US4467044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supported catalyst for polymerization of olefins
Assignee: Akzo America Inc
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Filing: 1982-12-20
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Granted: 1984-08-21
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Expires: 2002-12-20
Abstract
Abstract This invention comprises a catalytic component for polymerizing olefins comprising a siliceous support containing magnesium halide, a transition metal halide, and an electron donor obtained by steps comprising: (a) infusing siliceous oxide with magnesium halide complexed with an alcohol to form a support; (b) reacting the support with an organometallic compound of a metal from Groups I to III of the periodic table to form an intermediate; (c) reacting the intermediate complex with an electron donor to form an intermediary complex; and (d) reacting the intermediary complex with a fluid comprising a transition metal halide.
Inventors
- 👤 Elliot I. Band
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:27
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
97 words
A catalytic component for polymerizing olefins comprising a siliceous support containing magnesium halide and/or manganese halide, a transition metal halide, and an electron donor obtained by steps comprising: (a) infusing siliceous oxide with magnesium halide and/or manganese halide complexed with an alcohol to form a support; (b) reacting the support with an organometallic compound of a metal from Groups I to III of the periodic table to form an intermediate; (c) reacting the intermediate with an electron donor to form an intermediary complex; and (d) reacting the intermediary complex with a fluid comprising a transition metal halide.
Claim 2
Dependent Claim
97 words
A catalytic component for polymerizing olefins comprising a siliceous support containing magnesium halide and/or manganese halide, a transition metal halide, and an electron donor obtained by steps comprising: (a) infusing siliceous oxide with magnesium halide and/or manganese halide complexed with an alcohol to form a support; (b) reacting the support with an organometallic compound of a metal from Groups I to III of the periodic table to form an intermediate; (c) reacting the intermediate with an electron donor to form an intermediary complex; and (d) reacting the intermediary complex with a fluid comprising a transition metal halide.
Claim 3
Dependent Claim
13 words
A catalytic component as in claim 1 wherein the transition metal is titanium.
Claim 4
Dependent Claim
14 words
A catalytic component as in claim 1 wherein the siliceous support is microporous silica.
Claim 5
Dependent Claim
19 words
A catalytic component as in claim 1 wherein the electron donor is an ester of an aromatic carboxylic acid.
Claim 6
Dependent Claim
14 words
A catalytic component as in claim 1 wherein the magnesium halide is magnesium chloride.
Claim 7
Dependent Claim
16 words
A catalytic component as in claim 1 wherein the organometallic compound is a compound of aluminum.
Claim 8
Dependent Claim
56 words
A catalytic component as in claim 1 wherein the siliceous support is a spherical microporous silica with a surface area greater than 200 m 2 /g, the magnesium halide is magnesium chloride, the transition metal halide is titanium tetrachloride, the electron donor is ethyl benzoate, the organometallic compound is a trialkylaluminum, and the alcohol is ethanol.
Claim 9
Dependent Claim
82 words
A process for preparing a catalyst for polymerizing olefins comprising the steps of: (a) infusing siliceous oxide with magnesium halide and/or manganese halide complexed with an alcohol to form a support; (b) reacting the support with an organometallic compound of a metal from Groups I to III of the periodic table to form an intermediate; (c) reacting the intermediate with an electron donor to form an intermediary complex; and (d) reacting the intermediary complex with a fluid comprising a transition metal halide.
Claim 10
Dependent Claim
82 words
A process for preparing a catalyst for polymerizing olefins comprising the steps of: (a) infusing siliceous oxide with magnesium halide and/or manganese halide complexed with an alcohol to form a support; (b) reacting the support with an organometallic compound of a metal from Groups I to III of the periodic table to form an intermediate; (c) reacting the intermediate with an electron donor to form an intermediary complex; and (d) reacting the intermediary complex with a fluid comprising a transition metal halide.
Claim 11
Dependent Claim
12 words
A process as in claim 8 wherein the transition metal is titanium.
Claim 12
Dependent Claim
13 words
A process as in claim 8 wherein the siliceous support is microporous silica.
Claim 13
Dependent Claim
18 words
A process as in claim 8 wherein the electron donor is an ester of an aromatic carboxylic acid.
Claim 14
Dependent Claim
13 words
A process as in claim 8 wherein the magnesium halide is magnesium chloride.
Claim 15
Dependent Claim
15 words
A process as in claim 8 wherein the organometallic compound is a compound of aluminum.
Claim 16
Dependent Claim
55 words
A process as in claim 8 wherein the siliceous support is a spherical microporous silica with a surface area greater than 200 m 2 /g, the magnesium halide is magnesium chloride, the transition metal halide is titanium tetrachloride, the electron donor is ethyl benzoate, the organometallic compound is a trialkylaluminum, and the alcohol is ethanol.
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) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |