US2911322A - Field treatment for making cellulosic fabrics flameproof and resistant to certain chemical warfare gases - Google Patents
Field treatment for making cellulosic fabrics flameproof and resistant to certain chemical warfare gases Download PDFInfo
- Publication number
- US2911322A US2911322A US693213A US69321357A US2911322A US 2911322 A US2911322 A US 2911322A US 693213 A US693213 A US 693213A US 69321357 A US69321357 A US 69321357A US 2911322 A US2911322 A US 2911322A
- Authority
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- United States
- Prior art keywords
- fabric
- flameproof
- chemical warfare
- resistant
- certain chemical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004744 fabric Substances 0.000 title claims description 31
- 238000011282 treatment Methods 0.000 title description 18
- 239000007789 gas Substances 0.000 title description 15
- 239000000126 substance Substances 0.000 title description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- YTVQIZRDLKWECQ-UHFFFAOYSA-N 2-benzoylcyclohexan-1-one Chemical compound C=1C=CC=CC=1C(=O)C1CCCCC1=O YTVQIZRDLKWECQ-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000007605 air drying Methods 0.000 claims description 6
- 239000002575 chemical warfare agent Substances 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- MBHRHUJRKGNOKX-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]methanol Chemical compound NC1=NC(N)=NC(NCO)=N1 MBHRHUJRKGNOKX-UHFFFAOYSA-N 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 4
- 239000007900 aqueous suspension Substances 0.000 claims description 3
- 238000009877 rendering Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims 1
- ORGHESHFQPYLAO-UHFFFAOYSA-N vinyl radical Chemical class C=[CH] ORGHESHFQPYLAO-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 description 17
- 239000004753 textile Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- LFHISGNCFUNFFM-UHFFFAOYSA-N chloropicrin Chemical compound [O-][N+](=O)C(Cl)(Cl)Cl LFHISGNCFUNFFM-UHFFFAOYSA-N 0.000 description 4
- 238000007706 flame test Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- QAVNPEXSDFTPPL-UHFFFAOYSA-N 1,1-dichloro-3,3-bis(2,4,6-trichlorophenyl)urea Chemical compound ClC1=C(C(=CC(=C1)Cl)Cl)N(C(N(Cl)Cl)=O)C1=C(C=C(C=C1Cl)Cl)Cl QAVNPEXSDFTPPL-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- -1 methylol compounds Chemical class 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- GTVVADNAPPKOSH-PLNGDYQASA-N (z)-4-butan-2-yloxy-4-oxobut-2-enoic acid Chemical compound CCC(C)OC(=O)\C=C/C(O)=O GTVVADNAPPKOSH-PLNGDYQASA-N 0.000 description 1
- SQAINHDHICKHLX-UHFFFAOYSA-N 1-naphthaldehyde Chemical class C1=CC=C2C(C=O)=CC=CC2=C1 SQAINHDHICKHLX-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- VGGLHLAESQEWCR-UHFFFAOYSA-N N-(hydroxymethyl)urea Chemical compound NC(=O)NCO VGGLHLAESQEWCR-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- USDJGQLNFPZEON-UHFFFAOYSA-N [[4,6-bis(hydroxymethylamino)-1,3,5-triazin-2-yl]amino]methanol Chemical compound OCNC1=NC(NCO)=NC(NCO)=N1 USDJGQLNFPZEON-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/423—Amino-aldehyde resins
- D06M15/43—Amino-aldehyde resins modified by phosphorus compounds
- D06M15/431—Amino-aldehyde resins modified by phosphorus compounds by phosphines or phosphine oxides; by oxides or salts of the phosphonium radical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/92—Fire or heat protection feature
- Y10S428/921—Fire or flameproofing
Definitions
- This invention relates to a combination of treatments which render cellulosic materials resistant to the propagaprocess appears to bethespontaneous decomposition o the chosen catalyst to give acidic substances which bring about the reaction between the tetrakis-(hydroxymethyl) phosphonium chloride and methylol compounds.
- the tetrakis-(hydroxymethyl) phosphonium chloride resin mixtures are prepared as prescribed by the literature (W. A. Reeves and J. D. Guthrie, Textile World, vol. 104, No. 2, page 101, February 1954), applied to fabrics by dripping and pressing between rollers, and air dried, the resulting polymer is not wash fast, and does not make the fabric flameproof.
- a primary object of this invention is to provide a field treatment for textile clothing material such as cotton sateen which will provide an air permeable cloth suitable for the usual textile applications and sufliciently adsorptive or destructive of certain chemical warfare gases or liquid agents to protect a person covered by the treated textile and permit him to find-shelter from the gas or other agents.
- An additional object is to provide this protection against such gases under conditions which would normally result in burning of the fabric, such as would be the case under attack by incendiary devices.
- the flameproofing agents utilized in this combined treatment comprise those polymeric flameproofers for cellulose which result from the reaction of tetrakis (hydroxymethyl) phosphonium chloride with methylol compounds such as the methylol melamines, methylol urea, etc. in the presence of acidic catalysts.
- the gas-proofing agents may be any of a large number of such materials which have been developed for resistance to chemical warfare gases. They may protect by undergoing chemical reaction with the attacking gas and so converting it to a harmless derivative or they may adsorb the gas and prevent it from penetrating the treated fabric.
- the combined treatment described has been designed for use with cellulosic materials, such as fabrics made from cotton, rayon, linen, jute, and hemp; they may be employed with some success to animal fibers such as silk and wool.
- the essential part of the flameproofing step of this shall be a condition of sufficiently low pH to bring about the polymerization reaction between tetrakis (hydroxymethyl) phosphonium chloride and the methylol compound.
- the farbic so treated with the fiameproofing agent may then be further treated by depositing on the surface of the treated fabric a reagent which either adsorbs or reacts with the chemical warfare gas so that its function is not hindered by the presence of other deposited material.
- a reagent which either adsorbs or reacts with the chemical warfare gas so that its function is not hindered by the presence of other deposited material.
- Cotton fabrics treated in the proper'manner have acceptable char lengths when treated with the standard vertical flame test and although permeable to air will prevent the passage of chemical warfare gases, e.g., chloropicrin, for acceptable lengths of time.
- This protective agent is chosen from a group of such materials which are known to resist the passage of specific chemical warfare agents by virtue of either adsorbing or reacting with them.
- activated charcoal suspended in a suitable binder may be applied for the purpose of adsorbing chloropicrin and high molecular weight organic gases or liquids in general, or N,N dichloro-bis (2,4,6 trichlorophenyl) urea may be applied in order to neutralize mustard gas by reacting with it.
- these materials do not form an impervious coating on the surface of the fabric, but rather impregnate the thread, where they serve to adsorb or neutralize the chemical warfare agents while permitting the passage of air through the interstices.
- Other specific treatments may be applied as the need arises.
- Example 1 As prescribed in the literature (W. A. Reeves and I. D. Guthrie, Textile World, vol. 104, No. 2, February 1954), an aqueous solution was made containing 16% tetrakis (hydroxymethyl) phosphonium chloride, 9% tri methylolmelamine, 10% urea and 3% triethanolamine. Samples of cotton sateen were padded to an wet pickup and allowed to air dry overnight to give about a 20% dry pickup.
- Example 2 and allowed to air dry.
- the pickup of the carbon suspension was calculated to be equal to 17.8% of the original weight of the fabric.
- the finished sample was flameproof when tested with the standard vertical flame test and resisted the passage of chloropicrin for 12.2 minutes.
- a process for impregnating fabric with activated carbon which comprises treating the fabric with an aqueous suspension of activated carbon, polymeric carboxylic acid, preferably a copolymer of monosecondarybutyl maleate and styrene, and an emulsified polymer,
- This treatment can be used instead of the treatment with the carbon suspension described-in Examples 1 and 2.
- a process suitable for use by troops in the field for rendering a cellulosic fabric'flameproof which comprises impregnating said fabric with an aqueous solution consisting essentially of tetrakis (hydroxymethyl) phosphonium chloride, a methylol melamine, ammonium hydroxide, and water, rinsing said impregnated fabric with Water, and air drying said impregnated fabric.
- a process suitable for use by troops in the field, for rendering fabric fiameproof and resistant to chemical warfare agents comprising impregnating said fabric with a solution consisting essentially of tetrakis (hydroxymethyl) phosphonium chloride, a methylol melamine, and ammonium hydroxide, air drying said fabric, thereafter impregnating said fabric in an aqueous suspension comprising a vinyl acetate-crotonic acid copolymer and activated carbon, and air drying said fabric.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
2,911,322 Patented Nov.-3 1959.
FIELD TREATMENT FOR MAKING CELLULOSIC FABRICS FLAMEPROOF AND RESISTANT T CERTAIN CHEMICAL WARFARE GASES Elias Klein, Metairie, La., and Jeremiah W. Weaver, Pitcairn, Pa., assignors t0 the United States of America as represented by the Secretary of the Army No Drawing. Application October 29, 1957 Serial No. 693,213
5 Claims. (Cl. 11776) (Granted under Title 35, US. Code (1952), sec. 266) This invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment to us of any royalty thereon.
This invention relates to a combination of treatments which render cellulosic materials resistant to the propagaprocess appears to bethespontaneous decomposition o the chosen catalyst to give acidic substances which bring about the reaction between the tetrakis-(hydroxymethyl) phosphonium chloride and methylol compounds. When the tetrakis-(hydroxymethyl) phosphonium chloride resin mixtures are prepared as prescribed by the literature (W. A. Reeves and J. D. Guthrie, Textile World, vol. 104, No. 2, page 101, February 1954), applied to fabrics by dripping and pressing between rollers, and air dried, the resulting polymer is not wash fast, and does not make the fabric flameproof. A high temperature curing step, which is impractical for use by troops in the field, is necessary to secure a satisfactory treatment as disclosed in the cited article. urea and triethanolamine are replaced with ammonium hydroxide as the acid acceptor, the air-dry treated fabric, after rinsing in water to remove ionic materials, still retains sufficient fiameproofing resin to allow the sample to pass the standard vertical flame test. It is speculated that the spontaneous decomposition of the tetrakis (hydroxymethyl) phosphonium chloride to liberate I-ICl 'and l the evaporation of the excess ammonia operate to pro- Copending patent application Serial No. 693,212, filed on Oct. 29, 1957, describes a combined treatment for textile materials which renders them resistant to burning and to the passage of certain chemical warfare gases. The present invention provides a process for producing such a combined treatment on the textile materials which may be employed by troops in the field.
Heretofore many compositions and treatments have been developed to render textile materials flameproof. Similarly, treatments have been devised to prevent the passage of certain chemical warfare gases through these textile fabrics. However, none of the flameproof treatments which give a permanent finish can be applied in the field, and the known treatments which can be applied in the field involve ionic materials which cannot be used as a substrate for activated carbon gas adsorbent.
A primary object of this invention is to provide a field treatment for textile clothing material such as cotton sateen which will provide an air permeable cloth suitable for the usual textile applications and sufliciently adsorptive or destructive of certain chemical warfare gases or liquid agents to protect a person covered by the treated textile and permit him to find-shelter from the gas or other agents. An additional object is to provide this protection against such gases under conditions which would normally result in burning of the fabric, such as would be the case under attack by incendiary devices.
The flameproofing agents utilized in this combined treatment comprise those polymeric flameproofers for cellulose which result from the reaction of tetrakis (hydroxymethyl) phosphonium chloride with methylol compounds such as the methylol melamines, methylol urea, etc. in the presence of acidic catalysts.
The gas-proofing agents may be any of a large number of such materials which have been developed for resistance to chemical warfare gases. They may protect by undergoing chemical reaction with the attacking gas and so converting it to a harmless derivative or they may adsorb the gas and prevent it from penetrating the treated fabric.
The combined treatment described has been designed for use with cellulosic materials, such as fabrics made from cotton, rayon, linen, jute, and hemp; they may be employed with some success to animal fibers such as silk and wool.
The essential part of the flameproofing step of this duce a condition of sufficiently low pH to bring about the polymerization reaction between tetrakis (hydroxymethyl) phosphonium chloride and the methylol compound.
The farbic so treated with the fiameproofing agent may then be further treated by depositing on the surface of the treated fabric a reagent which either adsorbs or reacts with the chemical warfare gas so that its function is not hindered by the presence of other deposited material. Cotton fabrics treated in the proper'manner have acceptable char lengths when treated with the standard vertical flame test and although permeable to air will prevent the passage of chemical warfare gases, e.g., chloropicrin, for acceptable lengths of time. This protective agent is chosen from a group of such materials which are known to resist the passage of specific chemical warfare agents by virtue of either adsorbing or reacting with them. For instance, activated charcoal suspended in a suitable binder may be applied for the purpose of adsorbing chloropicrin and high molecular weight organic gases or liquids in general, or N,N dichloro-bis (2,4,6 trichlorophenyl) urea may be applied in order to neutralize mustard gas by reacting with it.
It should be noted that these materials do not form an impervious coating on the surface of the fabric, but rather impregnate the thread, where they serve to adsorb or neutralize the chemical warfare agents while permitting the passage of air through the interstices. Other specific treatments may be applied as the need arises.
The following examples are illustrative of the details of the method of practicing the invention.
Example 1 As prescribed in the literature (W. A. Reeves and I. D. Guthrie, Textile World, vol. 104, No. 2, February 1954), an aqueous solution was made containing 16% tetrakis (hydroxymethyl) phosphonium chloride, 9% tri methylolmelamine, 10% urea and 3% triethanolamine. Samples of cotton sateen were padded to an wet pickup and allowed to air dry overnight to give about a 20% dry pickup.
One of these samples was worked in a suspension containing: 1% wetting agent (Daxad 11, a water soluble sodium salt of a sulfonated naphthalene-formaldehyde condensate), 3.5% suspending agent (Elchem 1273, a vinylacetate-crotonic acid co-polymer), 27% activated carbon and 68.5% water. After working, the sample was padded to about 60% wet pickup and air dried. The finished sample was fiameproof when tested by the stand- But, when the non-volatile ard vertical flame test but resisted the passage of chloropicrin for only 1.5 minutes.
When a similar sample of the fiameproof sateen was rinsed in water to remove contaminating ionic materials, and then treated with the carbon suspension, the gas adsorption was improved but the sample was no longer flameproof.
Example 2 and allowed to air dry. The pickup of the carbon suspension was calculated to be equal to 17.8% of the original weight of the fabric. The finished sample was flameproof when tested with the standard vertical flame test and resisted the passage of chloropicrin for 12.2 minutes.
While the above examples show the details of the application of only one gas-proofing treatment, it will be understood that other similar treatments can be employed. For example, stabilized N,N dichloro-bis (2,4,6 trichlorophenyl) urea may be applied as described in Example 3 of our application, Serial No. 693,212, filed of even date herein and referred to above. Moreover, there is disclosed in application Serial No. 585,583, filed May 17, 1956, now Patent No. 2,875,167, by Francis W. Minor et al., a process for impregnating fabric with activated carbon which comprises treating the fabric with an aqueous suspension of activated carbon, polymeric carboxylic acid, preferably a copolymer of monosecondarybutyl maleate and styrene, and an emulsified polymer,
preferably a butadiene-styrene copolymer latex. This treatment can be used instead of the treatment with the carbon suspension described-in Examples 1 and 2.
We claim:
1. A process suitable for use by troops in the field for rendering a cellulosic fabric'flameproof, which comprises impregnating said fabric with an aqueous solution consisting essentially of tetrakis (hydroxymethyl) phosphonium chloride, a methylol melamine, ammonium hydroxide, and water, rinsing said impregnated fabric with Water, and air drying said impregnated fabric.
2. A process as defined in claim 1 and further com prising impregnating said fiameproofed fabric, following said air drying step with a second material which renders said fabric resistant to chemical warfare agents, said second material comprising an active agent selected from the group consisting of activated carbon and N,N dichloro bis (2,4,6 trichlorophenyl) urea.
3. The process of claim 1 wherein the cellulosic material is cotton.
4. The process of claim 1 wherein said second material comprises activated carbon.
5. A process suitable for use by troops in the field, for rendering fabric fiameproof and resistant to chemical warfare agents comprising impregnating said fabric with a solution consisting essentially of tetrakis (hydroxymethyl) phosphonium chloride, a methylol melamine, and ammonium hydroxide, air drying said fabric, thereafter impregnating said fabric in an aqueous suspension comprising a vinyl acetate-crotonic acid copolymer and activated carbon, and air drying said fabric.
References Cited in the file of this patent UNITED STATES PATENTS 2,810,701 Reeves et a1 Oct. 22, 1957 FOREIGN PATENTS 575,379 Great Britain May 21, 1940
Claims (1)
- 5. A PROCESS SUITABLE FOR USE BY TROOPS IN THE FIELD, FOR RENDERING FABRIC FLAMEPROOF AND RESISTANT TO CHEMICAL WARFARE AGENTS COMPRISING IMPREGNATING SAID FABRIC WITH A SOLUTION CONSISTING ESSENTIALLY OF TETRAKIS (HYDROXYMETHYL) PHOSPHONIUM CHLORIDE, A METHYLOL MELAMINE, AND AMMONIUM HYDROXIDE, AIR DRYING SAID FABRIC, THEREAFTER INPREGNATING SAID FABRIC IN AN AQUEOUS SUSPENSION COMPRISING A VINYL ACETATE-CROONIC ACID COPOLYMER AND ACTIVATED CARBON, AND AIR DRYING SAID FABRIC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US693213A US2911322A (en) | 1957-10-29 | 1957-10-29 | Field treatment for making cellulosic fabrics flameproof and resistant to certain chemical warfare gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US693213A US2911322A (en) | 1957-10-29 | 1957-10-29 | Field treatment for making cellulosic fabrics flameproof and resistant to certain chemical warfare gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2911322A true US2911322A (en) | 1959-11-03 |
Family
ID=24783777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US693213A Expired - Lifetime US2911322A (en) | 1957-10-29 | 1957-10-29 | Field treatment for making cellulosic fabrics flameproof and resistant to certain chemical warfare gases |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2911322A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1285442B (en) * | 1963-04-16 | 1968-12-19 | Hooker Chemical Corp | Process for flame retardant finishing of cellulose textiles |
| US3655422A (en) * | 1970-09-18 | 1972-04-11 | Kimberly Clark Co | Fire retarding treatment |
| US3887553A (en) * | 1972-01-14 | 1975-06-03 | Ciba Geigy Ag | Process for the manufacture of phosphorus-containing condensation products |
| US4026889A (en) * | 1972-01-14 | 1977-05-31 | Ciba-Geigy Corporation | Phosphorus-containing condensation products |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB575379A (en) * | 1940-05-21 | 1946-02-15 | Robert Kingan | Improvements in the treatment of fabrics to render them resistant to noxious gases, vapours and liquids |
| US2810701A (en) * | 1954-11-09 | 1957-10-22 | Wilson A Reeves | Aqueous emulsion-suspension textile treating compositions and processes of treating textiles with same |
-
1957
- 1957-10-29 US US693213A patent/US2911322A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB575379A (en) * | 1940-05-21 | 1946-02-15 | Robert Kingan | Improvements in the treatment of fabrics to render them resistant to noxious gases, vapours and liquids |
| US2810701A (en) * | 1954-11-09 | 1957-10-22 | Wilson A Reeves | Aqueous emulsion-suspension textile treating compositions and processes of treating textiles with same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1285442B (en) * | 1963-04-16 | 1968-12-19 | Hooker Chemical Corp | Process for flame retardant finishing of cellulose textiles |
| US3655422A (en) * | 1970-09-18 | 1972-04-11 | Kimberly Clark Co | Fire retarding treatment |
| US3887553A (en) * | 1972-01-14 | 1975-06-03 | Ciba Geigy Ag | Process for the manufacture of phosphorus-containing condensation products |
| US4026889A (en) * | 1972-01-14 | 1977-05-31 | Ciba-Geigy Corporation | Phosphorus-containing condensation products |
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