉逊碳产物和较低的康拉逊碳产物,然后在 回收至少一部分较低的康拉逊碳产品,并将高康拉逊碳产品再循环至焦化区。

    Composite materials comprising polar polymers and single-wall carbon nanotubes
    7.
    发明授权
    Composite materials comprising polar polymers and single-wall carbon nanotubes 有权
    复合材料包括极性聚合物和单壁碳纳米管

    公开(公告)号:US06936653B2

    公开(公告)日:2005-08-30

    申请号:US10389256

    申请日:2003-03-14

    摘要: The invention relates to a composite comprising a weight fraction of single-wall carbon nanotubes and at least one polar polymer wherein the composite has an electrical and/or thermal conductivity enhanced over that of the polymer alone. The invention also comprises a method for making this polymer composition. The present application provides composite compositions that, over a wide range of single-wall carbon nanotube loading, have electrical conductivities exceeding those known in the art by more than one order of magnitude. The electrical conductivity enhancement depends on the weight fraction (F) of the single-wall carbon nanotubes in the composite. The electrical conductivity of the composite of this invention is at least 5 Siemens per centimeter (S/cm) at (F) of 0.5 (i.e. where single-wall carbon nanotube loading weight represents half of the total composite weight), at least 1 S/cm at a F of 0.1, at least 1×10−4 S/cm at (F) of 0.004, at least 6×10−9 S/cm at (F) of 0.001 and at least 3×10−16 S/cm (F) plus the intrinsic conductivity of the polymer matrix material at of 0.0001. The thermal conductivity enhancement is in excess of 1 Watt/m-° K. The polar polymer can be polycarbonate, poly(acrylic acid), poly(acrylic acid), poly(methacrylic acid), polyoxide, polysulfide, polysulfone, polyamides, polyester, polyurethane, polyimide, poly(vinyl acetate), poly(vinyl alcohol), poly(vinyl chloride), poly(vinyl pyridine), poly(vinyl pyrrolidone), copolymers thereof and combinations thereof. The composite can further comprise a nonpolar polymer, such as, a polyolefin polymer, polyethylene, polypropylene, polybutene, polyisobutene, polyisoprene, polystyrene, copolymers thereof and combinations thereof.

    摘要翻译: 本发明涉及一种复合材料,其包含单壁碳纳米管的重量分数和至少一种极性聚合物,其中复合材料的电和/或热导率比单独聚合物的电导率和/或导热系数增强。 本发明还包括制备该聚合物组合物的方法。 本申请提供复合组合物,其在宽范围的单壁碳纳米管负载下具有超过本领域已知的超过一个数量级的电导率。 电导率增强取决于复合材料中单壁碳纳米管的重量分数(F)。 本发明的复合材料的电导率在(F)为0.5时每厘米至少5西门子(S / cm)(即单壁碳纳米管负载重量占总复合重量的一半),至少1 S / F,在(F)为0.004时至少为1×10 -4 S / cm,在(F)时为至少6×10 -9 S / cm 0.001和至少3×10 -6 / cm(F)加上聚合物基质材料的固有电导率为0.0001。 热导率提高超过1瓦/米-2°K。极性聚合物可以是聚碳酸酯,聚(丙烯酸),聚(丙烯酸),聚(甲基丙烯酸),聚氧化物,多硫化物,聚砜,聚酰胺,聚酯 ,聚氨酯,聚酰亚胺,聚(乙酸乙烯酯),聚(乙烯醇),聚(氯乙烯),聚(乙烯基吡啶),聚(乙烯基吡咯烷酮),其共聚物及其组合。 复合材料还可以包含非极性聚合物,例如聚烯烃聚合物,聚乙烯,聚丙烯,聚丁烯,聚异丁烯,聚异戊二烯,聚苯乙烯,其共聚物和它们的组合。