US2661341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-resistant resinous product and process for producing same
Assignee: Monsanto Chemicals Ltd
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Filing: 1950-06-21
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Granted: 1953-12-01
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Expires: 1970-06-21
Abstract
No abstract record available.
Inventors
- 👤 Howard K Nason
- 👤 Morris L Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:42
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A COMPOUND WHICH RESISTS AFTERGLOW COMPRISING IN COMBINATION A PHENOL-ALDEHYDE RESIN AND A WATER-SOLUBLE REACTION PRODUCT OF ONE MOLE OF PHOSPHORUS OXYCHLORIDE WITH AT LEAST FIVE MOLES OF ANHYDROUS AMMONIA, AT A TEMPERATURE OF AT LEAST 110* C. BUT BELOW 150* C., SAID REACTION PRODUCT HAVING A PH OF FROM 7.0 TO 8.5, A MOLECULAR WEIGHT OF FROM 180 TO 300, AND A NITROGEN TO PHOSPHORUS RATIO OF FROM 2.1 TO 2.3 AND SAID REACTION PRODUCT BEING PRESENT TO THE EXTENT OF FROM 3% TO 90% BY WEIGHT OF SAID COMPOSITION.
Claim 2
Dependent Claim
91 words
A COMPOUND WHICH RESISTS AFTERGLOW COMPRISING IN COMBINATION A PHENOL-ALDEHYDE RESIN AND A WATER-SOLUBLE REACTION PRODUCT OF ONE MOLE OF PHOSPHORUS OXYCHLORIDE WITH AT LEAST FIVE MOLES OF ANHYDROUS AMMONIA, AT A TEMPERATURE OF AT LEAST 110* C. BUT BELOW 150* C., SAID REACTION PRODUCT HAVING A PH OF FROM 7.0 TO 8.5, A MOLECULAR WEIGHT OF FROM 180 TO 300, AND A NITROGEN TO PHOSPHORUS RATIO OF FROM 2.1 TO 2.3 AND SAID REACTION PRODUCT BEING PRESENT TO THE EXTENT OF FROM 3% TO 90% BY WEIGHT OF SAID COMPOSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |