Composition and a process for the biocidal treatment of surfaces

• US 20030147826A1
• Filed: 01/10/2003
• Published: 08/07/2003
• Est. Priority Date: 06/08/2000
• Status: Abandoned Application

• Current Assignee: Mathieu Joanicot, Olivier Anthony
• Original Assignee: Mathieu Joanicot, Olivier Anthony
• Inventors: Anthony, Olivier, Joanicot, Mathieu
• Application Number:
  US10/340,441
• Publication Number:
  US 20030147826A1
• Time in Patent Office: Days
• US Class Current: 424/70.11
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/10 Macromolecular compounds
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: A01N 33/12 Quaternary ammonium compounds
• CPC Class Codes: A61K 2800/5426 cationic
• CPC Class Codes: A61K 2800/594 Mixtures of polymers
• CPC Class Codes: A61K 8/39 Derivatives containing from 2 to 10 oxyalkylene groups
• CPC Class Codes: A61K 8/411 Aromatic amines, i.e. where the amino group is directly linked to the aromatic nucleus
• CPC Class Codes: A61K 8/416 Quaternary ammonium compounds A61K8/35 takes precedence
• CPC Class Codes: A61K 8/737 Galactomannans, e.g. guar; Derivatives thereof
• CPC Class Codes: A61K 8/8147 Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
• CPC Class Codes: A61K 8/84 obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
• CPC Class Codes: A61K 8/90 Block copolymers A61K8/89 takes precedence
• CPC Class Codes: A61Q 17/005 Antimicrobial preparations

Abstract

Aqueous composition and method for the biocidal treatment of surfaces, the said composition comprising: (a) water, (b) a cationic surfactant having a biocidal effect and/or a cationic polymer having a biocidal effect, (c) a film-forming polymer forming a transparent film, (d) at least one water-soluble block copolymer comprising at least one anionic hydrophilic block and at least one nonionic hydrophilic block, and, (e) optionally, a nonionic surfactant. Use of the composition as a biocidal composition with a persistent effect for the treatment of surfaces, the biocidal effect on the surface to be treated being retained after several rinses.

Claims

1. Composition for the biocidal treatment of surfaces with a persistent effect, the said composition comprising:

(a) water, (b) a cationic surfactant having a biocidal effect, (c) a film-forming polymer forming a transparent film, and (d) at least one water-soluble block copolymer comprising at least one anionic hydrophilic block and at least one nonionic hydrophilic block.

2. Composition according to claim 1, characterized in that the composition comprises in addition (e) a nonionic surfactant.

3. Composition according to claim 1, characterized in that the cationic surfactant (b) having a biocidal effect is chosen from:

the quaternary monoammonium salts of formula;

R¹R²R³R⁴N⁺X⁻

where R¹ represents a benzyl group optionally substituted with a chlorine atom or a C₁-C₄ alkylbenzyl group, R² represents a C₈-C₂₄ alkyl group, R³ and R⁴, which are similar or different, represent a C₁-C₄ hydroxyalkyl or alkyl group, and X⁻

is a solubilizing anion such as halide (for example chloride, bromide or iodide), sulphate or methyl sulphate;

the products of formula;

R^1′

R^2′

R^3′

R^4′

N⁺X⁻

where

R^1′

and R^2′

, which are similar or different, represent a C₈-C₂₄ alkyl group,

R³ and R⁴, which are similar or different, represent a C₁-C₄ alkyl group, and

X⁻

is a solubilizing anion such as halide (for example chloride, bromide or iodide), sulphate or methyl sulphate; and

the products of formula;

R^1″

R^2″

R^3″

R^4″

N⁺X⁻

where

R¹ represents a C₈-C₂₄ alkyl group,

R<sup>2″

R3″

R4″</sup>

, which are similar or different, represent a C₁-C₄ alkyl group, and

X⁻

is a solubilizing anion such as halide (for example chloride, bromide or iodide), sulphate or methyl sulphate.

4. Composition according to any one of the preceding claims, characterized in that the whole or a portion of compound (b) is replaced with a cationic polymer with a biocidal effect.

5. Composition according to claim 4, characterized in that the said cationic polymer is obtained from the reaction:

of epichlorohydrin and of dimethylamine or of diethylamine,

of epichlorohydrin and of imidazole,

of 1,3-dichloro-2-propanol and of dimethylamine,

of 1,3-dichloro-2-propanol and of 1,3-bis(dimethylamino)-2-propanol,

of ethylene dichloride and of 1,3-bis(dimethylamino)-2-propanol, or

of bis(2-chloroethyl) ether and of N,N′

-bis(dimethylaminopropyl)urea or thiourea.

6. Composition according to claim 2, characterized in that the nonionic surfactant (e) is chosen from the condensates of alkylene oxide having from 1 to 4 carbon atoms with alcohols, polyols, alkylphenols, fatty acid esters, fatty acid amides and fatty amines;

the amine oxides, the sugar derivatives;

the long-chain tertiary phosphine oxides;

the dialkyl sulphoxides;

the block copolymers of polyoxyethylene and polyoxypropylene;

the polyalkoxylated esters of sorbitan;

the fatty esters of sorbitan;

the polyethylene oxides and amides of fatty acids modified so as to confer on them a hydrophobic character;

the polyoxyalkylenated alkylphenols in which the alkyl substituent is a C₆-C₁₂ and which contain from 5 to 25 oxyalkylene units;

the glucosamides, glucamides or glycerolamides;

the polyoxyalkylenated C₈-C₂₂ aliphatic alcohols containing from 1 to 25 units;

the amine oxides, the (C₈-C₂₂ alkoxy)ethyldihydroxyethylamine oxides;

the alkylpolyglycosides;

the C₈-C₂₀ fatty acid amides;

the ethoxylated fatty acids; and

the ethoxylated amines.

7. Composition according to any one of the preceding claims, characterized in that compound (c) is an anionic guar gum.

8. Composition according to any one of the preceding claims, characterized in that compound (c) is a carboxymethyl guar.

9. Composition according to any one of the preceding claims, characterized in that copolymer (d) has a number-average molecular mass preferably of between 2000 and 20,000, preferably of between 4000 and 10,000 g/mol.

10. Composition according to claim 9, characterized in that copolymer (d) is prepared by living or controlled polymerization.

11. Composition according to claim 1, characterized in that it comprises:

(a) 100 parts by weight of water,

(b) 0.05 to 5 parts by weight of a cationic surfactant having a biocidal effect,

(c) 0.02 to 1 part by weight of a film-forming polymer forming a transparent film, and

(d) 0.05 to 5 parts by weight of at least one water-soluble block copolymer comprising at least one anionic hydrophilic block and at least one nonionic hydrophilic block.

12. Composition according to claim 2, characterized in that it comprises:

(a) 100 parts by weight of water,

(b) 0.05 to 5 parts by weight of a cationic surfactant having a biocidal effect,

(c) 0.02 to 1 part by weight of a film-forming polymer forming a transparent film,

(d) 0.05 to 5 parts by weight of at least one water-soluble block copolymer comprising at least one anionic hydrophilic block and at least one nonionic hydrophilic block, and

(e) 1 to 20 parts by weight of a nonionic surfactant.

13. Composition according to claim 12, characterized in that it comprises:

(a) 100 parts by weight of water,

(b) 0.5 to 2 parts by weight of a cationic surfactant having a biocidal effect,

(c) 3 to 8 parts by weight of a nonionic surfactant,

(d) 0.05 to 0.3 parts by weight of a film-forming polymer forming a transparent film, and

(e) 0.5 to 2 parts by weight of at least one water-soluble block copolymer comprising at least one anionic hydrophilic block and at least one nonionic hydrophilic block.

14. Composition according to any one of the preceding claims, characterized in that the whole or a portion of compound (b) is replaced with a cationic polymer with a biocidal effect.

15. Method of biocidal treatment of skin, or keratinous, as well as of hard industrial, domestic or community surfaces, comprising the following steps:

a) a biocidal composition as defined in any one of claims 1 to 14 is applied to the said surfaces,

b) the applied composition is dried in order to remove the water, and

c) the said surfaces are washed at least once with water.

16. Method according to claim 15, characterized in that the said composition is diluted 1- to 100-fold, preferably 1- to 1000-fold before use.

17. Method according to either of claims 15 and 16, characterized in that the quantity of aqueous biocidal composition used corresponds to a deposition of biocidal agent (b) of 0.01 to 10 g, preferably of 0.1 to 1 g per m² of surface and to a deposition of copolymer (d) of 0.001 to 2 g, preferably of 0.01 to 0.5 g per m² of surface.

18. Method according to any one of claims 15 to 17, characterized in that the said biocidal composition is a body hygiene composition for the hair or the skin, such as shampoos, lotions, gels for the hair or the body, and liquid soaps for the face or the body.

19. Method according to any one of claims 1 to 18, characterized in that the water-soluble block copolymer d) has a number-average molecular mass Mn of between 2000 and 20,000, preferably of between 3000 and 10,000 g/mol.