KR910007979A - Process for producing homopolymer or copolymer of α-olefin - Google Patents

Abstract

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Description

Process for producing homopolymer or copolymer of α-olefin

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Claims (10)

(A) in the presence of a chlorinated hydrocarbon solvent, (a) a titanium compound of the general formula (I) and (b) an aromatic carboxylic acid ester (c) (i) a hydrocarbon solvent of the general formula (II) Solid catalyst component obtained by contacting an organomagnesium compound with (ii) a solid component obtained by reacting with a chlorosilane compound of formula (III), (B) an organoaluminum compound of formula (IV), and (C ) A homopolymer or copolymer of α-olefins characterized by homopolymerizing α-olefins or copolymerizing comonomers and α-olefins in contact with a catalyst containing an alkoxysilane compound of formula (V) How to. Ti (OR ⁵ ) _m D _4-m (I) (M) _α (Mg) _β (R ¹ ) _p (R ² ) _q (OR ³ ) _r (II) H _a SiCl _b R ¹ _{4- (ab)} (III) AlR ⁶ _r Z _3-r (Ⅳ) R ⁷ _s Si (OR ⁸ ) _4-s (V) Wherein R ¹ , R ² and R ³ are each independently a hydrocarbon residue having 2 to 20 carbon atoms, R ⁴ is a hydrocarbon residue having 1 to 20 carbon atoms, R ⁵ is a hydrocarbon residue having 2 to 10 carbon atoms, and R ⁶ Is a hydrocarbon residue of 1 to 20 carbon atoms, R ⁷ and R ⁸ are each independently a hydrocarbon residue of 1 to 20 carbon atoms, D is a halogen atom, m is 0 m is a number satisfying the relationship of 4, M is a metal atom of group (I), (II) or (III) of the periodic table, and α, β, p, q and r are each independently 0 α, 0 <β, 0 p, 0 q, 0 <r and kα + 2β = p + q + r, where k is the valence of M, and a and b are each independently 0 <a, 0 <b, and a + b Is a number satisfying the relationship of 4, Z is a hydrogen atom, a halogen atom, a hydrocarboxy group or a siloxy group, and n is 0 <n Is a number satisfying the relationship of 3, and s is 0 It is a number that satisfies the relationship s <4. A process according to claim 1, wherein the solid catalyst component (A) obtained from components (a), (b) and (c) is further treated with titanium compound (a). The method according to claim 1 or 2, wherein α, β, and r in general formula (II) satisfy an inequality of 0.5 <r / (α + β) <2.2. The process according to claim 1 or 2, wherein the chlorinated hydrocarbon solvent is selected from 1,2-dichloroethane, o-dichlorobenzene, n-butylchloride and mixtures thereof. The method according to claim 1 or 2, wherein M in general formula (II) is aluminum or zinc. (Alpha) in General formula (II), and 1 β / α How to satisfy 20 relationships. The method according to claim 1 or 2, wherein the titanium compound (a) is titanium tetrachloride. The method according to claim 1 or 2, wherein the ratio of the organoaluminum compound (B) and the alkoxysilane compound (C) in the catalyst is 1 to 3000 mmol, the atomic weight of silicon, based on the atomic weight of aluminum, per gram of the solid catalyst component (A) 0.01 to 1000 mmol based. The process according to claim 1 or 2, wherein said α-olefin is selected from the group consisting of propylene, butene-1, pentene-1,4-methyl-pentene-1,3-methyl-butene-1 and mixtures thereof. The method of claim 1 or 2, wherein the comonomer is ethylene. ※ Note: The disclosure is based on the initial application.