US4092251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Durable flame retardant finishes for textile materials
Assignee: Great Lakes Chemical Corp
•
Filing: 1976-02-23
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Granted: 1978-05-30
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Expires: 1996-02-23
Abstract
Abstract Novel flame retardant finishes comprising a water soluble quaternary phosphonium salt, a water soluble organic nitrogen containing compound, a phosphate ester of haloalkanols, an organic solvent characterized by having a flash point of at least 80° F. and a boiling point within the range of about 300° to about 350° F., an emulsifier having a hydrophile lipophile balance value of from about 10 to about 14, and water. These flame retardant finishes are excellent for flame retarding textile materials including polyester/cotton blend fabrics.
Inventors
- 👤 Ray E. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:11
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/244; D06M13/282; D06M13/285; D06M13/292; D06M13/298
Claims Analysis
Total Claims: 52
Claim 1
Independent Claim
200 words
A flame retardant textile finish, said textile being cotton or a blend of cotton and polyester fibers, consisting essentially of: (a) from about 16 percent to about 30 percent of a flame retardant compound of the formula ##STR5## wherein each R is independently selected from halogenated aliphatic groups containing from 2 to about 6 carbon atoms and from 1 to about 3 halogen substituents per group; (b) from about 3.2 percent to about 4.8 percent of a substantially water immiscible organic solvent characterized by having a flash point of at least 80° F. and a boiling point within the range of from about 300° to about 350° F.; (c) from about 3.2 percent to about 4.8 percent of an emulsifying agent possessing a hydophile lipophile balance value of from about 10 to about 14; (d) from about 27 percent to about 41 percent of a water soluble quaternary phosphonium salt selected from the group consisting of tetrakis(hydroxymethyl)phosphonium and tetrakis(methylhydroxymethyl) phosphium salts; (e) from about 10 percent to about 15 percent of a water soluble organic nitrogen containing compound selected from the group consisting of urea, thiourea, guanidine and dicyandiamide (f) from about 20 percent to about 31 percent of water.
Claim 2
Dependent Claim
200 words
A flame retardant textile finish, said textile being cotton or a blend of cotton and polyester fibers, consisting essentially of: (a) from about 16 percent to about 30 percent of a flame retardant compound of the formula ##STR5## wherein each R is independently selected from halogenated aliphatic groups containing from 2 to about 6 carbon atoms and from 1 to about 3 halogen substituents per group; (b) from about 3.2 percent to about 4.8 percent of a substantially water immiscible organic solvent characterized by having a flash point of at least 80° F. and a boiling point within the range of from about 300° to about 350° F.; (c) from about 3.2 percent to about 4.8 percent of an emulsifying agent possessing a hydophile lipophile balance value of from about 10 to about 14; (d) from about 27 percent to about 41 percent of a water soluble quaternary phosphonium salt selected from the group consisting of tetrakis(hydroxymethyl)phosphonium and tetrakis(methylhydroxymethyl) phosphium salts; (e) from about 10 percent to about 15 percent of a water soluble organic nitrogen containing compound selected from the group consisting of urea, thiourea, guanidine and dicyandiamide (f) from about 20 percent to about 31 percent of water.
Claim 3
Dependent Claim
172 words
The flame retardant finish of claim 1 comprising: (a) from about 18 percent to about 22 percent of said flame retardant compound selected from (XH 2 C--XHC--H 2 C--O) 3 --P═O and (XH 2 C--HC(CH 2 X)--O) 3 --P═O where X is chlorine or bromine; (b) from about 3.6 percent to about 4.4 percent of said solvent; (c) from about 3.6 percent to about 4.4 percent of said emulsifying agent comprising an oil soluble metal sulfonate and a polyoxyethylene ether blended in proportions such that the emulsifying agent possesses a value of about 10 to about 14 with respect to its hydrophile lipophile balance; (d) from about 30.4 percent to about 37.2 percent of said water soluble quaternary phosphonium salt, said quaternary phosphonium salt being a tetrakis(hydroxymethyl)phosphonium salt selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate, tetrakis(hydroxymethyl)phosphonium phosphate acetate, tetrakis(hydroxymethyl)phosphonium chloride, and bis(tetrakis(hydroxymethyl)phosphonium)sulfate; (e) from about 11.2 percent to about 13.6 percent of said water soluble organic nitrogen containing compounds; and (f) from about 23.2 percent to about 28.4 percent of said water.
Claim 4
Dependent Claim
20 words
The flame retardant finish of claim 2 wherein said flame retardant compound is (XH 2 C--XHC--H 2 C--O) 3 --P═O.
Claim 5
Dependent Claim
13 words
The flame retardant finish of claim 3 wherein said flame retardant is tris(2,3-dibromopropyl)phosphate.
Claim 6
Dependent Claim
17 words
The flame retardant finish of claim 2 wherein said water soluble organic nitrogen containing compound is urea.
Claim 7
Dependent Claim
23 words
The flame retardant finish of claim 2 wherein said tetrakis(hydroxymethyl)phosphonium salt is selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate and tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 8
Dependent Claim
35 words
The flame retardant finish of claim 2 wherein said flame retardant compound is (XH 2 C--XHC--H 2 C--O) 3 --P═O; and said tetrakis(hydroxymethyl)phosphonium salt selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate and tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 9
Dependent Claim
33 words
The flame retardant finish of claim 7 wherein said flame retardant compound is tris(2,3-dibromopropyl)phosphate, wherein said water soluble organic nitrogen containing compound is urea, and wherein said tetrakis(hydroxymethyl)phosphonium salt is tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 10
Dependent Claim
21 words
The flame retardant finish of claim 2 which also contains from about 0.2 percent to about 0.8 percent of wetting agent.
Claim 11
Dependent Claim
60 words
The flame retardant finish of claim 2 comprising: (a) about 20 percent of said flame retardant compound; (b) about 4 percent of said solvent; (c) about 4 percent of said emulsifying agent; (d) about 33.8 percent of said tetrakis(hydroxymethyl)phosphonium salt; (e) about 12.4 percent of said water soluble organic nitrogen containing compound; and (f) about 25.8 percent of said water.
Claim 12
Dependent Claim
20 words
The flame retardant finish of claim 10 wherein said flame retardant compound is (XH 2 C--XHC--H 2 C--O) 3 --P═O.
Claim 13
Dependent Claim
14 words
The flame retardant finish of claim 11 wherein said flame retardant compound is tris(2,3-dibromopropyl)phosphate.
Claim 14
Dependent Claim
17 words
The flame retardant finish of claim 10 wherein said water soluble ogranic nitrogen containing compound is urea.
Claim 15
Dependent Claim
23 words
The flame retardant finish of claim 10 wherein said tetrakis(hydroxymethyl)phosphonium salt is selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate and tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 16
Dependent Claim
36 words
The flame retardant finish of claim 10 wherein said flame retardant compound is (XH 2 C--XHC--H 2 C--O) 3 --P═O; and said tetrakis(hydroxymethyl)phosphonium salt is selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate and tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 17
Dependent Claim
25 words
The flame retardant finish of claim 15 wherein said flame retardant compound is tris(2,3-dibromopropyl)phosphate, and wherein said water soluble organic nitrogen containing compound is urea.
Claim 18
Dependent Claim
14 words
The flame retardant finish of claim 16 wherein said tetrakis(hydroxymethyl)phosphonium salt is tetrakis(hydroxymethyl)phosphonium oxalate.
Claim 19
Dependent Claim
15 words
The flame retardant finish of claim 16 wherein said tetrakis(hydroxymethyl)phosphonium salt is tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 20
Dependent Claim
16 words
The flame retardant finish of claim 10 which also contains about 0.6 percent of wetting agent.
Claim 21
Dependent Claim
102 words
The flame retardant finish of claim 1 wherein said flame retardant compound is selected from (XH 2 C--XHC--H 2 C--O) 3 --P═O and (XH 2 --HC(CH 2 X)--O) 3 --P═O wherein X is chlorine or bromine; wherein said emulsifying agent comprises an oil soluble metal sulfonate and a polyoxyethylene ether blended in proportions such that the emulsifying agent possesses a value of about 10 to about 14 with respect to its hydrophile lipophile balance; and wherein said water soluble quaternary phosphonium salt is a tetrakis(hydroxymethyl)phosphonium salt selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate, tetrakis(hydroxymethyl)phosphonium phosphate acetate, tetrakis(hydroxymethyl)phosphonium phosphate chloride, and bis(tetrakis(hydroxymethyl)phosphonium) sulfate.
Claim 22
Dependent Claim
20 words
The flame retardant finish of claim 20 wherein said flame retardant compound is (XH 2 C--XHC--H 2 C--O) 3 --P═O.
Claim 23
Dependent Claim
14 words
The flame retardant finish of claim 21 wherein said flame retardant compound is tris(2,3-dibromopropyl)phosphate.
Claim 24
Dependent Claim
17 words
The flame retardant finish of claim 20 wherein said water soluble ogranic nitrogen containing compound is urea.
Claim 25
Dependent Claim
23 words
The flame retardant finish of claim 20 wherein said tetrakis(hydroxymethyl)phosphonium salt is selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate and tetrakis(hydrosymethyl)phosphonium phosphate acetate.
Claim 26
Dependent Claim
35 words
The flame retardant finish of claim 20 wherein said flame retardant comprises (XH 2 C--XHC--H 2 C--0) 3 --P═0; and said tetrakis(hydroxymethyl)phosphonium salt is selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate and tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 27
Dependent Claim
33 words
The flame retardant finish of claim 26 wherein said flame retardant compound is tris(2,3-dibromopropyl)phosphate, wherein said water soluble organic nitrogen containing compound is urea, and wherein said tetrakis(hydroxymethyl)phosphonium salt is tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 28
Dependent Claim
23 words
The flame retardant finish according to claim 20 which also contains from about 0.1 percent to about 1.0 percent of a wetting agent.
Claim 29
Dependent Claim
23 words
The flame retardant finish according to claim 1 which also contains from about 0.1 percent to about 1.0 percent of a wetting agent.
Claim 30
Dependent Claim
24 words
A process for treating textile materials to render them flame retardant which comprises applying to said textile the flame retardant finish of claim 1.
Claim 31
Dependent Claim
10 words
A textile material obtained by the process of claim 29.
Claim 32
Dependent Claim
126 words
An emulsion concentrate for preparing the textile finish of claim 1 comprising: (a) from about 66.0 percent to about 78.5 percent of a flame retardant compound of the formula ##STR6## wherein each R is independently selected from halogenated aliphatic groups conaining from 2 to about 6 carbon atoms and from 1 to about 3 halogen substituents per group; (b) from about 13.2 percent to about 15.7 percent of a substantially water immiscible organic solvent characterized by having a flash point of at least 80° F. and a boiling point within the range of from about 300° to about 350° F.; and (c) from about 13.2 percent to about 15.7 percent of an emulsifying agent possessing a hydrophile lipophile balance value of from 10 to about 14.
Claim 33
Dependent Claim
47 words
The emulsion concentrate of claim 31 comprising: (a) from about 68.5 percent to about 75.7 percent of said flame retardant compound; (b) from about 13.7 percent to about 15.2 percent of said solvent; and (c) from about 13.7 percent to about 15.2 percent of said emulsifying agent.
Claim 34
Dependent Claim
32 words
The emulsion concentrate of claim 32 comprising: (a) about 71.4 percent of said flame retardant compound; (b) about 14.3 percent of said solvent; and (c) about 14.3 percent of said emulsifying agent.
Claim 35
Dependent Claim
73 words
The emulsion concentrate of claim 31 wherein said flame retardant is selected from (XH 2 C--XHC--H 2 C--O) 3 --P═O and (XH 2 C--HC(CH 2 X)--O) 3 --P═O wherein X is chlorine or bromine and wherein said emulsifying agent comprises an oil soluble metal sulfonate and a polyoxyethylene ether blended in proportions such that the emulsifying agent possesses a value of about 10 to about 14 with respect to its hydrophile lipophile balance.
Claim 36
Dependent Claim
19 words
The emulsion concentrate of claim 34 wherein said flame retardant compound is (XH 2 C--XHC--H 2 C--O) 3 --P═O.
Claim 37
Dependent Claim
13 words
The emulsion concentrate of claim 35 wherein said flame retardant compound is tris(2,3-dibromopropyl)phosphate.
Claim 38
Dependent Claim
136 words
An emulsion for preparing the textile finish of claim 1 comprising: (a) from about 45.0 percent to about 55.0 percent of a flame retardant compound of the formula ##STR7## wherein each R is independently selected from halogenated aliphatic groups containing from 2 to about 6 carbon atoms and from 1 to about 3 halogen substituents per group; (b) from about 9.0 percent to about 11.0 percent of a substantially water immiscible organic solvent characterized by having a flash point of at least 80° F. and a boiling point within the range of from about 300° to about 350° F.; (c) from about 9.0 percent to about 11.0 percent of an emulsifying agent possessing a hydrophile lipophile balance of from about 10 to about 14; and (d) from about 27.0 percent to about 33.0 percent of water.
Claim 39
Dependent Claim
58 words
The emulsion of claim 37 comprising: (a) from about 47.5 percent to about 52.5 percent of said flame retardant compound; (b) from about 9.5 percent to about 10.5 percent of said solvent; (c) from about 9.5 percent to about 10.5 percent of said emulsifying agent; and (d) from about 28.5 percent to about 31.5 percent of said water.
Claim 40
Dependent Claim
38 words
The emulsion of claim 38 comprising: (a) about 50 percent of said flame retardant compound; (b) about 10 percent of said solvent; (c) about 10 percent of said emulsifying agent; and (d) about 30 percent of said water.
Claim 41
Dependent Claim
73 words
The emulsion of claim 37 wherein said flame retardant compound is selected from (XH 2 C--XHC--H 2 C--O) 3 --P═O and (XH 2 C--HC(CH 2--X )--O) 3 --P═O wherein X is chlorine or bomine and wherein said emulsifying agent comprises an oil soluble metal sulfonate and a polyoxyethylene ether blended in proportions such that the emulsifying agent possesses a value of about 10 to about 14 with respect to its hydrophile lipophile balance.
Claim 42
Dependent Claim
18 words
The emulsion of claim 40 wherein said flame retardant compound is (XH 2 C--XHC--H 2 C--O) 3 --P═O.
Claim 43
Dependent Claim
12 words
The emulsion of claim 41 wherein said flame retardant compound is tris(2,3-dibromopropyl)phosphate.
Claim 44
Dependent Claim
158 words
An intermediate flame retardant composition comprising: (a) from about 19.6 percent to about 26.6 percent of a flame retardant compound of the formula ##STR8## wherein each R is independently selected from halogenated aliphatic groups containing from 2 to about 6 carbon atoms and from 1 to about 3 halogen substituents per group; (b) from about 3.9 percent to about 5.1 percent of a substantially water immiscible organic solvent characterized by having a flash point of at least 80° F. and a boiling point within the range of from about 300° to about 350° F. (c) from about 3.9 percent to about 5.1 percent of an emulsifying agent possessing a hydrophile lipophile balance value of from about 10 to about 14; (d) from about 32.7 percent to about 44.3 percent of a water soluble quaternary phosphonium salt, selected from the group consisting of tetrakis(hydroxymethyl)phosphonium and tetrakis(methylhydroxymethyl)phosphonium salts; and (e) from about 25.0 percent to about 33.8 percent of water.
Claim 45
Dependent Claim
158 words
An intermediate flame retardant composition comprising: (a) from about 19.6 percent to about 26.6 percent of a flame retardant compound of the formula ##STR8## wherein each R is independently selected from halogenated aliphatic groups containing from 2 to about 6 carbon atoms and from 1 to about 3 halogen substituents per group; (b) from about 3.9 percent to about 5.1 percent of a substantially water immiscible organic solvent characterized by having a flash point of at least 80° F. and a boiling point within the range of from about 300° to about 350° F. (c) from about 3.9 percent to about 5.1 percent of an emulsifying agent possessing a hydrophile lipophile balance value of from about 10 to about 14; (d) from about 32.7 percent to about 44.3 percent of a water soluble quaternary phosphonium salt, selected from the group consisting of tetrakis(hydroxymethyl)phosphonium and tetrakis(methylhydroxymethyl)phosphonium salts; and (e) from about 25.0 percent to about 33.8 percent of water.
Claim 46
Dependent Claim
76 words
The intermediate flame retardant composition of claim 43 comprising: (a) from about 20.8 percent to about 25.4 percent of said flame retardant compound; (b) from about 4.0 percent to about 5.0 percent of said solvent; (c) from about 4.0 percent to about 5.0 percent of said emulsifying agent; (d) from about 34.6 percent to 42.4 percent of said water soluble quaternary phosphonium salt; and (e) from about 26.5 percent to about 32.3 percent of said water.
Claim 47
Dependent Claim
49 words
The intermediate flame retardant finish of claim 44 comprising: (a) about 23.1 percent of said flame retardant compound; (b) about 4.5 percent of said solvent; (c) about 4.5 percent of said emulsifying agent; (d) about 38.5 percent of said tetrakis(hydroxymethyl)phosphonium salt; and (e) about 29.4 percent of said water.
Claim 48
Dependent Claim
101 words
The intermediate flame retardant composition of claim 47 wherein said flame retardant compound is selected from (XH 2 C--XHC--H 2 C--O) 3 --P═O and (XH 2 C--HC(CH 2 X--O) 3 --P═O wherein X is chlorine or bromine; wherein said emulsifying agent comprises an oil soluble metal sulfonate and a polyoxyethylene ether blended in proportions such that the emulsifying agent possesses a value of about 10 to about 14 with respect to its hydrophile lipophile balance; and wherein said water soluble quaternary phosphonium salt is a tetrakis(hydroxymethyl)phosphonium salt selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate, tetrakis(hydroxymethyl)phosphonium acetate, tetrakis(hydroxymethyl)phosphonium chloride, and bis(tetrakis(hydroxymethyl)phosphonium) sulfate.
Claim 49
Dependent Claim
21 words
The intermediate flame retardant composition of claim 46 wherein said flame retardant compound is (XH 2 C--XHC--H 2 C--O) 3 --P═O.
Claim 50
Dependent Claim
15 words
The intermediate flame retardant composition of claim 47 wherein said flame retardant compound is tris(2,3-dibromopropyl)phosphate.
Claim 51
Dependent Claim
24 words
The intermediate flame retardant composition of claim 48 wherein said tetrakis(hydroxymethyl)phosphonium salt is selected from the group comprising tetrakis(hydroxymethyl)phosphonium oxalate and tetrakis(hydroxymethyl)phosphonium phosphate acetate.
Claim 52
Dependent Claim
19 words
The flame retardant finish of claim 51 which also contains about 0.2 to about 0.8 percent of wetting agent.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |