US3560451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic and nonflammable sulfur composition
Assignee: Societe Nationale des Petroles dAquitaine SA
•
Filing: 1968-02-12
•
Granted: 1971-02-02
•
Expires: 1988-02-12
Abstract
Abstract A NONFLAMMABLE PLASTIC COMPOSITION IS OBTAINED BY MELTING TOGETHER SULFUR WITH THREE COMPOUNDS WHICH ARE: (1) A DITHIOPHOSPHORIC ACID ESTER ACRYLIC HYDROCARBYLS, (2) A VINYL-ARYL HYDROCARBON AND ( 3) A POLYTHIOMETHYLENE-ALKANOL RESIN, THE THREE COMPOUNDS ARE MIXED WITH THE MOLTEN SULFUR SEPARATELY OR JOINTLY, EXCEPT THAT THE ESTER (1) AND THE RESIN (3) ARE NEVER ADDED AT THE SAME TIME, AND THE MOMENTS OF THEIR ADDITION ARE SEPARATED BY A PERIOD OF HEATING THE MIXTURE AT 120 * TO 180*C.
Inventors
- 👤 Jean-Baptiste Signouret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:31
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |