US2959568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal stabilization of haloethylene polymers
Assignee: Dow Chemical Co
•
Filing: 1956-10-22
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Granted: 1960-11-08
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Expires: 1976-10-22
Abstract
No abstract record available.
Inventors
- 👤 Carl B Havens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:29
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317; C08K5/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A THERMALLY STABLE COMPOSITION COMPRISING A RESINOUS CHLOROETHYLENE POLYMER SELECTED FROM THE GLASS CONSISTING OF THE HOMOPOLYMER OF VINYL CHLORIDE, THE HOMOPOLYMER OF VINYLIDENE CHLORIDE, THE COPOLYMERS OF VINYL CHLORIDE WITH ANOTHER MONOETHYLENICALLY UNSATURATED COMONOMER AND THE COPOLYMERS OF VINYLIDENE CHLORIDE WITH ANOTHER MONOETHYLENICALLY UNSATURATED COMONOMER AND STABILIZING AMOUNTS OF AN INORGANIC SALT SELECTED FROM THE GROUP CONSISTING OF THE SODIUM, LITHIUM, POTASSIUM, BARIUM AND LEAD SALTS OF PHENYL PHOSPHONIC ACID.
Claim 2
Dependent Claim
71 words
A THERMALLY STABLE COMPOSITION COMPRISING A RESINOUS CHLOROETHYLENE POLYMER SELECTED FROM THE GLASS CONSISTING OF THE HOMOPOLYMER OF VINYL CHLORIDE, THE HOMOPOLYMER OF VINYLIDENE CHLORIDE, THE COPOLYMERS OF VINYL CHLORIDE WITH ANOTHER MONOETHYLENICALLY UNSATURATED COMONOMER AND THE COPOLYMERS OF VINYLIDENE CHLORIDE WITH ANOTHER MONOETHYLENICALLY UNSATURATED COMONOMER AND STABILIZING AMOUNTS OF AN INORGANIC SALT SELECTED FROM THE GROUP CONSISTING OF THE SODIUM, LITHIUM, POTASSIUM, BARIUM AND LEAD SALTS OF PHENYL PHOSPHONIC ACID.
References Cited (Backward Citations)
US2739952A
Cited
US2784171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |