US2874198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of perfluorochloroolefin polymers
Assignee: 3M Co
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Filing: 1954-05-26
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Granted: 1959-02-17
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Expires: 1974-05-26
Abstract
No abstract record available.
Inventors
- 👤 William S Barnhart
- 👤 Robert H Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:27
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A COMPOSITION STABILIZED AGAINST THERMAL DEGRADATION WHICH CONSISTS OF AN ADMIXTURE OF A POLYMER CONTAINING MORE THAN 95 MOL PERCENT OF TRIFLUOROCHLOROETHYLENE AND FROM 0 TO LESS THAN 5 MOL PERCENT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF PERFLUOROBUTADIENE, VINYLIDENE FLOURIDE, DIFLUORODICHLOROETHYLENE DIFLUOROETHYLENE, TRIFLUOROETHLENE, PERFLUOROSTYRENE, PERFLUOROCYCLOBUTENE AND PHENYL TRIFLUOROETHYLENE AND BETWEEN ABOUT 0.001 AND ABOUT 10 PERCENT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDES AND ACETATES OF THE ALKALINE EARTH METALS AND THE ACETATES OF THE ALKALI METALS.
Claim 2
Dependent Claim
86 words
A COMPOSITION STABILIZED AGAINST THERMAL DEGRADATION WHICH CONSISTS OF AN ADMIXTURE OF A POLYMER CONTAINING MORE THAN 95 MOL PERCENT OF TRIFLUOROCHLOROETHYLENE AND FROM 0 TO LESS THAN 5 MOL PERCENT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF PERFLUOROBUTADIENE, VINYLIDENE FLOURIDE, DIFLUORODICHLOROETHYLENE DIFLUOROETHYLENE, TRIFLUOROETHLENE, PERFLUOROSTYRENE, PERFLUOROCYCLOBUTENE AND PHENYL TRIFLUOROETHYLENE AND BETWEEN ABOUT 0.001 AND ABOUT 10 PERCENT OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDES AND ACETATES OF THE ALKALINE EARTH METALS AND THE ACETATES OF THE ALKALI METALS.
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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |