US2877217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerizing completely halogen-substituted ethylenes
Assignee: Union Carbide Corp
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Filing: 1954-06-23
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Granted: 1959-03-10
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Expires: 1974-06-23
Abstract
No abstract record available.
Inventors
- 👤 Bruce R Thompson
- 👤 Donald M Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:19
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
PROCESS FOR MAKING HOMOPOLYMERS AND COPOLYMERS OF AT LEAST ONE COMPLETELY HALOGEN-SUBSTITUTED ETHYLENE CONTAINING AT LEAST TWO DIFFERENT HALOGEN ATOMS INCLUDING AT LEAST ONE FLUORINE ATOM AND AT LEAST ONE CHLORINE ATOM, WHICH COMPRISES CONTACTING AND REACTING UNDER POLYMERIZING CONDITIONS OF TEMPERATURE AND PRESSURE AT LEAST ONE COMPLETELY HALOGEN-SUBSTITUTED ETHYLENE HAVING ONLY CHLORINE AND FLUORINE SUBSTITUENTS, AND A SMALL AMOUNT OF A MIXTURE OF BIS(PERHALOACY) PEROXIDES HAVING STRUCTURES CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
72 words
PROCESS FOR MAKING HOMOPOLYMERS AND COPOLYMERS OF AT LEAST ONE COMPLETELY HALOGEN-SUBSTITUTED ETHYLENE CONTAINING AT LEAST TWO DIFFERENT HALOGEN ATOMS INCLUDING AT LEAST ONE FLUORINE ATOM AND AT LEAST ONE CHLORINE ATOM, WHICH COMPRISES CONTACTING AND REACTING UNDER POLYMERIZING CONDITIONS OF TEMPERATURE AND PRESSURE AT LEAST ONE COMPLETELY HALOGEN-SUBSTITUTED ETHYLENE HAVING ONLY CHLORINE AND FLUORINE SUBSTITUENTS, AND A SMALL AMOUNT OF A MIXTURE OF BIS(PERHALOACY) PEROXIDES HAVING STRUCTURES CORRESPONDING TO THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |