NOVEL SURFACTANT MIXTURE, NOVEL COMPOSITION COMPRISING SAME AND USE THEREOF IN FOAM LIQUIDS FOR FIGHTING FIRES

• US 20190314660A1
• Filed: 12/12/2017
• Published: 10/17/2019
• Est. Priority Date: 12/23/2016
• Status: Active Application

• Current Assignee: Societe D'Exploitation De Produits Pour Les Industries Chimiques Seppic
• Original Assignee: Societe D'Exploitation De Produits Pour Les Industries Chimiques Seppic
• Inventors: CHIRAC, Marie-Francoise, DACOSTA, Georges, GUILBOT, Jerome
• Application Number:
  US16/473,135
• Publication Number:
  US 20190314660A1
• Time in Patent Office: Days
• CPC Class Codes: A62D 1/0071 Foams
• CPC Class Codes: C11D 1/004 Surface-active compounds containing F
• CPC Class Codes: C11D 1/10 Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates thereof
• CPC Class Codes: C11D 1/662 Carbohydrates or derivatives
• CPC Class Codes: C11D 10/04 based on mixtures of surface-active non-soap compounds and soap
• CPC Class Codes: C11D 3/0094 High foaming compositions
• CPC Class Codes: C11D 3/2006 Monohydric alcohols
• CPC Class Codes: C11D 3/201 linear
• CPC Class Codes: C11D 3/2013 fatty or with at least 8 carbon atoms in the alkyl chain
• CPC Class Codes: C11D 3/202 fatty or with at least 8 carbon atoms in the alkyl chain
• CPC Class Codes: C11D 3/2068 Ethers
• CPC Class Codes: C11D 3/221 Mono, di- or trisaccharides or derivatives thereof
• CPC Class Codes: C11D 3/222 Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin

Abstract

Surfactant mixture comprising (i) 50%-99% C1 comprising for 100% of its weight: (a) 65%-90% of a compound R1-C(═O)—NH—CH(COOH)—(CH2CH2)-COOH, R1 represents C7-C17, (b) 10%-35% of a compound R1-C(═O)—OH (ii) 1%-50% C2 comprising for 100% of its weight: (c) 37.5%-100% R3-O-(G3)p-H, R3 represents C12-C16, G3 represents the residue of a reducing sugar, 1.05≤p≤5, (d) 0%-37.5% of an alcohol R3-OH, (e) 0%-12.5% of R4-O-(G4)q-H, R4 represents C4-C7, G4 represents the residue of a reducing sugar, 1.05≤q≤5, (f) 0%-12.5% of an alcohol R4-OH. Use of the surfactant mixture as constituent of a fire-fighting foam liquid. Method for extinguishing a fire.

Claims

1. A surfactant mixture (M₁) comprising, per 100% of its mass:

(i)—

from 50% to 99% by mass of a composition (C₁) comprising, per 100% of its mass;

(α

)—

from 65 mass % to 90 mass % of at least one compound of formula (I);

R₁—

C(═

O)—

NH—

CH(COOH)—

(CH₂)₂—

COOH 

 

(I)

in partially or totally salified acid form in which the group R₁—

C(═

O)—

represents a linear or branched, saturated or unsaturated acyl radical including from 8 to 18 carbon atoms, and

(β

)—

from 10% by mass to 35% by mass of at least one compound of formula (II);

R₁—

C(═

O)—

OH 

 

(II)

in partially or totally salified acid form in which the group R₁ is as defined for formula (I),

(ii)—

from 1% to 50% by mass of a composition (C₂) comprising, per 100% of its mass;

(γ

)—

from 37.5% to 100% by mass of a composition (C₃) or of a mixture of compositions (C₃), said composition (C₃) being represented by formula (III);

R₃—

O-(G₃)_p-H 

 

(III)

in which R₃ represents a linear or branched, saturated or unsaturated aliphatic radical including from 12 to 16 carbon atoms, G₃ represents a reducing sugar residue and p represents a decimal number greater than or equal to 1.05 and less than or equal to 5, said composition (C₃) consisting of a mixture of compounds represented by formulae (III₁), (III₂), (III₃), (III₄) and (III₅);

R₃—

O-(G₃)₁-H 

 

(III₁),

R₃—

O-(G₃)₂-H 

 

(III₂),

R₃—

O-(G₃)₃-H 

 

(III₃),

R₃—

O-(G₃)₄-H 

 

(III₄),

R₃—

O-(G₃)₅-H 

 

(III₅),

in the respective molar proportions a₁, a₂, a₃, a₄ and as, such that;

the sum a₁+a₂+a₃+a₄+a₅ is equal to 1, and

the sum a₁+2a₂+3a₃+4a₄+5a₅ is equal to p;

(δ

)—

from 0% to 37.5% by mass of at least one alcohol of formula (IV);

R₃—

OH 

 

(IV)

in which R₃ is as defined for the preceding formula (III),

(ε

)—

from 0% to 12.5% of a composition (C₄) or of a mixture of compositions (C₄), said composition (C₄) being represented by formula (V);

R₄—

O-(G₄)_q-H 

 

(V)

in which R₄ represents a linear aliphatic radical, chosen from butyl (n-C₄H₉—

), pentyl (n-C₅H₁₁—

), hexyl (n-C₆H₁₃—

) and heptyl (n-C₇H₁₅—

) radicals, G₄ represents a reducing sugar residue and q represents a decimal number greater than or equal to 1.05 and less than or equal to 5, said composition (C₄) consisting of a mixture of compounds represented by formulae (V₁), (V₂), (V₃), (V₄) and (V₅);

R₄—

O-(G₄)₁-H 

 

(V₁),

R₄—

O-(G₄)₂-H 

 

(V₂)

R₄—

O-(G₄)₃-H 

 

(V₃),

R₄—

O-(G₄)₄-H 

 

(V₄),

R₄—

O-(G₄)₅-H 

 

(V₅),

in the respective molar proportions a′

₁, a′

₂, a′

₃, a′

₄ and a′

₅, such that;

the sum a′

₁+a′

₂+a′

₃+a′

₄+a′

₅ is equal to 1, and

the sum a′

₁+2a′

₂+3a′

₃+4a′

₄+5a′

₅ is equal to q; and

(η

)—

from 0% to 12.5% by mass of at least one alcohol of formula (VI);

R₄—

OH 

 

(VI)

in which R₄ is as defined for the preceding formula (V).

2. The surfactant mixture M₁ as defined in claim 1, wherein, in formulae (I) and (II), the group R₁—

C(═

O)—

represents an acyl radical chosen from octanoyl, decanoyl, dodecanoyl, tetradecanoyl, hexadecanoyl, octadecanoyl, 9-octadecenoyl, 9,12-octadecadienoyl and 9,12,15-octadecatrienoyl radicals.

3. The surfactant mixture (M₁) as defined in claim 1, wherein said composition (C₂) comprises, per 100% of its mass:

(γ

)—

a mass proportion of said composition (C₃) of greater than or equal to 70% and less than 100%, and

(δ

)—

a mass proportion of said alcohol of formula (IV) of greater than or equal to 0% and less than or equal to 7.5%,

(ε

)—

a mass proportion of said composition (C₄) of greater than or equal to 0% and less than or equal to 20%, and

(η

)—

a mass proportion of said alcohol of formula (VI) of greater than or equal to 0% and less than or equal to 2.5%.

4. The surfactant mixture (M₁) as defined in claim 1, wherein, in formula (III), G₃ represents a reducing sugar residue chosen from glucose, xylose and arabinose residues.

5. The surfactant mixture (M₁) as defined in claim 1, wherein, in formula (III), p represents a decimal number greater than or equal to 1.05 and less than or equal to 2.5.

6. The surfactant mixture (M₁) as defined in claim 1, wherein, in formulae (III) and (IV), R₃ represents a linear alkyl radical chosen from dodecyl, tetradecyl and hexyldecyl radicals.

7. The surfactant mixture (M₁) as defined in claim 1, wherein, in formula (V), G₄ represents a reducing sugar residue chosen from glucose, xylose and arabinose residues.

8. The surfactant mixture (M₁) as defined in claim 1, wherein, in formula (V), q represents a decimal number greater than or equal to 1.05 and less than or equal to 2.5.

9. The surfactant mixture (M₁) as defined in claim 1, wherein, in formulae (V) and (VI), R₄ represents a linear alkyl radical chosen from hexyl (n-C₆H₁₃—

) and heptyl (n-C₇H₁₅—

) radicals.

10. The surfactant mixture (M₁) as defined in claim 1, wherein said composition (C₂) comprises a mixture of compositions (C₃) and of compositions (C₄), said mixture comprising, per 100% of its mass:

(γ

₁)—

from 30% to 90% by mass of a composition (C₃) represented by formula (III) in which R₃ represents the dodecyl radical,

(γ

₂)—

from 9% to 40% by mass of a composition (C₃) represented by formula (III) in which R₃ represents the tetradecyl radical, and

(γ

₃)—

from 1% to 10% by mass of a composition (C₃) represented by formula (III) in which R₃ represents the hexadecyl radical,

(ε

₁)—

from 0% to 20% by mass of a composition (C₄) represented by formula (V) in which R₄ represents the heptyl radical (n-C₇H₁₅—

).

11. The surfactant mixture (M₁) as defined in claim 1, wherein the mass ratio:

Δ

=Mass of compound(s) of formula (I)/[Mass of composition (C₃)+Mass of composition (C₄)], is greater than or equal to 65/35 and less than or equal to 90/10.

12. A composition (C_A) comprising, per 100% by mass:

a)—

from 5% to 85% by mass of said (M₁) as defined in claim 1, and

b)—

from 15% to 95% by mass of water.

13. A composition (C_E) comprising, per 100% by mass:

a)—

from 0.1% to 25% by mass of said mixture (M₁) as defined in claim 1,

b)—

from 55% to 99.75% by mass of water,

c)—

from 0.05% to 10% by mass of at least one fluoro surfactant (FSA) chosen from anionic, cationic, nonionic and amphoteric fluoro surfactants.

d)—

from 0.1% to 10% by mass of at least one gelling agent and/or thickener (GA) chosen from polysaccharides consisting of monosaccharide derivatives, polysaccharides consisting solely of monosaccharides, cellulose and cellulose derivatives, starches and linear or branched or crosslinked polyelectrolytes.

14. The composition (C_E) as defined in claim 13, comprising, per 100% of its mass:

a)—

from 0.1% to 25% by mass of said mixture (M₁) in which;

the compound of formula (I) is chosen from monosodium N-cocoyl glutamate, monopotassium N-cocoyl glutamate, disodium N-cocoyl glutamate and dipotassium N-cocoyl glutamate,

the compound of formula (II) is chosen from sodium cocoate and potassium cocoate,

in formula (III), R₃ represents a linear or branched, saturated or unsaturated aliphatic radical including from 12 to 16 carbon atoms, G₃ represents a glucose or xylose residue and p represents a decimal number greater than or equal to 1.05 and less than or equal to 2.5;

in formula (IV), R₃ represents a linear or branched, saturated or unsaturated aliphatic radical including from 12 to 16 carbon atoms,

in formula (V), R₄ represents the n-heptyl (n-C₇H₁₅—

) radical, G₄ represents a glucose or xylose residue and q represents a decimal number greater than or equal to 1.05 and less than or equal to 2,

in formula (VI), R₄ represents the n-heptyl radical (n-C₇H₁₅—

),

b)—

from 55% to 99.75% by mass of water,

c)—

from 0.05% to 10% by mass of at least one fluoro surfactant (FSA) chosen from nonionic and amphoteric fluoro surfactants.

d)—

from 0.1% to 10% by mass of at least one gelling agent and/or thickener (GA) chosen from xanthan gum (G_X), acacia gum exudate (G_A), the mixture of xanthan gum (G_X) and of acacia gum exudate (G_A) in a mass ratio between the xanthan gum (G_X) and the acacia gum exudate (G_A) which is greater than or equal to 1/3 and less than or equal to 3/1.

15. A firefighting foam liquid comprising the composition (C_A) as defined in claim 12.

16. A process for extinguishing a fire, comprising:

at least one step A₁ of preparing a foam obtained by mixing a composition (C_E) as defined in claim 13 with a gas or a mixture of gases, chosen from air, nitrogen or carbon dioxide, followed by

at least one step A₂ of placing the foam prepared in step A₁ in contact with the surface that is on fire.

17. The process as claimed in claim 16, wherein step A₁ consists of a step A₁′

of diluting said composition (C_E) with water, in a (C_E)/water volume ratio of between 10/90 and 1/99, followed by a step A₁″

of mixing the dilute composition obtained on conclusion of step A₁′

with a gas or a mixture of gases chosen from air, nitrogen or carbon dioxide.

18. The surfactant mixture (M₁) as defined in claim 2, wherein said composition (C₂) comprises, per 100% of its mass:

(γ

)—

a mass proportion of said composition (C₃) of greater than or equal to 70% and less than 100%, and

(δ

)—

a mass proportion of said alcohol of formula (IV) of greater than or equal to 0% and less than or equal to 7.5%,

(ε

)—

a mass proportion of said composition (C₄) of greater than or equal to 0% and less than or equal to 20%, and

(η

)—

a mass proportion of said alcohol of formula (VI) of greater than or equal to 0% and less than or equal to 2.5%.

19. The surfactant mixture (M₁) as defined in claim 2, wherein, in formula (III), G₃ represents a reducing sugar residue chosen from glucose, xylose and arabinose residues.

20. The surfactant mixture (M₁) as defined in claim 3, wherein, in formula (III), G₃ represents a reducing sugar residue chosen from glucose, xylose and arabinose residues.