US4874734A
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US
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Process for producing solid catalyst for polymerization of olefins
Assignee: Mitsui Chemicals Inc
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Filing: 1988-03-29
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Granted: 1989-10-17
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Expires: 2008-03-29
Abstract
Abstract A process for producing a solid catalyst for polymerization of olefins, which comprises bringing a solution of an aluminoxane into contact with a suspension of a particulate carrier having supported thereon a compound of a transition metal of Group IVB of the periodic table in a solvent in which the aluminoxane is insoluble or sparingly soluble. In another aspect, the invention provides a process for producing a solid catalyst for polymerization of olefins, which comprises bringing a suspnension of a particulate carrier having supported thereon a compound of a transition metal of Group IVB of the periodic table in a solution of an aluminoxane into contact with a solvent in which the aluminoxane is insoluble or sparingly soluble.
Inventors
- 👤 Mamoru Kioka
- 👤 Norio Kashiwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:48
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F10/00; C08F4/659; C08F4/65912; C08F4/65916; C08F4/6592; Y; Y10; Y10S; Y10S526/00; Y10S526/901; Y10S526/904; Y10S526/943
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
56 words
A process for producing a solid catalyst for polymerization of olefins, which comprises bringing a solution of an aluminoxane into contact with a suspension of a particulate carrier having supported thereon a compound of a transition metal of Group IVB of the periodic table in a solvent in which the aluminoxane is insoluble or sparingly soluble.
Claim 2
Dependent Claim
56 words
A process for producing a solid catalyst for polymerization of olefins, which comprises bringing a solution of an aluminoxane into contact with a suspension of a particulate carrier having supported thereon a compound of a transition metal of Group IVB of the periodic table in a solvent in which the aluminoxane is insoluble or sparingly soluble.
Claim 3
Dependent Claim
25 words
The process of claim 1 wherein the transition metal compound is a zirconium compound having a group containing a conjugated π electron as a ligand.
Claim 4
Dependent Claim
165 words
The process of claim 2 wherein the zirconium compound is a compound represented by the following formula R.sup.1.sub.k R.sup.2.sub.l R.sup.3.sub.m R.sup.4.sub.n Zr (I) wherein R 1 represents a cycloalkadienyl group or a substituted cycloalkadienyl group, each of R 2 , R 3 and R 4 represents a cycloalkadienyl group, an aryl group, an alkyl group, a cycloalkyl group, an aralkyl group, a halogen atom, a hydrogen atom, OR a , SR b , NR c , or PR 2 d , R a , R b , R c and R d each represent a hydrocarbon group such as an alkyl, cycloalkyl, aryl or aralkyl group, or a silyl group, the two R c 's or two R d 's may be linked to each other to form a ring, k is not more than 1, and k+l+m+n is 4; provided that when R 2 represents a cycloalkadienyl group, R 1 and R 2 may be bonded to each other via a lower alkylene group.
Claim 5
Dependent Claim
21 words
The process of claim 3 wherein the cycloalkadienyl groups is a cyclopentadienyl, methylcyclopentadienyl, ethylcyclopentadienyl, pentamethylcyclopentadienyl, dimethylcyclopentadienyl, indenyl ,ethylenebisindenyl, or tetrahydroindenyl group.
Claim 6
Dependent Claim
17 words
The process of claim 3 wherein the zirconium compound is bis(cyclopentadienyl)zirconium dichloride, bis(methylcyclopentadienyl)zirconium dichloride, or ethylenebis-indenylzirconium dichloride.
Claim 7
Dependent Claim
38 words
The process of claim 1 wherein the aluminoxane is at least one organoaluminum compound selected from compounds of the following general formulae ##STR13## wherein R represents a hydrocarbon group, and p is an integer of at least 2.
Claim 8
Dependent Claim
26 words
The process of claim 6 wherein R is a methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl group, and p is an integer of at least 8.
Claim 9
Dependent Claim
50 words
The process of claim 1 wherein the particulate inorganic carrier is at least one inorganic particulate carrier selected from the group consisting of SiO 2 , Al 2 O 3 , MgO, ZrO 2 , TiO 2 , B 2 O 3 , CaO, ZnO, BaO and ThO 2 .
Claim 10
Dependent Claim
19 words
The process of claim 8 wherein the particulate inorganic carrier has a particle diameter of 5 to 200 micrometers.
Claim 11
Dependent Claim
19 words
The process of claim 8 wherein the particulate inorganic carrier has a particle diameter of 10 to 150 micrometers.
Claim 12
Dependent Claim
19 words
The process of claim 8 wherein the particulate inorganic carrier has a particle diameter of 20 to 100 micrometers.
Claim 13
Dependent Claim
33 words
The process of claim 1 wherein the particulate carrier is at least one solid organic compound selected from the group consisting of polyolefins, polyesters, polyamides, polyvinyl halides, polyalkyl methacrylates, polyalkyl acrylates and polystyrenes.
Claim 14
Dependent Claim
19 words
The process of claim 12 wherein the particulate organic compound has a particle diameter of 5 to 200 micrometers.
Claim 15
Dependent Claim
19 words
The process of claim 12 wherein the particulate organic compound has a particle diameter of 10 to 150 micrometers.
Claim 16
Dependent Claim
19 words
The process of claim 12 wherein the particulate organic compound has a particle diameter of 20 to 100 micrometers.
Claim 17
Dependent Claim
45 words
The process of claim 1 wherein the solvent in which the aluminoxane is insoluble or sparingly soluble is at least one solvent selected from the group consisting of aliphatic hydrocarbons having 4 to 16 carbon atoms and alicyclic hydrocarbons having 5 to 16 carbon atoms.
Claim 18
Dependent Claim
30 words
The process of claim 16 wherein the aluminoxane solution is a solution of the aluminoxane in at least one solvent selected from aromatic hydrocarbons having 6 to 16 carbon atoms.
Claim 19
Dependent Claim
56 words
A process for producing a solid catalyst for polymerization of olefins, which comprises bringing a suspension of a particulate carrier having supported thereon a compound of a transition metal of Group IVB of the periodic table in a solution of an aluminoxane into contact with a solvent in which the aluminoxane is insoluble or sparingly soluble.
Claim 20
Dependent Claim
56 words
A process for producing a solid catalyst for polymerization of olefins, which comprises bringing a suspension of a particulate carrier having supported thereon a compound of a transition metal of Group IVB of the periodic table in a solution of an aluminoxane into contact with a solvent in which the aluminoxane is insoluble or sparingly soluble.
Claim 21
Dependent Claim
25 words
The process of claim 18 wherein the transition metal compound is a zirconium compound having a group containing a conjugated π electron as a ligand.
Claim 22
Dependent Claim
165 words
The process of claim 19 wherein the zirconium compound is a compound represented by the following formula R.sup.1.sub.k R.sup.2.sub.l R.sup.3.sub.m R.sup.4.sub.n Zr (I) wherein R 1 represents a cycloalkadienyl group or a substituted cycloalkadienyl group, each of R 2 , R 3 and R 4 represents a cycloalkadienyl group, an aryl group, an alkyl group, a cycloalkyl group, an aralkyl group, a halogen atom, a hydrogen atom, OR a , SR b , NR c , or PR 2 d , R a , R b , R c and R d each represent a hydrocarbon group such as an alkyl, cycloalkyl, aryl or aralkyl group, or a silyl group, the two R c 's or two R d 's may be linked to each other to form a ring, k is not more than 1, and k+l+m+n is 4; provided that when R 2 represents a cycloalkadienyl group, R 1 and R 2 may be bonded to each other via a lower alkylene group.
Claim 23
Dependent Claim
21 words
The process of claim 20 wherein the cycloalkadienyl groups is a cyclopentadienyl, methylcyclopentadienyl, ethylcyclopentadienyl, pentamethylcyclopentadienyl, dimethylcyclopentadienyl, indenyl, ethylenebisindenyl, or tetrahydroindenyl group.
Claim 24
Dependent Claim
17 words
The process of claim 20 wherein the zirconium compound is bis(cyclopentadienyl)zirconium dichloride, bis(methylcyclopentadienyl)zirconium dichloride, or ethylenebis-indenylzirconium dichloride.
Claim 25
Dependent Claim
38 words
The process of claim 18 wherein the aluminoxane is at least one organoaluminum compound selected from compounds of the following general formulae ##STR14## wherein R represents a hydrocarbon group, and p is an integer of at least 2.
Claim 26
Dependent Claim
26 words
The process of claim 23 wherein R is a methyl, ethyl, n-propyl, isopropyl, n-butyl or isobutyl group, and p is an integer of at least 8.
Claim 27
Dependent Claim
50 words
The process of claim 18 wherein the particulate inorganic carrier is at least one inorganic particulate carrier selected from the group consisting of SiO 2 , Al 2 O 3 , MgO, ZrO 2 , TiO 2 , B 2 O 3 , CaO, ZnO, BaO and ThO 2 .
Claim 28
Dependent Claim
19 words
The process of claim 25 wherein the particulate inorganic carrier has a particle diameter of 5 to 200 micrometers.
Claim 29
Dependent Claim
19 words
The process of claim 25 wherein the particulate inorganic carrier has a particle diameter of 10 to 150 micrometers.
Claim 30
Dependent Claim
19 words
The process of claim 25 wherein the particulate inorganic carrier has a particle diameter of 20 to 100 micrometers.
Claim 31
Dependent Claim
33 words
The process of claim 18 wherein the particulate carrier is at least one solid organic compound selected from the group consisting of polyolefins, polyesters, polyamides, polyvinyl halides, polyalkyl methacrylates, polyalkyl acrylates and polystyrenes.
Claim 32
Dependent Claim
19 words
The process of claim 29 wherein the particulate organic compound has a particle diameter of 5 to 200 micrometers.
Claim 33
Dependent Claim
19 words
The process of claim 29 wherein the particulate organic compound has a particle diameter of 10 to 150 micrometers.
Claim 34
Dependent Claim
19 words
The process of claim 29 wherein the particulate organic compound has a particle diameter of 20 to 100 micrometers.
Claim 35
Dependent Claim
45 words
The process of claim 18 wherein the solvent in which the aluminoxane is insoluble or sparingly soluble is at least one solvent selected from the group consisting of aliphatic hydrocarbons having 4 to 16 carbon atoms and alicyclic hydrocarbons having 5 to 16 carbon atoms.
Claim 36
Dependent Claim
30 words
The process of claim 18 wherein the aluminoxane solution is a solution of the aluminoxane in at least one solvent selected from aromatic hydrocarbons having 6 to 16 carbon atoms.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |