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    Surface devulcanization of cured rubber crumb
    7.
    发明授权
    Surface devulcanization of cured rubber crumb 失效
    固化橡胶屑表面脱硫

    公开(公告)号：US06387965B1

    公开(公告)日：2002-05-14

    申请号：US09711799

    申请日：2000-11-13

    申请人： David Andrew Benko ,  Roger Neil Beers

    发明人： David Andrew Benko ,  Roger Neil Beers

    IPC分类号： C08J1104

    CPC分类号： C08J11/22 ,  C08J2319/00 ,  C08J2321/00 ,  Y02W30/706

    摘要： This invention discloses a process for devulcanizing the surface of reclaimed rubber crumb into surface devulcanized reclaimed rubber crumb that is suitable for being recompounded and recured into high performance rubber products, said process comprising the steps of (1) heating the reclaimed rubber crumb to a temperature which is within the range of about 150° C. to about 300° C. under a pressure of at least about 3.4×106 Pascals in the presence of a solvent selected from the group consisting of alcohols and ketones, wherein said solvent has a critical temperature, which is within the range of about 200° C. to about 350° C., to devulcanize the surface of the rubber crumb thereby producing a slurry of the surface devulcanized reclaimed rubber crumb in the solvent, wherein the reclaimed rubber crumb has a particle size which is within the range of about 325 mesh to about 20 mesh, and (2) separating the surface devulcanized reclaimed rubber crumb from the solvent.

    摘要翻译： 本发明公开了一种将再生橡胶碎屑的表面脱硫成表面脱硫再生橡胶屑的方法，该方法适用于重新混合再生成高性能橡胶制品，所述方法包括以下步骤：（1）将再生橡胶碎屑加热至 在选自醇和酮的溶剂的存在下，在至少约3.4×10 6帕斯卡的压力下在约150℃至约300℃的范围内，其中所述溶剂具有临界温度 ，其在约200℃至约350℃的范围内，以使橡胶屑的表面脱硫，由此在溶剂中产生表面脱硫的再生橡胶碎屑的浆料，其中回收的橡胶屑具有颗粒 尺寸在约325目至约20目的范围内，和（2）将表面脱硫的再生橡胶碎屑与溶剂分离。

    Tire innerliner composition
    8.
    发明授权
    Tire innerliner composition 失效
    轮胎内衬组成

    公开(公告)号：US5922153A

    公开(公告)日：1999-07-13

    申请号：US12288

    申请日：1998-01-23

    申请人： Roger Neil Beers ,  David Andrew Benko ,  Bill Bud Gross ,  Adel Farhan Halasa

    发明人： Roger Neil Beers ,  David Andrew Benko ,  Bill Bud Gross ,  Adel Farhan Halasa

    IPC分类号： B60C1/00 ,  C08L23/28 ,  C08L53/00 ,  B60C5/14

    CPC分类号： B60C1/0008 ,  C08L23/283 ,  C08L53/00 ,  Y10S152/16

    摘要： A halobutyl rubber is generally used in the innerliner of pneumatic tires to retard the escape of air used to inflate the tire, thereby maintaining tire pressure. Since halobutyl rubbers, such as bromobutyl rubber, are generally the most expensive elastomers used in tires, it is desirable from a standpoint of cost reduction to reduce the level of halobutyl rubbers used in tires. The present invention relates to a technique for reducing the quantity of halobutyl rubber utilized in the innerliner of tubeless pneumatic vehicle tires. The present invention more specifically relates to a tire innerliner and pneumatic tires containing the same, which are prepared from a composition comprising, based on 100 parts by weight of rubber, a blend of (1) about 50 parts to about 90 parts of a halobutyl rubber and (2) about 10 parts to about 50 parts of a styrene-isoprene-butadiene terpolymer rubber having a first glass transition temperature which is within the range of about -110.degree. C. to about -20.degree. C. and a second glass transition temperature which is within the range of about -50.degree. C. to about 0.degree. C., wherein said styrene-isoprene-butadiene terpolymer rubber contains about 20 weight percent to about 40 weight percent bound styrene.

    摘要翻译： 通常，在充气轮胎的内衬层中使用卤代丁基橡胶，以阻止用于使轮胎充气的空气的逸出，从而保持轮胎压力。 由于卤代丁基橡胶（例如溴丁基橡胶）通常是轮胎中使用的最昂贵的弹性体，因此从成本降低的观点来看，期望降低轮胎中使用的卤代丁基橡胶的含量。 本发明涉及减少无内胎气动车辆轮胎的内衬中使用的卤代丁基橡胶的量的技术。 本发明更具体地涉及一种包含其的轮胎内衬和充气轮胎，其由基于100重量份橡胶的组合物制备，（1）约50重量份至约90重量份的卤代丁基 橡胶和（2）约10份至约50份第一玻璃化转变温度在约-110℃至约-20℃范围内的苯乙烯 - 异戊二烯 - 丁二烯三元共聚物橡胶和第二玻璃 转化温度在约-50℃至约0℃的范围内，其中所述苯乙烯 - 异戊二烯 - 丁二烯三元共聚物橡胶含有约20重量％至约40重量％的结合苯乙烯。

    Surface devulcanization of cured rubber crumb
    10.
    发明授权
    Surface devulcanization of cured rubber crumb 失效
    固化橡胶屑表面脱硫

    公开(公告)号：US06462099B1

    公开(公告)日：2002-10-08

    申请号：US10052182

    申请日：2002-01-17

    申请人： David Andrew Benko ,  Roger Neil Beers

    发明人： David Andrew Benko ,  Roger Neil Beers

    IPC分类号： C08J1104

    CPC分类号： C08J11/24 ,  B60C1/0016 ,  C08J2319/00 ,  C08J2321/00 ,  C08L21/00 ,  Y02W30/706 ,  Y10S264/912 ,  C08L2666/08

    摘要： This invention discloses a process for devulcanizing the surface of reclaimed rubber crumb into surface devulcanized reclaimed rubber crumb that is suitable for being recompounded and recurred into high performance rubber products, said process comprising the steps of (1) heating the reclaimed rubber crumb to a temperature within the range of about 150° C. to about 300° C. under pressure of at least about 3.4×106 Pascals in the presence of 2-butanol to devulcanized the surface of the rubber crumb thereby producing a slurry of the surface devulcanized reclaimed rubber crumb in the 2-butanol, wherein the reclaimed rubber crumb has a particles size which is within the range of about 325 mesh to about 20 mesh, and (2) separating the surface devulcanized reclaimed rubber crumb from 2-butanol.

    摘要翻译： 本发明公开了一种将再生橡胶屑的表面脱硫成表面脱硫再生橡胶屑的方法，该方法适用于重新混合并复制成高性能橡胶制品，所述方法包括以下步骤：（1）将回收的橡胶碎屑加热至 在2-丁醇的存在下，在约150℃至约300℃的压力下至少约3.4×10 6帕斯卡的压力下，将橡胶碎屑的表面硫化，从而产生表面脱硫的再生橡胶碎屑的浆料 在所述2-丁醇中，其中所述再生橡胶屑具有在约325目至约20目范围内的颗粒尺寸，和（2）将所述表面脱硫的再生橡胶碎屑与2-丁醇分离。