Low permeability nanocomposites
    1.
    发明授权
    Low permeability nanocomposites 有权
    低渗透性纳米复合材料

    公开(公告)号:US07485677B2

    公开(公告)日:2009-02-03

    申请号:US10478281

    申请日:2002-05-29

    IPC分类号: C08K3/34 C08C19/22 C08L27/00

    摘要: The present invention is a blend of an halogenated elastomer and a clay, desirably an exfoliated clay, to form a nanocomposite suitable for an air barrier. In one embodiment, the halogenated elastomer is a polymer comprising C4 to C7 isoolefin derived units, a para-methylstyrene derived units, and para-(halomethylstyrene) derived units. In another embodiment, the halogenated elastomer is a butyl-type rubber. The clay may or may not have an additional exfoliating treatment present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an innerliner or innertube.

    摘要翻译: 本发明是卤化弹性体和粘土的混合物,理想地是剥离粘土,以形成适合于空气屏障的纳米复合材料。 在一个实施方案中,卤化弹性体是包含C4-C7异烯烃衍生单元,对甲基苯乙烯衍生单元和对 - (卤代甲基苯乙烯)衍生单元的聚合物。 在另一个实施方案中,卤化弹性体是丁基型橡胶。 在与共聚体共混之前,粘土可以或可以不具有额外的去角质处理。 互聚物/粘土混合物在本发明的纳米复合材料混合物中形成不同的相。 本发明的共混物具有改善的空气阻隔性能,并且适合作为内衬或内管。

    Low permeability nanocomposites
    2.
    发明授权
    Low permeability nanocomposites 有权
    低渗透性纳米复合材料

    公开(公告)号:US07491764B2

    公开(公告)日:2009-02-17

    申请号:US10478606

    申请日:2002-05-29

    IPC分类号: C08K5/01

    摘要: The present invention includes blends of a halogenated elastomer such as a butyl rubber or an interpolymer of, on one embodiment, a C4 to C7 isomonoolefin, a para-methylstyrene and a para-(halomethylstyrene), the interpolymer having been pre-mixed with an exfoliating compound and clay, the entire blend forming a nanocomposite in one embodiment. The clay may or may not have undergone an additional exfoliating treatment prior to blending with the halogenated elastomer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an air barrier.

    摘要翻译: 本发明包括卤化弹性体如丁基橡胶或在一个实施方案中为C4至C7异单烯烃,对甲基苯乙烯和对 - (卤代甲基苯乙烯)的互聚物的共混体,该互聚物已经与 去角质化合物和粘土,在一个实施方案中,整个共混物形成纳米复合材料。 在与卤化弹性体共混之前,粘土可以或可以不经历额外的去角质处理。 互聚物/粘土混合物在本发明的纳米复合材料混合物中形成不同的相。 本发明的共混物具有改善的空气阻隔性能,并且适合作为空气屏障。

    Functionalized elastomer nanocomposite
    3.
    发明授权
    Functionalized elastomer nanocomposite 有权
    官能化弹性体纳米复合材料

    公开(公告)号:US08399551B2

    公开(公告)日:2013-03-19

    申请号:US10518193

    申请日:2003-05-30

    摘要: An embodiment of the present invention is a nanocomposite comprising a clay and an elastomer comprising at least C2 to C10 olefin derived units; wherein the elastomer also comprises functionalized monomer units pendant to the elastomer. Desirable embodiments of the elastomer include poly(isobutylene-co-p-alkylstyrene) elastomers and poly(isobutylene-co-isoprene) elastomers, which are functionalized by reacting free radical generating agents and unsaturated carboxylic acids, unsaturated esters, unsaturated imides, and the like, with the elastomer. The clay is exfoliated in one embodiment by the addition of exfoliating agents such as alkyl amines and silanes to the clay. The composition can include secondary rubbers such as general purpose rubbers, and curatives, fillers, and the like. The nanocomposites of the invention have improved air barrier properties such as are useful for tire innerliners and innertubes.

    摘要翻译: 本发明的一个实施方案是纳米复合材料,其包含粘土和包含至少C2至C10烯烃衍生单元的弹性体; 其中弹性体还包括垂直于弹性体的官能化单体单元。 弹性体的优选实施方案包括聚(异丁烯 - 共 - 对烷基苯乙烯)弹性体和聚(异丁烯 - 共异戊二烯)弹性体,其通过使自由基产生剂和不饱和羧酸,不饱和酯,不饱和酰亚胺和 像弹性体一样。 粘土在一个实施方案中通过向粘土中加入去角质剂如烷基胺和硅烷来剥离。 组合物可以包括二次橡胶,例如通用橡胶,固化剂,填料等。 本发明的纳米复合材料具有改善的空气阻隔性能,例如可用于轮胎内衬和内管。

    Thermoplastic elastomer compositions and methods for making the same
    4.
    发明授权
    Thermoplastic elastomer compositions and methods for making the same 有权
    热塑性弹性体组合物及其制备方法

    公开(公告)号:US07585914B2

    公开(公告)日:2009-09-08

    申请号:US11270364

    申请日:2005-11-09

    IPC分类号: C08K9/04 C08L47/00

    摘要: The present invention provides a thermoplastic composition which may be unvulcanized or vulcanized. The thermoplastic composition can be a blend of a thermoplastic engineering resin, a halogenated terpolymer of a C4 to C7 isomonoolefin, a para-alkylstyrene, and a multiolefin. The engineering resin can be a polyamide, such as nylon 6/66 copolymers for example. The isomonoolefin can be an isobutylene for example. The multiolefin can be a C4 to C14 diene, such as isoprene for example.

    摘要翻译: 本发明提供可以未硫化或硫化的热塑性组合物。 热塑性组合物可以是热塑性工程树脂,C4至C7异单烯烃的卤化三元共聚物,对 - 烷基苯乙烯和多烯烃的共混物。 工程树脂可以是聚酰胺,例如尼龙6/66共聚物。 异源烯烃可以是例如异丁烯。 多烯烃可以是C4至C14二烯,例如异戊二烯。

    Low permeability nanocomposites
    5.
    发明授权
    Low permeability nanocomposites 有权
    低渗透性纳米复合材料

    公开(公告)号:US07407999B2

    公开(公告)日:2008-08-05

    申请号:US10476936

    申请日:2002-05-29

    IPC分类号: C08K9/00 C08K3/00

    摘要: The present invention is a blend of a thermoplastic engineering resin and an interpolymer of, on one embodiment, a C4 to C7 isomonoolefin, a para-methylstyrene and a para-(halomethylstyrene), the interpolymer having been pre-mixed with an exfoliated-clay, the entire blend forming a nanocomposite. The resin may or may not have a clay present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an air barrier.

    摘要翻译: 本发明是一种热塑性工程树脂和一种互聚物的混合物,在一个实施方案中,C 4-14 C 6 - 异丁烯烯烃,对甲基苯乙烯和对 - (卤代甲基苯乙烯),共聚体已经与剥离粘土预混合,整个共混物形成纳米复合材料。 在与共聚体共混之前,树脂可以具有也可以不具有粘土。 互聚物/粘土混合物在本发明的纳米复合材料混合物中形成不同的相。 本发明的共混物具有改善的空气阻隔性能,并且适合作为空气屏障。

    Process for making thermoplastic polymer pellets
    6.
    发明授权
    Process for making thermoplastic polymer pellets 有权
    制备热塑性聚合物颗粒的方法

    公开(公告)号:US08709315B2

    公开(公告)日:2014-04-29

    申请号:US12583318

    申请日:2009-08-18

    摘要: Provided is a process for making thermoplastic polymer pellets. The process has the following steps: (a) melting a thermoplastic polymer to form a polymer melt; (b) extruding the melt through a die to form a substantially continuous molten polymer extrudate wherein the die has a contact surface bearing a polymer coating having a surface energy of less than 25 mN/m at 20° C.; (c) cooling the extrudate to form a cooled extrudate; and (d) pelletizing the cooled extrudate to form a plurality of polymer pellets. Provided is also a polymer pellet shipping system and a stable thermoplastic polymer pellet.

    摘要翻译: 提供制备热塑性聚合物颗粒的方法。 该方法具有以下步骤:(a)熔化热塑性聚合物以形成聚合物熔体; (b)通过模具挤出熔体以形成基本上连续的熔融聚合物挤出物,其中模具具有在20℃下承载表面能小于25mN / m的聚合物涂层的接触表面; (c)冷却挤出物以形成冷却的挤出物; 和(d)将冷却的挤出物造粒以形成多个聚合物颗粒。 还提供聚合物颗粒运输系统和稳定的热塑性聚合物颗粒。

    Fiber-reinforced polypropylene/elastomer composite
    7.
    发明授权
    Fiber-reinforced polypropylene/elastomer composite 有权
    纤维增强聚丙烯/弹性体复合材料

    公开(公告)号:US08618214B2

    公开(公告)日:2013-12-31

    申请号:US12971454

    申请日:2010-12-17

    IPC分类号: C08L53/02 C08J5/06 C08L23/26

    摘要: Provided is a fiber-reinforced composite. The composite has a propylene polymer including 90 wt % or more of propylene monomeric units based on the weight of the propylene polymer; a plurality of fibers of a solid, flexible material grafted to the propylene polymer; and an elastomer. The fibers are present in the composite at 10 wt % to 80 wt % based on the total weight of the composite. The propylene polymer is present in the composite at from 30 wt % to 95 wt % based on the total weight of the composite. The elastomer is present in the composite at from 5 wt % to 50 wt % based on the total weight of the composite. Greater than 50 wt % of the fibers are dispersed within the propylene polymer based on the total weight of the fibers in the composite. There is also provided a process for making a fiber-reinforced composite.

    摘要翻译: 提供纤维增强复合材料。 复合材料具有基于丙烯聚合物重量的包含90重量%或更多丙烯单体单元的丙烯聚合物; 接枝到丙烯聚合物上的固体柔性材料的多根纤维; 和弹性体。 基于复合材料的总重量,纤维以10重量%至80重量%存在于复合材料中。 基于复合材料的总重量,丙烯聚合物以30重量%至95重量%的量存在于复合材料中。 基于复合材料的总重量,弹性体以5重量%至50重量%的量存在于复合材料中。 基于复合材料中纤维的总重量,大于50重量%的纤维分散在丙烯聚合物内。 还提供了一种制备纤维增强复合材料的方法。

    PROCESS FOR MAKING A SATURATED DENDRITIC HYDROCARBON POLYMER
    9.
    发明申请
    PROCESS FOR MAKING A SATURATED DENDRITIC HYDROCARBON POLYMER 有权
    制备饱和的聚碳酸酯聚合物的方法

    公开(公告)号:US20120157633A1

    公开(公告)日:2012-06-21

    申请号:US13329559

    申请日:2011-12-19

    IPC分类号: C08F8/32 C08F255/00

    摘要: A process for making a substantially saturated dendritic hydrocarbon polymer. The process has the following steps: (a) polymerizing an amount of a first alkadiene monomer under anionic conditions in the presence of a first organic monolithium initiator to produce a linear polyalkadiene having a lithiated chain end; (b) reacting the linear polyalkadiene with an amount of a second organic monolithium initiator in the presence of tetramethylethylene diamine to form a multilithiated polyalkadiene; (c) reacting the multilithiated polyalkadiene with an amount of a second alkadiene monomer to form a branched polyalkadiene; (d) repeating steps (b) and (c) with the branched polyalkadiene one or more times to prepare a dendritic polyalkadiene; and (e) hydrogenating the dendritic polyalkadiene to form the substantially saturated dendritic hydrocarbon polymer.

    摘要翻译: 制备基本上饱和的树枝状烃聚合物的方法。 该方法具有以下步骤:(a)在阴离子条件下在第一有机单锂引发剂的存在下聚合一定量的第一链烯二烯单体以产生具有锂化链端的直链聚二烯二醇; (b)在四甲基乙二胺的存在下使直链多聚二烯与一定量的第二有机单锂引发剂反应,形成多元化的聚链二烯; (c)使多元化多聚二烯与一定量的第二链烯二烯单体反应以形成支链聚二烯; (d)用支链聚链二烯重复步骤(b)和(c)一次或多次以制备树枝状聚二烯; 和(e)氢化树枝状聚亚烷基二醇以形成基本饱和的树枝状烃聚合物。

    Low permeability thermoplastic elastomer composition
    10.
    发明授权
    Low permeability thermoplastic elastomer composition 有权
    低渗透性热塑性弹性体组合物

    公开(公告)号:US08021730B2

    公开(公告)日:2011-09-20

    申请号:US12091535

    申请日:2005-10-27

    摘要: A thermoplastic elastomer composition possessing superior air impermeability, excellent durability and flexibility. In particular, the composition includes (A) at least one halogenated isobutylene-containing elastomer; and (B) at least one nylon resin having a melting point of about 170° C. to about 260° C.; and (C) a low molecular weight polymeric nylon plasticizer; wherein: (1) the at least one elastomer is present as a dispersed phase of small vulcanized particles in a continuous nylon phase; and (2) the elastomer particles are formed by dynamic vulcanization. Use of a low molecular weight nylon plasticizer provides for improved mixing and rubber dispersion while retaining the high levels of impermeability achievable by the use of nylon resin and halogenated isobutylene-containing elastomer in a dynamically vulcanized composition. Such compositions are particularly useful in applications such as tire innerliners and barrier films or layers as well as hoses.

    摘要翻译: 具有优异的防空气性,优异的耐久性和柔软性的热塑性弹性体组合物。 特别地,组合物包括(A)至少一种含卤代异丁烯的弹性体; 和(B)至少一种熔点为约170℃至约260℃的尼龙树脂; 和(C)低分子量聚合尼龙增塑剂; 其中:(1)所述至少一种弹性体作为连续尼龙相中的小硫化颗粒的分散相存在; 和(2)弹性体颗粒通过动态硫化形成。 使用低分子量尼龙增塑剂可提供改进的混合和橡胶分散体,同时保持在动态硫化组合物中使用尼龙树脂和含卤代异丁烯的弹性体可实现的高水平的不渗透性。 这样的组合物在诸如轮胎内衬和阻隔膜或层以及软管的应用中特别有用。