US3660346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame-retarded compositions and additive systems therefor
Assignee: Phillips Petroleum Co
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Filing: 1970-08-14
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Granted: 1972-05-02
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Expires: 1990-08-14
Abstract
Abstract FIRE-RETARDANT COMPOSITIONS OF NORMALLY FLAMMABLE ORGANIC MATERIALS ARE PROVIDED BY ADMIXING WITH SAID MATERIALS AN ADDITIVE SYSTEM CONSISTING ESSENTIALLY OF (A) AT LEAST ONE BROMINE-CONTAINING ORGANIC COMPOUND HAVING A BROMINE CONTENT OF A LEAST 30 WEIGHT PERCENT, (B) AT LEAST ONE PARACYCLOPHANE COMPOUND OF THE FORMULA 2,3,8,9-TETRA(R2-),5,6,11,12,13,14,15,16-OCTA(R-)- TRICYCLO(8.2.2.2(4,7))HEXADECA-4,6,10,12,13,15-HEXAENE WHEREIN EACH R IS SELECTED FROM HYDROGEN, CHLORINE, BROMINE AND ALKYL RADICALS HAVING 1 TO 4 CARBON ATOMS, AND OPTIONALLY (C) ANTIMONY TRIOXIDE.
Inventors
- 👤 Roy A Gray
- 👤 Harold R Deck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:17
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/08; C; C08; C08K; C08K5/00; C08K5/01; C08K5/02; C08K5/03
Claims Analysis
Total Claims: 0
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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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |