US3855134A
Expired / Lapsed
US
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Intumescent composition
Assignee: Cities Service Co
•
Filing: 1972-04-17
•
Granted: 1974-12-17
•
Expires: 1992-04-17
Abstract
Abstract Non-flaming intumescent compositions are obtained by mixing a normally self-extinguishing intumescent agent with a haloorganophosphorus compound, e.g., a phosphate, thiophosphate, phosphonate, phosphonite, phosphinite, phosphite, thiophosphite, tertiary phosphine, phosphine oxide, or phosphine sulfide. Among the preferred haloorganophosphorus compounds are halohydrocarbon phosphates, such as tris(2,3-dibromopropyl)phosphate, tris(2,3dichloropropyl)phosphate, tris(tribromophenyl)phosphate, etc.
Inventors
- 👤 J Green
- 👤 S Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:38
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/18; C09D5/185
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
19 words
A NON-FLAMING INTUMESCENT COMPOSITION CONSISTING ESSENTIALLY OF: A. A NORMALLY SELF-EXTINGUISHING INTUMESCENT AGENT SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
19 words
A NON-FLAMING INTUMESCENT COMPOSITION CONSISTING ESSENTIALLY OF: A. A NORMALLY SELF-EXTINGUISHING INTUMESCENT AGENT SELECTED FROM THE GROUP CONSISTING OF:
Claim 3
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 4
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 5
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 6
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 7
Dependent Claim
22 words
The composition of claim 1 wherein the concentration of haloorganophosphorus compound is about 5-150%, based on the weight of the intumescent agent.
Claim 8
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 9
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 10
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 11
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 12
Dependent Claim
13 words
The composition of claim 1 wherein the haloorganophosphorus compound is a halohydrocarbon phosphate.
Claim 13
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 14
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 15
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 16
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 17
Dependent Claim
11 words
The composition of claim 3 wherein the halohydrocarbon phosphate is tris(2,3-dichloropropyl)phosphate.
Claim 18
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 19
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 20
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 21
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 22
Dependent Claim
11 words
The composition of claim 3 wherein the halohydrocarbon phosphate is tris(2,3-dibromopropyl)phosphate.
Claim 23
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 24
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 25
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 26
Dependent Claim
6 words
SELF-EXTINGUISHING COMPOUNDS CORRESPONDING TO THE FORMULA:
Claim 27
Dependent Claim
11 words
The composition of claim 3 wherein the halohydrocarbon phosphate is tris(bromochloropropyl)phosphate.
Claim 28
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 29
Dependent Claim
6 words
self-extinguishing compounds corresponding to the formula:
Claim 30
Dependent Claim
11 words
The composition on claim 3 wherein the halohydrocarbon phosphate is tris(tribromophenyl)phosphate.
Claim 31
Dependent Claim
11 words
The composition of claim 1 wherein the intumescent agent is bis(p-aminophenyl)sulfone.
Claim 32
Dependent Claim
11 words
The composition of claim 1 wherein the intumescent agent is 1,2-bis(4-acetamidophenylsulfonyl)ethane.
Claim 33
Dependent Claim
11 words
The composition of claim 1 wherein the intumescent agent is sulfanilamide.
Claim 34
Dependent Claim
11 words
The composition of claim 1 wherein the intumescent agent is p-acetamidobenzenesulfonamide.
Claim 35
Dependent Claim
11 words
The composition of claim 1 wherein the intumescent agent is p,p''-oxybis(benzenesulfonamide).
References Cited (Backward Citations)
US3668302A
Cited
US3607745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |