US4426315A
Expired / Lapsed
US
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Process for the preparation of supported catalysts for the polymerization of olefins
Assignee: Hoechst AG
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Filing: 1982-01-11
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Granted: 1984-01-17
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Expires: 2002-01-11
Abstract
Abstract In a process for the preparation of a supported catalyst for the preparation of polyolefins which have a component A and a component B, wherein component A consists essentially of a reaction product of a compound of a first metal of sub groups IV to VI of the Periodic Table of the Elements with an organic compound of a second metal of main groups I to III of the Periodic Table of the Elements, said reaction being carried out at a temperature of from -60° C. to +40° C., and an inorganic carrier, component B being an organo metallic compound, the improvement comprising suspending the carrier in an agent which is oxygen, sulfur, and moisture free, simultaneously and separately adding to the carrier and the agent the compounds of the first and second metals in liquid or dissolved form, excluding oxygen and moisture from the reaction, and maintaining a molar ratio of the compound of the first metal to the compound of the second metal of 1:3 to 3:1. The use of the catalyst in the polymerization of ethylene both with and without the presence of α olefins is also disclosed.
Inventors
- 👤 Mufit Bahadir
- 👤 Wolfgang Payer
- 👤 Ingrid Forster
- 👤 Hans-Albert Lummen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:46
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
169 words
In a process for the preparation of a supported catalyst for the polymerization of olefins having a component A and a component B, wherein said component A consists essentially of a reaction product of at least one first compound of one or more first metals of subgroups IV to VI of the Periodic Table of the Elements with at least one organic compound of one or more second metals of main groups I to III of the Periodic Table of the Elements, said reaction being carried out at a temperature of from -60° C. to 40° C., and an inorganic carrier, said component B being an organometallic compound, the improvement which comprises suspending said carrier in a suspension agent, said agent being substantially oxygen, sulfur and moisture free, simultaneously and separately adding to said carrier and said agent said first compound and said organic compound in liquid and/or dissolved form, excluding oxygen and moisture, the molar ratio of said first compound to said organic compound being 1:3 to 3:1.
Claim 2
Dependent Claim
169 words
In a process for the preparation of a supported catalyst for the polymerization of olefins having a component A and a component B, wherein said component A consists essentially of a reaction product of at least one first compound of one or more first metals of subgroups IV to VI of the Periodic Table of the Elements with at least one organic compound of one or more second metals of main groups I to III of the Periodic Table of the Elements, said reaction being carried out at a temperature of from -60° C. to 40° C., and an inorganic carrier, said component B being an organometallic compound, the improvement which comprises suspending said carrier in a suspension agent, said agent being substantially oxygen, sulfur and moisture free, simultaneously and separately adding to said carrier and said agent said first compound and said organic compound in liquid and/or dissolved form, excluding oxygen and moisture, the molar ratio of said first compound to said organic compound being 1:3 to 3:1.
Claim 3
Dependent Claim
18 words
The process of claim 1 wherein said first compound and said organic compound are dissolved in a solvent.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein said agent is an inert solvent.
Claim 5
Dependent Claim
19 words
The process of claim 1 wherein said first metals are 0.01% to 15.0% by weight based on said carrier.
Claim 6
Dependent Claim
22 words
The process of claim 4 wherein said first metal is titanium and is 0.01% to 10.0% by weight based on said carrier.
Claim 7
Dependent Claim
14 words
The process of claim 1 wherein said temperature is -20° C. to 10° C.
Claim 8
Dependent Claim
16 words
The process of claim 1 wherein said first metal is titanium, vanadium, zirconium, molybdenum, or tungsten.
Claim 9
Dependent Claim
14 words
The process of claim 7 wherein said first compound is a titanium (IV) compound.
Claim 10
Dependent Claim
60 words
The process of claim 7 wherein said first compound is TiCl 4 , TiBr 4 , TiCl 3 (OC 2 H 5 ), TiCl 3 (O-n-C 3 H 7 ), TiCl 2 (O-n-C 4 H 9 ) 2 , TiCl(O-i-C 3 H 7 ) 3 , Ti(OC 2 H 5 ) 4 , VCl 4 , or VOCl 3 .
Claim 11
Dependent Claim
108 words
The process of claim 1 wherein said organic compound is taken from the class consisting of lithium alkyls; lithium aryls; compounds of the formula MgR n X 2-m , wherein R is straight or branched chain alkyl having 1 to 16 carbon atoms and/or substituted or unsubstituted phenyl, X is chlorine, bromine, or iodine, and m is 1 or 2; compounds of the formula AlR n Y 3-n wherein n is 1 to 3 and Y is chlorine, bromine, iodine, or hydrogen; reaction products of aluminum trialkyls or aluminum dialkyl hydrides having alkyl radicals with 1 to 16 carbon atoms with dienes having 4 to 20 carbon atoms.
Claim 12
Dependent Claim
34 words
The process of claim 10 wherein said organic compound is taken from the class consisting of lithium alkyls, lithium aryls, dialkyl and diaryl magnesium compounds, aluminum trialkyls, aluminum dialkyl monochloride, and alkyl aluminum sesquichlorides.
Claim 13
Dependent Claim
20 words
The process of claim 10 wherein said dienes are taken from the class consisting of 1,4-butadiene, isoprene, 1,3-pentadiene, and myrcene.
Claim 14
Dependent Claim
98 words
The process of claim 10 wherein said organic compound is dimethyl magnesium, diethyl magnesium, diphenyl magnesium, Al(C 2 H 5 ) 3 , Al(n-C 3 H 7 ) 3 , Al(n-C 4 H 9 ) 3 , Al(i-C 4 H 9 ) 3 , Al(n-C 8 H 17 ) 3 , Al(C 2 H 5 ) 2 H, Al(C 3 H 7 ) 2 H, Al(i-C 4 H 9 ) 2 H, (C 2 H 5 ) 2 AlCl, (i-C 4 H 9 ) 2 AlCl, or (C 2 H 5 ) 3 Al 2 Cl 3 .
Claim 15
Dependent Claim
31 words
The process of claim 1 wherein said carrier is taken from the class consisting of inorganic oxides, double carbonates, microglass spheres, glass fibers, carbon fibers, and metal hydroxides, chlorides and oxychlorides.
Claim 16
Dependent Claim
36 words
The process of claim 14 wherein said carrier is silicon dioxide, precipitated kieselguhr, aerosil, aluminum oxide, magnesium oxide, CaMg(CO 3 ) 2 , microglass spheres, glass fibers, carbon fibers, Mg(OH) 2 , or MgCl 2 .
Claim 17
Dependent Claim
18 words
The process of claim 1 wherein said carrier has a particle size of from 1 to 250 microns.
Claim 18
Dependent Claim
23 words
The process of claim 1 wherein said carrier heated to 150° C. to 900° C. for 2 to 20 hours before said reaction.
Claim 19
Dependent Claim
12 words
The process of claim 1 wherein said suspension agent is a hydrocarbon.
Claim 20
Dependent Claim
19 words
The process of claim 18 wherein said agent is pentane, hexane, heptane, cyclohexane, methylcyclohexane, benzine, or diesel oil fractions.
Claim 21
Dependent Claim
12 words
The process of claim 1 wherein said ratio is 1:1 to 3:1.
Claim 22
Dependent Claim
16 words
The process of claim 1 wherein said component B is an activator for said component A.
Claim 23
Dependent Claim
20 words
The process of claim 21 wherein said component B is a compound of the formula AlR n Y 3-n .
Claim 24
Dependent Claim
30 words
The process of claim 22 wherein said component B is AlR 3 or AlR 2 Cl wherein R is straight or branched chain alkyl having 1 to 16 carbon atoms.
Claim 25
Dependent Claim
21 words
The process of claim 1 wherein the molar proportion of said first metals to said second metals is 1:100 to 1:05.
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) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |