Propylene copolymer
    1.
    发明授权
    Propylene copolymer 失效
    丙烯共聚物

    公开(公告)号:US5219968A

    公开(公告)日:1993-06-15

    申请号:US777238

    申请日:1991-11-12

    摘要: A substantially syndiotactic propylene copolymer which comprises propylene and at least one cyclic diolefin having 6 to 25 carbon atoms or an alkadiene having 6 to 25 carbon atoms and at least one terminal double bond, in the .sup.13 C-NMR spectrum of the copolymer measured in a 1,2,4-trichlorobenzene solution, a peak intensity observed at about 20.2 ppm as the reference of tetramethylsilane at 0.0 ppm being 0.5 or more of the total peak intensity attributed to methyl groups of propylene; the content of the cyclic diolefin or the alkadiene being from 0.01 to 20 mol %; the intrinsic viscosity [.eta.] of the copolymer measured in a tetralin solution at 135.degree. C. being from 0.1 to 10 dl/g.This copolymer can contain an .alpha.-olefin other than propylene, particularly ethylene.

    摘要翻译: PCT PCT / JP91 / 00466 Sec。 371日期1991年11月12日 102(e)日期1991年11月12日PCT 1991年4月9日PCT PCT。 第WO91 / 15523号公报 日本1991年10月17日。在13 C-NMR光谱中包含丙烯和至少一种具有6至25个碳原子的环状二烯烃或具有6至25个碳原子和至少一个末端双键的链二烯的基本间同立构丙烯共聚物 在1,2,4-三氯苯溶液中测定的共聚物,作为0.0ppm的四甲基硅烷的参考值,在约20.2ppm处观察到的峰强度为归因于丙烯的甲基的总峰强度的0.5以上; 环状二烯烃或链二烯的含量为0.01〜20摩尔% 在135℃下在四氢化萘溶液中测得的共聚物的特性粘度η为0.1-10dl / g。 该共聚物可以含有除丙烯以外的α-烯烃,特别是乙烯。

    Method for preparing block copolymers of propylene
    3.
    发明授权
    Method for preparing block copolymers of propylene 失效
    制备丙烯嵌段共聚物的方法

    公开(公告)号:US5175208A

    公开(公告)日:1992-12-29

    申请号:US377268

    申请日:1989-07-10

    IPC分类号: C08F297/08

    CPC分类号: C08F297/083

    摘要: An improved method for preparing block copolymers of propylene which comprises providing a polymerizer composed of at least two reaction vessels connected to one another, substantially homopolymerizing propylene in a first step and then copolymerizing ethylene and propylene in a second step in the presence of a stereoregular catalyst, characterized by carrying out the homopolymerization of propylene in the polymerizer composed of at least two reaction vessels connected to one another in series, then introducing the resulting polymer slurry into a countercurrent washing column and countercurrently washing the slurry with propylene, introducing the washed slurry withdrawn from the lower part of the washing column into a reaction vessel in the second step connected to the washing column and performing the polymerization of ethylene and propylene, of which ratio ranges from 15/85 to 95/5. According to this method, a block copolymer of propylene exhibiting excellent physical properties can be obtained efficiently.

    Polymeric insulating material and formed article making use of the
material
    5.
    发明授权
    Polymeric insulating material and formed article making use of the material 失效
    聚合绝缘材料和使用该材料的成型制品

    公开(公告)号:US5573840A

    公开(公告)日:1996-11-12

    申请号:US451394

    申请日:1995-05-26

    IPC分类号: C08L23/12 H01B3/44 B32B7/02

    摘要: The invention provides a polymeric insulating material having a high dielectric breakdown voltage. The material comprises polypropylene which has been obtained in a yield of at least 300,000 g/g-Ti based on titanium in a catalyst upon polymerization, contains ash in an amount not greater than 40 ppm by weight when analyzed by completely burning the polypropylene in air, said ash containing titanium in an amount not greater than 1 ppm by weight based on the weight of the polypropylene, and also contains chlorine in an amount not greater than 2 ppm by weight and boiling n-heptane soluble matter in an amount not smaller than 1 wt. % but not greater than 10 wt. %. To further improve the dielectric breakdown voltage an inorganic oxide or hydroxide free of particles of 10 .mu.m and greater in diameter and having an average particle size not greater than 1 .mu.m, an organopolysilane, a maleic-anhydride-grafted polypropylene, or a silane compound containing at least one organic polyether group can be added to the polypropylene.

    摘要翻译: 本发明提供了具有高绝缘击穿电压的聚合物绝缘材料。 该材料包括在聚合时以催化剂中钛为基准的至少300,000g / g-Ti的产率获得的聚丙烯,当通过在空气中完全燃烧聚丙烯进行分析时,含有不大于40ppm重量的灰分 所述灰分含量以聚丙烯重量计不超过1重量ppm,并且还含有不大于2重量ppm的氯和沸点正庚烷可溶物质量不小于 1重量% %但不大于10wt。 %。 为了进一步提高介电击穿电压,无机氧化物或氢氧化物不含直径10μm以上且平均粒径不大于1μm的颗粒,有机聚硅烷,马来酸酐接枝的聚丙烯或硅烷 可以将含有至少一个有机聚醚基团的化合物加入到聚丙烯中。

    Polymeric insulating material and formed article making use of the
material
    6.
    发明授权
    Polymeric insulating material and formed article making use of the material 失效
    聚合绝缘材料和使用该材料的成型制品

    公开(公告)号:US5476709A

    公开(公告)日:1995-12-19

    申请号:US73676

    申请日:1993-06-08

    IPC分类号: C08L23/12 H01B3/44 B32B7/02

    摘要: The invention provides a polymeric insulating material having a high dielectric breakdown voltage. The material comprises polypropylene which has been obtained in a yield of at least 300,000 g/g-Ti based on titanium in a catalyst upon polymerization, contains ash in an amount not greater than 40 ppm by weight when analyzed by completely burning the polypropylene in air, said ash containing titanium in an amount not greater than 1 ppm by weight based on the weight of the polypropylene, and also contains chlorine in an amount not greater than 2 ppm by weight and boiling n-heptane soluble matter in an amount not smaller than 1 wt. % but not greater than 10 wt. %. According to the invention, it is possible to further improve the dielectric breakdown voltage by adding to the polypropylene an inorganic oxide or hydroxide free of particles of 10 .mu.m and greater in diameter and having an average particle size not greater than 1 .mu.m, an organopolysilane, a maleic-anhydride-grafted polypropylene, or a silane compound containing at least one organic polyether group.

    摘要翻译: 本发明提供了具有高绝缘击穿电压的聚合物绝缘材料。 该材料包括在聚合时以催化剂中钛为基准的至少300,000g / g-Ti的产率获得的聚丙烯,当通过在空气中完全燃烧聚丙烯进行分析时,含有不大于40ppm重量的灰分 所述灰分含量以聚丙烯重量计不超过1重量ppm,并且还含有不大于2重量ppm的氯和沸点正庚烷可溶物质量不小于 1重量% %但不大于10wt。 %。 根据本发明,通过向聚丙烯中添加不含直径10μm以上的平均粒径为1μm以下的无机氧化物或氢氧化物,可以进一步提高介电击穿电压, 有机聚硅烷,马来酸酐接枝的聚丙烯或含有至少一个有机聚醚基团的硅烷化合物。

    Production process of ABS resin, ABS resin, and ABS-polycarbonate resin composition making use of the same
    7.
    发明授权
    Production process of ABS resin, ABS resin, and ABS-polycarbonate resin composition making use of the same 失效
    ABS树脂,ABS树脂和ABS-聚碳酸酯树脂组合物的生产工艺使用相同

    公开(公告)号:US06391965B1

    公开(公告)日:2002-05-21

    申请号:US08861657

    申请日:1997-05-22

    IPC分类号: C08F27904

    摘要: A process is disclosed for the continuous production of an ABS resin. The polymerization step comprises at least two substeps, one being a first-stage substep of forming particles of the rubbery polymer and the other a second-stage substep of adjusting the particle sizes of the particles. The first-stage substep is conducted in a polymerization system making use of a plug flow reactor or a batch polymerization reactor, and conducts polymerization at least until the particles are formed in the polymerization mixture. The second-stage substep increases a converted amount of the monomer component into the polymer compared with that in the particle forming substep and makes the particles smaller. A polycarbonate-ABS resin composition is also disclosed.

