Patent US4374753A successfully refreshed from Google Patents.
US4374753A
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Polymerization catalyst and method
Assignee: Enron Chemical Co
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Filing: 1981-07-29
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Granted: 1983-02-22
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Expires: 2001-07-29
Abstract
Abstract A catalyst and method in which the catalyst is used in association with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins. The catalyst is prepared by reacting certain organic silicon compounds with silica, alumina or the like having surface hydroxyl groups, or a mixture thereof, in which the silicon compound reacts with these surface hydroxyl groups, followed by reacting the product of this with an organomagnesium compound and further reacting this product with an alcohol or reacting the product with an alcohol and then with an organomagnesium compound and then with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
Inventors
- 👤 Thomas J. Pullukat
- 👤 Raymond E. Hoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:13
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
91 words
A solid catalyst for use with an alkyl or aryl aluminum cocatalyst in the polymerization and copolymerization of 1-olefins, and prepared by: (1) reacting an organic silicon compound with silica or alumina having surface hydroxyl groups or a mixture thereof, said silicon compound being reactive with said surface hydroxyl groups; (2) reacting the product of (1) with a Group IIA organometallic compound; (3) reacting the product of (2) with an alcohol; and (4) reacting the product of (3) with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
Claim 2
Dependent Claim
91 words
A solid catalyst for use with an alkyl or aryl aluminum cocatalyst in the polymerization and copolymerization of 1-olefins, and prepared by: (1) reacting an organic silicon compound with silica or alumina having surface hydroxyl groups or a mixture thereof, said silicon compound being reactive with said surface hydroxyl groups; (2) reacting the product of (1) with a Group IIA organometallic compound; (3) reacting the product of (2) with an alcohol; and (4) reacting the product of (3) with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
Claim 3
Dependent Claim
22 words
The catalyst of claim 1 wherein the metal of (4) is in a concentration of about 0.1-20 wt.% of said solid product.
Claim 4
Dependent Claim
25 words
The catalyst of claim 1 wherein said Group IIA compound or complex of (2) comprises an alkyl or aryl of magnesium or a magnesium complex.
Claim 5
Dependent Claim
20 words
The catalyst of claim 1 wherein said alcohol comprises ROH in which R is an alkyl of 1-10 carbon atoms.
Claim 6
Dependent Claim
26 words
The catalyst of claim 1 wherein the weight ratio of the Group IIA metal compound of (2) to the metal compound of (4) is from 0.1-100.
Claim 7
Dependent Claim
12 words
The catalyst of claim 5 wherein said weight ratio is about 0.1-20.
Claim 8
Dependent Claim
24 words
The catalyst of claim 1 wherein one or more of said organometallic compounds of (2) contains a halide in addition to the organic moiety.
Claim 9
Dependent Claim
32 words
The catalyst of claim 1 wherein said reaction of (1) is with silica which has been predried at about 100°-200° C. for a time sufficient to remove water prior to said reaction.
Claim 10
Dependent Claim
27 words
The catalyst of claim 1 wherein said organic silicon compound in (1) is in stoichiometric excess thereby facilitating a complete reaction, and said excess is later removed.
Claim 11
Dependent Claim
21 words
The catalyst of claim 1 wherein the product of (1) is separated from any unreacted organic silicon compound and reaction by-products.
Claim 12
Dependent Claim
12 words
The catalyst of claim 10 wherein said separation is by vacuum suction.
Claim 13
Dependent Claim
20 words
The catalyst of claim 10 wherein said separation is by purging with a gas inert to the product of (1).
Claim 14
Dependent Claim
17 words
The catalyst of claim 10 wherein said separation is at a temperature between ambient and 200° C.
Claim 15
Dependent Claim
21 words
The catalyst of claim 1 wherein said aluminum cocatalyst is a trialkyl aluminum, an alkyl aluminum hydride or a mixture thereof.
Claim 16
Dependent Claim
35 words
The catalyst of claim 1 wherein said aluminum cocatalyst is an alkyl aluminum and the alkyl groups comprise hydrocarbon chains that are straight or branched and each chain contains about 1 to 10 carbon atoms.
Claim 17
Dependent Claim
14 words
The catalyst of claim 1 wherein said aluminum cocatalyst comprises an aryl aluminum compound.
Claim 18
Dependent Claim
21 words
The catalyst of claim 1 wherein said aluminum cocatalyst comprises an alkyl aluminum, an alkyl aluminum halide or a mixture thereof.
Claim 19
Dependent Claim
18 words
The catalyst of claim 1 wherein said aluminum cocatalyst comprises a trialkyl aluminum or an alkyl aluminum hydride.
Claim 20
Dependent Claim
25 words
The catalyst of claim 1 wherein the aluminum cocatalyst is in a molar ratio with the product of (2) of from about 0.1-100 to 1.
Claim 21
Dependent Claim
15 words
The catalyst of claim 19 wherein said molar ratio is from about 1-20 to 1.
Claim 22
Independent Claim
93 words
The method of making a solid catalyst for use with an alkyl or aryl aluminum cocatalyst in the polymerization and copolymerization of 1-olefins, comprising: (1) reacting an organic silicon compound with silica or alumina having surface hydroxyl groups or a mixture thereof, said silicon compound being reactive with said surface hydroxyl groups; (2) reacting the product of (1) with a Group IIA organometallic compound; (3) reacting the product of (2) with an alcohol; and (4) reacting the product of (3) with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
Claim 23
Independent Claim
93 words
The method of making a solid catalyst for use with an alkyl or aryl aluminum cocatalyst in the polymerization and copolymerization of 1-olefins, comprising: (1) reacting an organic silicon compound with silica or alumina having surface hydroxyl groups or a mixture thereof, said silicon compound being reactive with said surface hydroxyl groups; (2) reacting the product of (1) with a Group IIA organometallic compound; (3) reacting the product of (2) with an alcohol; and (4) reacting the product of (3) with a halide or alkoxide of titanium, vanadium, zirconium or mixtures of these.
Claim 24
Dependent Claim
22 words
The method of claim 21 wherein the metal of (4) is in a concentration of about 0.1-20 wt.% of said solid product.
Claim 25
Dependent Claim
20 words
The method of claim 21 wherein said alcohol comprises ROH in which R is an alkyl of 1-10 carbon atoms.
Claim 26
Dependent Claim
25 words
The method of claim 21 wherein said Group IIA compound or complex of (2) comprises an alkyl or aryl of magnesium or a magnesium complex.
Claim 27
Dependent Claim
26 words
The method of claim 21 wherein the weight ratio of the Group IIA metal compound of (2) to the metal compound of (4) is from 0.1-100.
Claim 28
Dependent Claim
12 words
The method of claim 25 wherein said weight ratio is about 0.1-20.
Claim 29
Dependent Claim
24 words
The method of claim 21 wherein one or more of said organometallic compounds of (2) contains a halide in addition to the organic moiety.
Claim 30
Dependent Claim
33 words
The method of claim 21 wherein said reaction of (1) is with silica which has been predried at about 100°-200° C. for a time sufficient to remove surface water prior to said reaction.
Claim 31
Dependent Claim
27 words
The method of claim 21 wherein said organic silicon compound in (1) is in stoichiometric excess thereby facilitating a complete reaction, and said excess is later removed.
Claim 32
Dependent Claim
21 words
The method of claim 21 wherein the product of (1) is separated from any unreacted organic silicon compound and reaction by-products.
Claim 33
Dependent Claim
12 words
The method of claim 30 wherein said separation is by vacuum suction.
Claim 34
Dependent Claim
20 words
The method of claim 30 wherein said separation is by purging with a gas inert to the product of (1).
Claim 35
Dependent Claim
17 words
The method of claim 30 wherein said separation is at a temperature between ambient and 200° C.
Claim 36
Dependent Claim
20 words
The method of claim 21 wherein said cocatalyst is a trialkyl aluminum, an alkyl aluminum hydride or a mixture thereof.
Claim 37
Dependent Claim
35 words
The method of claim 1 wherein said aluminum cocatalyst is an alkyl aluminum and the alkyl groups comprise hydrocarbon chains that are straight or branched and each chain contains about 1 to 10 carbon atoms.
Claim 38
Dependent Claim
14 words
The method of claim 21 wherein said aluminum cocatalyst comprises an aryl aluminum compound.
Claim 39
Dependent Claim
21 words
The method of claim 21 wherein said aluminum cocatalyst comprises an alkyl aluminum, an alkyl aluminum halide or a mixture thereof.
Claim 40
Dependent Claim
18 words
The method of claim 21 wherein said aluminum cocatalyst comprises a trialkyl aluminum or an alkyl aluminum hydride.
Claim 41
Dependent Claim
24 words
The method of claim 21 wherein the aluminum cocatalyst is in a molar ratio with the product of (2) of from 0.1-100 to 1.
Claim 42
Dependent Claim
15 words
The method of claim 39 wherein said molar ratio is from about 1-20 to 1.
Claim 43
Dependent Claim
21 words
The catalyst of claim 1 wherein the Group IIA metal of (2) comprises magnesium and the metal of (4) comprises titanium.
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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) | 1986-02-21 | 1986-08-23 | 1987-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-21 | 1990-08-23 | 1991-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-21 | 1994-08-23 | 1995-02-22 | $7700.00 | Window Closed / Lapsed |