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. A graft modified ethylene/.alpha.-olefin copolymer obtained by graft polymerizing the above-mentioned ethylene/.alpha.-olefin copolymer with a polar monomer. An ethylene copolymer composition comprising the above-mentioned graft modified ethylene/.alpha.-olefin copolymer and polyolefin. The ethylene/.alpha.-olefin copolymer of the invention is excellent in moldability. From this copolymer, a film having high transparency and high mechanical strength can be produced. The graft modified ethylene/.alpha.-olefin copolymer of the invention is excellent in heat stability and moldability. From this copolymer, a film having high transparency and good adhesion to highly polar materials can be produced. The ethylene copolymer composition of the invention is excellent in heat stability and moldability. From this composition, a film having high transparency and good adhesion to highly polar materials can be produced.
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:
The present invention provides an ethylene copolymer comprising constituent units (a) derived from ethylene and constituent units (b) derived from an .alpha.-olefin having 3 to 20 carbon atoms, the ethylene copolymer being characterized in that(A) the ethylene copolymer has a density (d) of 0.86 to 0.95 g/cm.sup.3 ;(B) the ethylene copolymer has a MFR of 0.001 to 50 g/10 min as measured at a temperature of 190.degree. C. and a load of 2.16 kg;(C) the melt tension (MT) and MFR of the ethylene copolymer satisfy the relationlog MT>-0.66 log MFR+0.6; and(D) the temperature (T) at which the exothermic curve of the ethylene copolymer measured by a differential scanning calorimeter (DSC) shows the highest peak and the density (d) satisfy the relationT
摘要:
The present invention provides an ethylene copolymer comprising constituent units (a) derived from ethylene and constituent units (b) derived from an .alpha.-olefin having 3 to 20 carbon atoms, the ethylene copolymer being characterized in that (A) the ethylene copolymer has a density (d) of 0.86 to 0.95 g/cm.sup.3 ; (B) the ethylene copolymer has a MFR of 0.001 to 50 g/10 min as measured at a temperature of 190.degree. C. and a load of 2.16 kg; (C) the melt tension (MT) and MFR of the ethylene copolymer satisfy the relation log MT>-0.66log MFR+0.6; and (D) the temperature (T) at which the exothermic curve of the ethylene copolymer measured by a differential scanning calorimeter (DSC) shows the highest peak and the density (d) satisfy the relation T
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:
A graft-modified ethylene/.alpha.-olefin copolymer composition is prepared by graft copolymerizing an ethylene/.alpha.-olefin copolymer. The ethylene/.alpha.-olefin copolymer composition includes first and second ethylene/.alpha.-olefin copolymers. The copolymers are each prepared in the presence of a polymerization catalyst containing (a) an organoaluminum oxy compound and (b) for the first ethylene/.alpha.-olefin copolymer at least two kinds, and for the second ethylene/.alpha.-olefin copolymer one kind, of compounds of Group IV transition metals of the periodic table containing a ligand having a cyclopentadienyl skeleton. The ethylene/.alpha.-olefin copolymer composition may be blended with a polyolefin by mechanical or solution blending. The copolymer compositions have excellent moldability and heat stability properties and forms films having high transparency and mechanical strength.
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.
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:
An ethylene/.alpha.-olefin copolymer composition containing a first and second ethylene/.alpha.-olefin copolymer is disclosed. The first ethylene/.alpha.-olefin copolymer is prepared in the prsence of a polymerization catalyst containing an organoaluminum oxy compound and at least two kinds of metallocene compounds (b) and the second ethylene/.alpha.-olefin copolymer, which differs from the first in at least one physical property, is prepared in the presence of a polymerization catalyst containing an organoaluminum oxy compound and a metallocene compound (b'). The ethylene/.alpha.-olefin copolymer composition has excellent moldability and heat stability properties and forms films having high transparency and mechanical strength.
摘要:
The present invention relates to a solid catalyst composed of a specific solid catalyst component [A-1], the catalyst containing the solid catalyst and the olefin polymerization process using the solid catalyst, in which the solid catalyst component [A-1] comprises; (a-1) a particulate carrier composed of a specific oxide of a metal; (a-2) an organoaluminum oxy compound; and (a-3) a specific transition metal compound containing a specific ligand, wherein the organoaluminum oxy compound (a-2) and the transition metal compound (a-3) are supported on the particulate carrier (a-1).The catalysts are applicable to a suspension polymerization and a vapor phase polymerization, and capable of preparing spherical olefin polymers excellent in particle characteristics at high polymerization activity.