US4027089A
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Process for polymerizing ethylene
Assignee: Asahi Kasei Corp
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Filing: 1975-05-21
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Granted: 1977-05-31
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Expires: 1995-05-21
Abstract
Abstract A novel process for polymerizing ethylene or a mixture of ethylene and another olefin is provided. In this process a novel catalyst having a very high activity per solid component of catalyst is used. Said catalyst is prepared by reacting a specific hydrocarbon-soluble organoaluminum-magnesium complex containing alkoxy, aryloxy, siloxy or siloxane groups, with one or more kinds of a titanium or vanadium compound having at least one halogen atom, and subsequently reacting the thus obtained hydrocarbon-insoluble reaction product (A) with a specified organoaluminum compound (B).
Inventors
- 👤 Itsuho Aishima
- 👤 Hisaya Sakurai
- 👤 Yukichi Takashi
- 👤 Hideo Morita
- 👤 Tadashi Ikegami
- 👤 Toshio Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:56
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
280 words
A process for polymerizing ethylene or a mixture of ethylene and another olefin which comprises polymerizing ethylene or a mixture of ethylene and another olefin in the presence of a catalyst prepared by reacting (A) (a) a hydrocarbon-soluble organoaluminum-magnesium complex (i) of the formula Al.sup.αMg.sup.βX.sub.p Y.sub.q R.sub.r.sup.1 R.sub.s.sup.2 wherein R 1 and R 2 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 10 carbon atoms, X and Y each independently is OR 3 or OSiR 4 R 5 R 6 , R 3 is a hydrocarbon radical having 1 to 10 carbon atoms, R 4 , r 5 and R 6 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 12 carbon atoms, α and β each independently is a number more than zero and β/α is from 1 to 10, p+ q+ r+ s= 3α + 2β, and 0<( p+q/(α+β)≦0.8, or (b) (ii) reaction product of the complex having the formula (i) wherein p and q are 0 with a linear or cyclic siloxane compound (ii) having a constitutional unit ##STR4## wherein R 7 and R 8 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 10 carbon atoms, with (B) at least one titanium or vanadium compound (iii) having at least one halogen atom, and subsequently reacting the thus obtained hydrocarbon insoluble reaction product (C) with an organoaluminum compound (D) of the formula AlR.sub.m.sup.9 Z.sub.3-m wherein R 9 is a hydrocarbon radical having 1 to 20 carbon atoms, Z is selected from the group consisting of a hydrogen atom, halogen atom, alkoxy, aryloxy and siloxy groups, and m is a number from 2 to 3.
Claim 2
Dependent Claim
280 words
A process for polymerizing ethylene or a mixture of ethylene and another olefin which comprises polymerizing ethylene or a mixture of ethylene and another olefin in the presence of a catalyst prepared by reacting (A) (a) a hydrocarbon-soluble organoaluminum-magnesium complex (i) of the formula Al.sup.αMg.sup.βX.sub.p Y.sub.q R.sub.r.sup.1 R.sub.s.sup.2 wherein R 1 and R 2 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 10 carbon atoms, X and Y each independently is OR 3 or OSiR 4 R 5 R 6 , R 3 is a hydrocarbon radical having 1 to 10 carbon atoms, R 4 , r 5 and R 6 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 12 carbon atoms, α and β each independently is a number more than zero and β/α is from 1 to 10, p+ q+ r+ s= 3α + 2β, and 0<( p+q/(α+β)≦0.8, or (b) (ii) reaction product of the complex having the formula (i) wherein p and q are 0 with a linear or cyclic siloxane compound (ii) having a constitutional unit ##STR4## wherein R 7 and R 8 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 10 carbon atoms, with (B) at least one titanium or vanadium compound (iii) having at least one halogen atom, and subsequently reacting the thus obtained hydrocarbon insoluble reaction product (C) with an organoaluminum compound (D) of the formula AlR.sub.m.sup.9 Z.sub.3-m wherein R 9 is a hydrocarbon radical having 1 to 20 carbon atoms, Z is selected from the group consisting of a hydrogen atom, halogen atom, alkoxy, aryloxy and siloxy groups, and m is a number from 2 to 3.
Claim 3
Dependent Claim
29 words
A process according to claim 1 wherein the material reacted with (iii) is a hydrocarbon-soluble complex containing an organomagnesium bond, and having the general formula Al.sup.αMg.sup.βX.sub.p Y.sub.q R.sub.r.sup.1 R.sub.s.sup.2
Claim 4
Dependent Claim
38 words
A process according to claim 1 wherein (A) is the reaction product of an organoaluminum-magnesium complex of the formula Al.sup.αMg.sup.βR.sub.r.sup.1 R.sub.s.sup.2 with a linear or cyclic siloxane compound having at least two units independently of the formula ##STR5##
Claim 5
Dependent Claim
39 words
A process according to claim 1 wherein X and Y of said organoaluminum-magnesium complex represented by the general formula of Al.sup.αMg.sup.βX p Y q R r 1 R s 2 is each an alkoxy radical or an aryloxy radical.
Claim 6
Dependent Claim
47 words
A process according to claim 1 wherein X and Y of said organoaluminum-magnesium complex represented by the general formula of Al.sup.αMg.sup.βX p Y q R r 1 R s 2 is a siloxy radical represented by the general formula of OSiR 4 R 5 R 6 .
Claim 7
Dependent Claim
34 words
A process according to claim 1 wherein β/α of said organoaluminum-magnesium complex represented by the general formula of Al.sup.αMg.sup.βX p Y q R r 1 R s 2 is in the range of 2-6.
Claim 8
Dependent Claim
34 words
A process according to claim 1 wherein (p p + q)/(α + β) of said organoaluminum-magnesium complex of Al.sup.αMg.sup.βX p Y q R r 1 R s 2 is in the range of 0.30-0.80.
Claim 9
Dependent Claim
31 words
A process according to claim 1 wherein titanium or vanadium compound is titanium tetrachloride, monobutoxytitanium trichloride, monopropoxytitanium trichloride, monoethoxytitanium trichloride, vanadium tetrachloride, vanadyl trichloride or a mixture of the above-mentioned members.
Claim 10
Dependent Claim
25 words
A process according to claim 1 wherein said organoaluminum-magnesium complex is reacted with said titanium or vanadium compound at a temperature lower than 20° C.
Claim 11
Dependent Claim
27 words
A process according to claim 1 wherein said organoaluminum-magnesium complex component and titanium or vanadium compound component are simultaneously added to the reaction zone to effect reaction.
Claim 12
Dependent Claim
33 words
A process according to claim 1 wherein said organoaluminum-magnesium complex is reacted with said titanium or vanadium complex in a ratio of 0.2-5 mols of the former to one mol of the latter.
Claim 13
Dependent Claim
28 words
A process according to claim 1 wherein said organoaluminum compound represented by the general formula of AlR m 9 Z 3-m is trialkyl aluminum or dialkyl aluminum hydride.
Claim 14
Dependent Claim
34 words
A process according to claim 1 wherein said component (D) is reacted with said component (C) in a ratio of 1-3,000 m mols of said component (D) to 1 g of said component (C).
Claim 15
Dependent Claim
253 words
A catalyst prepared by reacting (A) (a) a hydrocarbon-soluble organoaluminum-magnesium complex of the formula Al.sup.αMg.sup.βX.sub.p Y.sub.q R.sub.r.sup.1 R.sub.s.sup.2 wherein R 1 and R 2 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 10 carbon atoms, X and Y each independently is OR 3 or OSiR 4 R 5 R 6 , R 3 is a hydrocarbon radical having 1 to 10 carbon atoms, R 4 , r 5 and R 6 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 12 carbon atoms, α and β each independently is a number more than zero and β/α is from 1 to 10, p+ q+ r+ s= 3α + 2β, and < (p+ q)/(α +β)≦0.8, or b. a reaction product of the complex having the formula (i) wherein p and q are 0 with a linear or a cyclic siloxane compound (ii) having a constitutional unit ##STR6## wherein R 7 and R 8 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 10 carbon atoms, with (B) at least one titanium or vanadium compound (iii) having at least one halogen atom, and subsequently reacting the thus obtained hydrocarbon insoluble reaction product (C) with an organoaluminum compound (D) of the formula AlR.sub.m.sup.9 Z.sub.3-m wherein R 9 is a hydrocarbon radical having 1 to 20 carbon atoms, Z is selected from the group consisting of a hydrogen atom, halogen atom, alkoxy, aryloxy and siloxy groups, and m is a number from 2 to 3.
Claim 16
Dependent Claim
253 words
A catalyst prepared by reacting (A) (a) a hydrocarbon-soluble organoaluminum-magnesium complex of the formula Al.sup.αMg.sup.βX.sub.p Y.sub.q R.sub.r.sup.1 R.sub.s.sup.2 wherein R 1 and R 2 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 10 carbon atoms, X and Y each independently is OR 3 or OSiR 4 R 5 R 6 , R 3 is a hydrocarbon radical having 1 to 10 carbon atoms, R 4 , r 5 and R 6 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 12 carbon atoms, α and β each independently is a number more than zero and β/α is from 1 to 10, p+ q+ r+ s= 3α + 2β, and < (p+ q)/(α +β)≦0.8, or b. a reaction product of the complex having the formula (i) wherein p and q are 0 with a linear or a cyclic siloxane compound (ii) having a constitutional unit ##STR6## wherein R 7 and R 8 each independently is a hydrogen atom or a hydrocarbon radical having 1 to 10 carbon atoms, with (B) at least one titanium or vanadium compound (iii) having at least one halogen atom, and subsequently reacting the thus obtained hydrocarbon insoluble reaction product (C) with an organoaluminum compound (D) of the formula AlR.sub.m.sup.9 Z.sub.3-m wherein R 9 is a hydrocarbon radical having 1 to 20 carbon atoms, Z is selected from the group consisting of a hydrogen atom, halogen atom, alkoxy, aryloxy and siloxy groups, and m is a number from 2 to 3.
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) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |