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62 条记录 (耗时 0.019 秒)

    Hydrogenation using surfactants
    2.
    发明授权
    Hydrogenation using surfactants 失效
    使用表面活性剂氢化

    公开(公告)号：US4155943A

    公开(公告)日：1979-05-22

    申请号：US850581

    申请日：1977-11-11

    申请人： Eilert A. Ofstead ,  Lawson G. Wideman

    发明人： Eilert A. Ofstead ,  Lawson G. Wideman

    IPC分类号： C07C5/05 ,  C07C5/06

    CPC分类号： C07C5/05 ,  C07C2101/10 ,  C07C2525/02

    摘要： There is disclosed a process for the preparation of cyclopentene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by contacting cyclopentadiene with hydrogen in the presence of a hydrogenation catalyst comprising a highly dispersed form of nickel in which a substantial amount of water and certain surfactants are employed in the reaction mixture.

    摘要翻译： 公开了一种制备环戊烯的方法，该方法包括通过使环戊二烯与氢在氢化催化剂的存在下选择氢化环戊二烯，所述氢化催化剂包含高分散形式的镍，其中使用大量的水和某些表面活性剂 在反应混合物中。

    Monoesters of rosin acid
    3.
    发明授权
    Monoesters of rosin acid 失效
    松香酸单酯

    公开(公告)号：US5504127A

    公开(公告)日：1996-04-02

    申请号：US419481

    申请日：1995-04-10

    申请人： Lawson G. Wideman ,  Paul H. Sandstrom

    发明人： Lawson G. Wideman ,  Paul H. Sandstrom

    IPC分类号： C07C69/753 ,  C08K5/134 ,  C08L21/00 ,  C08L93/00 ,  C08L93/04 ,  C09F1/04 ,  C11D15/04 ,  C08K5/34

    CPC分类号： C11D15/04 ,  C08K5/134 ,  C08L21/00 ,  C08L7/00 ,  C08L93/04

    摘要： The present invention relates to monoesters of rosin acids which are useful as a total or partial replacement for extender or processing oil in rubber formulations. Addition of these monoesters of rosin acid improve the modulus and tear of the vulcanizate. The monoesters are of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different hydrocarbon radicals selected from the group consisting of saturated alkyl and cycloalkyl radicals containing 3 to 20 carbon atoms, aryl radicals containing 6 carbon atoms and aralkyl radicals containing 7 to 20 carbon atoms.

    摘要翻译： 本发明涉及松香酸的单酯，其可用作橡胶制剂中的增量剂或加工油的全部或部分替代物。 这些松香酸单酯的加入改善了硫化橡胶的模量和撕裂。 单酯具有下式：其中R 1和R 2是相同或不同的选自含有3-20个碳原子的饱和烷基和环烷基的烃基，含有6个碳原子的芳基和 含有7〜20个碳原子的芳烷基。

    Sulfur vulcanized rubber compounds containing oligomeric maleimide
    4.
    发明授权
    Sulfur vulcanized rubber compounds containing oligomeric maleimide 失效
    硫磺硫化橡胶化合物含有低聚马来酰亚胺

    公开(公告)号：US5278242A

    公开(公告)日：1994-01-11

    申请号：US774426

    申请日：1991-10-10

    申请人： Joel Muse ,  Paul H. Sandstrom ,  Lawson G. Wideman

    发明人： Joel Muse ,  Paul H. Sandstrom ,  Lawson G. Wideman

    IPC分类号： C08K5/20 ,  C08K5/3415 ,  C08F265/10 ,  C08G73/10

    CPC分类号： C08K5/20 ,  C08K5/3415

    摘要： The present invention relates to a sulfur vulcanized rubber composition containing 0.1 to 10.0 phr of an oligomeric maleimide of the formula: ##STR1## or a maleamic acid of the formula: ##STR2## wherein R and R.sup.1 are individually selected from the group of radicals consisting of hydrogen, an alkyl having 1 to 4 carbon atoms or a halogen; R.sup.2 is selected from the group of radicals consisting of 1 to 12 carbon atoms; X has a value of from 1 to 146 and n has a value of from 0 to 4.The presence of the maleimide oligomer or maleamic acid improve cord adhesion to the sulfur vulcanized rubber compound.

    摘要翻译： 本发明涉及一种硫磺硫化橡胶组合物，其含有0.1至10.0phr的下式的低聚马来酰亚胺：（*化学结构*）或下式的马来酰胺酸：（*化学结构*）其中R和R 1各自独立地选择 由氢组成的基团，具有1至4个碳原子的烷基或卤素; R2选自由1至12个碳原子组成的基团; X的值为1〜146，n为0〜4。马来酰亚胺低聚物或马来酰胺酸的存在可提高与硫硫化橡胶化合物的帘线粘合性。

    Carboxylated syndiotactic 1,2-polybutadiene
    6.
    发明授权
    Carboxylated syndiotactic 1,2-polybutadiene 失效
    羧基间同立构1,2-聚丁二烯

    公开(公告)号：US4960834A

    公开(公告)日：1990-10-02

    申请号：US461955

    申请日：1990-01-08

    申请人： Lawson G. Wideman

    发明人： Lawson G. Wideman

    IPC分类号： C08C19/00 ,  C08C19/34

    CPC分类号： C08C19/00 ,  C08C19/34

    摘要： Syndiotactic 1,2-polybutadiene can be blended with various rubbers in order to improve the properties thereof. For instance, syndiotactic 1,2-polybutadiene can be blended with rubbers utilized in making tire treads in order to improve the heat build-up and wear characteristics of tires. The interaction and adhesion between syndiotactic 1,2-polybutadiene and rubbers can be improved by carboxylating the syndiotactic 1,2-polybutadiene. The presence of carboxylic acid groups on the syndiotactic 1,2-polybutadiene also greatly improves interaction with fillers commonly utilized in rubber compounding, such as carbon black. This invention discloses a process whereby syndiotactic 1,2-polybutadiene can be easily and inexpensively carboxylated. This invention more specifically discloses a method for preparing carboxylated syndiotactic 1,2-polybutadiene which comprises: (1) reacting syndiotactic 1,2-polybutadiene with hydrogen and carbon monoxide in an organic medium to produce formyl syndiotactic 1,2-polybutadiene, wherein the syndiotactic 1,2-polybutadiene is in the form of small particles having a particle size of less than about 250 microns which are suspended in the organic medium; and (2) reacting the formyl syndiotactic 1,2-polybutadiene with oxygen to produce the carboxylated syndiotactic 1,2-polybutadiene.

    摘要翻译： 间同立构1,2-聚丁二烯可与各种橡胶共混以改善其性能。 例如，间同立构1,2-聚丁二烯可与用于制造轮胎胎面的橡胶共混，以改善轮胎的发热和磨损特性。 间同立构1,2-聚丁二烯与橡胶之间的相互作用和粘附性可以通过间同联的1,2-聚丁二烯的羧化来改善。 在间同立构1,2-聚丁二烯上存在羧酸基团也极大地改善了与橡胶配混剂中通常使用的填料（例如炭黑）的相互作用。 本发明公开了间同立构1,2-聚丁二烯容易且廉价羧化的方法。 本发明更具体地公开了一种制备羧化间规1,2-聚丁二烯的方法，其包括：（1）使间同立构1,2-聚丁二烯与氢和一氧化碳在有机介质中反应，生成甲酰基间同立构1,2-聚丁二烯，其中 间规1,2-聚丁二烯是悬浮在有机介质中的粒径小于约250微米的小颗粒的形式; 和（2）使甲酰基间规1,2-聚丁二烯与氧反应以产生羧化的间同立构1,2-聚丁二烯。

    Method for preparing carboxylated syndiotactic 1,2-polybutadiene
    7.
    发明授权
    Method for preparing carboxylated syndiotactic 1,2-polybutadiene 失效
    羧基间规1,2-聚丁二烯的制备方法

    公开(公告)号：US4912145A

    公开(公告)日：1990-03-27

    申请号：US176577

    申请日：1988-04-01

    申请人： Lawson G. Wideman

    发明人： Lawson G. Wideman

    IPC分类号： C08C19/00 ,  C08C19/34

    CPC分类号： C08C19/00 ,  C08C19/34

    摘要： Syndiotactic 1,2-polybutadiene can be blended with various rubbers in order to improve the properties thereof. For instance, syndiotactic 1,2-polybutadiene can be blended with rubbers utilized in making tire treads in order to improve the heat build-up and wear characteristics of tires. The interaction and adhesion between syndiotactic 1,2-polybutadiene and rubbers can be improved by carboxylating the syndiotactic 1,2-polybutadiene. The presence of carboxylic acid groups on the syndiotactic 1,2-polybutadiene also greatly improves interaction with fillers commonly utilized in rubber compounding, such as carbon black. This invention discloses a process whereby syndiotactic 1,2-polybutadiene can be easily and inexpensively carboxylated. This invention more specifically discloses a method for preparing carboxylated syndiotactic 1,2-polybutadiene which comprises: (1) reacting syndiotactic 1,2-polybutadiene with hydrogen and carbon monoxide in an organic medium to produce formyl syndiotactic 1,2-polybutadiene, wherein the syndiotactic 1,2-polybutadiene is in the form of small particles having a particle size of less than about 250 microns which are suspended in the organic medium; and (2) reacting the formyl syndiotactic 1,2-polybutadiene with oxygen to produce the carboxylated syndiotactic 1,2-polybutadiene.

    摘要翻译： 间同立构1,2-聚丁二烯可与各种橡胶共混以改善其性能。 例如，间同立构1,2-聚丁二烯可与用于制造轮胎胎面的橡胶共混，以改善轮胎的发热和磨损特性。 间同立构1,2-聚丁二烯与橡胶之间的相互作用和粘附性可以通过间同联的1,2-聚丁二烯的羧化来改善。 在间同立构1,2-聚丁二烯上存在羧酸基团也极大地改善了与橡胶配混剂中通常使用的填料（例如炭黑）的相互作用。 本发明公开了间同立构1,2-聚丁二烯容易且廉价羧化的方法。 本发明更具体地公开了一种制备羧化间规1,2-聚丁二烯的方法，其包括：（1）使间同立构1,2-聚丁二烯与氢和一氧化碳在有机介质中反应，生成甲酰基间同立构1,2-聚丁二烯，其中 间规1,2-聚丁二烯是悬浮在有机介质中的粒径小于约250微米的小颗粒的形式; 和（2）使甲酰基间规1,2-聚丁二烯与氧反应以产生羧化的间同立构1,2-聚丁二烯。

    Polymeric hydrogenation catalyst containing pendant rhodium containing groups
    8.
    发明授权
    Polymeric hydrogenation catalyst containing pendant rhodium containing groups 失效
    含有含铑基的聚合氢化催化剂

    公开(公告)号：US4797452A

    公开(公告)日：1989-01-10

    申请号：US16605

    申请日：1987-02-19

    申请人： Lawson G. Wideman ,  Wen-Liang Hsu

    发明人： Lawson G. Wideman ,  Wen-Liang Hsu

    IPC分类号： C08F8/04 ,  C08C19/02

    CPC分类号： C08C19/02

    摘要： This invention discloses a process for selectively hydrogenating double bonds in unsaturated polymers, such as polybutadiene. The utilization of the process of this invention results in a rate of vinyl hydrogenation which is slowed relative to the rate of backbone hydrogenation. By utilizing the process of this invention, the rate of hydrogenation of double bonds in the polymers is satisfactory. The process of the subject invention more specifically comprises contacting a polymer containing double bonds in its backbone and vinyl unsaturation with hydrogen in the presence of a polymer containing pendant groups having the structural formula --Rh(P.phi..sub.3).sub.2 X wherein .phi. represents a phenyl group and wherein X represents a halogen atom. Polymers having pendant --P.phi..sub.2 --Rh(P.phi..sub.3).sub.2 X groups are highly preferred catalysts for utilization in the selective hydrogenations of this invention.