US3755197A
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US
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Catalyst system comprising an organoaluminum or an organozinc and a metal salt of a carboxylic acid
Assignee: Phillips Petroleum Co
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Filing: 1969-02-20
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Granted: 1973-08-28
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Expires: 1989-02-20
Abstract
Abstract A polymerization catalyst comprising (a) an organometallic compound selected from the group consisting of organoaluminum and organozinc compounds and (b) a metal salt of a carboxylic acid.
Inventors
- 👤 H Hsieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:10
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/12; C08G65/14; C08G65/22; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/091; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
32 words
A catalyst system ccording to claim 1 including water in an amount such that the molar ratio of organozinc compound to water is within the range of about 0.01:1 to about 100:1.
Claim 2
Dependent Claim
24 words
A catalyst system according to claim 1 wherein the organozinc compound is selected from the group consisting of diorganozincs, organozinc monohalides, and organozinc monohydrides.
Claim 3
Dependent Claim
13 words
A catalyst system according to claim 1 wherein said acid is stearic acid.
Claim 4
Dependent Claim
24 words
A catalyst system according to claim 4 wherein said metal is selected from the group consisting of calcium, barium, zinc, aluminum, cadmium, and magnesium.
Claim 5
Dependent Claim
25 words
A catalyst system ccording to claim 2 wherein the salt of an acid is selected from the group consisting of zinc stearate, and cadmium stearate,
Claim 6
Dependent Claim
167 words
A catalyst system consisting essentially of: a. an organoaluminum compound of the formula R''''nAlXm , wherein R'''' is a hydrocarbon radical selected from the group consisting of saturated aliphatic, saturated cycloaliphatic, and aromatic containing from one to 20 carbon atoms, inclusive; X is a member selected from the group consisting of hydrogen, fluorine, chlorine, bromine, and iodine; n is a number whose value is 1, 2, or 3; m is a number whose value is 0, 1, or 2; and the sum of n and m is 3; and b. a slat of an acid selected from the group consisting of aliphatic carboxylic acids having up to 30 carbon atoms per molecule, cycloaliphatic carboxylic acids having up to 30 carbon atoms per molecule, and aromatic carboxylic acids containing up to three carbon rings per molecule and a metal selected from Groups IIA and IIIA of the periodic table; wherein the molar ratio of organoaluminum compound to carboxylic acid salt is in the range of 0.067:1 to 333:1.
Claim 7
Dependent Claim
32 words
A catalyst system according to claim 7 including water in an amount such that the molar ratio of organoaluminum compound to water is within the range of about 0.01:1 to about 100:1.
Claim 8
Dependent Claim
29 words
A catalyst system according to claim 7 wherein the organoaluminum compound selected from the group consisting of triorganoaluminums, organoaluminum monohalides, organoaluminum dihalides, organoaluminum sesquihalides, organoaluminum monohydrides, and organoaluminum dihydrides.
Claim 9
Dependent Claim
13 words
A catalyst system according to claim 7 wherein said acid is stearic acid.
Claim 10
Dependent Claim
22 words
A catalyst system according to claim 10 wherein said metal is selected from the group consisting of calcium, barium, aluminum, and magnesium.
Claim 11
Dependent Claim
15 words
A catalyst system ccording to claim 7 wherein the carboxylic acid salt is aluminum stearate.
Claim 12
Dependent Claim
13 words
A catalyst system according to claim 7 wherein the organometallic compound is triisobutylaluminum.
Claim 13
Dependent Claim
14 words
A catalyst system according to claim 7 wherein the organoaluminum compound is diethylaluminum chloride.
Claim 14
Dependent Claim
13 words
A catalyst system according to claim 8 wherein the organoaluminum compound is triisobutylaluminum.
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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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |