US2889289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus containing aziridinyl-amine polymers and flame resistant organic textiles
Assignee: Individual
•
Filing: 1956-06-05
•
Granted: 1959-06-02
•
Expires: 1976-06-05
Abstract
No abstract record available.
Inventors
- 👤 Wilson A Reeves
- 👤 Leon H Chance
- 👤 Jr George L Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:22
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A FLAME-RESISTANT POLYMER OBTAINED BY HEALING A MIXTURE OF AN AZIRIDINYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLY (1-AZIRIDINYL) PHOSPHINE OXIDES AND SULFIDES HAVING AT LEAST TWO 1-AZIRIDINYL GROUPS AND AN AMINO COMPOUND HAVING AT LEAST TWO MEMBERS SELECTED FROM THE GROUP CONSISTING OF H-AND-CH2OH ATTACHED TO A TRIVALENT NITROGEN ATOM TO CEASE SAID AZIRDINYL COMPOUND AND SAID AMINO COMPOUND TO REACT WITH EACH OTHER TO FORM A POLYMERIC REACTION PRODUCT, THE PROPORATIONS OF AZIRINDYL COMPOUND TO AMINO COMPOUND BEING FROM ABOUT 1;1 TO ABOUT 1:5 RESPECTIVELY.
Claim 2
Dependent Claim
88 words
A FLAME-RESISTANT POLYMER OBTAINED BY HEALING A MIXTURE OF AN AZIRIDINYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLY (1-AZIRIDINYL) PHOSPHINE OXIDES AND SULFIDES HAVING AT LEAST TWO 1-AZIRIDINYL GROUPS AND AN AMINO COMPOUND HAVING AT LEAST TWO MEMBERS SELECTED FROM THE GROUP CONSISTING OF H-AND-CH2OH ATTACHED TO A TRIVALENT NITROGEN ATOM TO CEASE SAID AZIRDINYL COMPOUND AND SAID AMINO COMPOUND TO REACT WITH EACH OTHER TO FORM A POLYMERIC REACTION PRODUCT, THE PROPORATIONS OF AZIRINDYL COMPOUND TO AMINO COMPOUND BEING FROM ABOUT 1;1 TO ABOUT 1:5 RESPECTIVELY.
References Cited (Backward Citations)
DE863055C
Cited
DE854651C
Cited
DE888853C
Cited
US2660543A
Cited
US2582613A
Cited
US2666750A
Cited
US2606901A
Cited
US2672459A
Cited
US2654738A
Cited
US2682521A
Cited
US2772188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |