The way to increase the bactericidal effectiveness of the disinfectant cleaning composition

 

(57) Abstract:

Bactericidal effectiveness of water disinfection cleansing composition is increased by the inclusion of effective amounts of compounds of formula I: R - O-(-G)nin which R is an alkyl group having from 8 to 22 carbon atoms, G is sharedmem residue having 5 or 6 carbon atoms, and n is a number from 1 to 10, in an aqueous composition which contains a compound of the formula II: R2R3R4R5NX, in which R2is benzyl or C1-4-alkyl substituted benzyl group, and each of R3, R4and R5independently is an alkyl group having from 8 to 22 carbon atoms. 1 C.p. f-crystals, 2 tab.

The invention relates to a method of increasing the effectiveness of antibacterial cleansing compositions.

Study of microbiological activity Alkylglucoside showed that they exhibit a slight antimicrobial activity even at such high concentrations as 10000 hours in a million. In addition, combinations of Alkylglucoside with Quaternary ammonium compounds exhibit antibacterial activity, their use with Alkylglucoside surface-active substances is op perate. In U.S. patent N 4748158 described using Alkylglucoside as a possible means to enhance bactericidal activity the bactericidal active biguanide compounds, mainly bactericidal activity against gram-positive bacteria, antiseptic preparations. In U.S. patent N 4834903 presents a composition, which use the above oxyalkylene glycoside composition with a long chain in combination with one or more anionic, cationogenic or nonionic secondary surfactant components and/or one or more detergents modifying components.

It was found that the bactericidal efficiency of water disinfectant cleaning composition can be increased by incorporating an effective amount of the compounds of formula I.

R O/-G/n(I)

in which R is an alkyl group having from 8 to 22 carbon atoms, G is sharedmem residue having 5 or 6 carbon atoms, and n is a number from 1 to 10, in an aqueous composition which contains a compound of formula II:

R2R3R4R5NX (II)

in which R2is an alkyl group having from 1 to 22 carbon is>independently is an alkyl group having from 1 to 22 carbon atoms, and X is a halide.

For other examples, different from the working examples, all numbers expressing quantities of ingredients or reaction conditions used, should in all cases be understood as modified in the use of the term "about".

The compounds of formula I are commercial surfactants and are available, for example, from Henkel Corporation of Ambler, PA. 19002 under factory marks APGPlantarenTMor GlucoponTM. Examples of such surfactants include, but are not limited to:

1. GlucoponTM225-alkylpolyglycoside, in which the alkyl group contains 8 to 10 carbon atoms,

2. APGTM325 alkylpolyglycoside, in which the alkyl group contains 9 to 11 carbon atoms.

3. GlucoponTM625 alkylpolyglycoside, in which the alkyl group contains 12 to 16 carbon atoms.

4. APGTM360 alkylpolyglycoside essentially the same as the product 325 above, but with different average degrees of polymerization.

5. GlucoponTM600-alkylpolyglycoside, is essentially the same as ol>-16-alkylpolyglycoside.

7. PlantarenTM1300-C12-16-alkylpolyglycoside.

8. PlantarenTM1200-C12-16-alkylpolyglycoside.

9. GlucoponTM425-alkylpolyglycoside, in which the alkyl group contains from 8 to 16 carbon atoms.

Other examples include alkylpolyglycoside surface-active compositions, which consist of mixtures of compounds of the formula II in which Z represents a component derived from a reducing saccharide containing 5 or 6 carbon atoms; a is 0, b is a number from 1.8 to 3, and R4is an alkyl radical having from 8 to 20 carbon atoms. The composition differs in that it has an increased surface-active properties, the HLB (hydrophilic-liofilny balance) in the range from 10 to 16 and the distribution of glycosides not by Flory and includes a mixture of alkylhalogenide and the mixture alkylpolyglycoside having varying degrees of polymerization of 2 and higher, gradually decreasing quantities, the quantity by weight of polyglycoside having a degree of polymerization equal to 2, or mixtures thereof, with polyglycoside having a degree of polymerization of 3, prevails regarding the number of monoglycoside, and the above-mentioned composition is middle the initial reaction mixture of alkylhalogenide and alkylpolyglycoside after removal of the alcohol. This selection can be performed by molecular distillation, which usually leads to the destruction of about 70 to 95% by weight of alkylhalogenide. After removal of alkylhalogenide relative distribution of the various components, mono - or polyglycosides, the resulting product is changed, and the concentration of the product polyglycosides regarding monoglycoside, and the concentration of individual polyglycosides respect to all, i.e., fractions DP2 and DP3 relative to the sum of all fractions of DP increases.

Such compositions present in the joint consideration of the application N 07/810588 filed 12.19.91, the total content of which reference is made. Specialists in this field will find it advantageous to use a mixture of compounds of formula I to obtain maximize the effectiveness of a disinfectant cleaning composition. Preferred compounds of the formula are surface-active substance GlucoponTM425 and surfactant GlucoponTM625.

An effective amount of the compounds of formula I is any number, which increases the effectiveness of the compounds of formula II. An effective amount is typically in the range relationships of the compounds of formula is the property in accordance with the invention, are the Quaternary ammonium compounds of the formula R2R3R4R5NX, in which R2is an alkyl group having from 1 to 22 carbon atoms, benzyl or C1-4-alkyl substituted benzyl group, and each of R3, R4and R5independently is an alkyl group having from 1 to 22 carbon atoms, and X is a halide ion, for example chloride, bromide or yodel-ion. Examples of suitable Quaternary ammonium compounds include, but are not limited to didecyldimethylammoniumchloride, tetradecyltrimethylammonium, trimethylammoniumchloride tall oil, trimethylammoniumchloride soybean oil, trimethylammoniumchloride coconut oil, dioctyldimethylammonium, didodecyldimethylammonium, directrenderingenabled, tradiditional, etc. In disinfectant cleaning composition, the effectiveness of which can be increased by incorporating the compounds of formula I, can be used more than one connection Quaternary ammonium.

Preferred compounds of formula II are Barquat4250 Z and Barquat4280Z, which are mixtures of C12-18-alkyldimethylammonium cleansing compositions the effectiveness of which is increased by the inclusion of the compounds of formula I, usually from the relationship of the compounds of formula I to compound of formula II from 1 to 10 1 to 10. Disinfectant cleaning composition, the effectiveness of which can be increased by incorporating the compounds of formula I may also contain other compounds normally used in such compositions, such as modifying additives, optical brighteners, etc. One preferred variant of the invention is the way in which in the compound of the formula I R is C8-16is an alkyl group, G is a glucose residue, and n is equal to 1.6.

Another preferred variant of the present invention is a method in which in the compound of the formula I R is a C12-16is an alkyl group, G is a glucose residue and n is equal to 1.6. The following examples are intended to illustrate, but not limit the scope of the invention.

Example 1. Disinfectant cleaning compositions A, B and C having the following compositions were obtained by co-mixing of the ingredients. Then the compositions were tested for their ability to inhibit the growth of test organisms Staphylococcus aureus and Escherichia coli. A cleansing composition that does not contain Saadiq 9 ml aliquot with one aliquot, consisting of distilled water.

Using as diluent diluted cleaning composition, received 2% (V/V) solution Barquata4250Z. Prepared serial dilutions twice inclusive of 15.6 hours per million, again using as diluent diluted cleaning composition.

These dilution of the source material used for transferring 1 ml in 9 ml aliquots, which led to the release of a series of samples with a concentration of one-tenth of the initial dilutions twice.

The final concentrationsBarquata4250Z were 2000, 1000, 500, 250, 125, 62,5, 31,25 and 15.6 frequent. in a million. Each final dilution was added 0.1 ml of the original cultures of S. aureus and E. coli, which were incubated overnight at 35oC. After the weak mixing each mixture was left at rest for 10 minutes. The contour of each mixture strongly was filled inoculable on the surface of the plates with agar medium Zetheena. Then the cups were incubated at 35oC, after which the cups were sorted by growth on a scale from 0 (no growth) to 4 (strong growth). The results presented in table 2 show that samples B and C are more effective in the inhibition of growth of S. aureus, E. coli, than sample A, then the e sample contained a nonionic surfactant, but only samples B and C contain surface-active substance of the formula I. the composition of the samples A, B and C are presented in table 1.

1. The way to increase the bactericidal effectiveness of the disinfectant cleaning composition containing a Quaternary ammonium compound and a nonionic surface-active substance, characterized in that said composition as a nonionic surfactant add an effective amount of the compounds of formula I

R-O (G)n< / BR>
where R is alkyl (C8WITH16);

G glucose residue;

n 1,6,

moreover, the Quaternary ammonium compound is a mixture of (C12- C18) alkyldimethylbenzylammonium chloride and the mass ratio of this mixture to the compound of formula I is from 1 to 10 1 to 10.

2. The method according to p. 1, characterized in that the compound of the formula I R (C12WITH16)alkyl.

 

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