摘要:
Novel highly active catalysts useful for highly stereospecific polymerization of olefin which enables to produce polymer of good grain size having a high stereoregularity can be obtained by a combination of [A] a solid catalyst component obtained by reacting a specified organomagnesium component (i) with a specified chlorosilane compound containing Si--H (ii) to obtain a solid (1) and reacting said solid (1) with a titanium compound containing at least one halogen atom (2) and a carboxylic acid or a derivative thereof (3) and [B] a component consisting of an organometallic compound and a carboxylic acid or a derivative thereof.The organomagnesium component is of the formulaM.sub..alpha. Mg.sub..beta. R.sub.p.sup.1 R.sub.q.sup.2 X.sub.r Y.sub.swherein .alpha. is a number of 0 or greater than 0; .beta.> 0; p, q, r and s are each a number of 0 or greater; p+q+r+s=m.alpha.+2.beta. wherein m is the valency of M; M is a metal element of the 1st to the 3rd group of the Periodical Table; R.sup.1 and R.sup.2 are the same or different hydrocarbon radicals having 1 to 20 carbon atoms; X and Y are the same or different radicals selected from the group consisting of halogen, OR.sub.3, OSiR.sup.4 R.sup.5 R.sup.6, NR.sup.7 R.sup.8 and SR.sup.9 wherein R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are each hydrogen atom or a hydrocarbon radical having 1 to 20 carbon atoms and R.sup.9 is a hydrocarbon radical having 1 to 20 carbon atoms,And chlorosilane is of the formulaH.sub.a SiCl.sub.b R.sub.4-(a+b)wherein a and b are each a number greater than 0, having the relationship a.ltoreq.2 and a+b.ltoreq.4 wherein R is a hydrocarbon radical having 1 to 20 carbon atoms.
摘要:
Novel high active catalysts useful for highly stereospecific polymerization of olefin which enables to produce polymer of low content of catalyst residue, and of good grain size having a high stereoregularity can be obtained by a combination of [A] a solid catalyst component obtained by reacting and/or grinding a specified organomagnesium component (i) with a specified chlorosilane compound containing Si-H (ii) to obtain a solid (1) and reacting said solid (1) with a titanium compound containing at least one halogen atom (2) and a carboxylic acid or a derivative thereof (3) and [B] a component consisting of an organometallic compound and a carboxylic acid or a derivative thereof. The organomagnesium component is of the formulaM.sub..alpha. Mg.sub..beta. R.sub.p.sup.1 R.sub.q.sup.2 X.sub.r Y.sub.swherein .alpha. is a number of 0 or greater than 0; .beta.>0, p, q, r, and s are each a number of 0 or greater; p+q+r+s=m.alpha.+2.beta. wherein m is the valency of M; M is a metal element of the 1st to the 3rd group of the Periodic Table; R.sup.1 and R.sup.2 are the same or different hydrocarbon radicals having 1 to 20 carbon atoms; X and Y are the same or different radicals selected from the group consisting of halogen, OR.sup.3, OSiR.sup.4 R.sup.5 R.sup.6, NR.sup.7 R.sup.8 and SR.sup.9 wherein R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are each hydrogen atom or a hydrocarbon radical having 1 to 20 carbon atoms and R.sup.9 is a hydrocarbon radical having 1 to 20 carbon atoms, and chlorosilane is of the formulaH.sub.a SiCl.sub.b R.sub.4-(a+b)wherein a and b are each a number greater than 0, having the relationships a.ltoreq.2 and a+b.ltoreq.4 wherein R is a hydrocarbon radical having 1 to 20 carbon atoms.
摘要翻译:可以通过将[A]通过反应获得的固体催化剂组分与通式(1)所得的固体催化剂组分的组合,得到可用于烯烃的高立体特异性聚合的新型高活性催化剂,其能够生产低含量催化剂残余物和具有高立构规整性的良好晶粒尺寸的聚合物, /或用指定的含有Si-H(ⅱ)的氯代硅烷化合物研磨指定的有机镁组分(ⅰ),得到固体(1),并使所述固体(1)与含有至少一个卤素原子(2)和 羧酸或其衍生物(3)和[B]由有机金属化合物和羧酸或其衍生物组成的组分。 有机镁组分的分子式为MαMgβRp1Rq2XrYs,其中α为0或大于0; β> 0,P,Q,R和S是每个0或更大的数目; P + Q + R + S = Mα+ 2β,其中M是M的值; M是周期表第1至第3组的金属元素; R1和R2是相同或不同的具有1至20个碳原子的烃基; X和Y是选自卤素,OR 3,OSiR 4 R 5 R 6,NR 7 R 8和SR 9中相同或不同的基团,其中R 3,R 4,R 5,R 6,R 7和R 8各自为氢原子或具有1至20个碳原子的烃基 并且R 9是具有1至20个碳原子的烃基,并且氯代硅烷具有式HaSiClbR 4 - (a + b)。其中A和B在每个大于0的数字之间,具有相关性A = 2和A + B R是具有1至20个碳原子的烃基。
摘要:
Catalysts for polymerization of olefin which comprise a solid catalyst component (A) and an organometallic compound with a heterocyclic carboxylic acid ester (B), wherein the solid catalyst component (A) is obtained by reacting or/and grinding a special magnesium compound (1), a titanium halide (2) and a carboxylic acid ester (3); and the heterocyclic carboxylic acid ester is N-, S- or O-containing heterocyclic compound, and processes for polymerization of olefin employing such a catalyst.
摘要:
Catalysts for polymerization of olefin which comprise a solid catalyst component (A) and an organometallic compound with a heterocyclic carboxylic acid ester (B), wherein the solid catalyst component (A) is obtained by reacting or/and grinding an organomagnesium compound (1), of the formulaM.sub..alpha. Mg.sub..beta. R.sub.p.sup.1 R.sub.q.sup.2 X.sub.rwherein.alpha., p, q and r each independently .gtoreq.0,.beta.>0,p+q+r=m.alpha.+2.beta.M is Al, Zn, B or Be,m is the valence of M,R.sup.1 and R.sup.2 are the same or different hydrocarbon groups having 1-20 carbon atoms, andX is a halogen atom,or of the reaction product of M.sub..alpha. Mg.sub..beta. R.sub.p.sup.1 R.sub.q.sup.2 X.sub.r with an electron donor, with 0.01 to 100 moles of (ii) a chlorosilane compound containing Si-H bonds and of the formulaH.sub.a SiClR.sub.4-(a+b).sup.3wherein0
摘要:
A method for producing an organomagnesium complex which is soluble in an inert hydrocarbon medium and expressed by the general formula Mg.sub..alpha. Al.sub..beta. R.sup.1 .sub.p Y.sub.q is provided. In this formula.alpha., .beta., p and q each is a number greater than zero,.alpha./.beta. = about 0.5 to 20,2.alpha. and 3.beta. = p + q,q/.beta. = about 0.5 to 1.5,Y is OR.sup.2 or OSiR.sup.3 R.sup.4 R.sup.5,R.sup.1, r.sup.2 and R.sup.3 each independently is a hydrocarbon radical having 1 to 20 carbon atoms, andR.sup.4 and R.sup.5 each independently is a hydrocarbon radical having 1 to 20 carbon atoms, hydrogen or a halogen atom.Said complex is prepared by reacting (A) an organomagnesium compound R.sup.1.sub.a M.sub.g X.sub.2-a wherein x is halogen, with (B) an aluminum compound AlYX.sub.2 wherein Y and X have the same meanings as above-defined. This method is superior to the prior art with respect to ease of reaction, high reaction efficiency and safety. Further the complex is safe during storage and handling. When the complex is employed as an olefin polymerization catalyst, the catalyst efficiency is higher and the characteristic properties of the resultant polymer are superior to those of polymers with other complexes.
摘要:
A novel process for polymerizing ethylene or a mixture of ethylene and another olefin is provided. In this process a novel catalyst having a very high activity per solid component of catalyst is used. Said catalyst is prepared by reacting a specific hydrocarbon-soluble organoaluminum-magnesium complex containing alkoxy, aryloxy, siloxy or siloxane groups, with one or more kinds of a titanium or vanadium compound having at least one halogen atom, and subsequently reacting the thus obtained hydrocarbon-insoluble reaction product (A) with a specified organoaluminum compound (B).
