Patent US4699962A successfully refreshed from Google Patents.
US4699962A
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Olefin polymerization
Assignee: Phillips Petroleum Co
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Filing: 1984-01-30
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Granted: 1987-10-13
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Expires: 2004-01-30
Abstract
Abstract A process for producing a novel-highly active lanthanide containing catalyst comprising the product produced by reacting a lanthanide hydride, a Lewis acid, and an electron donor ligand with an organoaluminum cocatalyst component and its use in the polymerization of olefins, especially olefins such as ethylene and 1,3-butadiene.
Inventors
- 👤 Henry L. Hsieh
- 👤 Gene H. C. Yeh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:27
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F10/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
144 words
A process for the polymerization of olefins which comprises contacting at least one of 1,3 butadiene and ethylene under polymerization conditions with a catalyst composition consisting essentially of a component A formed by admixing a rare earth metal hydride, a Lewis acid selected from the group consisting of aluminum halide, tin tetrahalide, iron trihalide, boron trihalide, and zinc halide, and an electron donor ligand in a mole ratio of ligand to rare earth metal hydride of 1 to about 20 and a mole ratio of Lewis acid to rare earth metal hydride of 0.1 to about 10, and combining component A with a component B which is an organoaluminum compound with a mole ratio of organoaluminum to rare earth metal hydride ranging from about 10 to about 100 moles per mole and a mole ratio of organoaluminum compound to ligand of at least 1:1.
Claim 2
Dependent Claim
144 words
A process for the polymerization of olefins which comprises contacting at least one of 1,3 butadiene and ethylene under polymerization conditions with a catalyst composition consisting essentially of a component A formed by admixing a rare earth metal hydride, a Lewis acid selected from the group consisting of aluminum halide, tin tetrahalide, iron trihalide, boron trihalide, and zinc halide, and an electron donor ligand in a mole ratio of ligand to rare earth metal hydride of 1 to about 20 and a mole ratio of Lewis acid to rare earth metal hydride of 0.1 to about 10, and combining component A with a component B which is an organoaluminum compound with a mole ratio of organoaluminum to rare earth metal hydride ranging from about 10 to about 100 moles per mole and a mole ratio of organoaluminum compound to ligand of at least 1:1.
Claim 3
Dependent Claim
18 words
A process according to claim 1 wherein said organoaluminum cocatalyst is diethylaluminum hydride, diisobutylaluminum hydride, or triethyl aluminum.
Claim 4
Dependent Claim
140 words
A process for the production of high cis-1,4-polybutadiene which comprises contacting 1,3-butadiene under polymerization conditions with a catalyst composition consisting of a component A formed by admixing a rare earth metal hydride which is neodymium hydride, a Lewis acid which is aluminum chloride or aluminum bromide, and an electron donor ligand which is ethyl benzoate in a mole ratio of ligand to rare earth metal hydride of 2 to about 10 and a mole ratio of Lewis acid to rare earth metal hydride of 1 to about 3 and combining component A with an organoaluminum cocatalyst component B which is diethylaluminum hydride, diisobutylaluminum hydride or triethylaluminum in a mole ratio of organoaluminum to rare earth metal hydride ranging from about 10 to about 100 moles per mole and a mole ratio of organoaluminum compound to ligand of at least 1:1.
Claim 5
Dependent Claim
140 words
A process for the production of high cis-1,4-polybutadiene which comprises contacting 1,3-butadiene under polymerization conditions with a catalyst composition consisting of a component A formed by admixing a rare earth metal hydride which is neodymium hydride, a Lewis acid which is aluminum chloride or aluminum bromide, and an electron donor ligand which is ethyl benzoate in a mole ratio of ligand to rare earth metal hydride of 2 to about 10 and a mole ratio of Lewis acid to rare earth metal hydride of 1 to about 3 and combining component A with an organoaluminum cocatalyst component B which is diethylaluminum hydride, diisobutylaluminum hydride or triethylaluminum in a mole ratio of organoaluminum to rare earth metal hydride ranging from about 10 to about 100 moles per mole and a mole ratio of organoaluminum compound to ligand of at least 1:1.
Claim 6
Dependent Claim
138 words
A process for the production of high density polyethylene which comprises contacting ethylene with a catalyst composition consisting of a component A formed by admixing a rare earth metal hydride which is neodymium hydride, a Lewis acid which is aluminum chloride or aluminum bromide, and an electron donor ligand which is ethyl benzoate in a mole ratio of ligand to rare earth metal hydride of 2 to about 10 and a mole ratio of Lewis acid to rare earth metal hydride of 1 to about 3 and combining component A with an organoaluminum cocatalyst component B which is diethylaluminum hydride, diisobutylaluminum hydride or triethylaluminum in a mole ratio of organoaluminum to rare earth metal hydride ranging from about 10 to about 100 moles per mole and a mole ratio of organoaluminum compound to ligand of at least 1:1.
Claim 7
Dependent Claim
138 words
A process for the production of high density polyethylene which comprises contacting ethylene with a catalyst composition consisting of a component A formed by admixing a rare earth metal hydride which is neodymium hydride, a Lewis acid which is aluminum chloride or aluminum bromide, and an electron donor ligand which is ethyl benzoate in a mole ratio of ligand to rare earth metal hydride of 2 to about 10 and a mole ratio of Lewis acid to rare earth metal hydride of 1 to about 3 and combining component A with an organoaluminum cocatalyst component B which is diethylaluminum hydride, diisobutylaluminum hydride or triethylaluminum in a mole ratio of organoaluminum to rare earth metal hydride ranging from about 10 to about 100 moles per mole and a mole ratio of organoaluminum compound to ligand of at least 1:1.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |