Patent US2927103A successfully refreshed from Google Patents.
US2927103A
Expired / Lapsed
US
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Process for polymerizing olefins
Assignee: Sunoco Inc
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Filing: 1958-02-04
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Granted: 1960-03-01
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Expires: 1978-02-04
Abstract
No abstract record available.
Inventors
- 👤 Schneider Abraham
- 👤 James L Jezl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:30
CPC Classifications
C; C08; C08F; C08F6/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
PROCESS FOR THE POLYMERIZATION OF NORMALLY GASEOUS ALPHA-OLEFINS WHICH COMPRISES CONTACTING, UNDER POLYMERIZING CONDITIONS, A NORMALLY GASEOUS ALPHA-OLEFIN WITH A DISPRESION OF A SUBHALIDE OF A METAL SELECTED FROM THE GROUP CONSITING OF THE METALS OF GROUPS IV, AND VI OF THE PERIODIC TABLE AND AN ALUMINUM ALKYL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM TRIETHYL, ALUMINUM TRISOPROPYL, AND ALUMINUM TRISOBUTYL IN AN INERT, LIQUID REACTION MEDIUM WHEREBY THE ALPHA-OLEFIN IS CONVERTED TO SOLID POLYMERS, SEPARATING SOLID POLYMERS FROM THE LIQUID PORTION OF THE REACTION MIXTURE, AND CONTACTING THE LIQUID PORTION OF THE REACTION MIXTURE WITH AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND ISOBUTYLENE AT A TEMPERATURE OF AT LEAST 100*C., AND RECOVERING AN ALUMINUM ALKYL THEREFROM.
Claim 2
Dependent Claim
120 words
PROCESS FOR THE POLYMERIZATION OF NORMALLY GASEOUS ALPHA-OLEFINS WHICH COMPRISES CONTACTING, UNDER POLYMERIZING CONDITIONS, A NORMALLY GASEOUS ALPHA-OLEFIN WITH A DISPRESION OF A SUBHALIDE OF A METAL SELECTED FROM THE GROUP CONSITING OF THE METALS OF GROUPS IV, AND VI OF THE PERIODIC TABLE AND AN ALUMINUM ALKYL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM TRIETHYL, ALUMINUM TRISOPROPYL, AND ALUMINUM TRISOBUTYL IN AN INERT, LIQUID REACTION MEDIUM WHEREBY THE ALPHA-OLEFIN IS CONVERTED TO SOLID POLYMERS, SEPARATING SOLID POLYMERS FROM THE LIQUID PORTION OF THE REACTION MIXTURE, AND CONTACTING THE LIQUID PORTION OF THE REACTION MIXTURE WITH AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND ISOBUTYLENE AT A TEMPERATURE OF AT LEAST 100*C., AND RECOVERING AN ALUMINUM ALKYL THEREFROM.
References Cited (Backward Citations)
BE537782A
Cited
US2825721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |