US4312783A
Expired / Lapsed
US
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Catalyst for polymerization of olefins
Assignee: Asahi Kasei Corp
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Filing: 1980-07-16
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Granted: 1982-01-26
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Expires: 2000-07-16
Abstract
Abstract A catalyst comprising (A) a solid catalyst component obtained by reacting a titanium compound having a hydrocarbyloxy group with an organoaluminum compound in the presence of an ether to give a liquid material or to give a solid titanium component (a) which is solubilized by addition of a tetravalent titanium halide with or without an ether without separation or after separation from the reaction mixture, and heat treating the liquid material at a temperature of 70 DEG to 180 DEG C. with or without addition of a tetravalent titanium halide, and (B) an organoaluminum compound is effective for polymerization or copolymerization of olefins with high stereoregularity and has high polymerization activity.
Inventors
- 👤 Hisaya Sakurai
- 👤 Masayoshi Miya
- 👤 Katsuhiko Takaya
- 👤 Haruyuki Yoneda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
224 words
A catalyst for polymerization of olefins comprising (A) a solid catalyst component obtained by reacting a titanium compound with an organoaluminum compound in the presence of an ether and a hydrocarbon solvent followed by heat treatment and (B) an organoaluminum compound, characterized in that said solid catalyst component has a hydrocarbyloxy group and is obtained by reacting a titanium compound of the formula Ti(OR.sup.1).sub.s X.sub.4-s (I) wherein R 1 is a hydrocarbon residue having 1 to 20 carbon atoms; X is a halogen atom; and 0<s≦4, with an organoaluminum compound of the formula: AlR.sup.2.sub.t Y.sub.3-t (II) wherein R 2 is a hydrocarbon residue having 1 to 20 carbon atoms; Y is a halogen atom; and 0<t≦3, in the presence of an ether and a hydrocarbon solvent to give a liquid material containing substantially no solid, or to give a solid titanium component (a), which is changed to a liquid material by adding a tetravalent titanium halide or a tetravalent titanium halide and an ether, or which is separated from the reaction mixture and then a tetravalent titanium halide and an ether are added thereto to give a liquid material, and heat treating said liquid material at a temperature of 70° to 180° C. with addition of a tetravalent titanium halide or without addition of a tetravalent titanium halide to give the solid catalyst component.
Claim 2
Dependent Claim
224 words
A catalyst for polymerization of olefins comprising (A) a solid catalyst component obtained by reacting a titanium compound with an organoaluminum compound in the presence of an ether and a hydrocarbon solvent followed by heat treatment and (B) an organoaluminum compound, characterized in that said solid catalyst component has a hydrocarbyloxy group and is obtained by reacting a titanium compound of the formula Ti(OR.sup.1).sub.s X.sub.4-s (I) wherein R 1 is a hydrocarbon residue having 1 to 20 carbon atoms; X is a halogen atom; and 0<s≦4, with an organoaluminum compound of the formula: AlR.sup.2.sub.t Y.sub.3-t (II) wherein R 2 is a hydrocarbon residue having 1 to 20 carbon atoms; Y is a halogen atom; and 0<t≦3, in the presence of an ether and a hydrocarbon solvent to give a liquid material containing substantially no solid, or to give a solid titanium component (a), which is changed to a liquid material by adding a tetravalent titanium halide or a tetravalent titanium halide and an ether, or which is separated from the reaction mixture and then a tetravalent titanium halide and an ether are added thereto to give a liquid material, and heat treating said liquid material at a temperature of 70° to 180° C. with addition of a tetravalent titanium halide or without addition of a tetravalent titanium halide to give the solid catalyst component.
Claim 3
Dependent Claim
125 words
A catalyst according to claim 1, wherein the solid catalyst component is obtained by reacting 1 mole of a titanium compound of the formula: Ti(OR.sup.1).sub.s X.sub.4-s (I) wherein R 1 is a hydrocarbon residue having 6 to 20 carbon atoms; X is a halogen atom; and 0.5≦s≦2, with 0.3 to 1.5 moles of an organoaluminum compound of the formula: AlR.sup.2.sub.t Y.sub.3-t (II) wherein R 2 is a hydrocarbon residue having 1 to 20 carbon atoms; Y is a halogen atom; and 1≦t<3, in the presence of 2 to 5 moles of an ether and a hydrocarbon solvent to give a liquid material containing substantially no solid, and heat treating the liquid material with addition of a tetravalent titanium halide to deposit the solid catalyst component.
Claim 4
Dependent Claim
146 words
A catalyst according to claim 1, wherein the solid catalyst component is obtained by reacting 1 mole of a titanium compound of the formula: Ti(OR.sup.1).sub.s X.sub.4-s (I) wherein R 1 is a hydrocarbon residue having 2 to 20 carbon atoms; X is a halogen atom; and 0<s≦3, with 0.5 to 1.5 moles of an organoaluminum compound of the formula: AlR.sup.2.sub.t Y.sub.3-t (II) wherein R 2 is a hydrocarbon residue having 1 to 20 carbon atoms; Y is a halogen atom; and 1<t≦3, in the presence of 1 to 2 moles of an ether and a hydrocarbon solvent to give a solid titanium component (a), which is solubilized by addition of a tetravalent titanium halide with or without an ether without separation to give a liquid material, and heat treating the liquid material at a temperature of 70° to 180° C. to give the solid catalyst component.
Claim 5
Dependent Claim
154 words
A catalyst according to claim 1, wherein the solid catalyst component is obtained by reacting 1 mole of a titanium compound of the formula: Ti(OR.sup.1).sub.s X.sub.4-s (I) wherein R 1 is a hydrocarbon residue having 2 to 20 carbon atoms; X is a halogen atom; and 0<s≦3, with 0.5 to 2.5 moles of an organoaluminum compound of the formula: AlR.sup.2.sub.t Y.sub.3-t (II) wherein R 2 is a hydrocarbon residue having 1 to 20 carbon atoms; Y is a halogen atom; and 1≦t≦3, in the presence of 0.01 to 1 mole of an ether and a hydrocarbon solvent to give a solid titanium component (a), which is separated from the reaction mixture and a tetravalent titanium halide and an ether are added to the solid titanium component (a) separated to give a liquid material by solubilization, heat treating the liquid material at a temperature of 70° to 180° C. to give the solid catalyst component.
Claim 6
Dependent Claim
18 words
A catalyst according to claim 1, 2, 3 or 4, wherein X in the formula (I) is chlorine.
Claim 7
Dependent Claim
54 words
A catalyst according to claim 1, 2, 3 or 4, wherein the titanium compound of the formula: Ti(OR.sup.1).sub.s X.sub.4-s (I) wherein R 1 is a hydrocarbon residue having 6 to 20 carbon atoms; X is chlorine; and 0<s≦2, is obtained by reacting titanium tetrachloride with an aliphatic alcohol having 6 to 20 carbon atoms.
Claim 8
Dependent Claim
37 words
A catalyst according to claim 1, 2, 3 or 4, wherein the ether used in the reaction of the titanium compound of the formula (I) with the organoaluminum compound of the formula (II) is a dialkyl ether.
Claim 9
Dependent Claim
18 words
A catalyst according to claim 1, 2, 3 or 4, wherein said hydrocarbon solvent is an aromatic hydrocarbon.
Claim 10
Dependent Claim
16 words
A catalyst according to claim 1, 2, 3, or 4, wherein the aromatic hydrocarbon is toluene.
Claim 11
Dependent Claim
25 words
A catalyst according to claim 1, 3, or 4 wherein the tetravalent titanium halide used for solubilizing the solid titanium component (a) is titanium tetrachloride.
Claim 12
Dependent Claim
39 words
A catalyst according to claim 1, 3 or 4, wherein the amount of tetravalent titanium halide used for solubilizing the solid titanium component (a) is 0.1 to 8 moles per mole of the titanium in the solid titanium component.
Claim 13
Dependent Claim
31 words
A catalyst according to claim 1, 3 or 4, wherein the ether used together with the tetravalent titanium halide for solubilizing the solid titanium component is an aliphatic hydrocarbon series ether.
Claim 14
Dependent Claim
44 words
A catalyst according to claim 1, 3 or 4, wherein the amount of the ether used together with the tetravalent titanium halide for solubilizing the solid titanium component is 0.1 to 50 moles per mole of the hydrocarbyloxy group in the solid titanium component.
Claim 15
Dependent Claim
23 words
A catalyst according to claim 1, 2, 3 or 4, wherein the tetravalent titanium halide added in the heat treatment is titanium tetrachloride.
Claim 16
Dependent Claim
25 words
A catalyst according to claim 1, 2, 3 or 4, wherein the heat treatment is carried out at a temperature of 80° to 120° C.
Claim 17
Dependent Claim
19 words
A catalyst according to claim 1, 2, 3 or 4, wherein the organoaluminum compound (B) is a dialkylaluminum chloride.
Claim 18
Dependent Claim
35 words
A catalyst according to claim 1, 2, 3 or 4, wherein the amount of the organoaluminum compound (B) is 1 to 100 moles per gram atom of the titanium in the solid catalyst component (A).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |