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    • 1. 发明授权
    • Process for producing ethylene/alpha-olefin copolymer
    • 生产乙烯/α-烯烃共聚物的方法
    • US6153807A
    • 2000-11-28
    • US91733
    • 1993-07-14
    • Hidekuni OdaTatuo KinoshitaAkiyoshi Shimizu
    • Hidekuni OdaTatuo KinoshitaAkiyoshi Shimizu
    • C07C2/30C07C11/02C08F210/16C10L1/16C10M107/02C10M143/02C10M143/04C10M143/08C07C2/22C07C2/26
    • C10M143/08C07C11/02C07C2/30C08F210/16C10L1/1641C10M107/02C10M143/02C10M143/04C07C2527/133C07C2531/02C07C2531/14C07C2531/36C10M2205/00C10M2205/02C10M2205/0206C10M2205/022C10M2205/0225C10N2220/02Y02P20/52
    • A copolymer of ethylene and an alpha-olefin having an ethylene content of from 30 to 90 mole %, a number average molecular weight of from 300 to 30,000 and a molecular weight distribution defined by a Q value (the ratio of the weight average molecular weight to the number average molecular weight of not more than 3 and a Z value (the ratio of the maximum value of the molecular weight to the minimum value of the molecular weight when the molecular weight is measured by gel permeation chromatography) of from 15 to 200. The said copolymer can be produced by a process comprising copolymerizing ethylene with an alpha-olefin in the liquid phase in the presence of a polymerization catalyst composed of a combination of a soluble vanadium compound and an organoaluminum compound in the co-presence of hydrogen, characterized in that(a) the copolymerization is carried out in a continuous manner,(b) the concentration of the vanadium compound in the polymerization system is maintained at 0.3 to 30 millimoles/liter, and(c) the vanadium compound is supplied to the polymerization system as a solution in a polymerization medium in a concentration which is 1 to 5 times the concentration of the vanadium compound in the liquid phase. This compound is useful as a synthetic lubricant oil, a fuel oil additive and a lubricant oil additive.
    • 乙烯与α-烯烃的共聚物,乙烯含量为30〜90摩尔%,数均分子量为300〜30,000,分子量分布由Q值(重均分子量 数均分子量为3以下,Z值(分子量的最大值与分子量通过凝胶渗透色谱法测定时的分子量的最小值的比)为15〜200 所述共聚物可以通过包括在由氢气共存存在下由可溶性钒化合物和有机铝化合物的组合组成的聚合催化剂存在下在液相中共聚乙烯与α-烯烃的方法来制备, 其特征在于(a)共聚合是以连续的方式进行的,(b)聚合体系中的钒化合物的浓度保持在0.3〜30 毫摩尔/升,和(c)钒化合物作为聚合介质中的溶液以与液相中的钒化合物浓度的1至5倍的浓度一起供入聚合体系中。 该化合物可用作合成润滑油,燃油添加剂和润滑油添加剂。
    • 2. 发明授权
    • Ethylene/alpha-olefin copolymer
    • 乙烯/α-烯烃共聚物
    • US5955639A
    • 1999-09-21
    • US98236
    • 1993-07-29
    • Hidekuni OdaTatuo KinoshitaAkiyoshi Shimizu
    • Hidekuni OdaTatuo KinoshitaAkiyoshi Shimizu
    • C07C2/30C07C11/02C08F210/16C10L1/16C10M107/02C10M143/02C10M143/04C10M143/08
    • C10M143/08C07C11/02C07C2/30C08F210/16C10L1/1641C10M107/02C10M143/02C10M143/04C07C2527/133C07C2531/02C07C2531/14C07C2531/36C10M2205/00C10M2205/02C10M2205/0206C10M2205/022C10M2205/0225C10N2220/02Y02P20/52
    • A copolymer of ethylene and an alpha-olefin having an ethylene content of from 30 to 90 mole %, a number average molecular weight of from 300 to 30,000 and a molecular weight distribution defined by a Q value (the ratio of the weight average molecular weight to the number average molecular weight) of not more than 3 and a Z value (the ratio of the maximum value of the molecular weight to the minimum value of the molecular weight when the molecular weight is measured by gel permeation chromatography) of from 15 to 200. The said copolymer can be produced by a process comprising copolymerizing ethylene with an alpha-olefin in the liquid phase in the presence of a polymerization catalyst composed of a combination of a soluble vanadium compound and an organoaluminum compound in the co-presence of hydrogen, characterized in that(a) the copolymerization is carried out in a continuous manner,(b) the concentration of the vanadium compound in the polymerization system is maintained at 0.3 to 30 millimoles/liter, and(c) the vanadium compound is supplied to the polymerization system as a solution in a polymerization medium in a concentration which is 1 to 5 times the concentration of the vanadium compound in the liquid phase. This compound is useful as a synthetic lubricant oil, a fuel oil additive and a lubricant oil additive.
    • 乙烯与α-烯烃的共聚物,乙烯含量为30〜90摩尔%,数均分子量为300〜30,000,分子量分布由Q值(重均分子量 相对于数均分子量)为3以下且Z值(当通过凝胶渗透色谱法测定分子量时分子量的最大值与分子量的最小值的比)为15〜 所述共聚物可以通过包括使乙烯与α-烯烃在液相中在由氢的共存存在下由可溶性钒化合物和有机铝化合物的组合组成的聚合催化剂存在下共聚的方法来制备 其特征在于,(a)共聚合是以连续的方式进行的,(b)聚合体系中的钒化合物的浓度保持在0.3〜3 0毫摩尔/升,(c)钒化合物作为聚合介质中的溶液以浓度为液相中钒化合物浓度的1〜5倍的浓度供给聚合体系。 该化合物可用作合成润滑油,燃油添加剂和润滑油添加剂。