US3810862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Char-forming,flame retardant polyolefin composition
Assignee: Phillips Petroleum Co
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Filing: 1972-02-14
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Granted: 1974-05-14
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Expires: 1992-02-14
Abstract
Abstract NORMALLY SOLID PROPYLENE HOMOPOLYMER OR A PROPYLENE COPOLYMER WITH A MINOR AMOUNT OF ANOTHER 1-OLEFIN CONTAINING TWO TO EIGHT CARBON ATOMS PER MOLECULE AND MIXTURES THEREOF ARE FORMED INTO A CHAR-FORMING, FLAME RETARDANT COMPOSITION BY INCORPORATING AMMONIUM POLYPHOSPHATE, DIPEHTAERYTHRITOL, MELAMINE, AND FOR BEST RESULTS AN INORGANIC FILLER. INCLUDED AMONG FILLERS ARE TITANIUM DIOXIDE AND KAOLIN.
Inventors
- 👤 R Mathis
- 👤 J Dix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:13
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053; C08K3/00; C08K3/32; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34922
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |