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74 条记录 (耗时 0.026 秒)

    Hydroxyl-terminated polybutadienes and their use in curing formulations
    12.
    发明申请
    Hydroxyl-terminated polybutadienes and their use in curing formulations 有权
    羟基封端的聚丁二烯及其在固化配方中的用途

    公开(公告)号：US20040122176A1

    公开(公告)日：2004-06-24

    申请号：US10732732

    申请日：2003-12-10

    发明人： Herbert Chao ,  Nan Tian ,  Alain Drexler ,  John Schmidhauser

    IPC分类号： C08F008/00 ,  C08L009/00

    CPC分类号： C08G18/69 ,  C08G18/10 ,  C08G18/12 ,  C08G2170/20 ,  C08G2190/00 ,  C08G18/3206

    摘要： Compositions comprising (A) non-branched polybutadiene having terminal hydroxyl functionality less than 2 per molecule by average; and (B) branched polybutadiene having terminal hydroxyl functionality more than 2 per molecule by average; the weight ratio of (A) to (B) being about 99:1 to 1:99. These compositions are reacted with organic polyisocyanates to form prepolymers which are cured by reaction with a chain extender such as a diol to produce cured resins which exhibit unexpectedly improved tear strength properties and themoplasticity with high modulus, and improved tackiness and shelf life for hot melt adhesives. The prepolymers have lower viscosity and better storage stability as compared with those from conventional branched polybutadienes of the (B) type. Alternatively, the compositions can be cured directly in a one-shot reaction with diisocyanates to form a polyurethane with the described combination of properties. In addition, the compositions of (A) and (B) can be reacted to form polybutadienes with carboxyl, amine or epoxy-terminal functionality with are useful components of formulations.

    摘要翻译： 组合物，其包含（A）平均每分子具有小于2的末端羟基官能团的非支化聚丁二烯; 和（B）平均每分子具有大于2个末端羟基官能团的支化聚丁二烯; （A）至（B）的重量比为约99:1至1:99。 这些组合物与有机多异氰酸酯反应以形成预聚物，其通过与扩链剂如二醇反应而固化，以产生固化树脂，其显示出意想不到的改善的撕裂强度性能和高模量的塑性，以及改进的热熔粘合剂的粘性和保质期 。 与来自（B）类型的常规支化聚丁二烯相比，预聚物具有较低的粘度和更好的储存稳定性。 或者，组合物可以直接与二异氰酸酯进行一次反应，以形成具有所述性质组合的聚氨酯。 此外，（A）和（B）的组合物可以反应形成具有羧基，胺或环氧基末端官能团的聚丁二烯，其是制剂的有用组分。

    Rubber mixture that can be cross-linked by sulfur, method for the production thereof, and cross-linked rubber mixtures and shaped bodies that can be obtained therefrom
    14.
    发明申请
    Rubber mixture that can be cross-linked by sulfur, method for the production thereof, and cross-linked rubber mixtures and shaped bodies that can be obtained therefrom 失效
    可以通过硫交联的橡胶混合物，其制备方法以及可从其获得的交联橡胶混合物和成型体

    公开(公告)号：US20040034159A1

    公开(公告)日：2004-02-19

    申请号：US10239620

    申请日：2003-01-03

    发明人： Rainer Brandsch ,  Dick Stefan ,  Klaus Schurz ,  Rennar Nikolaus ,  Andreas Siedler

    IPC分类号： C08L009/00

    CPC分类号： C08K3/346 ,  B29B7/7495 ,  Y02T10/862 ,  C08L21/00

    摘要： A rubber compound, cross-linkable with sulfur, is described, containing: (a) at least one diene polymer or copolymer; (b) at least one finely divided, acid-activated layer silicate derived from a smectitic layer silicate as reinforcing filler; (c) at least one coupler with groups reactive relative to filler (b). The cross-linkable rubber compound can be produced according to a method comprising the following steps: (i) Mixing of the diene polymer or copolymer (a) and the reinforcing filler (b) with coupler (c) and/or optionally with a master batch mixture of filler (b) with coupler (c1) and optionally with additional ordinary additives, except for vulcanization chemicals, using ordinary mixing equipment at about 105 to 150null C.; (ii) Mixing of the vulcanization chemicals at a temperature of less than about 100null C. The object of the invention is also a rubber compound cross-linkable with sulfur that can be obtained from the rubber compound, cross-linkable with sulfur, by vulcanization at temperatures of more than about 100null C. Finally, molded articles, especially vehicle tires or parts thereof, rubber bearings, conveyor belts, hoses and sealing elements that are obtainable from the cross-linkable or cross-linked rubber compounds are objects of the invention.

    摘要翻译： 描述了可与硫交联的橡胶化合物，其包含：（a）至少一种二烯聚合物或共聚物; （b）由硅酸盐作为增强填料的至少一种细碎的酸活化层硅酸盐; （c）至少一个具有相对于填料（b）反应的基团的成色剂。 可交联橡胶化合物可以根据包括以下步骤的方法制备：（i）将二烯聚合物或共聚物（a）和增强填料（b）与成色剂（c）和/或任选地与母料 填料（b）与成色剂（c1）的批料混合物，任选地含有另外的常规添加剂，硫化化学品除外，使用普通搅拌设备在约105-150℃下进行。 （ii）在小于约100℃的温度下混合硫化化学品。本发明的目的还是可与硫交联的橡胶化合物，其可由橡胶化合物获得，可与硫交联，通过 在大于约100℃的温度下进行硫化。最后，可从可交联或交联的橡胶化合物获得的模制品，特别是车辆轮胎或其部件，橡胶轴承，输送带，软管和密封元件是 本发明。

    Golf ball cores comprising blends of polybutadiene rubbers
    15.
    发明申请
    Golf ball cores comprising blends of polybutadiene rubbers 有权
    高尔夫球芯包括聚丁二烯橡胶的共混物

    公开(公告)号：US20030229183A1

    公开(公告)日：2003-12-11

    申请号：US10164809

    申请日：2002-06-07

    发明人： Peter R. Voorheis ,  Samuel A. Pasqua JR. ,  Michael J. Sullivan ,  David A. Bulpett ,  Derek A. Ladd

    IPC分类号： C08L009/00

    CPC分类号： A63B37/0003 ,  A63B37/0033 ,  A63B37/0045 ,  A63B37/0047 ,  A63B37/0052 ,  A63B37/0054 ,  A63B37/0056 ,  A63B37/0064 ,  A63B37/0093 ,  A63B37/06

    摘要： A golf ball comprising a solid core and a cover disposed about the core, wherein the core is formed from a polybutadiene blend comprising a) a first polybutadiene having a first Mooney viscosity between about 50 and about 150, and b) a second polybutadiene having a second Mooney viscosity between about 30 and about 100, wherein the first Mooney viscosity is greater than the second Mooney viscosity, and wherein the blend has a greater weight percentage of the first polybutadiene than that of the second polybutadiene.

    摘要翻译： 一种高尔夫球，包括固体芯和围绕所述芯设置的盖，其中所述芯由聚丁二烯共混物形成，所述聚丁二烯共混物包含a）第一聚丁二烯，所述第一聚丁二烯具有约50至约150的第一门尼粘度，和b）第二聚丁二烯， 第二门尼粘度在约30至约100之间，其中第一门尼粘度大于第二门尼粘度，并且其中所述共混物的第一聚丁二烯的重量百分数高于第二聚丁二烯。

    Shock reducing footwear and method of manufacture
    17.
    发明申请
    Shock reducing footwear and method of manufacture 审中-公开
    减震鞋和制造方法

    公开(公告)号：US20020193498A1

    公开(公告)日：2002-12-19

    申请号：US10117127

    申请日：2002-04-08

    发明人： Jeffrey W. Brown

    IPC分类号： C08L009/00 ,  C08K003/00

    CPC分类号： A43B1/0018 ,  A43B1/0054 ,  A43B13/182

    摘要： An article of footwear has an outsole with a cavity in the heel region in which a cushioning insert is installed to cushion impacts and provide added lift to the wearer The heel region of the outsole projects outwardly beyond the periphery of the heel region of the shoe upper to form a projecting peripheral rim. The sole is preferably made from a material containing a mixture of rubber and a polybutadiene elastomer

    摘要翻译： 鞋类物品具有在鞋跟区域中具有空腔的鞋外底，其中安装缓冲插入物以缓冲冲击并向穿着者提供附加的提升鞋底的鞋跟区域向外突出超出鞋面鞋跟区域的周边 以形成突出的外围边缘。 鞋底优选由含有橡胶和聚丁二烯弹性体的混合物的材料制成

    Flame-retardant polymer composition comprising polypropylene and an ethylene copolymer having high structural uniformity
    18.
    发明申请
    Flame-retardant polymer composition comprising polypropylene and an ethylene copolymer having high structural uniformity 有权
    包含聚丙烯和具有高结构均匀性的乙烯共聚物的阻燃聚合物组合物

    公开(公告)号：US20020188078A1

    公开(公告)日：2002-12-12

    申请号：US10095704

    申请日：2002-03-13

    申请人： PIRELLI CAVI SISTEMI S.p.A.

    发明人： Luca Castellani ,  Eduardo Grizante Redondo ,  Antonio Zaopo ,  Enrico Albizzati

    IPC分类号： C08L009/00

    CPC分类号： H01B7/295 ,  C08K3/22 ,  C08K2003/2217 ,  C08K2201/003 ,  C08K2201/006 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16 ,  C08L51/06 ,  C08L2201/02 ,  C08L2203/202 ,  C08L2314/06 ,  H01B3/441 ,  Y10T428/2938 ,  Y10T428/294 ,  C08L23/02 ,  C08L2666/04

    摘要： A cable, in particular for power transmission, for telecommunications or for data transmission, or also combined power/telecommunications cables, wherein at least one coating layer consists of a recyclable material which is halogen-free and has superior mechanical, electrical, and flame-retardant properties. This material consists of a polymer mixture comprising: (a) a crystalline propylene homopolymer or copolymer; and (b) a copolymer of ethylene with at least one alpha-olefin having from 4 to 12 carbon atoms, and optionally with a diene; the said copolymer (b) being characterized by a density of between 0.90 and 0.86 g/cm3 and by a Composition Distribution Index, defined as the weight percentage of copolymer molecules having an alpha-olefin content within 50% of the average total molar content of alpha-olefin, of greater than 45%. This material may also include a flame-retardant inorganic filler.

    摘要翻译： 一种电缆，特别是用于电力传输的电缆，用于电信或数据传输，或者还包括组合的电力/电信电缆，其中至少一个涂层由无卤素的可回收材料组成并且具有优异的机械，电和阻燃材料， 阻燃性能。 该材料由聚合物混合物组成，包括：（a）结晶丙烯均聚物或共聚物; 和（b）乙烯与至少一种具有4至12个碳原子的α-烯烃和任选与二烯的共聚物; 所述共聚物（b）的特征在于密度为0.90至0.86g / cm 3，并且通过组成分布指数，其定义为α-烯烃含量在平均总摩尔含量的50％以内的共聚物分子的重量百分比 α-烯烃，大于45％。 该材料还可以包括阻燃性无机填料。

    Oil-resistant rubber modified polystyrene composition
    20.
    发明申请
    Oil-resistant rubber modified polystyrene composition 失效
    耐油橡胶改性聚苯乙烯组合物

    公开(公告)号：US20020077425A1

    公开(公告)日：2002-06-20

    申请号：US09983480

    申请日：2001-10-24

    申请人： TOYO ENGINEERING CORPORATION

    发明人： Koji Kawano ,  Kenichiro Matsuba

    IPC分类号： C08L009/00 ,  C08L025/02

    CPC分类号： C08L51/04 ,  C08F279/02 ,  C08L2666/02

    摘要： An oil resistant rubber modified polystyrene composition comprises polybutadiene rubber particles having an average volume particle diameter of 6 to 13 nullm dispersed in polystyrene. The oil resistant rubber modified polystyrene of the present invention has a gel content of 25 to 35% by weight, a degree of swelling of 13 to 22, a residual volatile content of 2000 ppm or less, and a total amount of dimer and trimer of 8000 ppm or less. The oil resistant rubber modified polystyrene composition may be prepared by polymerizing styrene in the presence of polybutadiene rubber, foaming a solution of the rubber modified polystyrene under a reduced pressure of 3 to 40 mm Hg, heating the solution in a tubular heater to a temperature of 190 to 230null C., and then flushing the heated solution into a gas-liquid separator to devolatilize an unreacted monomer and a solvent therefrom.

    摘要翻译： 耐油橡胶改性聚苯乙烯组合物包含分散在聚苯乙烯中的平均体积粒径为6〜13μm的聚丁二烯橡胶颗粒。 本发明的耐油橡胶改性聚苯乙烯的凝胶含量为25〜35重量％，溶胀度为13〜22，残留挥发成分为2000ppm以下，二聚体和三聚体的总量 8000 ppm以下。 耐油橡胶改性聚苯乙烯组合物可以通过在聚丁二烯橡胶存在下聚合苯乙烯，在3-40mmHg的减压下发泡橡胶改性聚苯乙烯溶液，将管式加热器中的溶液加热至 190℃至230℃，然后将加热的溶液冲洗成气液分离器，使未反应的单体和溶剂脱挥发分。