    摘要翻译: 公开了用于连续生产ABS树脂的方法。 聚合步骤包括至少两个子步骤,一个是形成橡胶状聚合物颗粒的第一阶段子步骤,另一个是调整颗粒的粒度的第二阶段子步骤。 第一级子步骤在使用活塞流反应器或间歇式聚合反应器的聚合系统中进行,并进行至少直至聚合混合物中形成颗粒的聚合。 第二级子步骤将单体组分转化成聚合物,与颗粒形成子步骤相比,使颗粒更小。 还公开了一种聚碳酸酯-ABS树脂组合物。

    Styrene resin and resin composition comprising the same
    8.
    发明授权
    Styrene resin and resin composition comprising the same 有权
    苯乙烯树脂及其组合物

    公开(公告)号:US06376605B1

    公开(公告)日:2002-04-23

    申请号:US09245065

    申请日:1999-02-05

    IPC分类号: C08F800

    摘要: A styrene resin is disclosed having excellent moldability and physical properties and is suited for recycling; and a thermoplastic polycarbonate composition with the styrene resin. The styrene resin contains 50 to 90 wt. % of a continuous phase component (S) composed of a copolymer of a styrene monomer, an unsaturated nitrile monomer; and 10 to 50 wt. % of a dispersed phase component on which said monomers have been grafted and which has occluded said copolymer. In the styrene resin, no triple chain unit AAA is detected from the unsaturated nitrite monomer component (A) in the continuous phase component (S) and a double chain unit AA amounts to 3% or less based on the whole units (A) detected.

    摘要翻译: 公开了具有优异的成型性和物理性能并且适于再循环的苯乙烯树脂; 和具有苯乙烯树脂的热塑性聚碳酸酯组合物。 苯乙烯树脂含有50〜90wt。 %的由苯乙烯单体,不饱和腈单体的共聚物组成的连续相组分(S) 和10〜50wt。 %的所述单体已经在其上接枝并且已经封闭所述共聚物的分散相组分。 在苯乙烯树脂中,连续相成分(S)中不饱和亚硝酸酯单体成分(A)不检测到三链单元AAA,双链单元AA相对于检测到的全部单元(A)为3%以下 。

    Process for the purification of riboflavine-5'-monophosphate
    9.
    发明授权
    Process for the purification of riboflavine-5'-monophosphate 失效
    核黄素-5'-单磷酸的纯化方法

    公开(公告)号:US4476304A

    公开(公告)日:1984-10-09

    申请号:US409809

    申请日:1982-08-20

    CPC分类号: C07F9/65618

    摘要: A process for the purification of riboflavine-5'-monophosphate comprising subjecting crude riboflavine-5'-monophosphate to chromatography using a column packed with a weakly basic anion-exchange resin having a skeleton of a crosslinked polyacrylic acid ester or polymethacrylic acid ester in which at least a part of the ester linkages thereof are converted into amide linkages represented by the following formula (1): ##STR1## to obtain a fraction of riboflavine-5'-monophosphate containing a reduced amount of impurities from an eluate of the column is disclosed.

    摘要翻译: 一种用于纯化核黄素-5'-单磷酸的方法,包括使用含有交联聚丙烯酸酯或聚甲基丙烯酸酯骨架的弱碱性阴离子交换树脂的柱对粗核黄素-5'-单磷酸进行色谱分离,其中, 其酯键的至少一部分转化成由下式(1)表示的酰胺键:(1),从而获得含有来自洗脱液的洗脱液中少量杂质的核黄素-5'-一磷酸的级分 该列被公开。

    Strongly basic anion exchange resin and process for its production
    10.
    发明授权
    Strongly basic anion exchange resin and process for its production 失效
    强碱性阴离子交换树脂及其生产工艺

    公开(公告)号:US5814672A

    公开(公告)日:1998-09-29

    申请号:US563825

    申请日:1995-11-28

    CPC分类号: B01J41/14 C08F8/44

    摘要: A strongly basic anion exchange resin of gel type having trimethylamine type quaternary ammonium groups and a cross-linked three dimensional polymer structure formed by copolymerization of a monovinyl aromatic monomer with a cross-linkable aromatic monomer, wherein the water content X (wt %) of the resin with counter ions being a standard type (chlorine type) and the salt-splitting capacity Y (meq/g-Resin) are in a relation represented by the following formula (1) or (2): Y.gtoreq.0.0214X+3.26 (1) provided 50

    摘要翻译: 具有三甲胺型季铵基的凝胶型强碱性阴离子交换树脂和通过单乙烯基芳族单体与可交联芳族单体的共聚形成的交联三维聚合物结构,其中水含量X(wt%)为 具有抗衡离子的树脂是标准型(氯型)和盐分解能力Y(meq / g-Resin)为由下式(1)或(2)表示的关系:Y> / = 0.0214X +3.26(1)提供40 / = 0.0722X + 0.711(2)提供40