Preparation of a supported catalyst for the polymerization of
.alpha.-olefins
    1.
    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.

    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: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.

    Preparation of homopolymers of ethylene or copolymers of ethylene
    3.
    发明授权
    Preparation of homopolymers of ethylene or copolymers of ethylene 失效
    制备乙烯均聚物或乙烯共聚物

    公开(公告)号:US5414064A

    公开(公告)日:1995-05-09

    申请号:US274692

    申请日:1994-07-14

    摘要: Homopolymers of ethylene or copolymers of ethylene with minor amounts of other C.sub.3 -C.sub.12 -alk-1-enes are prepared by catalytic polymerization in a suspension or in the gas phase in the presence of an antistatic agent at from 50 to 120.degree. C. and from 5 to 50 bar by a process in which the antistatic agent used is a mixture of the following substances:a) a metal salt of medialanic acid of the formula (I) ##STR1## b) a metal salt of an anthranilic acid of the general formula (II) ##STR2## where the organic radical R.sup.1 is either.alpha.)--CO--(CH.sub.2).sub.x --CH.sub.3 (II.alpha.)or.beta.)--CO--(CH.sub.2).sub.y --CH.dbd.CH--(CH.sub.2).sub.z --CH.sub.3(III.beta.)and x, y and z are each an integer and are from 6 to 18 for x, from 1 to 16 for y, from 1 to 16 for z and from 4 to 17 for y+z, andc) a polyamine obtainable by reacting epichlorohydrin and an aliphatic primary monoamine or an N-alkylalkylenediamine of the general formula (IV)R.sup.2 NH--R.sup.3 --NH.sub.2 (IV),whereR.sup.2 is C.sub.8 -C.sub.24 -alkyl andR.sup.3 is C.sub.2 -C.sub.6 -alkylene.

    摘要翻译: 乙烯均聚物或乙烯与少量其它C 3 -C 12烷-1-烯的共聚物通过在50至120℃的抗静电剂存在下在悬浮液或气相中催化聚合制备,以及 使用的抗静电剂为以下物质的混合物的方法为5〜50巴:a)式(I)的中间体金属盐(a)b)邻氨基苯甲酸的金属盐 通式(II)的酸其中有机基团R1是α)-CO-(CH2)x-CH3(IIa)或β)-CO-(CH2)y-CH = CH - (CH 2)z -CH 3(IIIβ),x,y和z各自为整数,x为6至18,y为1至16,z为1至16,y为4至17 + z,和c)通过使表氯醇和通式(IV)R 2 NH-R 3 -NH 2(IV)的脂族伯单胺或N-烷基亚烷基二胺反应得到的多胺,其中R 2是C 8 -C 24 - 烷基,R 3是C 2 -C 6-亚烷基。

    Preparation of homo- and copolymers of alk-1-enes
    4.
    发明授权
    Preparation of homo- and copolymers of alk-1-enes 失效
    烷-1-烯的均聚物和共聚物的制备

    公开(公告)号:US06197901B1

    公开(公告)日:2001-03-06

    申请号:US08935664

    申请日:1997-09-23

    IPC分类号: C08F408

    摘要: Polyalk-1-enes are prepared by polymerization of alk-1-enes with the aid of the compound bis(cyclopentadienyl)-chromium(II) in which the cyclopentadienyl rings may carry inert organic radicals, said compound being adsorbed on an inorganic oxide carrier, by a process in which the polymerization is carried out in the presence of an organometallic compound of a metal of main groups I to III or of a metal hydride, in particular of n-butyl-lithium.

    摘要翻译: 聚炔-1-烯通过在其中环戊二烯基环可以携带惰性有机基团的化合物双(环戊二烯基) - 铬(II)的聚合反应制备烷-1-烯,所述化合物被吸附在无机氧化物载体上 通过在主要I〜III族金属或金属氢化物,特别是正丁基锂的金属的有机金属化合物的存在下进行聚合的方法。

    Production of polyoxymethylene and suitable (II) catalysts
    5.
    发明申请
    Production of polyoxymethylene and suitable (II) catalysts 失效
    聚甲醛和合适的(II)催化剂的生产

    公开(公告)号:US20050148755A1

    公开(公告)日:2005-07-07

    申请号:US10510477

    申请日:2003-04-10

    CPC分类号: C08G2/06 C07F17/00 C08G2/08

    摘要: A process is described for preparing polyoxymethylene by contacting a formaldehyde source with a catalyst of the formula I [CpvMLw]m+Zm/nn−  (I) where M is Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh or Ir, Cp is a cyclopentadienyl ligand C5H(5−u)R1u, where u is from 0 to 5 and R1 is alkyl, alkenyl, aryl, heteroaryl, aralkyl, COOR2, COR2, CN or NO2, and R2 is H, alkyl, aryl or aralkyl, v is 1 or 2, each L is independently a nitrile, CO or a ligand displaceable by CO, w is an integer from 0 to 4, Z is an anion, and m and n are each independently an integer from 1 to 3.

    摘要翻译: 描述了通过使甲醛源与式I的催化剂接触来制备聚甲醛的方法,该方法式为:式中:=“引线”→[Cp (I) =“In-line Formulas”end =“tail”?>其中M是Ti,Zr,Hf,V,Nb,Ta,Cr,Mo,W,Mn,Re,Fe,Ru,Os,Co,Rh或Ir ,Cp是环戊二烯基配体C 5 H(5-u)R 1,其中u是 0至5,R 1是烷基,烯基,芳基,杂芳基,芳烷基,COOR 2,COR 2,CN或NO 2,R 2是H,烷基,芳基或芳烷基,v是1或2,每个L独立地是腈,CO或可被CO取代的配体,w是整数 0至4,Z是阴离子,m和n各自独立地为1至3的整数。

    Multistage graft copolymer and its use for the preparation of
transparent PVC molding materials
    6.
    发明授权
    Multistage graft copolymer and its use for the preparation of transparent PVC molding materials 失效
    多层共聚物及其制备透明PVC模塑材料的用途

    公开(公告)号:US5247025A

    公开(公告)日:1993-09-21

    申请号:US844316

    申请日:1992-03-02

    IPC分类号: C08F2/22 C08F285/00 C08L51/00

    摘要: Graft copolymers obtained byA) emulsion polymerization of from 5 to 35% by weight of a monomer mixture ofa.sub.1) 60-80% by weight of one or more vinylaromatic monomers,a.sub.2) 20-40% by weight of one or more ethylenically unsaturated nitriles,B) subsequent emulsion polymerization, in the presence of the emulsion polymer obtained in stage A), of 20-45% by weight of a monomer mixture ofb.sub.1) 50-75% by weight of one or more vinylaromatic monomers,b.sub.2) 25-50% by weight of one or more C.sub.1 -C.sub.18 -alkyl acrylates,C) subsequent emulsion polymerization, in the presence of the emulsion polymer obtained in stage B), of 5-35% by weight of a monomer mixture ofc.sub.1) 60-80% by weight of one or more vinylaromatic monomers,c.sub.2) 20-40% by weight of one or more ethylenically unsaturated nitriles,D) subsequent emulsion polymerization, in the presence of the emulsion polymer obtained in stage C), of 15-45% by weight of a monomer mixture ofd.sub.1) 80-99.9% by weight of one or more C.sub.1 -C.sub.18 -alkyl acrylates,d.sub.2) 0.1-0% by weight of one or more di- or polyethylenically unsaturated monomers.The graft copolymers can be used for the preparation of transparent PVC molding materials.

    摘要翻译: 通过A)乳液聚合获得的接枝共聚物,其通过5重量%至35重量%的a1)60-80重量%的一种或多种乙烯基芳族单体的混合物,a2)20-40重量%的一种或多种烯属不饱和单体 腈)B)在步骤A)中得到的乳液聚合物存在下,随后的乳液聚合为20-45重量%的b1)50-75重量%的一种或多种乙烯基芳族单体的单体混合物,b2) 25-50重量%的一种或多种丙烯酸C 1 -C 18烷基酯,C)在步骤B)中获得的乳液聚合物存在下,随后的乳液聚合为5-35重量%的单体混合物c1) 60-80重量%的一种或多种乙烯基芳族单体,c2)20-40重量%的一种或多种烯键式不饱和腈,D)在步骤C)中获得的乳液聚合物存在下的随后乳液聚合为15 -45重量%的d1)80-99.9重量%的一种或多种C1-C18烷基丙烯酸酯的单体混合物,d2)0.1-0% 一种或多种二烯或多烯属不饱和单体的重量。 接枝共聚物可用于制备透明PVC成型材料。