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30 条记录 (耗时 0.051 秒)

    Methods of preparing active chromium/alumina catalysts via treatment with sulfate
    21.
    发明授权
    Methods of preparing active chromium/alumina catalysts via treatment with sulfate 有权
    通过硫酸盐处理制备活性铬/氧化铝催化剂的方法

    公开(公告)号：US07214642B2

    公开(公告)日：2007-05-08

    申请号：US10829850

    申请日：2004-04-22

    申请人： Max P. McDaniel ,  Kathy S. Collins ,  Elizabeth A. Benham ,  Paul J. DesLauriers

    发明人： Max P. McDaniel ,  Kathy S. Collins ,  Elizabeth A. Benham ,  Paul J. DesLauriers

    IPC分类号： B01J27/053 ,  B01J27/188 ,  B01J21/00 ,  C01F7/02 ,  C08F4/06

    CPC分类号： C08F10/00 ,  B01J23/26 ,  B01J27/053 ,  C08F4/63916 ,  C08F4/63925 ,  C08F110/02 ,  C08F4/69 ,  C08F2500/12 ,  C08F2500/04 ,  C08F4/025 ,  C08F4/22

    摘要： Methods of preparing a polymerization catalyst are provided that include contacting a support comprising alumina with a sulfating agent and with chromium. In an embodiment in which the chromium is provided from a chromium compound such as chromium oxide, the support may be calcined after loading the sulfating agent and the chromium on the support. Alternatively, the sulfating agent can be loaded on the support while calcining it. In another embodiment in which the chromium is provided from an organochromium compound, the support may be calcined after contacting it with the sulfating agent and before contacting it with the organochromium compound. Catalysts compositions formed by the foregoing method are provided. In an embodiment, catalyst compositions comprise chromium and a sulfate treated alumina support. The catalyst compositions have an activity for ethylene polymerization that is at least about 25% greater than an activity of the same catalyst without sulfate.

    摘要翻译： 提供制备聚合催化剂的方法包括使包含氧化铝的载体与硫酸化剂和铬接触。 在其中铬由铬化合物如氧化铬提供的实施方案中，可以在将硫酸化剂和铬负载在载体上之后煅烧载体。 或者，硫酸化剂可以在煅烧时装载到载体上。 在其中铬由有机铬化合物提供的另一个实施方案中，载体可以在与硫酸化剂接触之后并在与有机铬化合物接触之前被煅烧。 提供了通过上述方法形成的催化剂组合物。 在一个实施方案中，催化剂组合物包含铬和硫酸盐处理的氧化铝载体。 催化剂组合物具有乙烯聚合的活性，其比不含硫酸盐的相同催化剂的活性大至少约25％。

    Polymerization catalyst systems and processes therefor and therewith
    23.
    发明授权
    Polymerization catalyst systems and processes therefor and therewith 有权
    聚合催化剂体系及其工艺及其

    公开(公告)号：US06525148B1

    公开(公告)日：2003-02-25

    申请号：US09640868

    申请日：2000-08-18

    申请人： Max P. McDaniel ,  Elizabeth A. Benham ,  Al R. Wolfe ,  Paul J. DesLauriers

    发明人： Max P. McDaniel ,  Elizabeth A. Benham ,  Al R. Wolfe ,  Paul J. DesLauriers

    IPC分类号： C08F452

    CPC分类号： F16L9/127 ,  C08F10/00 ,  C08F210/16 ,  Y10T428/139 ,  C08F4/69 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/07 ,  C08F2500/13 ,  C08F2500/04 ,  C08F4/025

    摘要： A copolymer of ethylene and a higher alpha olefin, preferably 1-hexene, can be produced using an activated chromium containing catalyst system and a cocatalyst selected from the group consisting of trialkylboron, trialkylsiloxyaluminum, and a combination of trialkylboron and trialkylaluminum compounds. The polymerization process must be carefully controlled to produce a copolymer resin having an exceptionally broad molecular weight distribution, extremely high PENT ESCR values, and a natural branch profile that impacts branching preferably into the high molecular weight portion of the polymer. The resulting copolymer resin is especially useful in high stiffness pipe applications.

    摘要翻译： 可以使用活化的含铬催化剂体系和选自三烷基硼，三烷基硅氧烷铝和三烷基硼和三烷基铝化合物的组合的助催化剂来制备乙烯和较高级α-烯烃（优选1-己烯）的共聚物。 聚合过程必须仔细控制，以产生具有非常宽的分子量分布，极高的PENT ESCR值和天然分支分布的共聚物树脂，其优选地影响聚合物的高分子量部分的分支。 所得共聚物树脂在高刚度管道应用中特别有用。

    Process for sulfur-containing derivatives of hydroxyphenylbenzotriazoles
    24.
    发明授权
    Process for sulfur-containing derivatives of hydroxyphenylbenzotriazoles 失效
    羟苯基苯并三唑的含硫衍生物的方法

    公开(公告)号：US5410071A

    公开(公告)日：1995-04-25

    申请号：US197905

    申请日：1994-02-17

    申请人： Paul J. DesLauriers ,  Paritosh K. Das ,  Darryl R. Fahey

    发明人： Paul J. DesLauriers ,  Paritosh K. Das ,  Darryl R. Fahey

    IPC分类号： C07D249/20 ,  C08G75/02 ,  C08G85/00 ,  C08K5/378

    CPC分类号： C08K5/378 ,  C07D249/20 ,  C08G75/0204 ,  C08G85/00

    摘要： A composition that, when present in a polymer matrix, reduces the deleterious effect of UV light absorption by the polymer is provided, which comprises a sulfur-containing derivative of hydroxyphenylbenzotriazole having the formula of: ##STR1## wherein each X is selected from the group consisting of hydrogen, halogens, cyano, alkyl, phenyl group, biphenyl group, arylthio, amine, ketone, aldehyde, alkoxy, hydroxy, carboxylic acid group, oligomer and combinations thereof and can have carbon atoms up to about 20; n is a whole number from 1 to 5; n' is a whole number from 0 to 4; n" is a whole number from 1 to 2 and each n" can be the same or different; q is an integer from 1 to 10; each Y is selected from the group consisting of --S(O)(O)--, --S(O)--, and --S--; each R can be selected from the group consisting of hydrogen, alkyl group, alkenyl group, aralkyl group, alkaryl group, and combinations thereof and can have 0 to about 10 carbon atoms; each OH group can be at either the 2'- or the 6'-position, or both. Also provided are a composition comprising the sulfur-containing derivative, a process for preparing the derivative, a composition comprising a polymer chemically bonded to the derivative, and a process for preparing the composition which comprises a polymer chemically bonded to the derivative.

    摘要翻译： 当存在于聚合物基质中时，提供降低由聚合物引起的UV光吸收的有害影响的组合物，其包含具有下式的羟基苯基苯并三唑的含硫衍生物：其中每个X选自 由氢，卤素，氰基，烷基，苯基，联苯基，芳硫基，胺，酮，醛，烷氧基，羟基，羧酸基，低聚物及其组合组成，可以具有高达约20的碳原子; n为1〜5的整数; n'是从0到4的整数; n“是从1到2的整数，并且每个n”可以相同或不同; q是1至10的整数; 每个Y选自-S（O）（O） - ， - S（O） - 和-S-; 每个R可以选自氢，烷基，烯基，芳烷基，烷芳基及其组合，并且可以具有0至约10个碳原子; 每个OH基团可以在2'-或6'-位，或两者。 还提供了包含含硫衍生物的组合物，制备衍生物的方法，包含与衍生物化学键合的聚合物的组合物，以及包含与衍生物化学键合的聚合物的组合物的方法。

    Co-production of an alkenyl aromatic compound or precursor thereof and an oxygenated sulfur-containing compound
    28.
    发明授权
    Co-production of an alkenyl aromatic compound or precursor thereof and an oxygenated sulfur-containing compound 失效
    联合生产烯基芳族化合物或其前体和含氧化合物

    公开(公告)号：US5446227A

    公开(公告)日：1995-08-29

    申请号：US128498

    申请日：1993-09-07

    申请人： Paul J. DesLauriers ,  Michael S. Matson

    发明人： Paul J. DesLauriers ,  Michael S. Matson

    IPC分类号： C07C1/20 ,  C07C15/40 ,  C07C315/02 ,  C07C409/08 ,  C07C1/00

    CPC分类号： C07C409/08 ,  C07C1/20 ,  C07C15/40 ,  C07C315/02 ,  C07C407/00

    摘要： A process for co-production of an alkenyl aromatic compound such as, for example, styrene and t-butylstyrene, and an oxygenated sulfur-containing compound such as, for example, a sulfoxide or a sulfone is disclosed which comprises: (1) contacting, in the presence or absence of a catalyst, an .alpha.-methyl benzylic hydroperoxide with an organic sulfide compound to produce a mixture of an .alpha.-methyl benzylic hydroxide and an oxygenated sulfur-containing compound; (2) separating the .alpha.-methyl benzylic hydroxide from the sulfur-containing compound; (3) contacting the .alpha.-methyl benzylic hydroxide with a base to convert the .alpha.-methyl benzylic hydroxide to the alkenyl aromatic compound; and optionally, (4) recovering the alkenyl aromatic compound from the oxygenated sulfur-containing compound. The sulfoxide produced can be oxidized to a sulfone. The contacting of the .alpha.-methyl benzylic hydroxide with a base can also be carried out before the .alpha.-methyl benzylic hydroxide is separated from the oxygenated sulfur-containing compound followed by separation of the sulfur-containing compound.

    摘要翻译： 公开了一种共同制备链烯基芳族化合物如苯乙烯和叔丁基苯乙烯的方法和含氧化的含硫化合物，例如亚砜​​或砜，其包括：（1）接触 在存在或不存在催化剂的情况下，将α-甲基苄基氢过氧化物与有机硫化物混合以产生α-甲基苄基氢氧化物和含氧的含硫化合物的混合物; （2）从含硫化合物中分离α-甲基苄基氢氧化物; （3）使α-甲基苄基氢氧化物与碱反应以将α-甲基苄基氢氧化物转化为链烯基芳族化合物; 和（4）从含氧化合物中回收链烯基芳族化合物。 所生成的亚砜可以被氧化成砜。 α-甲基苄基氢氧化物与碱的接触也可以在将α-甲基苄基氢氧化物与含氧的含硫化合物分离，然后分离含硫化合物之前进行。

    Rust conversion composition
    30.
    发明授权
    Rust conversion composition 失效
    锈转化成分

    公开(公告)号：US4945017A

    公开(公告)日：1990-07-31

    申请号：US320842

    申请日：1989-03-03

    申请人： Paul J. DesLauriers ,  William J. Heilman

    发明人： Paul J. DesLauriers ,  William J. Heilman

    IPC分类号： C09D4/00 ,  C23C22/50

    CPC分类号： C23C22/50 ,  C09D4/00

    摘要： A composition for conversion of a rusted metal surface to form a durable coating thereon consists essentially of a reducing agent which reduces an trivalent iron present on the surface, an organic monomer to which is capable of polymerization on the surface in the presence of the reducing agent and a free radical initiator which polymerizes the organic monomer to form the durable coating.

    摘要翻译： 用于转化生锈的金属表面以形成耐久涂层的组合物基本上由还原剂组成，其还原存在于表面上的三价铁，在还原剂存在下能够在表面上聚合的有机单体 以及使有机单体聚合以形成耐久涂层的自由基引发剂。