EP0520816A2
Expired / Lapsed
EP
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Catalyst components for polymerization of olefins
Assignee: Japan Polyolefins Co Ltd
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Filing: 1992-06-26
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Granted: —
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Expires: 2012-06-26
Abstract
Abstract 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 M¹ (OR¹) p R² q X¹ 4-p-q , a second compound of the formula M² (OR³) m R⁴ n X² 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.
Inventors
- 👤 Yoshio Tajima
- 👤 Naoki Katoaka
- 👤 Yosuke Numao
- 👤 Takashi Seki
- 👤 Kazuo Matsuura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 09:50
CPC Classifications
C; C08; C08F; C08F10/00; C08F110/00; C08F110/02; C08F110/04; C08F110/06; C08F210/00; C08F210/02; C08F210/04; C08F210/06; C08F210/08; C08F210/16; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/659; C08F4/65904; C08F4/65912; C08F4/6592; Y; Y10; Y10S; Y10S526/00; Y10S526/903
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
A catalyst component for use in the polymerization of olefinic hydrocarbons, said catalyst component comprising: i) a compound (A) of the formula M¹ (OR¹) p R² q X¹ 4-p-q where R¹ and R² each are hydrocarbon moieties of 1 - 24 carbon atoms; X¹ is a halogen atom; M¹ is Ti, Zr or Hf; 0 ≦ p ≦ 4; 0 ≦ q < 4 ; and 0 ≦ p+q ≦ 4, ii) a compound (B) of the formula M² (OR³) m R⁴ n X² z-m-n where R³ and R⁴ each are hydrocarbon moieties of 1 - 24 carbon atoms; X² is a halogen atom; M² is an element included in Groups I - III of the Periodic Table; z is a valence of M² ; 0 ≦ m ≦ 3; 0 ≦ n < 3 ; and 1 ≦ n+m ≦ 3, and iii) an organocyclic compound (C) having two or more conjugated double bonds.
Claim 2
Dependent Claim
28 words
A catalyst component as claimed in claim 1 characterized in that said R¹ and R² each are selected from the group of alkyl, alkenyl, aryl and aralkyl groups.
Claim 3
Dependent Claim
31 words
A catalyst component as claimed in claim 1 or claim 2 characterized in that said compound (A) is one selected from the group of tetramethylzirconium, tetraethylzirconium, tetrabenzylzirconium, tetraethoxyzirconium, tetraisopropoxyzirconium and tetra-n-butoxyzirconium.
Claim 4
Dependent Claim
43 words
A catalyst component as claimed in any of Claims 1 to 3 characterized in that said compound (B) is one selected from the group of ethyllithium, methylmagnesium chloride, ethylmagnesium chloride, n-butylmagnesium chloride, phenylmagnesium chloride, diethylzinc, trimethylboron, diethoxyaluminum chloride, diethylaluminum chloride and diethylaluminum ethoxide
Claim 5
Dependent Claim
52 words
A catalyst component as claimed in any of Claims 1 to 4 characterized in that said compound (C) is a cyclic hydrocarbon compound having two or more, preferably 2 - 4, more preferably 2 - 3 conjugated double bonds and a total carbon number of 4 - 24, preferably 4 - 12.
Claim 6
Dependent Claim
55 words
A catalyst component as claimed in any of Claims 1 to 4 characterized in that said compound (C) is an organosilicon compound having two or more, preferably 2 - 4, more preferably 2 - 3 conjugated double bonds and cyclic hydrocarbon groups having a total carbon number of 4 - 24, preferably 4 - 12.
Claim 7
Dependent Claim
52 words
A catalyst component as claimed in any of Claims 1 to 6 characterized in that said compounds (A), (B) and (C) are blended in a molar ration of (A):(B) of 1:0.1 - 100, preferably 1:0.1 - 10 and in a molar ratio (A):(C) of 1:0.1 - 100, preferably 1:0.1 - 10, respectively.
Claim 8
Dependent Claim
193 words
A process for the polymerization of olefinic hydrocarbons which comprises polymerizing an olefinic hydrocarbon in the presence of a catalyst composition comprising a catalyst component comprised of i) a compound (A) of the formula M¹ (OR¹) p R² q X¹ 4-p-q where R¹ and R² each are hydrocarbon moieties of 1 - 24 carbon atoms; X¹ is a halogen atom; M¹ is Ti, Zr or Hf; 0 ≦ p ≦ 4; 0 ≦ q< 4 ; and 0 ≦ p+q ≦ 4, ii) a compound (B) of the formula M ²(OR³) m R⁴ n X² z-m-n where R³ and R⁴ each are hydrocarbon moieties of 1 - 24 carbon atoms; X² is a halogen atom; M² is an element included in Groups I - III of the Periodic Table; z is a valence of M²; 0 ≦ m ≦ 3; 0 ≦ n < 3 ; and 1 ≦ n+m ≦ 3, and iii) an organocyclic compound (C) having two or more conjugated double bonds, and iv) a modified organoaluminum compound derived from reacting an organoaluminum compound with water and having 1 - 100, preferably 1 - 50 Al-O-Al bonds in the molecule.
References Cited (Backward Citations)
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