Preparation of a supported catalyst for the polymerization of
.alpha.-olefins
    2.
    发明授权
    Preparation of a supported catalyst for the polymerization of .alpha.-olefins 失效
    制备用于α-烯烃聚合的负载型催化剂

    公开(公告)号:US5455216A

    公开(公告)日:1995-10-03

    申请号:US124047

    申请日:1993-09-21

    CPC分类号: C08F10/00

    摘要: A process for the preparation of a supported catalyst for the polymerization of .alpha.-olefins, in which(1) a silicon dioxide-containing support gel is prepared by(1.1) introducing a sodium water glass or potassium water glass solution into a swirling stream of an aqueous mineral acid longitudinally and tangentially to the stream, spraying the resultant silica hydrosol in drop form into a gaseous medium and allowing it to solidify to form a hydrogel, and freeing the resultant hydrogel from salts by washing without prior ageing,(1.2) drying the hydrogel resulting from (1.1) to form the support gel,(2) the support gel (1) is charged with chromium trioxide or a chromium compound which can be converted into chromium trioxide under the conditions of process step (3), giving a chromium-containing support gel, and(3) the chromium-containing support gel (2) is heated at from 400.degree. to 1100.degree. C. for from 10 to 1000 minutes in an anhydrous gas stream containing oxygen in a concentration of greater than 10% by volume,comprises drying the hydrogel resulting from step (1.1) in step (1.2) within a time of not more than 60 seconds in a shaping, high-speed dryer at an inlet temperature of from 80.degree. to 400.degree. C.

    摘要翻译: 一种制备用于α-烯烃聚合的负载催化剂的方法,其中(1)含二氧化硅的载体凝胶通过(1.1)将钠水玻璃或钾水玻璃溶液引入旋流 将水性无机酸纵向和切向于料流,将所得的二氧化硅水溶胶以液滴形式喷雾到气态介质中并使其固化形成水凝胶,并通过在没有预先熟化的情况下洗涤将所得水凝胶从盐中释放,(1.2)干燥 由(1.1)产生的形成支持凝胶的水凝胶,(2)载体凝胶(1)中加入三氧化铬或铬化合物,其可以在工艺步骤(3)的条件下转化为三氧化铬,得到 含铬载体凝胶,(3)含铬载体凝胶(2)在含有浓度浓度的氧的无水气流中在400〜1100℃下加热10〜1000分钟 大于10体积%包括在入口温度为80°至400°的成形高速干燥器中在不超过60秒的时间内将步骤(1.2)中由步骤(1.1)得到的水凝胶干燥 DEG C.

    Phillips catalyst and its use for preparing ethylene homopolymers and
copolymers
    4.
    发明授权
    Phillips catalyst and its use for preparing ethylene homopolymers and copolymers 失效
    菲利普斯催化剂及其用于制备乙烯均聚物和共聚物的用途

    公开(公告)号:US5324697A

    公开(公告)日:1994-06-28

    申请号:US904924

    申请日:1992-06-26

    CPC分类号: C08F10/02

    摘要: A novel Phillips catalyst for the homopolymerization of ethylene and the copolymerization of ethylene with .alpha.-olefins contains as catalytically active components a specific chromium catalyst on an aluminum phosphate support and cocatalysts of the formula I to IV, ##STR1## where M is lithium, sodium and potassium,M.sup.1 is magnesium and zinc,M.sup.2 is boron and aluminum,R is C.sub.1 -C.sub.10 -alkyl and C.sub.6 -C.sub.20 -aryl,R.sup.1 is R and C.sub.1 -C.sub.10 -alkoxy and C.sub.6 -C.sub.20 -aryloxy,X is chlorine, bromine and iodine,n is 0, 1 and 2The chromium catalyst on an aluminum phosphate support can be obtained by applying chromium compounds to a finely divided aluminum phosphate with a P:A1 molar ratio near to or equal to 1 and a pore volume of >1 cm.sup.3 /g and activating the resulting intermediate at elevated temperatures in an oxidizing atmosphere. The novel Phillips catalyst has an exceptionally long duration of activity and its productivity can be increased further by adding hydrogen.

    摘要翻译: 用于乙烯均聚和乙烯与α-烯烃共聚的新型菲利普斯催化剂在磷酸铝载体上含有特定的铬催化剂和式I至IV的助催化剂,MR(I)M1R2(II)M2R3的催化活性组分 -n1Xn(III)MM2RR31(IV)其中M是锂,钠和钾,M1是镁和锌,M2是硼和铝,R是C1-C10-烷基和C6-C20-芳基,R1是R和C1- C10烷氧基和C6-C20芳氧基,X是氯,溴和碘,n是0,1和2。磷酸铝载体上的铬催化剂可以通过将铬化合物施加到具有P: A1摩尔比接近或等于1,孔体积> 1cm 3 / g,并在氧化气氛中在高温下活化所得中间体。 新型菲利普斯催化剂具有非常长的活性持续时间,并且通过加入氢可以进一步提高其生产率。

    Rotation detection or speed pickup device for miniature d-c motor
    5.
    发明授权
    Rotation detection or speed pickup device for miniature d-c motor 失效
    微型d-c电机的旋转检测或速度检测装置

    公开(公告)号:US4914713A

    公开(公告)日:1990-04-03

    申请号:US242794

    申请日:1988-09-09

    摘要: In order to pick up in a simple manner which is reliable, and under rough operating conditions, a rotation of the rotor in a miniature motor excited by permanent magnets with magnet segments at a tangential distance with magnet segments distributed at the bore circumference of the stator, it is proposed to arrange in at least one pole gap between the magnet segment a measuring coil. A signal is induced by the pulsation of the stray field due to rotation of the rotor. The measuring coil is advantageously arranged in a non-magnetic, preferably plastic support body held between the individual poles or the magnet segments respectively.

    摘要翻译: 为了以简单的方式拾取可靠的并且在粗糙的操作条件下,转子在由具有磁体段的永磁体激励的微型电动机中,磁体段与分布在定子的孔圆周处的磁体段相切的距离 ,建议在磁体段之间的至少一个极间隙布置测量线圈。 由于转子的转动,杂散场的脉动引起信号。 测量线圈有利地布置在分别保持在各个极或磁体段之间的非磁性,优选塑性支撑体中。

    Phillips catalyst and its use for the preparation of
ethylene/alpha-olefin copolymers
    6.
    发明授权
    Phillips catalyst and its use for the preparation of ethylene/alpha-olefin copolymers 失效
    菲利普斯催化剂及其用于制备乙烯/α-烯烃共聚物的用途

    公开(公告)号:US5480852A

    公开(公告)日:1996-01-02

    申请号:US247479

    申请日:1994-05-23

    CPC分类号: C08F10/00

    摘要: A novel Phillips catalyst for the copolymerization of ethylene with .alpha.-olefins, contains, as a catalytically active component, a finely divided, aluminum silicate-supported, phosphorus-containing chromium catalyst. This can be prepared by applying at least one organic phosphorus(III), (IV) and/or (V) compound and at least one chromium(III) compound which does not react with said phosphorus compounds under the reaction conditions used, in succcession in any order or simultaneously, to a finely divided aluminum silicate hydrogel or xerogel with formation of a catalyst intermediate and activating the catalyst intermediate at elevated temperatures in an oxidizing atmosphere, with the result that the chromium catalyst is formed. The novel Phillips catalyst gives ethylene/.alpha.-olefin copolymers in which the comonomers are more uniformly distributed over the copolymer chains than is the case with ethylene/.alpha.-olefin copolymers which have been prepared with the aid of conventional Phillips catalysts. Moldings which have been produced from the ethylene/.alpha.-olefin copolymers obtained in the novel procedure have a particularly high environmental stress cracking resistance and an excellent creep rupture strength.

    摘要翻译: 用于乙烯与α-烯烃共聚的新颖的菲利普斯催化剂包含作为催化活性组分的细碎的含硅酸铝载体的含磷的铬催化剂。 这可以通过在所用的反应条件下施用至少一种不与所述磷化合物反应的有机磷(III),(IV)和/或(V)化合物和至少一种铬(III)化合物来制备, 以任何顺序或同时的方式,在形成催化剂中间体的细分的硅酸铝水凝胶或干凝胶中,并在氧化气氛中在高温下活化催化剂中间体,结果形成铬催化剂。 新型菲利普斯催化剂提供了乙烯/α-烯烃共聚物,其中共聚单体比共聚物链更均匀地分布在使用常规菲利普斯催化剂制备的乙烯/α-烯烃共聚物的情况下。 由新方法得到的乙烯/α-烯烃共聚物制成的成型品具有特别高的耐环境应力开裂性和优异的抗蠕变断裂强度。

    Phillips catalyst and its use for the preparation of
ethylene/.alpha.-olefin copolymers
    8.
    发明授权
    Phillips catalyst and its use for the preparation of ethylene/.alpha.-olefin copolymers 失效
    菲利普斯催化剂及其在制备乙烯/α-烯烃共聚物中的应用

    公开(公告)号:US5557021A

    公开(公告)日:1996-09-17

    申请号:US512556

    申请日:1995-08-08

    CPC分类号: C08F10/00

    摘要: A novel Phillips catalyst for the copolymerization of ethylene with .alpha.-olefins, contains, as a catalytically active component, a finely divided, aluminum silicate-supported, phosphorus-containing chromium catalyst. This can be prepared by applying at least one organic phosphorus(III), (IV) and/or (V) compound and at least one chromium(III) compound which does not react with said phosphorus compounds under the reaction conditions used, in succcession in any order or simultaneously, to a finely divided aluminum silicate hydrogel or xerogel with formation of a catalyst intermediate and activating the catalyst intermediate at elevated temperatures in an oxidizing atmosphere, with the result that the chromium catalyst is formed. The novel Phillips catalyst gives ethylene/.alpha.-olefin copolymers in which the comonomers are more uniformly distributed over the copolymer chains than is the case with ethylene/.alpha.-olefin copolymers which have been prepared with the aid of conventional Phillips catalysts. Moldings which have been produced from the ethylene/.alpha.-olefin copolymers obtained in the novel procedure have a particularly high environmental stress cracking resistance and an excellent creep rupture strength.

    摘要翻译: 用于乙烯与α-烯烃共聚的新颖的菲利普斯催化剂包含作为催化活性组分的细碎的含硅酸铝载体的含磷的铬催化剂。 这可以通过在所用的反应条件下施用至少一种不与所述磷化合物反应的有机磷(III),(IV)和/或(V)化合物和至少一种铬(III)化合物来制备, 以任何顺序或同时的方式,在形成催化剂中间体的细分的硅酸铝水凝胶或干凝胶中,并在氧化气氛中在高温下活化催化剂中间体,结果形成铬催化剂。 新型菲利普斯催化剂提供了乙烯/α-烯烃共聚物,其中共聚单体比共聚物链更均匀地分布在使用常规菲利普斯催化剂制备的乙烯/α-烯烃共聚物的情况下。 由新方法得到的乙烯/α-烯烃共聚物制成的成型品具有特别高的耐环境应力开裂性和优异的抗蠕变断裂强度。

    Process for spray-coating with frequent changes between aqueous and non-aqueous coating agents inside a spray-coating chamber
    9.
    发明授权
    Process for spray-coating with frequent changes between aqueous and non-aqueous coating agents inside a spray-coating chamber 失效
    在喷涂室内的水性和非水性涂料之间频繁变化的喷涂方法

    公开(公告)号:US06294221B1

    公开(公告)日:2001-09-25

    申请号:US09520812

    申请日:2000-03-08

    IPC分类号: B08B927

    摘要: A non-aqueous rinsing medium is disclosed, and a process for using same as a rinsing agent in a process for spray-coating of mass-produced substrates (such as automobile bodies) with frequent changes between at least one aqueous and at least one non-aqueous coating agent inside a spray-coating chamber, wherein with at least each change of coating agent the installations to be rinsed are rinsed automatically with the non-aqueous rinsing medium consisting of (a) 20 to 35% by weight of one or more N-alkyl pyrrolidones, (b) 20 to 35% by weight of butyl acetate and/or isobutyl acetate, (c) 10 to 20% by weight of one or more glycol ethers, which are water-miscible without miscibility gap, (d) 5 to 15% by weight of ethanol, propanol and/or isopropanol, (e) 10 to 20% by weight of one or more aliphatic C4-C7-ketones, (f) 0 to 5% by weight of one or more organic solvents conventionally used in coating agents, and (g) 0 to 5% by weight of one or more auxiliary agents, whereby components (a), (c) and (d) comprise 40 to 60% by weight of the total rinsing medium.

    摘要翻译: 公开了一种非水性漂洗介质,以及在大量生产的基材(例如汽车车身)的喷涂方法中使用其作为漂洗剂的方法,在至少一种含水和至少一种非水性漂洗介质之间频繁变化, - 水性涂布剂,其中至少每次更换涂布剂时,将要冲洗的装置用非水性漂洗介质自动冲洗,所述非水性漂洗介质由以下组成:(a)20至35重量%的一个或多个 N-烷基吡咯烷酮,(b)20-35%(重量)乙酸丁酯和/或乙酸异丁酯,(c)10-20%重量的一种或多种二醇醚,它们与水混溶而不混合间隙,(d )5至15重量%的乙醇,丙醇和/或异丙醇,(e)10至20重量%的一种或多种脂族C 4 -C 7 - 酮,(f)0至5重量%的一种或多种有机 涂料中通常使用的溶剂,(g)0-5重量%的一种或多种助剂,其中组分(a),(c)和(d) 占总洗涤介质的40〜60重量%。

    Preparation of a supported catalyst for the polymerization of
.alpha.-olefins
    10.
    发明授权
    Preparation of a supported catalyst for the polymerization of .alpha.-olefins 失效
    制备用于α-烯烃聚合的负载型催化剂

    公开(公告)号:US5625013A

    公开(公告)日:1997-04-29

    申请号:US422937

    申请日:1995-05-24

    CPC分类号: C08F10/00

    摘要: A process for the preparation of a supported catalyst for the polymerization of .alpha.-olefins, in which(1) a silicon dioxide-containing support gel is prepared by(1.1) introducing a sodium water glass or potassium water glass solution into a swirling stream of an aqueous mineral acid longitudinally and tangentially to the stream, spraying the resultant silica hydrosol in drop form into a gaseous medium and allowing it to solidify to form a hydrogel, and freeing the resultant hydrogel from salts by washing without prior ageing,(1.2) drying the hydrogel resulting from (1.1) to form the support gel,(2) the support gel (1) is charged with chromium trioxide or a chromium compound which can be converted into chromium trioxide under the conditions of process step (3), giving a chromium-containing support gel, and(3) the chromium-containing support gel (2) is heated at from 400.degree. to 1100.degree. C. for from 10 to 1000 minutes in an anhydrous gas stream containing oxygen in a concentration of greater than 10% by volume,comprises drying the hydrogel resulting from step (1.1) in step (1.2) within a time of not more than 60 seconds in a shaping, high-speed dryer at an inlet temperature of from 80.degree. to 400.degree. C.

    摘要翻译: 一种制备用于α-烯烃聚合的负载催化剂的方法,其中(1)含二氧化硅的载体凝胶通过(1.1)将钠水玻璃或钾水玻璃溶液引入旋流 将水性无机酸纵向和切向于料流,将所得的二氧化硅水溶胶以液滴形式喷雾到气态介质中并使其固化形成水凝胶,并通过在没有预先熟化的情况下洗涤将所得水凝胶从盐中释放,(1.2)干燥 由(1.1)产生的形成支持凝胶的水凝胶,(2)载体凝胶(1)中加入三氧化铬或铬化合物,其可以在工艺步骤(3)的条件下转化为三氧化铬,得到 含铬载体凝胶,(3)含铬载体凝胶(2)在含有浓度浓度的氧的无水气流中在400〜1100℃下加热10〜1000分钟 大于10体积%包括在入口温度为80°至400°的成形高速干燥器中在不超过60秒的时间内将步骤(1.2)中由步骤(1.1)得到的水凝胶干燥 DEG C.