US2632742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire-resistant coating composition and method of making the same
Assignee: Armstrong World Industries Inc
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Filing: 1952-01-19
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Granted: 1953-03-24
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Expires: 1972-01-19
Abstract
No abstract record available.
Inventors
- 👤 Lewis W Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:46
CPC Classifications
C; C09; C09D; C09D103/00; C09D103/02; C09D5/00; C09D5/18; C09D5/185; D; D21; D21J; D21J1/00; D21J1/08; Y; Y10; Y10S; Y10S260/00; Y10S260/47
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A FIRE-RESISTANT COATING COMPOSITION FOR FIBERBOARD AND THE LIKE COMPRISING A MIXTURE OF (1) THE HEAT DEGRADATION PRODUCT OF (A) AN AMYLACEOUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF THIN BOILING STARCH, PEARL STARCH, AND MIXTURES THEROF AND (B) A PHOSPHATE SELECTED FROM THE GROUP CONSISTING OF MONOAMMONIUM PHOSPHATE, DIAMMONIUM PHOSPHATE, AND MIXTURES THEREOF, OBTAINED BY HEATING THE STARCHPHOSPHATE MIXTURE TO A TEMPERATURE BETWEEN 170* F. AND 200* F., (2) A DICYANDIAMIDE-ALDEHYDE RESIN, AND (3) PHOSPHORIC ACID.
Claim 2
Dependent Claim
77 words
A FIRE-RESISTANT COATING COMPOSITION FOR FIBERBOARD AND THE LIKE COMPRISING A MIXTURE OF (1) THE HEAT DEGRADATION PRODUCT OF (A) AN AMYLACEOUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF THIN BOILING STARCH, PEARL STARCH, AND MIXTURES THEROF AND (B) A PHOSPHATE SELECTED FROM THE GROUP CONSISTING OF MONOAMMONIUM PHOSPHATE, DIAMMONIUM PHOSPHATE, AND MIXTURES THEREOF, OBTAINED BY HEATING THE STARCHPHOSPHATE MIXTURE TO A TEMPERATURE BETWEEN 170* F. AND 200* F., (2) A DICYANDIAMIDE-ALDEHYDE RESIN, AND (3) PHOSPHORIC ACID.
References Cited (Backward Citations)
US2452054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |