US3884629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering textiles flame retardant and the product
Assignee: Occidental Chemical Corp
•
Filing: 1973-09-04
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Granted: 1975-05-20
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Expires: 1993-09-04
Abstract
Abstract Normally flammable textile materials are rendered flame retardent by the intimate association therewith of a flame retarding amount of a composition comprising a phosphorus containing N-hydroxymethyl amide and tetrakis(hydroxymethyl) phosphonium chloride.
Inventors
- 👤 James J Duffy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:21
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/288; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/50; C07F9/53; C07F9/5304; D06M13/285
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
36 words
A PROCESS FOR RENDERING NORMALLY FLAMMABLE TEXTILE MATERIALS FLAME RETARDANT WHICH COMPRISES INTIMATELY MIXING SAID TEXTILE MATERIALS WITH A FLAME RETARDANT AMOUNT OF A COMPOSITION COMPRISING A PHOSPHOROUS CONTANING N-HYDROXYMETHYL AMIDE AND TETRAKIS (HYDROXYMETHYL) PHOSPHONIUM CHLORIDE.
Claim 2
Dependent Claim
36 words
A PROCESS FOR RENDERING NORMALLY FLAMMABLE TEXTILE MATERIALS FLAME RETARDANT WHICH COMPRISES INTIMATELY MIXING SAID TEXTILE MATERIALS WITH A FLAME RETARDANT AMOUNT OF A COMPOSITION COMPRISING A PHOSPHOROUS CONTANING N-HYDROXYMETHYL AMIDE AND TETRAKIS (HYDROXYMETHYL) PHOSPHONIUM CHLORIDE.
Claim 3
Dependent Claim
24 words
The process of claim 1 wherein the mole ratio of N-hydroxymethyl amide to tetrakis (hydroxymethyl) phosphonium chloride is from about 1:1 to about 1:0.05.
Claim 4
Dependent Claim
11 words
The process of claim 1 wherein said textile material is cotton.
Claim 5
Dependent Claim
10 words
The process of claim 1 wherein said N-hydroxymethyl amide is
Claim 6
Dependent Claim
10 words
The pocess of claim 1 wherein said N-hydroxymethyl amide is
Claim 7
Dependent Claim
11 words
The process of claim 1 wherein said textile material is wool.
Claim 8
Dependent Claim
16 words
The process of claim 1 wherein said textile material is a blend of polyeSter and cotton.
Claim 9
Dependent Claim
28 words
Flame retardant textile material comprising normally flammable textile material and a flame retardant amount of a composition comprising a phosphorus containing N-hydroxymethyl amide and tetrakis (hydroxymethyl) phosphonium chloride.
Claim 10
Dependent Claim
28 words
Flame retardant textile material comprising normally flammable textile material and a flame retardant amount of a composition comprising a phosphorus containing N-hydroxymethyl amide and tetrakis (hydroxymethyl) phosphonium chloride.
References Cited (Backward Citations)
US2668096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |