Initiation system comprising a silylated initiator for anionic (co)polymerization of (meth)acrylic monomer(s) and process using same
    1.
    发明授权
    Initiation system comprising a silylated initiator for anionic (co)polymerization of (meth)acrylic monomer(s) and process using same 失效
    包括用于(甲基)丙烯酸单体的阴离子(共)聚合的甲硅烷基化引发剂的起始体系和使用它们的方法

    公开(公告)号:US06319875B1

    公开(公告)日:2001-11-20

    申请号:US09058481

    申请日:1998-04-10

    IPC分类号: B01J3112

    摘要: The initiation system comprises (1) at least one silylated initiator and (2) at least one alkaline metal alcoholate as ligand. The silylated initiator may be monofunctional and selected in particular from among the compounds of Formula (I) or difunctional and selected in particular from among the compounds of Formula (II): wherein R1, R2, R3 each independently represent a C1-C8alkyl radical, linear or branched; R4 is a linear or branched C1-C8alkylene radical; M is an alkaline metal or alkaline earth metal (valence q of 1 or 2); R5 and R6 each independently represent an alkyl radical, linear or branched, at C1-C8; R7, R8 each independently represent a C1-C8alkylene radical, linear or branched; M′ is an alkaline metal. Application is to the preparation of (meth)acrylic (co)polymers.

    摘要翻译: 引发体系包括(1)至少一种甲硅烷基化引发剂和(2)至少一种碱金属醇化物作为配体。 甲硅烷基化的引发剂可以是单官能的,特别是选自式(I)的化合物或二官能的,特别是选自式(II)的化合物:其中R 1,R 2,R 3各自独立地表示C 1 -C 8烷基, 直链或支链; R4是直链或支链C1-C8亚烷基; M是碱金属或碱土金属(价数q为1或2); R 5和R 6各自独立地表示在C 1 -C 8的直链或支链的烷基; R 7,R 8各自独立地表示直链或支链的C 1 -C 8亚烷基; M'是碱金属。 适用于(甲基)丙烯酸(共)聚合物的制备。

    Process and iron-based catalyst composition for the production of syndiotactic 1,2-polybutadiene
    2.
    发明授权
    Process and iron-based catalyst composition for the production of syndiotactic 1,2-polybutadiene 有权
    用于制备间同立构1,2-聚丁二烯的方法和铁基催化剂组合物

    公开(公告)号:US06277779B1

    公开(公告)日:2001-08-21

    申请号:US09172305

    申请日:1998-10-14

    申请人: Steven Luo

    发明人: Steven Luo

    IPC分类号: B01J3112

    CPC分类号: C08F4/70 C08F136/06

    摘要: A catalyst composition comprising (a) an iron-containing compound, (b) a dihydrocarbyl hydrogen phosphite, and (c) an organoaluminum compound is disclosed for polymerizing 1,3-butadiene into syndiotactic 1,2-polybutadiene. The use of the catalyst composition of this disclosure avoids the use of environmentally detrimental components such as carbon disulfide and halogenated solvents. The melting temperature of the syndiotactic 1,2-polybutadiene can be varied from about 100 to about 200° C. by variations in the catalyst components and the component ratios. The ability to vary the melting temperature over such a broad range with a single catalyst composition is very desirable. The syndiotactic 1,2-polybutadiene can be used as a plastic or as an additive for rubber compositions wherein it can crosslink with conventional rubbers using conventional crosslinking agents.

    摘要翻译: 公开了一种催化剂组合物,其包含(a)含铁化合物,(b)二烃基亚磷酸氢盐和(c)有机铝化合物,用于将1,3-丁二烯聚合成间规1,2-聚丁二烯。 使用本公开的催化剂组合物避免使用环境有害组分如二硫化碳和卤化溶剂。 间同立构1,2-聚丁二烯的熔融温度可以通过催化剂组分和组分比例的变化从约100至约200℃变化。 使用单一催化剂组合物在这样宽的范围内改变熔融温度的能力是非常理想的。 间规1,2-聚丁二烯可以用作塑料或作为橡胶组合物的添加剂,其中它可以使用常规的交联剂与常规橡胶交联。

    Process for treating silica with alumoxane
    3.
    发明授权
    Process for treating silica with alumoxane 失效
    用铝氧烷处理二氧化硅的方法

    公开(公告)号:US06211109B1

    公开(公告)日:2001-04-03

    申请号:US09085922

    申请日:1998-05-28

    IPC分类号: B01J3112

    摘要: The invention provides a process for commercial production of syndiotactic polyolefins using a metallocene catalyst supported on silica treated with MAO. The invention includes contacting the supported metallocene catalyst with an aluminum alkyl and aging the catalyst prior to polymerization. In addition, the catalyst is prepolymerized in a tubular reactor prior to being introduced into the polymerization reaction zone. The treated silica is produced by removing water to a level of 0.5-1.08%, slurrying in a nonpolar solvent, adding an alumoxane, heating to reflux, cooling the slurry, and separating the solid product.

    摘要翻译: 本发明提供了使用负载在用MAO处理的二氧化硅上的茂金属催化剂来商业生产间同立构聚烯烃的方法。 本发明包括使负载的茂金属催化剂与烷基铝接触并在聚合之前使催化剂老化。 此外,催化剂在引入聚合反应区之前在管式反应器中预聚合。 处理的二氧化硅通过将水除去至0.5-1.08%的水平,在非极性溶剂中成浆,加入铝氧烷,加热回流,冷却浆料,分离固体产物。

    Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
    4.
    发明授权
    Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst 有权
    使用镧系元素有机酸盐催化剂合成1,4-反式聚丁二烯

    公开(公告)号:US06184168B2

    公开(公告)日:2001-02-06

    申请号:US09467683

    申请日:1999-12-21

    申请人: Thomas J. Lynch

    发明人: Thomas J. Lynch

    IPC分类号: B01J3112

    CPC分类号: C08F36/04 C08F4/545

    摘要: The invention provides a catalyst composition, comprising: (a) an organolithium compound; and, (b) an organic acid salt of lanthanide series element; wherein: (1) only components (a) and (b) are required to promote the synthesis of 1,4-trans-polybutadiene; (2) the ratio of component (a) to component (b) is selected to maximize formation of the trans structure of said 1,4-trans-polybutadiene; and, (3) components (a) and (b) are selected for enabling further diblock synthesis. The invention further contemplates a process for using the catalyst to synthesize 1,4-trans-polybutadiene and other polymers and copolymers having trans configuration in the conjugated diene monomer contributed units.

    摘要翻译: 本发明提供一种催化剂组合物,其包含:(a)有机锂化合物; 和(b)镧系元素有机酸盐; 其中:(1)仅需要组分(a)和(b)促进1,4-反式聚丁二烯的合成; (2)选择组分(a)与组分(b)的比例以使所述1,4-反式聚丁二烯的反式结构的形成最大化; 并且(3)组分(a)和(b)被选择用于进一步进行二嵌段合成。 本发明进一步考虑了使用该催化剂合成1,4-反式聚丁二烯和其它在共轭二烯单体贡献单元中具有反式构型的聚合物和共聚物的方法。

    Use of tin derivatives as latent polycondensation catalysts, and premix containing them
    5.
    发明授权
    Use of tin derivatives as latent polycondensation catalysts, and premix containing them 失效
    锡衍生物作为潜在缩聚催化剂的使用,以及含有它们的预混物

    公开(公告)号:US06649557B1

    公开(公告)日:2003-11-18

    申请号:US09671529

    申请日:2000-09-27

    IPC分类号: B01J3112

    摘要: Tin derivatives for use as oxygen-activated latent polycondensation catalysts. According to the invention, said tin derivatives have at least one tin-tin bond of the formula (I): R1—Yn—R4 wherein R1 and R4 which can be the same or different, are selected from hydrogen, and advantageously from the hydrocarbon radicals or together form a divalent radical or a single ring forming-bond; wherein n is at least equal to 2; wherein the Y, which are the same or different, stand for a stannic grouping having the structure (s): R′ and R″, which can be the same or different, are selected from hydrogen and advantageously from the hydrocarbon radicals. Application to paints.

    摘要翻译: 用作氧活化潜在缩聚催化剂的锡衍生物。 根据本发明,所述锡衍生物具有至少一个式(I)的锡锡键:其中可以相同或不同的R 1和R 4选自氢,有利地来自烃 基团或一起形成二价基团或单环形成键; 其中n至少等于2; 其中相同或不同的Y代表具有以下结构的亚锡基团:R'和R“可相同或不同,选自氢和有利地来自烃基。 适用于油漆。

    Process and iron-based catalyst composition for the production of syndiotactic 1,2-polybutadiene
    6.
    发明授权
    Process and iron-based catalyst composition for the production of syndiotactic 1,2-polybutadiene 有权
    用于制备间同立构1,2-聚丁二烯的方法和铁基催化剂组合物

    公开(公告)号:US06620760B2

    公开(公告)日:2003-09-16

    申请号:US09850240

    申请日:2001-05-07

    申请人: Steven Luo

    发明人: Steven Luo

    IPC分类号: B01J3112

    CPC分类号: C08F4/70 C08F136/06

    摘要: A catalyst composition comprising (a) an iron-containing compound, (b) a dihydrocarbyl hydrogen phosphite, and (c) an organoaluminum compound is disclosed for polymerizing 1,3-butadiene into syndiotactic 1,2-polybutadiene. The use of the catalyst composition of this disclosure avoids the use of environmentally detrimental components such as carbon disulfide and halogenated solvents. The melting temperature of the syndiotactic 1,2-polybutadiene can be varied from about 100 to about 200° C. by variations in the catalyst components and the component ratios. The ability to vary the melting temperature over such a broad range with a single catalyst composition is very desirable. The syndiotactic 1,2-polybutadiene can be used as a plastic or as an additive for rubber compositions wherein it can crosslink with conventional rubbers using conventional crosslinking agents.

    摘要翻译: 公开了一种催化剂组合物,其包含(a)含铁化合物,(b)二烃基亚磷酸氢盐和(c)有机铝化合物,用于将1,3-丁二烯聚合成间规1,2-聚丁二烯。 使用本公开的催化剂组合物避免使用环境有害组分如二硫化碳和卤化溶剂。 间同立构1,2-聚丁二烯的熔融温度可以通过催化剂组分和组分比例的变化从约100至约200℃变化。 使用单一催化剂组合物在这样宽的范围内改变熔融温度的能力是非常理想的。 间规1,2-聚丁二烯可以用作塑料或作为橡胶组合物的添加剂,其中它可以使用常规的交联剂与常规橡胶交联。

    Methanol tolerant catalyst material
    8.
    发明授权
    Methanol tolerant catalyst material 失效
    甲醇耐受催化剂材料

    公开(公告)号:US06245707B1

    公开(公告)日:2001-06-12

    申请号:US09429702

    申请日:1999-10-28

    IPC分类号: B01J3112

    摘要: Methanol tolerant catalyst materials and a method of making the same are provided. These novel catalyst materials are obtained by mixing together and heat-treating at least two different transition-metal-containing nitrogen chelates. In preferred embodiments, the nitrogen chelates comprise metalloporphyrins such as transition-metal-containing tetraphenylporphins. Preferred transition metals are iron, cobalt, nickel, copper, manganese, ruthenium, vanadium, and zinc, but could be any transition metal other than platinum or palladium. These materials offer improved catalytic oxygen reduction in the presence of methanol, as may occur at a fuel cell cathode after methanol crossover.

    摘要翻译: 提供了甲醇耐受催化剂材料及其制备方法。 这些新型催化剂材料通过将至少两种不同的含过渡金属的氮螯合物混合在一起并进行热处理而获得。 在优选的实施方案中,氮螯合物包括金属卟啉,例如含过渡金属的四苯基卟吩。 优选的过渡金属是铁,钴,镍,铜,锰,钌,钒和锌,但也可以是铂或钯以外的任何过渡金属。 这些材料在甲醇存在下提供改进的催化氧还原,如甲醇交联后在燃料电池阴极可能发生的那样。