US3317501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble poly-4-methyl-1-pentene
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-10-16
•
Granted: 1967-05-02
•
Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 William R Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:09
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF POLYMERIZING 4-METHYL-1-PENTENE WHICH COMPRISES CONTACTING 4-METHYL-1-PENTENE AT -20*F. TO +100*F. WITH A SOLID ALUMINUM CHLORIDE CATALAYST, WITH A SOLVENT CONTAINING AT LEAST 4% BY WEIGHT METHYL HALIDE, AND AN EFFECTIVE AMOUNT OF A CATALYST DEACTIVATOR CHOSEN FROM THE GROUP CONSISTING OF ALKYL CHLORIES CONTAINING AT LEAST TWO CARBON ATOMS, DIOLEFINS, AND TERTIARY CARBON-CONTAINING COMPOUNDS OTHER THAN 4-METHYL1-PENTENE.
Claim 2
Independent Claim
60 words
A METHOD OF POLYMERIZING 4-METHYL-1-PENTENE WHICH COMPRISES CONTACTING 4-METHYL-1-PENTENE AT -20*F. TO +100*F. WITH A SOLID ALUMINUM CHLORIDE CATALAYST, WITH A SOLVENT CONTAINING AT LEAST 4% BY WEIGHT METHYL HALIDE, AND AN EFFECTIVE AMOUNT OF A CATALYST DEACTIVATOR CHOSEN FROM THE GROUP CONSISTING OF ALKYL CHLORIES CONTAINING AT LEAST TWO CARBON ATOMS, DIOLEFINS, AND TERTIARY CARBON-CONTAINING COMPOUNDS OTHER THAN 4-METHYL1-PENTENE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |