US4412049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing highly stereoregular α-olefin polymers
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1983-01-10
•
Granted: 1983-10-25
•
Expires: 2003-01-10
Abstract
Abstract A process for producing highly stereoregular alpha -olefin polymers which comprises polymerizing alpha -olefins in the presence of a catalyst system comprising: (A) a solid catalyst obtained by contact reaction between (a) a solid product prepared by reacting an organo-magnesium compound with at least one of halogenated silicon compound (I) and halogenated aluminum compound (II) in a solvent and (b) a titanium compound having both titanium-aryloxy and titanium-halogen linkages, and (B) an organo-aluminum compound as an activating agent.
Inventors
- 👤 Akinobu Shiga
- 👤 Yukio Naito
- 👤 Toshio Sasaki
- 👤 Junpei Kojima
- 👤 Hiroshi Yoshioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:18
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
228 words
A process for producing α-olefin polymers of high stereoregularity which comprises polymerizing an α-olefin having not less than three carbon atoms or copolymerizing said α-olefin with another olefin having not less than two carbon atoms in the presence of a catalyst system comprising: (A) a solid catalyst obtained by contact reaction between (a) a solid product prepared by reaction of an organo-magnesium compound with at least one of the following halogen-containing compounds (I) and (II) in a solvent comprising an ether compound or a mixture of an ether compound and a hydrocarbon compound, (I) halogenated silicon compounds of the formula, R n SiX 4-n , in which R is a hydrocarbon group having 1 to 8 carbon atoms, X is a halogen atom and n is a number satisfying 0≦n<4, (II) halogenated aluminum compounds of the formula, R l AlX 3-l , in which R is a hdyrocarbon group having 1 to 8 carbon atoms, X is a halogen atom and l is a number satisfying 0≦l<3, and (b) a titanium compound of the formula, Ti(OAr) n X 4-n , in which OAr is an aryloxy group, X is halogen, n is a number satisfying 0.1≦n≦0.8, the ratio of the number of titanium-aryloxy linkage to that of titanium is less than 1, and the valence of titanium is 4, and (B) an organoaluminum compound as an activating agent.
Claim 2
Dependent Claim
228 words
A process for producing α-olefin polymers of high stereoregularity which comprises polymerizing an α-olefin having not less than three carbon atoms or copolymerizing said α-olefin with another olefin having not less than two carbon atoms in the presence of a catalyst system comprising: (A) a solid catalyst obtained by contact reaction between (a) a solid product prepared by reaction of an organo-magnesium compound with at least one of the following halogen-containing compounds (I) and (II) in a solvent comprising an ether compound or a mixture of an ether compound and a hydrocarbon compound, (I) halogenated silicon compounds of the formula, R n SiX 4-n , in which R is a hydrocarbon group having 1 to 8 carbon atoms, X is a halogen atom and n is a number satisfying 0≦n<4, (II) halogenated aluminum compounds of the formula, R l AlX 3-l , in which R is a hdyrocarbon group having 1 to 8 carbon atoms, X is a halogen atom and l is a number satisfying 0≦l<3, and (b) a titanium compound of the formula, Ti(OAr) n X 4-n , in which OAr is an aryloxy group, X is halogen, n is a number satisfying 0.1≦n≦0.8, the ratio of the number of titanium-aryloxy linkage to that of titanium is less than 1, and the valence of titanium is 4, and (B) an organoaluminum compound as an activating agent.
Claim 3
Dependent Claim
40 words
A process according to claim 1, wherein said organo-magnesium compound is represented by the formulae, RMgX and/or RR'Mg (in which R and R' are each a hydrocarbon group having 1 to 8 carbon atoms and X is a halogen atom).
Claim 4
Dependent Claim
50 words
A process according to claim 1, wherein said halogen-containing compound (I) is a halogenated silicon compound of the formula, R n SiX 4-n (in which r is a hydrocarbon group having 1 to 8 carbon atoms, X is a halogen atom and n is a number satisfying the equation, 0≦n≦1).
Claim 5
Dependent Claim
14 words
A process according to claim 3, wherein the halogen-containing compound (I) is silicon tetrachloride.
Claim 6
Dependent Claim
44 words
A process according to claim 1, wherein said halogen-containing compound (II) is a halogenated aluminum compound of the formula, R l AlX 3-l (in which R is an ethyl group, X is a chlorine atom and l is a number satisfying the equation, 0≦l≦2).
Claim 7
Dependent Claim
13 words
A process according to claim 1, wherein the solvent is an ether compound.
Claim 8
Dependent Claim
25 words
A process according to claim 6, wherein the amount of the ether compound is 0.1 to 10 times by mole based on the organo-magnesium compound.
Claim 9
Dependent Claim
22 words
A process according to claim 6, wherein the ether compound is an aliphatic or cyclic ether having 4 to 10 carbon atoms.
Claim 10
Dependent Claim
22 words
A process according to claim 1, wherein the molar ratio of the organo-magnesium compound to the halogen-containing compound is 1:10 to 10:1.
Claim 11
Dependent Claim
14 words
A process according to claim 9, wherein said molar ratio is 1:2 to 2:1.
Claim 12
Dependent Claim
25 words
A process according to claim 1, wherein the reaction between the organo-magnesium compound and the halogen-containing compound is carried out at -50° to 150° C.
Claim 13
Dependent Claim
17 words
A process according to claim 11, wherein said reaction is carried out at -30° to 80° C.
Claim 14
Dependent Claim
26 words
A process according to claim 1, wherein a time required for the reaction between the organo-magensium compound and the halogen-containing compound is 10 minutes or more.
Claim 15
Dependent Claim
54 words
A process according to claim 1, wherein the solid catalyst is one obtained by contact treatment of the solid product (a) with an electron donor, followed by contact reaction with the titanium compound (b), or by contact reaction of the solid product (a) with a mixture of the titanium compound (b) and electron donor.
Claim 16
Dependent Claim
13 words
A process according to claim 14, wherein the electron donor is an ester.
Claim 17
Dependent Claim
16 words
A process according to claim 16, wherein the ester is the ester of aromatic monocarboxylic acids.
Claim 18
Dependent Claim
26 words
A process according to claim 14, wherein the amount of the electron donor used is 10 -5 to 0.1 mole per gram of solid product (a).
Claim 19
Dependent Claim
26 words
A process according to claim 17, wherein the amount of the electron donor used is 5×10 -4 to 0.02 mole per gram of solid product (a).
Claim 20
Dependent Claim
16 words
A Process according to claim 1, wherein the halogen in the titanium compound (b) is chlorine.
Claim 21
Dependent Claim
24 words
A process according to claim 1, wherein the aryloxy group in the titanium compound (b) is a phenoxy group and/or a subtituted phenoxy group.
Claim 22
Dependent Claim
22 words
A process according to claim 20, wherein the substitutent of the substituted phenoxy group is a hydrocarbyl, halogen, alkoxy or aryloxy group.
Claim 23
Dependent Claim
18 words
A process according to claim 21, wherein the substituent of the substituted phenoxy group is a hydrocarbyl group.
Claim 24
Dependent Claim
45 words
A process according to claim 1, wherein the solid catalyst is one obtained by contact reaction by slurring the solid product (a) in a liquid-form or solution-form titanium compound (b) or by impregnating the solid product (a) with a liquid-form or solution-form titanium compound (b).
Claim 25
Dependent Claim
21 words
A process according to claim 23, wherein the titanium compound (b) is in the form of solution in an inert solvent.
Claim 26
Dependent Claim
25 words
A process according to claim 24, wherein the inert solvent is one selected from aliphatic, alicyclic and aromatic hydrocarbons, and aliphatic and aromatic halogenated hydrocarbons.
Claim 27
Dependent Claim
17 words
Aprocess according to claim 25, wherein the inert solvent is an aromatic hydrocarbon and/or a halogenated hydrocarbon.
Claim 28
Dependent Claim
15 words
A process according to claim 26, wherein the inert solvent is an aromatic halogenated hydrocarbon.
Claim 29
Dependent Claim
23 words
A process according to claim 24, wherein the concentration of the titanium compound (b) in the solution is 5 to 90% by volume.
Claim 30
Dependent Claim
23 words
A process according to claim 28, wherein the concentration of the titanium compound (b) in the solution is 10 to 70% by volume.
Claim 31
Dependent Claim
28 words
A process according to claim 23, wherein the amount of the liquid-form or solution-form titanium compound (b) per gram of solid product (a) is 0.1 to 100 ml.
Claim 32
Dependent Claim
28 words
A process according to claim 30, wherein the amount of the liquid-form or solution-form titanium compound (b) per gram of solid product (a) is 0.5 to 50 ml.
Claim 33
Dependent Claim
26 words
A process accordign to claim 1, wherein the contact reaction between solid product (a) and titanium compound (b) is carried out at 0° to 150° C.
Claim 34
Dependent Claim
28 words
A process according to claim 1, wherein a time required for the contact reaction between solid product (a) and titanium compound (b) is 30 minutes to 3 hours.
Claim 35
Dependent Claim
51 words
A process according to claim 1, wherein the organo-aluminum compound is one represented by the formula, R m 2 AlY 3-m , wherein R 2 is a C 1-8 straight or branched alkyl, or alicyclic or aromatic hydrocarbon group, Y is halogen or hydrogen and m is a number satisfying 2≦m≦3.
Claim 36
Dependent Claim
26 words
A process according to claim 1, wherein the molar ratio of a titanium atom in the solid catalyst to the activating agent is 10:1 to 1:1000.
Claim 37
Dependent Claim
14 words
A process according to claim 35, wherein the molar ratio is 2:1 to 1:600.
Claim 38
Dependent Claim
24 words
A process according to claim 1, wherein the catalyst system comprises the solid catalyst (A), the activating agent (B) and the electron donor (C).
Claim 39
Dependent Claim
13 words
A process according to claim 37, wherein the electron donor is an ester.
Claim 40
Dependent Claim
17 words
A process according to claim 38, wherein the electron donor is the ester of aromatic monocarboxylic acids.
Claim 41
Dependent Claim
22 words
A process according to claim 37, wherein the molar ratio of the activating agent to the electron donor is 100:1 to 1:10.
Claim 42
Dependent Claim
14 words
A process according to claim 40, wherein the molar ratio is 10:1 to 1:1.
References Cited (Backward Citations)
US4298718A
Cited
GB1305610A
Cited
GB1492618A
Cited
US4172050A
Cited
US4076924A
Cited
US4085276A
Cited
US4115319A
Cited
US4223117A
Cited
US4143223A
Cited
US4258167A
Cited
US4235984A
Cited
EP0018025A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |