US3974310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardants for synthetic materials (I)
Assignee: White Chemical Corp
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Filing: 1975-01-06
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Granted: 1976-08-10
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Expires: 1995-01-06
Abstract
Abstract A process for rendering synthetic materials, of synthetic fibers or mixtures of the same flame resistant which entails employing water insoluble flame retardant agents which are treated as colorless pigments, reduced to extremely finely divided condition, suspended in aqueous medium and applied as such or as part of a dispersed dye paste to the fabric, dried and set in place.
Inventors
- 👤 Vladimir Mischutin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:24
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
93 words
A method of rendering a disperse dyeable textile fabric of inherently flammable nature flame resistant, which comprises, immersing said fabric in an aqueous suspension of a water insoluble organic brominated flame retardant compound, which compound melts above 100°C, is insoluble in water, and is in a state of subdivision in a range below about 2 microns in average particle diameter, said immersion in water suspension being at a temperature of boiling and being long enough to have the textile fabric pick up said finely divided flame retardant compound and, thereafter, drying the material.
Claim 2
Independent Claim
93 words
A method of rendering a disperse dyeable textile fabric of inherently flammable nature flame resistant, which comprises, immersing said fabric in an aqueous suspension of a water insoluble organic brominated flame retardant compound, which compound melts above 100°C, is insoluble in water, and is in a state of subdivision in a range below about 2 microns in average particle diameter, said immersion in water suspension being at a temperature of boiling and being long enough to have the textile fabric pick up said finely divided flame retardant compound and, thereafter, drying the material.
Claim 3
Dependent Claim
19 words
The method of claim 1 in which the deposition is performed in sealed equipment at temperatures up to 150°C.
Claim 4
Dependent Claim
53 words
The method in accordance with claim 1, in which the flame retardant polybrominated solid compound is dispersed in water to the amount of 1 - 3 parts in one part of water by weight containing a small amount of wetting agent, a dispersing agent, and a small amount of a protective colloidal material.
Claim 5
Dependent Claim
15 words
The method in accordance with claim 3, in which the flame retardant compound is tetrabromoorthochlorotoluene.
Claim 6
Dependent Claim
15 words
The method in accordance with claim 3, in which the flame retardant compound is hexabromobenzene.
Claim 7
Dependent Claim
17 words
The method in accordance with claim 3, in which the flame retardant compound is tris tribromophenyl phosphate.
Claim 8
Dependent Claim
15 words
The method in accordance with claim 3, in which the flame retardant compound is perbromopentacyclodecane.
Claim 9
Dependent Claim
15 words
The method in accordance with claim 3, in which the flame retardant compound is hexabromobiphenyl.
Claim 10
Dependent Claim
26 words
The method of claim 1 in which application is performed at atmospheric pressure in an aqueous boiling medium to fix said retardant on said textile material.
Claim 11
Dependent Claim
50 words
The method of claim 1 wherein the flame retardant material is selected from the group consisting of: polybrominated biphenyl polybrominated biphenyl oxide polybrominated benzene polybrominated toluene polybrominated chlorotoluene polybrominated phenol polybrominated aniline tris phosphates of polybrominated phenols polybrominated cyclopentane polybrominated cyclohexane polybrominated cyclooctane polybrominated cyclodecane polybrominated cyclododecane hexachlorocyclopentadieno-dibromocyclooctane N,n'-ethyl-bis (dibromo-norbornene-dicarboximide)
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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |