US4129701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal reactor for the vapor phase polymerization of monomers
Assignee: BP Corp North America Inc
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Filing: 1975-12-19
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Granted: 1978-12-12
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Expires: 1995-12-19
Abstract
Abstract Apparatus and process is herein disclosed by which a polymerizable monomer or mixture thereof can be economically and efficiently converted to polymeric substances with a high yield catalyst and, optionally, co-catalyst by a vapor phase, essentially isobaric, polymerization process using a horizontal, stirred-bed, quench-cooled, essentially total reactor off-gas recycle reactor.
Inventors
- 👤 James L. Jezl
- 👤 Edwin F. Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:08
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/38; B01J8/382; B01J8/1836; B01J8/36; C; C08; C08F; C08F10/00; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/0007; B01J2208/00327; B01J2208/00336; B01J2208/00353; B01J2208/00362; B01J2208/00389; B01J2208/00407; B01J2208/0053; B01J2208/00796; B01J2208/00823; B01J2208/00831; B01J2208/0084; B01J2219/00; B01J2219/18; B01J2219/182; C08F110/00; C08F110/02; C08F210/00; C08F210/16
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
83 words
A continuous process for the vapor phase polymerization of at least one polymerizable monomer in a stirred, horizontal, reactor containing a subfluidized particulate polymer bed wherein at least a portion of the heat of polymerization is removed by evaporative cooling using an inert readily volatilizable liquid, said reactor being divided into two or more individually polymerization-temperature-controllable polymerization sections by one or more barriers so constructed to allow free gas mixing within said reactor and to control movement of said particulate between said sections.
Claim 2
Dependent Claim
83 words
A continuous process for the vapor phase polymerization of at least one polymerizable monomer in a stirred, horizontal, reactor containing a subfluidized particulate polymer bed wherein at least a portion of the heat of polymerization is removed by evaporative cooling using an inert readily volatilizable liquid, said reactor being divided into two or more individually polymerization-temperature-controllable polymerization sections by one or more barriers so constructed to allow free gas mixing within said reactor and to control movement of said particulate between said sections.
Claim 3
Dependent Claim
12 words
The process of claim 1 wherein said monomer is at least ethene.
Claim 4
Dependent Claim
22 words
The process of claim 2 wherein said liquid is propane, a butane, a pentane, a hexane or a closely boiling mixture thereof.
Claim 5
Dependent Claim
12 words
The process of claim 2 wherein said liquid is isobutane or isopentane.
Claim 6
Dependent Claim
12 words
The process of claim 1 wherein said monomer is at least propene.
Claim 7
Dependent Claim
23 words
The process of claim 5 wherein said liquid is propene, propane, a butane, a pentane, a hexane or a closely boiling mixture thereof.
Claim 8
Dependent Claim
10 words
The process of claim 5 wherein said liquid is propene.
Claim 9
Dependent Claim
12 words
The process of claim 1 wherein said monomer is at least butene-1.
Claim 10
Dependent Claim
12 words
The process of claim 1 wherein said monomer is at least 4-methyl-pentene-1.
Claim 11
Dependent Claim
12 words
The process of claim 1 wherein said monomer is at least butadiene.
Claim 12
Dependent Claim
12 words
The process of claim 1 wherein said monomer is at least styrene.
Claim 13
Dependent Claim
13 words
The process of claim 1 wherein said monomer is at least vinyl chloride.
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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) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |