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US4536484A
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Process for preparation of a transition metal component for a catalytic system of polymerization of olefins
Assignee: Arkema France SA
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Filing: 1984-05-25
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Granted: 1985-08-20
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Expires: 2004-05-25
Abstract
Abstract A process for preparation of a transition metal component of a catalytic system for the polymerization of olefins, wherein an organo-magnesium-aluminum reaction product is formed by bringing into contact, a halogenated, alkylated or alkoxylated magnesium compound with an organo-aluminum compound, then subjecting the reaction product to a chlorination and to a treatment by a compound of a transition metal such as Ti, V, Zr and Cr. As an organo-aluminum compound there is used one or several aluminoxane compounds of the formula ##STR1## wherein R' is an alkyl or from C 1 to C 16 , the R"s form together a radical --O-- or designate each a radical R' and n is an integer of from 0 to 20. The transition metal component obtained can be used in combination with a co-catalyst and eventually an electron donor to form a catalytic system apt to polymerize the alpha-olefins.
Inventors
- 👤 Jean-Loup Lacombe
- 👤 Claude Brun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:36
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/904
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
127 words
A process for the preparation of a transition metal component for a catalytic system for the polymerization of olefins, wherein an organo-magnesium-aluminum reaction product is formed in a liquid medium of a halogenated alkylated magnesium compound or an alkylated magnesium compound with an organoaluminum compound, the reaction product being then subjected to a chlorination and to a treatment with a transition metal component selected from the group consisting of Ti, V, Zr and Cr, characterized by using as an organo-aluminum compound, at least one aluminoxane compound of the formula ##STR3## wherein R' designates an alkyl radical of from C 1 to C 16 , the R"s form together a bivalent --O-- radical or designate each an R' radical and n is an integer from 0 to 20.
Claim 2
Dependent Claim
127 words
A process for the preparation of a transition metal component for a catalytic system for the polymerization of olefins, wherein an organo-magnesium-aluminum reaction product is formed in a liquid medium of a halogenated alkylated magnesium compound or an alkylated magnesium compound with an organoaluminum compound, the reaction product being then subjected to a chlorination and to a treatment with a transition metal component selected from the group consisting of Ti, V, Zr and Cr, characterized by using as an organo-aluminum compound, at least one aluminoxane compound of the formula ##STR3## wherein R' designates an alkyl radical of from C 1 to C 16 , the R"s form together a bivalent --O-- radical or designate each an R' radical and n is an integer from 0 to 20.
Claim 3
Dependent Claim
19 words
A process according to claim 1, wherein R' is an alkyl radical of C 1 to C 12 .
Claim 4
Dependent Claim
30 words
A process according to claim 1, wherein the R"s form together a bivalent --O-- radical or designate each an R' radical and n is an integer of 0 to 12.
Claim 5
Dependent Claim
31 words
A process according to claim 1, wherein R' and R" are each an alkyl radical of C 1 to C 12 , and n is an integer of 0 to 12.
Claim 6
Dependent Claim
16 words
A process according to claim 4 wherein n is an integer of from 0 to 8.
Claim 7
Dependent Claim
68 words
A process according to claim 1 wherein the magnesium compound is of the formula YaMg m Xb, wherein Y is an alkyl radical of C 1 to C 12 , X is an alkyl of C 1 to C 12 or a halogen atom, m is a number equal to or above 1, while a and b are numbers equal to or above 0 and such that a+b=2m.
Claim 8
Dependent Claim
20 words
A process according to claim 6 wherein X and Y are alkyl radicals of C 1 to C 8 .
Claim 9
Dependent Claim
12 words
A process according to claim 6 wherein the halogen atom is chlorine.
Claim 10
Dependent Claim
50 words
A process according to claim 1 characterized in that the quantities of the magnesium compound and of the aluminoxane compound reacted are such that the ratio of the number of moles of said magnesium compound to the number of moles of said aluminoxane compound are between about 0.1 and 100.
Claim 11
Dependent Claim
27 words
A process according to claim 9 wherein the ratio of magnesium compound to the number of moles of the aluminoxane compound is between about 0.5 and 20.
Claim 12
Dependent Claim
42 words
A process according to claim 1, characterized in that the reaction between said magnesium compound and said aluminoxane compound is carried out at a temperature going from about -30° C. to the boiling temperature under atmospheric pressure of the reaction liquid medium.
Claim 13
Dependent Claim
40 words
A process according to claim 11, characterized in that the reaction product between the magnesium compound and the aluminoxane compound is subjected to a chlorination and the product resulting from said chlorination is then treated with the transition metal compound.
Claim 14
Dependent Claim
39 words
A process according to claim 1, characterized in that the reaction product between the magnesium compound and the aluminoxane compound is treated with transition metal compound, and the product resulting from said treatment is then subjected to a chlorination.
Claim 15
Dependent Claim
59 words
A process according to claim 12, characterized in that an adjuvant consisting of an inorganic or organic porous carrier is incorporated into the reaction product between the magnesium compound and the aluminoxane compound, said incorporation being effected either during the formation of the reaction medium between said components or during the reaction, or even when the reaction is finished.
Claim 16
Dependent Claim
50 words
A process according to claim 12, characterized in that the product resulting from the chlorination is dissolved in an inert solvent, then an adjuvant consisting of an inorganic or organic porous carrier is impregnated by means of said solution and the impregnated adjuvant is treated with the transition metal compound.
Claim 17
Dependent Claim
38 words
A process according to claim 13, characterized in that an adjuvant consisting of an inorganic or organic porous carrier is incorporated into the reaction medium proceeding from the treatment with the transition metal compound prior to the chlorination.
Claim 18
Dependent Claim
61 words
A process according to claim 12, characterized in that the product, obtained at the end of the stage of chlorination and of treatment with the transition metal compound, which stage is the last in the process, is associated, by crushing together or by mixture in suspension in an inert liquid, with an adjuvant consisting of an inorganic or organic porous carrier.
Claim 19
Dependent Claim
60 words
A process according to claim 12, characterized in that the product obtained at the end of the stage of chlorination and of treatment with the transition metal compound, which stage is the last one in the process, is dissolved in an inert solvent and an adjuvant consisting of an inorganic or organic carrier is impregnated by means of said solution.
Claim 20
Dependent Claim
64 words
A process according to claim 14, characterized in that the adjuvant is selected from the group consisting of SiO 2 , TiO 2 , Al 2 O 3 , ZrO 2 , the zeolites and the mixed oxides containing SiO 2 and one or more metal oxides of the group consisting of ZrO 2 , TiO 2 MgO and Al 2 O 3 .
Claim 21
Dependent Claim
25 words
A process according to claim 12, characterized in that the chlorination is carried out at a temperature going from about 0° C. to 100° C.
Claim 22
Dependent Claim
28 words
A process according to claim 12, characterized in that the chlorination agent is selected from the group consisting of chlorine, SOCl 2 , SiCl 4 and anhydrous HCl.
Claim 23
Dependent Claim
13 words
A process according to claim 21 wherein the chlorination agent is anhydrous HCl.
Claim 24
Dependent Claim
29 words
A process according to claim 12, characterized in that the treatment with the transition metal compound is carried out at a temperature between about -30° C. and 200° C.
Claim 25
Dependent Claim
21 words
A process according to claim 23 wherein the process is conducted at a temperature between about 0° C. and 150° C.
Claim 26
Dependent Claim
82 words
A process according to claim 12, characterized in that the transition metal compound used for the treatment is selected from the group consisting of TiCl 4 , TiCl 3 , VCl 4 , VOCl 3 , CrCl 3 , CrO 3 , chromium acetylacetonate, vanadium acetylacetonate and the titanates and zirconates of the formulas Ti(OR) p Cl(4-p) and Zr(OR) p Cl(4-p), where R represents an alkyl radical of C 1 to C 8 and p designates an integer from 1 to 4.
Claim 27
Dependent Claim
24 words
A process according to claim 1, characterized in that an electron donor consisting of a Lewis base is associated with the transition metal component.
Claim 28
Dependent Claim
46 words
A process according to claim 26, characterized in that the quantity of electron donor used is such that the ratio of the number of magnesium atoms of the transition metal component to the number of molecules of the electron donor is between about 0.5 and 200.
Claim 29
Dependent Claim
15 words
A process according to claim 27 wherein the ratio is between about 1 and 100.
Claim 30
Dependent Claim
32 words
A process according to claim 1, characterized in that the quantity of transition metal compound used is such that the transition metal component contains from about 0.01% to 40% of transition metal.
Claim 31
Dependent Claim
22 words
A process according to claim 29 wherein the transition metal component contains from about 0.1% to 20% by weight of transition metal.
Claim 32
Dependent Claim
60 words
A catalytic system of polymerization of olefins resulting from the combination of a transition metal component with a co-catalyst selected among the organo-metal compounds of the metals of groups I to III of the Periodic Table of the Elements and eventually with an electron donor, characterized in that there is used a transition metal component obtained according to claim 1.
Claim 33
Dependent Claim
64 words
A catalytic system according to claim 31, characterized in that the transition metal component and the co-catalyst are combined in proportions such that the ratio of the number of metal atoms or groups I to III of the Periodic Table of the Elements proceeding from the co-catalyst to the number of transition metal atoms contained in said component is between about 0.5 and 1000.
Claim 34
Dependent Claim
16 words
A catalyst system according to claim 32 wherein the ratio is between about 1 and 400.
Claim 35
Dependent Claim
160 words
A catalytic system according to claim 31, charcterized in that the co-catalyst is selected from the group consisting of: (a) isoprenylaluminum; (b) the organomagnesium compounds of the formula YaMg m X b , wherein Y is an alkyl radical if C 1 to C 12 , X is an alkyl of C 1 to C 12 or a halogen atom, m is a number equal to or above 1, while a and b are numbers equal to or above 0 and such that a+b=2m; (c) the organoaluminum compounds of the formula AlR'" x Cl.sub.(3-x), wherein R'" designates an alkyl radical of C 1 to C 8 and x is a number such that 1≦x≦3 and (d) the aluminoxanes of the formula ##STR4## wherein R' designates an alkyl radical of from C 1 to C 16 , the R"s form together a bivalent --O-- radical or designate each an R' radical, and n is an integer of from 0 to 20.
Claim 36
Dependent Claim
96 words
A catalytic system according to claim 34, characterized in that is is formed by an active prepolymer obtained by bringing into contact one or more alpha-olefins of C 4 to C 12 with a catalytic system resulting from the association of the transition metal component with one or more of said co-catalysts, using from about 2 to 100 moles, alpha-olefin or alpha-olefins of from C 4 to C 12 per gram atom of transition metal present in the transition metal component, or from the association of said active prepolymer with at least one or said co-catalysts.
Claim 37
Dependent Claim
15 words
A catalyst system according to claim 35, wherein about 2 to 50 moles are used.
References Cited (Backward Citations)
US3094568A
Cited
US3231550A
Cited
US4097659A
Cited
US4314912A
Cited
US4347157A
Cited
US4461846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-19 | 1989-02-18 | 1989-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-19 | 1993-02-18 | 1993-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-19 | 1997-02-18 | 1997-08-20 | $7700.00 | Window Closed / Lapsed |