摘要:
According to the present invention there are provided a catalyst component, a catalyst using the catalyst component and a process using the catalyst, for the preparation of olefin polymers high in molecular weight and relatively wide in molecular weight distribution, using an extremely small amount of a modified organoaluminum compound such as methylaluminoxane and in high yield. The catalyst component is prepared by contacting at least the following constituents (1), (2), (3) and (4) with one another: (1) a compound represented by the general formula Me.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sub.4-p-q where R.sup.1 and R.sup.2 are each independently a hydrocarbon group having 1 to 24 carbon atoms, X is a halogen atom, Me is Zr, Ti or Hf, p and q are each an integer in the ranges of 0.ltoreq.p.ltoreq.4 and 0.ltoreq.q.ltoreq.4, provided 0.ltoreq.p+q.ltoreq.4; (2) at least one compound selected from the group consisting of compounds represented by the following general formulas 1 to 4: General formula 1: Me.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n General formul 2: Me.sup.3 H.sub.2 R.sup.5.sub.3-a General formula 3: Me.sup.4 �Me.sup.3 H.sub.b R.sup.6.sub.c (OR.sup.7).sub.4-b-c !.sub.y General formula 4: ##STR1## where R.sup.3,R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8, which may be the same or different, are each independently a hydrocarbon group having 1 to 24 carbon atoms, Me.sup.2 is a Group 1, 2, 12 or 13 element in the Periodic Table of Elements, Me.sup.3 is a Group 13 element in the same Table, Me.sup.4 is a Group 1, 2, or 12 element in the same Table, X.sup.2 is a halogen atom, z is the valence of Me.sup.2, y is the valence of Me.sup.4, and m, n, a, b, c and d are each an integer in the ranges of 0.ltoreq.m.ltoreq.z, 0.ltoreq.n.ltoreq.z, provided 0.ltoreq.m+m.ltoreq.z, 0
摘要:
According to the present invention there is provide a catalyst capable of affording an olefin homopolymer or copolymer having a high molecular weight and a relatively wide molecular weight distribution, in high yield, using an extremely small amount of a modified organoaluminum compound (particularly methylaluminoxane).The catalyst comprises the modified organoaluminum compound and a catalyst component comprising the following compounds (1) and (2): (1) a compound represented by the general formula R.sub.p MX.sub.4-p where M is a transition metal of Group IVa in the Periodic Table, R is cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, or an aralkyl group having 7 to 24 carbon atoms, provided Rs may be bonded together through an alkylene groups having 2 to 8 carbon atoms and/or silylene group, X is a halogen atom, a hydrogen atom or a hydrocarbon residue having 1 to 24 carbon atoms, and p is a number satisfying the condition of 1.ltoreq.p.ltoreq.4; and (2) a compound containing carbon-fluorine bond.
摘要:
An oligomerization catalyst according to the invention comprises a nickel compound (A); an organophosphoric compound (B); an organoaluminum compound (C); and a compound of the group consisting of carbon-halogen bond-containing compounds, oxoacid and salts thereof, sulfonic acid and derivatives thereof, and compounds of any of the formulae QX.sup.4.sub.n, QR.sub.n, QR'.sub.n, QX.sup.4.sub.1 R.sub.m, QX.sup.4.sub.1 R'.sub.m, QR.sub.1 R'.sub.m, Q.sup.1 (BR.sub.4).sub.p and R"(BR.sub.4) wherein Q is an element of the group consisting of Mg, Ti, Zr, B and Sn, Q.sup.1 is an element of the group consisting of Li, Na, K, Ca and Zn, X.sup.4 is a halogen or hydrogen atom, R is a C.sub.1 -C.sub.12 hydrocarbon group, R' is a C.sub.1 -C.sub.12 oxygen-containing hydrocarbon group, R" is a C.sub.1 -C.sub.20 hydrocarbon group or an ammonium group, n is a valence of Q, l, m is a natural member that satisfied n=l+m, and p is a valence of Q.sup.1. This catalyst is useful for the production of alpha-olefinic oligomers.
摘要:
A process for the polymerization of olefinic hydrocarbons is carried out in the presence of a catalyst comprising a catalyst component derived from reacting a compound of the formula Me.sup.1 R.sup.1.sub.n X.sup.1.sub.4-n, a compound of the formula Me.sup.2 R.sup.2.sub.m X.sup.2.sub.z-m, an organocyclic compound having two or more conjugated double bonds and a carrier of inorganic or polymeric material, and a modified organoaluminum compound having Al--O--Al bonds, the resulting polyolefins having a relatively wide molecular weight distribution, a relatively narrow composition distribution and increased bulk density.
摘要:
An effective catalyst carrier for use in the polymerization of olefins is provided.Said carrier comprises particles of silicon oxide or aluminum oxide satisfying the following characteristics (A) to (E):(A) An average particle diameter as measured by the sieving method is in the range of 20 to 150 .mu.m.(B) A specific surface area as measured by the BET method is in the range of 150 to 600 m.sup.2 /g.(C) The volume of pores ranging in pore radius from 18 to 1,000 Angstroms as measured by the mercury penetration method is in the range of 0.3 to 2.0 cm.sup.3 /g.(D) An apparent specific gravity as measured according to JIS K6220-6.8 is not lower than 0.32.(E) After the particles classified in the range of between 53 .mu.m and 75 .mu.m by the sieving method have been subjected to an ultrasonic disintegration treatment at 40 KHz, 35 W, for 20 minutes, the proportion of 50 .mu.m or smaller particles, i.e., degree of ultrasonic disintegration, is not more than 30%.
摘要:
A catalyst component is disclosed for use in the homo-or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula Me.sup.1 (OR.sup.1).sub.p R.sup.2.sub.q X.sup.1.sub.4-p-q, a second compound of the formula Me.sup.2 (OR.sup.3).sub.m R.sup.4.sub.n X.sup.2.sub.z-m-n and a third compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing controlled molecular weight, wide distribution thereof and other desirable qualities in the polymer product.
摘要:
According to this invention there is provided a process for polymerizing or copolymerizing olefins using a catalyst consisting of:[A]a solid component obtained by contacting(1) a reaction product resulting from heat reaction of a magnesium oxide and an aluminum trihalide with(2) a titanium halide and/or an addition product of a titanium halide and an aromatic carboxylic acid ester, and[B]an organometallic compound and/or an addition product of an organometallic compound and an aromatic carboxylic acid ester,or alternatively, using a catalyst consisting of acid components [A] and [B] plus [C] an aromatic carboxylic acid ester.
摘要:
According to the present invention, there are provided a catalyst and a process for the preparation of polyolefins having a relatively wide molecular weight distribution, good particle properties, a narrow composition distribution in copolymerization and a high molecular weight and being less sticky. The catalyst is prepared by contacting the following constituents (1) to (4) with one another:(1) a compound represented by the general formula Me.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sub.4-p-q, where Me.sup.1 is Zr, Ti or Hf, R.sup.1 and R.sup.2 are each independently a hydrocarbon group having 1 to 24 carbon atoms, X is a halogen atom, p and q are each an integer in the ranges of 0.ltoreq.p.ltoreq.4 and 0.ltoreq.q.ltoreq.4 , provided 0.ltoreq.p+q.ltoreq.4;(2) a compound represented by the general formula Me.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n, where Me.sup.2 is a Group I-III element in the Periodic Table, R.sup.3 and R.sup.4 are each independently a hydrocarbon group having 1 to 24 carbon atoms, X.sup.2 is a halogen atom or a hydrogen atom, provided when X.sup.2 is a hydrogen atom, Me.sup.2 is a Group III element in the Periodic Table, z is the valence of Me.sup.2, m and n are each an integer in the ranges of 0.ltoreq.m.ltoreq.z, and 0.ltoreq.n.ltoreq.z, provided 0.ltoreq.m+n.ltoreq.z;(3) an organocyclic compound having conjugated double bonds; and(4) a modified organoaluminum compound containing Al--O--Al bond, and thereafter contacting the resulting contact reaction product with the following component (5):(5) an inorganic carrier and/or a particulate polymer carrier.
摘要翻译:根据本发明,提供了一种催化剂和制备具有较宽分子量分布,良好的颗粒性能,窄的共聚合成分布和高分子量且不易粘的聚烯烃的方法。 通过使下述成分(1)〜(4)彼此接触来制备催化剂:(1)由通式Me1R1p(OR2)qX4-pq表示的化合物,其中Me1为Zr,Ti或Hf,R1和R2 各自独立地为具有1〜24个碳原子的烃基,X为卤素原子,p和q各自为0≤p≤4且0≤q≤4的整数, 提供0 p + q = 4; (2)由通式Me2R3m(OR4)nX2z-mn表示的化合物,其中Me2是元素周期表中的I-III族元素,R3和R4各自独立地为具有1至24个碳原子的烃基,X2是 卤原子或氢原子,当X2是氢原子时,Me2是元素周期表中的III族元素,z是Me2的化合价,m和n分别为0≤m的整数 = z和0 = n z,其中,0 = m + n = z; (3)具有共轭双键的有机环状化合物; 和(4)含有Al-O-Al键的改性有机铝化合物,然后使所得接触反应产物与以下组分(5)接触:(5)无机载体和/或颗粒聚合物载体。
摘要:
A catalyst component is disclosed for use in the homo- or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula M.sup.1 (OR.sup.1).sub.p R.sup.2.sub.q X.sup.1.sub.4-p-q, M.sup.1 being titanium a second compound of the formula M.sup.2 (OR.sup.3).sub.m R.sup.4.sub.n X.sup.2.sub.z-m-n, with M.sup.2 being a metal of Groups Ia-IIIa or IIb of the Periodic Table, and a third compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing controlled molecular weight, wide distribution thereof and other desirable qualities in the polymer product.
摘要:
A catalyst component is disclosed for use in the homo- or copolymerization of olefinic hydrocarbons. The catalyst component is comprised of a first compound of the formula Me.sup.1 (OR.sup.1).sub.p R.sup.2.sub.q X.sup.1.sub.4-p-q, a second compound of the formula Me.sup.2 (OR.sup.3).sub.m R.sup.4.sub.n X.sup.2.sub.z-m-n and a third compound which is an organocyclic compound having two or more conjugated double bonds. A process is also disclosed for the production of hydrocarbon polymers in which the above catalyst component is combined with a modified organoaluminum compound to form a catalyst composition capable of providing controlled molecular weight, wide distribution thereof and other desirable qualities in the polymer product.