摘要:
A rubbery copolymer of ethylene, an .alpha.-olefin having 3 to 10 carbon atoms and a polyene, characterized by having (A) an ethylene/.alpha.-olefin mole ratio of from 50/50 to 95/5, (B) an iodine value of from 5 to 50, (C) an intrinsic viscosity [.eta.], measured in decaline at 135.degree. C., of from 1.0 to 6.0 dl/g, (D) a weight average molecular weight/number average molecular weight ratio (Mw/Mn) of from 3 to 15, and (E) an iodine value index .alpha..sub.1 for the lower molecular weight components and an iodine value index .alpha..sub.2 for the higher molecular weight components, said .alpha..sub.1 and .alpha..sub.2 falling within the ranges -30.ltoreq..alpha..sub.1 .ltoreq.0 and 0
摘要:
A rubbery copolymer of ethylene, 1-butene and a polyene, characterized by having (A) an ethylene/1-butene mole ratio of from 86/14 to 95/5, (B) an iodine value of from 2 to 40, (C) an intrinsic viscosity [.eta.], measured in decalin at 135.degree. C., of from 0.8 to 4 dl/g, and (D) a weight average molecular weight/number average molecular weight ratio (Mw/Mn) of less than 3; and a process for the production thereof.
摘要:
A random copolymer consisting essentially of 40 to 90 mole% of propylene and 60 to 10 mole% of 1-butene, and having (A) a boiling n-heptane-insoluble content of not more than 5% by weight based on the weight of the copolymer, (B) a boiling methyl acetate-soluble content of not more than 2% by weight based on the weight of the copolymer, (C) a melting point, determined by differential thermal analysis, of 40 to 140.degree. C., (D) an intrinsic viscosity, determined in decalin at 135.degree. C., of 0.5 to 6 dl/g, (E) an elongation at break, measured by JIS K6301, of at least 300%, (F) a tensile strength at break, measured by JIS K6301, of at least 50 kg/cm.sup.2, and (G) a haze, measured by JIS K6714, of not more than 40%.The above copolymer has superior properties for production of various kinds of melt-shaped articles such as films, sheets, vessels and tubes, and can be obtained by copolymerizing propylene and 1-butene in the presence of a catalyst prepared from a solid complex containing magnesium, titanium and halogen, an organometal compound of a metal of Groups I to III of the periodic table, and an electron donor.
摘要:
A random copolymer characterized in that (A) the copolymer comprises polymerized units from ethylene and polymerized units from at least one cycloolefin, (B) the mole ratio of the polymerized units from the cycloolefin to the polymerized units from ethylene is from 3:97 to 60:40, (C) the cycloolefin is incorporated in the polymer chain without ring opening, (D) the copolymer has an intrinsic viscosity of 0.01 to 20 dl/g, (E) the copolymer has a molecular weight distribution (Mw/Mn) of not more than 4, and (F) the copolymer has a crystallinity of 0 to 10%. The random copolymer may be grafted by (a) alpha, beta-unsaturated carboxylic acids and/or their derivatives, (b) styrenes, (c) organic silicon compounds having an olefinically unsaturated bond and a hydrolyzable group, or (d) unsaturated epoxy monomers. The random copolymer is produced by continuously copolymerizing ethylene with at least one cycloolefin in a hydrocarbon medium in the presence of a catalyst formed from a soluble vanadium compound and an organoaluminum compound while maintaining the atomic ratio of vanadium atoms to aluminum atoms in the reaction system, V/Al, at 2 or higher.
摘要翻译:一种无规共聚物,其特征在于(A)共聚物包括来自乙烯的聚合单元和来自至少一种环烯烃的聚合单元,(B)聚合单元与环烯烃的聚合单元与来自乙烯的聚合单元的摩尔比为3:97至 (D)共聚物的特性粘度为0.01〜20dl / g,(E)共聚物具有分子量分布(+ E, ovs M + EE w / + E,ovs M + EE n)不大于4,(F)共聚物的结晶度为0至10%。 无规共聚物可以通过(a)α,β-不饱和羧酸和/或其衍生物,(b)苯乙烯,(c)具有烯属不饱和键的有机硅化合物和可水解基团,或(d)不饱和环氧树脂 单体。 无规共聚物通过在由可溶性钒化合物和有机铝化合物形成的催化剂存在下在烃介质中连续共聚乙烯与至少一种环烯烃,同时保持钒原子与反应体系中铝原子的原子比, V / Al,2或更高。
摘要:
A random copolymer comprising ethylene, a 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene and optionally an alpha-olefin having at least three carbon atoms or cycloolefin. The mole ratio of polymerized units from the 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene to polymerized units from ethylene is from 3:97 to 95:5 and the 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene is incorporated in the polymer chain as polymerized units without ring-opening.The copolymer is prepared by copolymerizing ethylene with the 1,4,5,8-dimethano-1,2,3,4,4a,5,8,8a-octahydronaphthalene in a hydrocarbon medium in the presence of a catalyst formed from a vanadium compound and an organoaluminum compound which are soluble in the hydrocarbon medium.The copolymer has excellent transparency and a well balanced combination of heat resistance, heat aging resistance, chemical and solvent resistance, dielectric properties and mechanical properties such as rigidity.
摘要:
A random copolymer characterized in that (A) the copolymer comprises polymerized units from ethylene and polymerized units from at least one cycloolefin, (B) the mole ratio of the polymerized units from the cycloolefin to the polymerized units from ethylene is from 3:97 to 60:40, (C) the cycloolefin is incorporated in the polymer chain without ring opening, (D) the copolymer has an intrinsic viscosity of 0.01 to 20 dl/g, (E) the copolymer has a molecular weight distribution (Mw/Mn) of not more than 4, and (F) the copolymer has a crystallinity of 0 to 10%. The random copolymer may be grafted by (a) alpha, beta-unsaturated carboxylic acids and/or their derivatives, (b) styrenes, (c) organic silicon compounds having an olefinically unsaturated bond and a hydrolyzable group, or (d) unsaturated epoxy monomers. The random copolymer is produced by continuously copolymerizing ethylene with at least one cycloolefin in a hydrocarbon medium in the presence of a catalyst formed from a soluble vanadium compound and an organoaluminum compound while maintaining the atomic ratio of vanadium atoms to aluminum atoms in the reaction system, V/Al, at 2 or higher.
摘要翻译:一种无规共聚物,其特征在于(A)共聚物包括来自乙烯的聚合单元和来自至少一种环烯烃的聚合单元,(B)聚合单元与环烯烃的聚合单元与来自乙烯的聚合单元的摩尔比为3:97至 (D)共聚物的特性粘度为0.01〜20dl / g,(E)共聚物具有分子量分布(+ E, ovs M + EE w / + E,ovs M + EE n)不大于4,(F)共聚物的结晶度为0至10%。 无规共聚物可以通过(a)α,β-不饱和羧酸和/或其衍生物,(b)苯乙烯,(c)具有烯属不饱和键的有机硅化合物和可水解基团,或(d)不饱和环氧树脂 单体。 无规共聚物通过在由可溶性钒化合物和有机铝化合物形成的催化剂存在下在烃介质中连续共聚乙烯与至少一种环烯烃,同时保持钒原子与反应体系中铝原子的原子比, V / Al,2或更高。
摘要:
A random copolymer characterized in that (A) the copolymer comprises polymerized units from ethylene and polymerized units from at least one cycloolefin, (B) the mole ratio of the polymerized units from the cycloolefin to the polymerized units from ethylene is from 3:97 to 60:40, (C) the cycloolefin is incorporated in the polymer chain without ring opening, (D) the copolymer has an intrinsic viscosity of 0.01 to 20 dl/g, (E) the copolymer has a molecular weight distribution (Mw/Mn) of not more than 4, and (F) the copolymer has a crystallinity of 0 to 10%. The random copolymer may be grafted by (a) alpha, beta-unsaturated carboxylic acids and/or their derivatives, (b) styrenes, (c) organic silicon compounds having an olefinically unsaturated bond and a hydrolyzable group, or (d) unsaturated epoxy monomers. The random copolymer is produced by continuously copolymerizing ethylene with at least one cycloolefin in a hydrocrbon medium in the presence of a catalyst formed from a soluble vanadium compound and an organoaluminum compound while maintaining the atomic ratio of vanadium atoms to aluminum atoms in the reaction system, V/Al, at 2 or higher.
摘要:
A thin film of an amorphous alloy comprising (i) at least one element selected from Fe and Co, (ii) at least one element selected from Pt and Pd and (iii) at least one element selected from (a) 3d transition elements other than Fe and Co, (b) 4d transition elements other than Pd, (c)5d transition elements other than Pt, (d) light rare earth elements, (e)Group III B elements, (f)Group IV B elements, (g)Group V B elements, and (h)Group VI B elements, and the film having an easy axis of magnetization perpendicular to the film face. The thin film has excellent magnetooptical characteristics including increased coercive force and large Kerr-rotation angle and Faraday-rotation angle, and is excellent in resistance to oxidation and In consequence the coercive force and Kerr-angle of the film do not substantially change with time. The film has a high reflectance as well.
摘要:
A thin film of an amorphous alloy comprising (i) at least one element selected from Fe and Co, (ii) at least one element selected from Pt and Pd and (iii) at least one element selected from (a) 3d transition elements other than Fe and Co, (b) 4d transition elements other than Pd, (c) 5d transition elements other than Pt, (d) light rare earth elements, (e) Group III B elements, (f) Group IV B elements, (g) Group V B elements, and (h) Group VI B elements, and the film having an easy axis of magnetization perpendicular to the film face. The thin film has excellent magnetooptical characteristics including increased coercive force and large Kerr-rotation angle and Faraday-rotation angle, and is excellent in resistance to oxidation and in consequence the coercive force and Kerr-angle of the film do not substantially change with time. The film has a high reflectance as well.