中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

14 records (took 0.015 seconds)

    Polymerization catalyst systems and processes therefor and therewith
    2.
    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

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

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

    IPC: C08F452

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

    Abstract: 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.

    Abstract translation: 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 making smooth plastic tubing
    3.
    发明授权
    Process for making smooth plastic tubing 失效
    制造光滑塑料管的工艺

    公开(公告)号：US5102611A

    公开(公告)日：1992-04-07

    申请号：US525420

    申请日：1990-05-18

    Applicant: Al R. Wolfe ,  David R. Battiste ,  Harry E. Straw

    Inventor： Al R. Wolfe ,  David R. Battiste ,  Harry E. Straw

    IPC: B29C47/88 ,  B29C47/90

    CPC classification number: B29C47/903 ,  B29C47/0023 ,  B29C47/882 ,  B29C47/8865 ,  B29C47/904 ,  B29K2105/16 ,  B29K2995/0073 ,  Y10S264/78

    Abstract: A process for forming plastic tubing which involves extruding a molten plastic composition through a die which produces an extended length of plastic tubing, passing the hot tubing through a vacuum sizing tube wherein the wall of the tubing is sized by being drawn to the wall of the sizing tube by a vacuum, and cooling the sized tubing so that the tubing will be self-supporting at normal ambient temperatures, wherein the plastic composition contains a phosphorus-containing additive in an amount sufficient to cause an improvement in the smoothness of the interior of said tubing.

    Abstract translation: 一种用于形成塑料管的方法，其包括将熔融的塑料组合物挤出通过模具，其产生延长的塑料管的长度，使热管通过真空施胶管，其中管的壁通过被拉到 通过真空定径管，并且冷却尺寸的管道，使得管道将在正常环境温度下自支撑，其中塑料组合物含有足以引起内部平滑度提高的含磷添加剂 所说的油管。

    Process to produce polymers
    6.
    发明授权
    Process to produce polymers 有权
    生产聚合物的方法

    公开(公告)号：US06495638B2

    公开(公告)日：2002-12-17

    申请号：US09222659

    申请日：1998-12-30

    Applicant: Max P. McDaniel ,  Elizabeth A. Benham ,  Al R. Wolfe

    Inventor： Max P. McDaniel ,  Elizabeth A. Benham ,  Al R. Wolfe

    IPC: C08F422

    CPC classification number: C08F10/00 ,  C08F10/02 ,  C08F210/16 ,  C08F2410/04 ,  C08F4/69 ,  C08F4/646 ,  C08F4/24 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/07

    Abstract: A process is provided to produce a catalyst system. The process comprises blending a first component and a second component. The first component of the catalyst system comprises chromium on a support. The amount of chromium on the support is from about 0.05 to about 5 weight percent based on the weight of the support. The support comprises fluorided alumina. The support has a surface area from about 200 to about 550 square meters per gram and a pore volume from about 0.7 to about 2.5 cubic centimeters per gram. The first component is activated at a temperature in the range of about 500° C. to about 900° C. The second component is a transition metal halide catalyst. A process comprising polymerizing ethylene or copolymerizing ethylene and at least one other monomer using the catalyst system to produce ethylene polymers is also provided.

    Abstract translation: 提供了一种制备催化剂体系的方法。 该方法包括混合第一组分和第二组分。 催化剂体系的第一组分在载体上包含铬。 基于载体的重量，载体上的铬的量为约0.05至约5重量％。 载体包括氟化氧化铝。 载体的表面积为约200至约550平方米/克，孔体积为约0.7至约2.5立方厘米/克。 第一组分在约500℃至约900℃的温度下活化。第二组分是过渡金属卤化物催化剂。 还提供了使用催化剂体系聚合乙烯或使乙烯和至少一种其它单体共聚以生产乙烯聚合物的方法。

    Polyolefin resin formulation using organic pigments
    8.
    发明授权
    Polyolefin resin formulation using organic pigments 失效
    使用有机颜料的聚烯烃树脂配方

    公开(公告)号：US5266616A

    公开(公告)日：1993-11-30

    申请号：US729516

    申请日：1991-07-12

    Applicant: Al R. Wolfe

    Inventor： Al R. Wolfe

    IPC: C08K5/134 ,  C08K5/3417 ,  C08K5/3492 ,  C08K5/526 ,  C08K5/524 ,  C08K5/3435

    CPC classification number: C08K5/3492 ,  C08K5/134 ,  C08K5/3417 ,  C08K5/526

    Abstract: This invention concerns a resin formulation for an organically pigment polyolefin resin suitable for tubing and pipe service. The resin formulation is comprised of ethylene polymers, a UV stabilizer, an antioxidant, and a tetrachloroisoindolinone pigment. The resulting resin possesses excellent heat stability and color fastness. The dilute concentration of organic pigment in the inventive formulation presents a cost acceptable alternative to the widely- and routinely-used cadmium- and lead-bearing dyes and pigments which are classified as toxic chemicals under SARA Title III Section 313.

    Abstract translation: 本发明涉及适用于管道和管道服务的有机颜料聚烯烃树脂的树脂配方。 树脂配方由乙烯聚合物，UV稳定剂，抗氧化剂和四氯异吲哚啉酮颜料组成。 所得树脂具有优异的热稳定性和色牢度。 本发明制剂中有机颜料的稀释浓度对于广泛和常规使用的镉和铅含量染料和颜料而言是成本可接受的替代品，根据SARA标题III第313节，它们被分类为有毒化学品。

    Process for producing polymers
    10.
    发明申请
    Process for producing polymers 审中-公开
    生产聚合物的方法

    公开(公告)号：US20090124768A1

    公开(公告)日：2009-05-14

    申请号：US12231443

    申请日：2008-09-02

    Applicant: Max P. McDaniel ,  Elizabeth A. Benham ,  Al R. Wolfe

    Inventor： Max P. McDaniel ,  Elizabeth A. Benham ,  Al R. Wolfe

    IPC: C08F4/69

    CPC classification number: C08F10/00 ,  C08F210/16 ,  C08F2410/04 ,  C08F4/69 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/13 ,  C08F2500/17 ,  C08F2500/05 ,  C08F4/6492 ,  C08F4/6543 ,  C08F4/6557

    Abstract: Catalyst systems for producing olefin polymers, methods of making such catalyst systems, and processes for producing olefin polymers using such catalyst systems are provided. The catalyst system comprises a first component and a second component, where the first component comprises chromium on a support, where the support comprises phosphated alumina, and the second component comprises: (1) a metal halide compound, a transition metal compound, and a precipitating agent, or (2) a substituted or unsubstituted dicyclopentadienyl chromium compound deposited onto a calcined oxide carrier, where the carrier includes silica, alumina, aluminophosphate, or any mixed oxide thereof.

    Abstract translation: 提供了用于生产烯烃聚合物的催化剂体系，制备这种催化剂体系的方法，以及使用这种催化剂体系生产烯烃聚合物的方法。 催化剂体系包括第一组分和第二组分，其中第一组分在载体上包含铬，其中载体包含磷酸化氧化铝，第二组分包括：（1）金属卤化物化合物，过渡金属化合物和 沉淀剂，或（2）沉积到煅烧氧化物载体上的取代或未取代的二环戊二烯基铬化合物，其中载体包括二氧化硅，氧化铝，磷酸铝或其任何混合氧化物。

Patent Agency Ranking