US3274133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-extinguishing expandable polymers containing volatile hydrocarbon, organic bromide, and n-nitroso secondary amine
Assignee: Atlantic Richfield Co
•
Filing: 1963-05-09
•
Granted: 1966-09-20
•
Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 Alvin R Ingram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:57
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0095; C08J9/0014; C08K; C08K5/00; C08K5/16; C08K5/32; C08K5/49; C08K5/51; C08K5/52; C08J2325/00; C08J2325/02; C08J2325/04; C08J2325/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A SELF-EXTINGUISHING EXPANDABLE POLYMER OF STYRENE HAVING BEEN RENDERED CAPABLE OF EXPANSION BY THE INCORPORTION THEREIN OF A VOLATILE ALIPHATIC HYDROCARBON BOILING IN THE RANGE OF -10 TO 81*C. AND HAVING DISPERSED THROUGHOUT (1) FROM 0.5 TO 5 PERCENT BY WEIGHT OF AN ORGANIC BROMIDE HAVING A PLURALITY OF BROMINE ATOMS ATTACHED TO CARBON ATOMS OF A RADICAL SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXYL AND ALIPHATIC RADICALS, SAID BROMINE ATOMS CONSTITUTING AT LEAST 30 PERCENT BY WEIGHT OF SAID BROMIDE (2) AND FROM 0.1 TO 3 PERCENT BY WEIGHT OF AN N-NITROSO SECONDARY AMINE WHICH EVOLVES GAS AT A TEMPERATURE OF 150=180*C. WHEN HEATED IN A MIXTURE CONSISTING OF 9 PERCENT BY WEIGHT OF SAID N-NITROSO SECONDARY AMINE, 5 PER CENT BY WEIGHT PENTABROMOETHANE AND 86 PERCENT BY WEIGHT TRIETHYLBENZENE.
Claim 2
Dependent Claim
131 words
A SELF-EXTINGUISHING EXPANDABLE POLYMER OF STYRENE HAVING BEEN RENDERED CAPABLE OF EXPANSION BY THE INCORPORTION THEREIN OF A VOLATILE ALIPHATIC HYDROCARBON BOILING IN THE RANGE OF -10 TO 81*C. AND HAVING DISPERSED THROUGHOUT (1) FROM 0.5 TO 5 PERCENT BY WEIGHT OF AN ORGANIC BROMIDE HAVING A PLURALITY OF BROMINE ATOMS ATTACHED TO CARBON ATOMS OF A RADICAL SELECTED FROM THE GROUP CONSISTING OF CYCLOHEXYL AND ALIPHATIC RADICALS, SAID BROMINE ATOMS CONSTITUTING AT LEAST 30 PERCENT BY WEIGHT OF SAID BROMIDE (2) AND FROM 0.1 TO 3 PERCENT BY WEIGHT OF AN N-NITROSO SECONDARY AMINE WHICH EVOLVES GAS AT A TEMPERATURE OF 150=180*C. WHEN HEATED IN A MIXTURE CONSISTING OF 9 PERCENT BY WEIGHT OF SAID N-NITROSO SECONDARY AMINE, 5 PER CENT BY WEIGHT PENTABROMOETHANE AND 86 PERCENT BY WEIGHT TRIETHYLBENZENE.
References Cited (Backward Citations)
CA568164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |