摘要:
In accordance with the present invention, there are provided ethylene copolymers composed of structural units (a) derived from ethylene and structural units (b) derived from .alpha.-olefin of 3.about.20 carbon atoms, said ethylene copolymers having[A] a density of 0.85.about.0.92 g/cm.sup.3,[B] an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 0.1.about.10 dl/g,[C] a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by GPC of 1.2.about.4, and[D] a ratio (MFR.sub.10 /MFR.sub.2) of MFR.sub.10 under a load of 10 kg to MFR.sub.2 under a load of 2.16 kg at 190.degree. C. of 8.about.50, and being narrow in molecular weight distribution and excellent in flowability.
摘要:
In accordance with the present invention, there are provided ethylene copolymers composed of structural units (a) derived from ethylene and structural units (b) derived from .alpha.-olefin of 3.about.20 carbon atoms, said ethylene copolymers having[A] a density of 0.85.about.0.92 g/cm.sup.3,[B] an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 0.1-10 dl/g,[C] a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by GPC of 1.2.about.4, and[D] a ratio (MFR.sub.10 /MFR.sub.2) of MFR.sub.10 under a load of 10 kg to MFR.sub.2 under a load of 2.16 kg at 190.degree. C. of 8.about.50, and being narrow in molecular weight distribution and excellent in flowability.
摘要翻译:根据本发明,提供由乙烯衍生的结构单元(a)和衍生自碳原子数3〜20的α-烯烃的结构单元(b)组成的乙烯共聚物,所述乙烯共聚物的[A]密度为 0.85差异0.92g / cm 3,[B]在135℃萘烷中测定的特性粘度η为0.1-10dl / g,[C]比率(+ E,ovs M + EE w / + E ,ovs M + EE n)的重均分子量(+ E,ovs M + EE w)至数均分子量(+ E,ovs M + EE n) D]在10℃的负荷下MFR10的MFR10与MFR2的摩尔比(MFR 10 / MFR 2)在190℃时的摩尔比为2.16kg,分子量分布窄,流动性优异。
摘要:
A solid catalyst for polymerizing an olefin is prepared from an organometallic compound, a fine-particle carrier, an aluminoxane, a compound of group IVB transition metal in periodic table, and an olefin polymer produced in a preliminary polymerization. The catalyst has a high polymerization activity and is capable of producing an olefin polymer having a narrow molecular- weight distribution. When the catalyst is used for producing an olefin copolymer, the resulting copolymer has both narrow molecular-weight distribution and composition distribution.
摘要:
In accordance with the present invention, there are provided ethylene copolymers composed of structural units (a) derived from ethylene and structural units (b) derived from .alpha.-olefin of 3-20 carbon atoms, said ethylene copolymers having�A! a density of 0.85-0.92 g/cm.sup.3,�B! an intrinsic viscosity �.eta.! as measured in decalin at 135.degree. C. of 0.1-10 dl/g,�C! a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by GPC of 1.2-4, and�D! a ratio (MFR.sub.10 /MFR.sub.2) of MFR.sub.10 under a load of 10 kg to MFR.sub.2 under a load of 2.16 kg at 190.degree. C. of 8-50, and being narrow in molecular weight distribution and excellent in flowability.
摘要翻译:根据本发明,提供了由衍生自乙烯的结构单元(a)和由3-20个碳原子的α-烯烃衍生的结构单元(b)组成的乙烯共聚物,所述乙烯共聚物具有[A] 0.85〜0.92g / cm 3,[135]萘烷中在135℃下测定的特性粘度η为0.1-10dl / g,[C]比率(+ E,ovs M + EE w / + E ,ovs M + EE n)的重均分子量(+ E,ovs M + EE w)与通过GPC测定的数均分子量(+ E,ovs M + EE n) D]在10℃负荷下MFR10的MFR10与MFR2在190℃时的负载为2.16kg的比率(MFR10 / MFR2)为8〜50,分子量分布窄,流动性优异。
摘要:
In accordance with the present invention, there are provided ethylene copolymers composed of structural units (a) derived from ethylene and structural units (b) derived from .alpha.-olefin of 3.about.20 carbon atoms, said ethylene copolymers having �A! a density of 0.85.about.0.92 g/cm.sup.3, �B! an intrinsic viscosity �.eta.! as measured in decalin at 135.degree. C. of 0.1.about.10 dl/g, �C! a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by GPC of 1.2.about.4, and �D! a ratio (MFR.sub.10 /MFR.sub.2) of MFR.sub.10 under a load of 10 kg to MFR.sub.2 under a load of 2.16 kg at 190.degree. C. of 8.about.50, and being narrow in molecular weight distribution and excellent in flowability.
摘要翻译:根据本发明,提供由乙烯衍生的结构单元(a)和衍生自碳原子数3〜20的α-烯烃的结构单元(b)组成的乙烯共聚物,所述乙烯共聚物的[A]密度为 0.85差异0.92g / cm 3,[B]在135℃萘烷中测得的特性粘度η为0.1Dd / g,[C]比率(+ E,ovs M + EE w / + E ,ovs M + EE n)的重均分子量(+ E,ovs M + EE w)至数均分子量(+ E,ovs M + EE n) D]在10℃的负荷下MFR10的MFR10与MFR2的摩尔比(MFR 10 / MFR 2)在190℃时的摩尔比为2.16kg,分子量分布窄,流动性优异。
摘要:
In accordance with the present invention, there are provided ethylene copolymers composed of structural units (a) derived from ethylene and structural units (b) derived from .alpha.-olefin of 3.about.20 carbon atoms, said ethylene copolymers having[A] density of 0.85.about.0.92 g/cm.sup.3,[B] an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 0.1.about.10 dl/g,[C] a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by GPC of 1.2.about.4, and[D] a ratio (MFR.sub.10 /MFR.sub.2) of MFR.sub.10 under a load of 10 kg to MFR.sub.2 under a load of 2.16 kg at 190.degree. C. of 8.about.50, and being narrow in molecular weight distribution and excellent in flowability.
摘要:
A process for olefin polymerization, including polymerizing or copolymerizing an olefin in the presence of an olefin polymerization catalyst composed of: a fine particle carrier; (A) a transition metal compound of a Group IVB metal of the periodic table, containing a ligand having a cyclopentadienyl skeleton; (B) an aluminoxane compound; and optionally (C) an organoaluminum compound, wherein said aluminoxane compound has an alkyl groups to aluminum ratio of 1.3 to 2.1; said transition metal compound (A) and said organoaluminum oxy-compound (B) and said organoaluminum compound being supported on the fine particle carrier; and said solid catalyst having a bulk density of 0.3 g/cm.sup.3 to 0.5 g/cm.sup.3 and a fluidity index of 45 to 70 and an olefin polymerization process using the olefin polymerization catalyst; and an olefin prepolymerized catalyst obtained by prepolymerizing the catalyst, and an olefin polymerization process using the olefin prepolymerized catalyst. The olefin polymerization process produces a polymer showing excellent particle properties and an olefin polymer which does not stick to the wall of the polymerization reactor.
摘要翻译:一种烯烃聚合方法,包括在烯烃聚合催化剂存在下聚合或共聚烯烃,所述烯烃聚合催化剂由微粒载体构成; (A)周期表第ⅣB族金属的过渡金属化合物,其含有具有环戊二烯基骨架的配位体; (B)铝氧烷化合物; 和任选地(C)有机铝化合物,其中所述铝氧烷化合物具有1.3至2.1的烷基与铝的比率; 所述过渡金属化合物(A)和所述有机铝氧化合物(B)和所述有机铝化合物负载在所述微粒载体上; 所述固体催化剂的体积密度为0.3g / cm 3〜0.5g / cm 3,流动性指数为45〜70,使用该烯烃聚合催化剂的烯烃聚合方法; 和通过使催化剂预聚合获得的烯烃预聚合催化剂和使用烯烃预聚合催化剂的烯烃聚合方法。 烯烃聚合方法产生显示出优异的颗粒性能的聚合物和不粘在聚合反应器壁上的烯烃聚合物。
摘要:
A solid olefin polymerization catalyst comprising: a fine particle carrier; (A) a transition metal compound of a Group IVB metal of the periodic table, containing a ligand having a cyclopentadienyl skeleton; (B) an organoaluminum oxy-compound; and optionally (C) an organoaluminum compound, wherein said organoaluminum oxy-compound has an alkyl to aluminum ratio of 1.3 to 2.1; said transition metal compound (A) and said organoaluminum oxy-compound (B) and said organoaluminum compound being supported on the fine particle carrier; and said solid catalyst having a bulk density of 0.3 g/cm.sup.3 to 0.5 g/cm.sup.3 and a fluidity index of 45 to 70 and an olefin polymerization process using the olefin polymerization catalyst; and an olefin prepolymerized catalyst obtained by prepolymerizing the catalyst, and an olefin polymerization process using the olefin prepolymerized catalyst. The olefin polymerization catalyst and the olefin prepolymerization catalyst when used to carry out the polymerization of olefins hardly produces a fine-powdery polymer and a polymer showing excellent particle properties can be obtained. Moreover, the resulting olefin polymer does not stick to the wall of the polymerization reactor.
摘要翻译:一种固体烯烃聚合催化剂,包括:细颗粒载体; (A)周期表第ⅣB族金属的过渡金属化合物,其含有具有环戊二烯基骨架的配位体; (B)有机铝氧化合物; 和任选的(C)有机铝化合物,其中所述有机铝氧化合物的烷基铝比例为1.3-2.1; 所述过渡金属化合物(A)和所述有机铝氧化合物(B)和所述有机铝化合物负载在所述微粒载体上; 所述固体催化剂的体积密度为0.3g / cm 3〜0.5g / cm 3,流动性指数为45〜70,使用该烯烃聚合催化剂的烯烃聚合方法; 和通过使催化剂预聚合获得的烯烃预聚合催化剂和使用烯烃预聚合催化剂的烯烃聚合方法。 当用于进行烯烃聚合的烯烃聚合催化剂和烯烃预聚合催化剂几乎不产生细粉状聚合物,并且可以获得显示出优异的颗粒性能的聚合物。 此外,所得烯烃聚合物不粘附到聚合反应器的壁。
摘要:
An ethylene/.alpha.-olefin copolymer obtained by copolymerizing ethylene with an .alpha.-olefin of 3 to 20 carbon atoms in the presence of a catalyst for olefin polymerization comprising an organoaluminum oxy-compound (a) and at least two kinds of transition metal compounds (b). This ethylene/.alpha.-olefin copolymer has high melt tension and high flowability.
摘要:
An olefin polymerization catalyst of the present invention comprises (A) a metallocene compound, (B) an organoaluminum oxy compound, and (C) at least one kind of carbonyl-containing compound selected from ketoalcohol and .beta.-diketone, and optionally (D) an organoaluminum compound, and therefore, the catalyst is excellent in polymerization activity per catalyst unit weight, and is capable of giving olefin (co)polymers having high molecular weight.A supported olefin polymerization catalyst and its olefin prepolymerized catalyst of the present invention are excellent in polymerization activity per catalyst unit weight, and is capable of giving olefin (co)polymers having uniform particle size.