摘要:
Polyethylene or copolymers of ethylene with another .alpha.-olefin can be produced by the use of a novel polymerization catalyst obtained by using, in combination, (A) a specified, hydrocarbon-insoluble solid component prepared by reacting (i) a specific, hydrocarbon-soluble organoaluminum-magnesium complex (Al.sub.n Mg.sub.m R.sub.n(3.sub.-.sub..alpha.).sup.1 -R.sub.2m.sup.2 H.sub.n, wherein R.sup.1 and R.sup.2 are hydrocarbon radicals) with (ii) a titanium or vanadium compound containing halogen atom(s), and (B) an organoaluminum compound. This catalyst exhibits a surprisingly high activity per the unit amount of the solid component.
摘要:
A process for polymerizing ethylene or a mixture of ethylene and another olefin is proposed in which the polymerization can be carried out with an extremely high efficiency by using a catalyst prepared by reacting (A) a hydrocarbon-insoluble reaction product (obtained by reacting (i) a specified organomagnesium-containing hydrocarbon-soluble complex, or reaction product of (i), with (ii) a specified siloxane compound and with (iii) at least one kind of titanium or vanadium compound containing at least one halogen atom), with (B) a specified organoaluminum compound. Resultant polymers have a high molecular weight and a high rigidity and molecular weight and molecular weight distribution thereof can be easily controlled.
摘要:
An olefin polymerization catalyst comprising a solid catalyst (I) and an organometallic compound (II), wherein said solid catalyst (I) is obtainable by reacting an organomagnesium compound (a) soluble in hydrocarbon solvent and represented by the following formula:MgR.sup.1.sub.p R.sup.2.sub.q X.sub.r(in the formula, R.sup.1 and R.sup.2, identical or different, represent a secondary or tertiary alkyl group having 4-6 carbon atoms, X represents a negative group containing O, N or S atom, p and q represent a number of 0-2, r represents a number of 0-1, and p, q and r satisfy: p+q+r=2) with a compound of titanium or vanadium having at least one halogen atom (b), has a high activity, is uniform, has a high density, is suitable for continuous polymerization of olefins, and enables to omit the catalyst removal step after the polymerization reaction.An olefin polymerization catalyst obtainable by replacing the solid catalyst (I) with a solid type catalyst (I') obtainable by further reacting solid catalyst (I) with compound (b) or with an organic or inorganic compound of aluminum, silicon, tin or antimony (c), and catalysts obtainable by adding a halogenated hydrocarbon (III) to the above-mentioned olefin polymerization catalysts give polyolefins having a broad molecular weight distribution.
摘要:
A catalyst useful for polymerizing olefins, capable of providing an extremely high catalyst efficiency, excellent grain size and high bulk density of polymer; production of polymer having various molecular weight distributions from a broader range to a narrower range and controlling of die swell of formed polymer, by using a mechanical grinding and contacting means. Said catalyst shows a high activity and higher stereoregularity in the polymerization of polypropylene when it is used together with an electron donor compound.Said catalyst comprises a solid catalyst component (A) and an organometallic compound (B), said catalyst component (A) is obtained by reacting a specified organomagnesium component (i) with a specified chlorosilane compound (ii) and reacting and/or grinding-contacting the solid obtained by the reaction of (i) and (ii) with a titanium and/or vanadium compound containing at least one halogen atom.The organomagnesium component is of the formulaM.sub..alpha. Mg.sub..beta. R.sub.p.sup.1 R.sub.q.sup.2 X.sub.r Y.sub.swherein .alpha. is a number of 0 or greater than 0; .beta.>0; p, q, r and s are each a number of 0 or greater; p+q+r+s=m.alpha.+2.beta. wherein m is the valency of M; M is a metal element of the 1st to the 3rd group of the Periodical Table; R.sup.1 and R.sup.2 are the same or different hydrocarbon radicals having 1 to 20 carbon atoms; X and Y are the same or different radicals selected from the group consisting of halogen, OR.sup.3, OSiR.sup.4 R.sup.5 R.sup.6, NR.sup.7 R.sup.8 and SR.sup.9 wherein R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are each hydrogen atom or a hydrocarbon radical having 1 to 20 carbon atoms and R.sup.9 is a hydrocarbon radical having 1 to 20 carbon atoms, and chlorosilane is of the formulaH.sub.a SiCl.sub.b R.sub.4-(a+b)wherein a and b are each a number greater than 0, having the relationships a.ltoreq.2 and a+b.ltoreq.4 wherein R is a hydrocarbon radical having 1 to 20 carbon atoms.