US3900666A
Expired / Lapsed
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Flame retardant textiles by use of nitrogenous type resin and antimony oxide
Assignee: United States Department of Agriculture
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Filing: 1974-06-04
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Granted: 1975-08-19
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Expires: 1994-06-04
Abstract
Abstract Antimony oxide is employed as a flame retardant additive in aqueous solutions of N-methylol resins which are utilized in the treatment of blended textiles whose components are a cellulosic fiber and a halogen containing synthetic fiber. Durable press and/or weather and rot resistance can be imparted to the textile blend in addition to the flame retardance, said properties being dependent on the particular N-methylol resin employed.
Inventors
- 👤 Mard Hubert H St
- 👤 Jr Albert S Cooper
- 👤 Carl Hamalainen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:11
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M11/00; D06M11/32; D06M11/36; D06M11/47; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31866; Y10T428/31942; Y10T428/31949; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2656; Y10T442/2762; Y10T442/277; Y10T442/2828; Y10T442/2844
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
59 words
A PROCESS FOR IMPARTING FLAME RETARDANCY TO A BLENDED COTTON AND HAOGEN-CONTAINING SYNTHETIC TEXTILE, THE PROCESS COMPRISING: A. IMPREGNATING A BLENDED FABRIC WHOSE COMPOSITION IS IN THE RANGE OF ABOUT FROM 85-15 PERCENT TO 15-85 PERCENT BY WEIGHT, RESPECTIVELY, OF COTTON AND A HALOGEN-CONTAINING SYNTHETIC TEXTILE, TO ABOUT FROM 60 TO 100 PRECENT WET PICKUP WITH A SOLUTION CONTAINING:
Claim 2
Dependent Claim
59 words
A PROCESS FOR IMPARTING FLAME RETARDANCY TO A BLENDED COTTON AND HAOGEN-CONTAINING SYNTHETIC TEXTILE, THE PROCESS COMPRISING: A. IMPREGNATING A BLENDED FABRIC WHOSE COMPOSITION IS IN THE RANGE OF ABOUT FROM 85-15 PERCENT TO 15-85 PERCENT BY WEIGHT, RESPECTIVELY, OF COTTON AND A HALOGEN-CONTAINING SYNTHETIC TEXTILE, TO ABOUT FROM 60 TO 100 PRECENT WET PICKUP WITH A SOLUTION CONTAINING:
Claim 3
Dependent Claim
30 words
ABOUT FROM 6 TO 20 PERCENT OF ACROSSLINKING AND/OR POLYMER-FORMING N-METHYLOL-TYPE RESIN SELECTED FROM THE GROUP CONSISTING OF TRIMETHYLOL MELAMINE, METHYLATED METHYLOL MELAMINE, DIMETHYLOL DIHYDROXY ETHYLENE UREA AND PROPYLENE UREA.
Claim 4
Dependent Claim
30 words
ABOUT FROM 6 TO 20 PERCENT OF ACROSSLINKING AND/OR POLYMER-FORMING N-METHYLOL-TYPE RESIN SELECTED FROM THE GROUP CONSISTING OF TRIMETHYLOL MELAMINE, METHYLATED METHYLOL MELAMINE, DIMETHYLOL DIHYDROXY ETHYLENE UREA AND PROPYLENE UREA.
Claim 5
Dependent Claim
47 words
ABOUT FROM 1 TO 8 PERCENT OF AN ACID TUYPE CATALYST SELECTED FROM THE GROUP CONSISTING OF A MIXTURE OF ZINC ACETATE AND ZINC NITRATE, A MIXTURE OF TARTARIC ACID AND AMMONIUM CHLORIDE, A MIXTURE OF CITRIC ACID AND MAGNESIUM CHLORIDE, AMMONIUM CHLORIDE, AND ZIRCONIUM ACETATE, AND
Claim 6
Dependent Claim
47 words
ABOUT FROM 1 TO 8 PERCENT OF AN ACID TUYPE CATALYST SELECTED FROM THE GROUP CONSISTING OF A MIXTURE OF ZINC ACETATE AND ZINC NITRATE, A MIXTURE OF TARTARIC ACID AND AMMONIUM CHLORIDE, A MIXTURE OF CITRIC ACID AND MAGNESIUM CHLORIDE, AMMONIUM CHLORIDE, AND ZIRCONIUM ACETATE, AND
Claim 7
Dependent Claim
47 words
about from 1 to 8 percent of an acid type catalyst selected from the group consisting of a mixture of zinc acetate and zinc nitrate, a mixture of tartaric acid and ammonium chloride, a mixture of citric acid and magnesium chloride, ammonium chloride, and zirconium acetate; and
Claim 8
Dependent Claim
47 words
about from 1 to 8 percent of an acid type catalyst selected from the group consisting of a mixture of zinc acetate and zinc nitrate, a mixture of tartaric acid and ammonium chloride, a mixture of citric acid and magnesium chloride, ammonium chloride, and zirconium acetate; and
Claim 9
Dependent Claim
15 words
The process of claim 1 wherein the crosslinking and/or polymer-forming N-methylol-type resin is trimethylol melamine.
Claim 10
Dependent Claim
16 words
The process of claim 1 wherein the crosslinking and/or polymer-forming N-methylol-type resin is dimethylol dihydroxy ethyleneurea.
Claim 11
Dependent Claim
37 words
about from 1 to 20 percent of antimony oxide as a flame retardant additive; and b. drying at about 2-4 minutes at about 185*F and curing the impregnated blended fabric for about 2-4 minutes at about 285*F.
Claim 12
Dependent Claim
37 words
about from 1 to 20 percent of antimony oxide as a flame retardant additive; and b. drying at about 2-4 minutes at about 185*F and curing the impregnated blended fabric for about 2-4 minutes at about 285*F.
Claim 13
Dependent Claim
36 words
ABOUT FROM 1 TO 20 PERCENT OF ANTIMONY OXIDE AS A FLAME RETARDANT ADDITIVE, AND B. DRYING AT ABOUT 2-4 MINUTESAT ABOUT 185*F AND CURING THE IMPREGNATED BLENDED FABRIC FOR ABOUT 2-4 MINUTES AT ABOUT 285*F.
Claim 14
Dependent Claim
36 words
ABOUT FROM 1 TO 20 PERCENT OF ANTIMONY OXIDE AS A FLAME RETARDANT ADDITIVE, AND B. DRYING AT ABOUT 2-4 MINUTESAT ABOUT 185*F AND CURING THE IMPREGNATED BLENDED FABRIC FOR ABOUT 2-4 MINUTES AT ABOUT 285*F.
Claim 15
Dependent Claim
22 words
The process of claim 1 wherein the crosslinking and/or polymer-forming resin is a mixture of methylolated methylol melamine and dimethylol propylene urea.
Claim 16
Dependent Claim
17 words
The process of claim 1 wherein the catalyst is a mixture of zinc acetate and zinc nitrate.
Claim 17
Dependent Claim
11 words
The process of claim 1 wherein the catalyst is zinc nitrate.
Claim 18
Dependent Claim
17 words
The process of claim 1 wherein the catalyst is a mixture of tartaric acid and ammonium chloride.
Claim 19
Dependent Claim
17 words
The process of claim 1 wherein the catalyst is a mixture of citric acid and magnesium chloride.
Claim 20
Dependent Claim
11 words
The process of claim 1 wherein the catalyst is ammonium chloride.
Claim 21
Dependent Claim
11 words
The process of claim 1 wherein the catalyst is zirconium acetate.
Claim 22
Dependent Claim
11 words
The process of claim 1 wherein the catalyst is magnesium chloride.
Claim 23
Dependent Claim
11 words
The flame-resisting blended fabric produced by the process of claim 2.
Claim 24
Dependent Claim
11 words
The flame-resisting blended fabric produced by the process of claim 3.
Claim 25
Dependent Claim
11 words
The flame-resisting blended fabric produced by the process of claim 4.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |