US2912392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intumescent coating composition and articles coated therewith
Assignee: Dow Chemical Co
•
Filing: 1956-06-27
•
Granted: 1959-11-10
•
Expires: 1976-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Elmer K Stilbert
- 👤 Cummings Ira James
- 👤 Gerald E Clock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:39
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/18; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31779; Y10T428/31783; Y10T428/31855; Y10T428/3188; Y10T428/31971; Y10T428/31975
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
AN INTUMESCENT COATING COMPOSITION COMPRISING A 40 TO 60 PERCENT AQUEOUS DISPERSION OF A MIXTURE CONSISTING OF 70 TO 85 PERCENT OF NON-FILM FORMING INTUMESCENT SOLIDS AND ENOUGH OF AN AQUEOUS FILM FORMING LATEX OF POLYVINYL ACETATE TO PROVIDE CORRESPONDINGLY FROM 30 TO 15 PERCENT OF THE POLYMER SOLIDS, BASED ON THE TOTAL WEIGHT OF SOLIDS PRESENT; SAID INTUMESCENT SOLIDS CONSISTING ESSENTIALLY OF (1) A FOAM FORMING INGREDIENT SELECTED FROM THE GROUP CONSISTING OF MONOAMMONIUM PHOSPHATE, DIAMMONIUM PHOSPATE, PHOSPHORIC ACID, AMMONIUM SULFATE, SULFAMIC ACID, AMMONIUM SULFAMATE, AMMONIUM BROMIDE, SODIUM TUNGSTATE, AND SODIUM BORATE; (2) FROM 10 TO 70 PERCENT, BASED ON THE WEIGHT OF
Claim 2
Dependent Claim
104 words
AN INTUMESCENT COATING COMPOSITION COMPRISING A 40 TO 60 PERCENT AQUEOUS DISPERSION OF A MIXTURE CONSISTING OF 70 TO 85 PERCENT OF NON-FILM FORMING INTUMESCENT SOLIDS AND ENOUGH OF AN AQUEOUS FILM FORMING LATEX OF POLYVINYL ACETATE TO PROVIDE CORRESPONDINGLY FROM 30 TO 15 PERCENT OF THE POLYMER SOLIDS, BASED ON THE TOTAL WEIGHT OF SOLIDS PRESENT; SAID INTUMESCENT SOLIDS CONSISTING ESSENTIALLY OF (1) A FOAM FORMING INGREDIENT SELECTED FROM THE GROUP CONSISTING OF MONOAMMONIUM PHOSPHATE, DIAMMONIUM PHOSPATE, PHOSPHORIC ACID, AMMONIUM SULFATE, SULFAMIC ACID, AMMONIUM SULFAMATE, AMMONIUM BROMIDE, SODIUM TUNGSTATE, AND SODIUM BORATE; (2) FROM 10 TO 70 PERCENT, BASED ON THE WEIGHT OF
References Cited (Backward Citations)
US2386995A
Cited
US2755260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |