EP0214285A1

EP0214285A1 - Disinfectant and/or sanitizing cleaner compositions

Info

Publication number: EP0214285A1
Application number: EP86902143A
Authority: EP
Inventors: Arshad H. Malik
Original assignee: Tate and Lyle Ingredients Americas LLC
Current assignee: Primary Products Ingredients Americas LLC
Priority date: 1985-03-11
Filing date: 1986-03-10
Publication date: 1987-03-18
Also published as: CA1332687C; WO1986005509A1; USH269H

Abstract

Compositions liquides détergentes désinfectantes et/ou hygiénisantes sous forme de solutions aqueuses homogènes comprenant de l'eau, un composé germicide à base d'halogénure d'ammonium quaternaire et un agent tensio-actif glycoside, dans lesquelles le rapport pondéral entre le composé à base d'halogénure d'ammonium quaternaire et l'agent tensio-actif glycoside est au moins égal à 0,65:1. De telles compositions peuvent également comprendre éventuellement des ingrédients supplémentaires tels que des formeurs de détergents solubles dans l'eau, des solvants organiques miscibles dans l'eau, des hydrotropes, des parfums, des colorants, des épaississants, des agents de suspension de saletés, des désodorisants, de l'ammoniaque, des agents propulseurs aérosol et analogues.Liquid detergent disinfectant and / or sanitizing compositions in the form of homogeneous aqueous solutions comprising water, a germicidal quaternary ammonium halide compound and a glycoside surfactant, in which the weight ratio of the based compound quaternary ammonium halide and the glycoside surfactant is at least 0.65: 1. Such compositions may also optionally include additional ingredients such as water soluble detergent formers, water miscible organic solvents, hydrotropes, fragrances, dyes, thickeners, dirt suspending agents, deodorants, ammonia, aerosol propellants and the like.

Description

DISINFECTANT AND /OR SANITIZING CLEANER COMPOSITIONS

BACKGROUND OF THE I NVENTION The present invention pertains to aqueous disinfectant and/or sanitizing cleaning compositions containing a germicidal quaternary ammonium halide compound and a glycoside surfactant material and to the use of such compositions for disinfecting and/or sanitizing surfaces , articles , etc. contaminated with undesired bacterial , fungal and/or viral organisms.

Alkyl glycoside materials such as , for example , higher alkyl monoglycosides and higher al kyl polyglycosides are known materials; are known , at least in certain circumstances, to function as nonionic surfactants; and have been suggested as being suitable for use in certain specially formulated detergent composi¬ tions. See in this regard , for example, Published European Patent Application Numbers 007007 . ; 0070075; 0070076; and 0070077 , all of which published on January 19 , 1983 as well as Published European Patent Applica¬ tion Numbers 0075994; 0075995; and 0075996 which pub¬ lished on April 6 , 1983. See also Published European Patent Application Number 0105556 (published April 18 , 1984) which discloses liquid detergent compositions containing anionic surfactants , alkylpolyglycoside surfactants , selected nonionic surfactants and optionally also containing various other ingredients such as suds stabilizing amine oxide surfactants , detergent builder materials , and the like; Published European Patent Application Number 0106692 (published April 25 , 1984) which discloses stable heavy-duty l iquid detergent compositions containing a mixture of an ethoxylated fatty alcohol nonionic surfactant, an alkylpolyglycoside surfactant and a quaternary ammonium cationic surfactant in conjunction with a polyethylene glycol compound and a wide variety of optional conventional laundry detergent additives; and U . S . Patent 4,493 ,773 (issued January 15 , 1985) which discloses laundry detergent compositions which contain a conventional nonionic detergent surfactant, an alkylpolyglycoside detergent surfactant and a quaternary ammonium cationic fabric softening surfactant and which are said to be capable of including a wide variety of conventional laundry detergent addi¬ tives such as relatively small amounts of detergent builders , detergency cosurfactants such as trialkyi amine oxides , solvents such as ethanol , and the like.

A relatively specialized category of cleaning composition of interest to the art is one which is often referred to as a liquid detergent hard surface cleaning composition and which is specifically designed or for- mulated such that it can be applied to a soiled hard surface of interest (e. g . , glass , painted walls , woodwork , etc. ) and removed therefrom (for example as by wiping with a dry or damp cloth) without a subse¬ quent rinsing operation and without leaving a significant or unsightly residual film upon the surface after clean¬ ing . Thus , for example, in Published South African Patent Application No. 666 ,781 there is described a hard surface cleaner composition which comprises from 1 -10% of an anionic surfactant (e.g . , alkyl sulfate or alkyl aryl sulphonate) or a nonionic surfactant (e.g . , an ethylene oxide condensate of a fatty alcohol or of an alkyl phenol) and at least 20% of a 1 : 1 to 4: 1 ratio mixture of an alkali metal (or ammonium) borate and sodium carbonate and which , at a 1 % concentration in water , has a pH of at least 9.6. On the other hand , U . S . Patent 3 , 591 ,510 to

William Edward Zenk ( issued July 6 , 1971 ) describes certain liquid hard surface cleaning compositions consist¬ ing essential ly of from about 0.25 to 4% of certain selected anionic or zwitterionic detergents; from about 0.5 to about 6% of certain water soluble builder com¬ ponents; from about 1 to about 10% of certain selected organic solvents or solvent mixtures; and the balance being water.

In a recent journal article , namely "A Creasy Soil Hard Surface Cleaning Test: by Morris A. Johnson , JAOCS , Vol . 61 , No. 4, pages 810-813 (April 1984) , a series of commercial ly available solvent-based and w ter- based cleaners were tested for greasy soil removal effectiveness at various di lution ratios . Hard surface cleaning formulations are also discussed in "Formulation of Hard Surface Spray Cleaners" by R. E. Johnson and E. T . Clayton , detergents and specialties, June 1969 , pages 28-32 and 56. Formulations discussed in such article included (a) one which was composed of 1 weight percent of a non¬ ionic surfactant (linear alcohol ethoxylate) , 2.5 weight percent of anhydrous tetrapotassium pyrophosphate (builder) , 5 weight percent of ethylene glycol monobutyl ether (solvent) and the balance water and (b) another which was the same as the former except that the indicated nonionic surfactant was replaced with a corre¬ sponding amount of a linear alkylbenzenesulfonate anionic surfactant. In said article, it is noted that the aforementioned nonionic surfactant-based formulation exhibited slightly more filming (i.e. , being given a "moderate" film rating) than its corresponding anionic surfactant-based counter-part (which obtained a "moderate-good" film rating) .

In U . S . Patent 4,065 ,409 to John J . Flanagan (issued December 27 , 1977) , there are disclosed certain liquid detergent compositions which comprise aqueous solutions containing certain selected ethoxyiated nonionic surfactants in combination with certain amine oxide and quaternary ammonium halide surfactant components. Such compositions are described as being useful as hard surface detergents for cleaning surfaces such as painted wood , plaster or wal l board; tile; glass; metal ; linoleum and the like. The combination of the three surfactant ingredients indicated above is said to exhibit improved detergent properties relative to those exhibited by compositions containing any one or two of said ingredi¬ ents at equivalent concentrations.

In U . S . Patent 4 , 174,304 to John J . Flanagan (issued November 13 , 1979) , surfactant systems compris¬ ing , in certain specified proportions , a combination of certain ethoxyiated nonionic , amine oxide and quaternary ammonium halide surfactant components are described as being suitable, in combination with certain other spec¬ ified ingredients (such as antifoaming agents , water softening agents , viscosity reducing agents , builders and the like) in the preparation of a wide variety of commercially useful cleaning formulations such as , for example, degreasing cleaner compositions; wax and floor finish stripper compositions; glass and smooth surface cleaning and polishing compositions; and the like. The development, evaluation and Environmental

Protection Agency (EPA) labeling requirements for cleaner disinfectant compositions such as , for example, those containing quaternary ammonium halide compounds , nonionic detergents and detergent builder ingredients are discussed in an article entitled " Formulating Quaternary Cleaner Disinfectants to Meet EPA Require¬ ments" by Donald F. Greene and Alfonso N . Petrocci , SOAP/COSMETI CS/CHEMI CAL SPECIALTI ES , August 1980 , pages 33-35 and 61 .

SUMMARY OF THE COMPOSITIONS OF THE I NVENTION AND THE METHODS OF USI NG SAME It has now been discovered that glycoside surfactants can be suitably employed as the nonionic surfactant component in aqueous disinfectant or sanitizer cleaning compositions of the sort mentioned in the above-identified article by Greene and Petrocci . Additionally, it has also been discovered that glycoside surfactants are particularly effective in such composi¬ tions when ethylene diamine tetraacetic acid or alkali metal salts thereof are employed as a detergent builder ingredient. Accordingly , the present invention , in one aspect, is a l iquid disinfectant and/or sanitizer cleaning composition which , on a total composition weight basis , comprises :

a. from about 0. 01 to about 50 weight per¬ cent of a germicidal quaternary ammonium hal ide compound;

b . from about 0.01 to about 50 weight per- cent of a glycoside surfactant; and

c. from about 10 to about 99.98 weight percent water; and in which the weight ratio of the quaternary ammonium halide compound to the glycoside surfactant is at least about 0.65 : 1 (preferably at least about 0.8 : 1 ) . Such compositions may also optional ly include:

1 . from 0 to about 50 weight percent of a water soluble detergent builder;

2. from 0 to about 50 weight percent of a water miscible organic solvent; and

3. from 0 to a total of about 50 weight percent of one or more discretionary ingredients selected from the group consisting of hydrotropes , perfumes , dyes , colorants , thickeners , soil suspend- ing agents , deodorizers ; ammonia, antioxidants , and aerosol propellants. The disinfectant and/or sanitizer cleaning composition of the present invention can , if desired , suitably take the form of a dilutable liquid concentrate for t. e purposes of its convenient and economical initial manufacturing or formulation operations , transport or distribution , and/or marketing and can then be subse¬ quently diluted (e. g. , by the final distributor or the ultimate user) with water prior to its ultimate use in cleaner/sanitizer or cleaner/disinfectant end-use applica¬ tions.

In their aforementioned concentrated form , the compositions of the present invention will typically comprise , on a total concentrate composition weight basis: a. from about 10 to about 50 (preferably from about 10 to about 30) weight percent of the germicidal quaternary ammonium halide compound;

b. from about 10 to about 50 (preferably from about 10 to about 30) weight percent of the glycoside surfactant;

c. from about 10 to about 80 (preferably from about 20 to about 70 and more preferably from about 30 or 40 to about 50 or 60) weight percent water; and

d. optionally, up to about 50 ( preferably up to about 30) weight perceηt of a water soluble detergent builder; up to about 50 (preferably up to about 30) weight per¬ cent of a water miscible organic solvent; and/or up to a combined total of about 50

(preferably up to a combined total of about 30) weight percent of one or more of the above-noted discretionary ingre¬ dients. When the foregoing compositions are diluted to their ready-to-use form ( i .e. , for their intended clean¬ ing/disinfecting or cleaning/sanitizing purposes) , they will typically contain , on a total composition weight basis : a. from about 0.01 to about 10 (preferably from about 0.01 to about 5 , more pre¬ ferably from about 0.02 to about 3 and most preferably from about 0.02 to about 1 .5) weight percent of the germicidal quaternary ammonium halide compound;

b. from about 0.01 to about 10 (preferably from about 0.01 to about 5 , more pref¬ erably from about 0.02 to about 3 and most preferably from about 0.05 to about 1 .5) weight percent of the glycoside surfactant; and

c. from about 50 to about 99.98 (preferably from about 70 to about 99.98 , more preferably from about 75 to about 99.96 and most preferably from about 90 to about 99.93) weight percent water . The above described diluted compositions can , if desired , also optional ly include , on a total composition weight basis;

1 . from 0 to about 10 (preferably from 0 to about 5 and more preferably from 0 to about 3) weight percent of a water solu¬ ble detergent builder;

2. from 0 to about 10 (preferably from 0 to about 5 and more preferably from 0 to about 3) weight percent of a water miscible organic solvent; and

3. from 0 to about 10 (preferably from 0 to about 5 and more preferably from 0 to about 3) weight percent of one or more discretionary auxiliary ingredients selected from the group consisting of hydrotropes, perfumes, dyes, colorants, thickeners, soil suspending agents, deodorizers, ammonia, antioxidants and aerosol propellants. In one of its aspects, the present invention is also a method for cleaning and disinfecting and/or sanitizing a surface or an article contaminated with undesired bacterial, viral and/or fungal organisms. In said method, the aforementioned diluted compositions, containing at least a sanitizing or disinfecting amount of the germicidal quaternary ammonium halide compound, is contacted with said contaminated surface or article in a fashion so as to suitably sanitize or disinfect same. Typically, said compositions will contain, on a total composition weight basis, at least about 0.01 weight percent (preferably about 0.02 weight percent or more) of the germicidal quaternary ammonium halide compound for sanitizing purposes and at least about 0.05 (prefer¬ ably at least about 0.07) weight percent of sarrt for disinfectant end-use applications. In a particularly preferred embodiment of the present invention, the weight ratio of the germicidal quaternary ammonium halide compound to the glycoside surfactant will be at least about 1:1. Preferably the weight ratio of the germicidal quaternary ammonium halide compound to the glycoside surfactant will general¬ ly be within the range of from about 1:1 to about 10:1 (most preferably from about 1:1 to about 2:1). DETAILED DESCRIPTION OF THE INVENTION

Germicidal quaternary ammonium halide com- pounds suitable for use in the present invention include higher (e.g. C_g - C--) alkyl trimethyl ammonium halides; higher alkyl dimethyl benzyl ammonium halides; mixed higher alkyl (e.g., mixed C.., C._g, C._ and C._g alkyl) dimethyl benzyl ammonium halides; twin long-chain (e.g., C.___) dialkyl dimethyl ammonium halides such as didecyl dimethyl ammonium halides, dioctyl dimethyl ammonium halides, etc.; lower (e.g., , _g) alkylsubstituted benzyl quaternaries such as higher alkyl dimethyl ethylbenzyl ammonium halides; and the like. Glycoside surfactants suitable for use in the practice of the present invention include those of the formula:

R0(R'0)_y (Z)_χ I wherein R is a monovaient organic radical (e.g., a monovaient saturated aliphatic, unsaturated aliphatic or aromatic radical such as alkyl, hydroxyalkyl, alkenyl, hydroxyalkenyl, aryl, alkylaryl, hydroxyalkylaryl, arylalkyl, alkenylaryl, arylalkenyl, etc.) containing from about 6 to about 30 (preferably from about 8 to about 18 and more preferably from about 9 to about 13) carbon atoms; R¹ is a divalent hydrocarbon radical containing from 2 to about 4 carbon atoms such as ethylene, propylene or butylene (most preferably the unit (R'O) represents repeating units of ethylene oxide, propylene oxide and/or random or block combinations thereof); y is a number having an average value of from 0 to about 12; Z represents a moiety derived from a reducing saccharide containing 5 or 6 carbon atoms (most preferably a glucose unit) ; and x is a number having an average value of from 1 to about 10 (preferably from 1 to about 5 and most preferably from 1 to about 3) .

Glycoside surfactants of the sort mentioned above, and various preferred subgenera thereof, are fully discussed in U . S. Patent 4 ,483 ,779 to Llenado et al . (issued November 20 , 1984) , the discussion and description of which is hereby incorporated by refer¬ ence.

Glycoside surfactants suitable for use herein also include those of the formula I above in which one or more of the normally free (i . e. , unreacted) hydroxyl groups of the saccharide moiety, Z , have been alkoxylated (preferably , ethoxyiated or propoxylated) so as to attach one or more pendant alkoxy or poly (alkoxy) groups in place thereof. In such instance, the amount of alkylene oxide (e.g . , ethylene oxide, propylene oxide , etc. ) employed will general ly correspond to from about 1 to about 20 ( preferably from about 3 to about 10) moles thereof per mole of saccharide moiety.

In glycosides of the formula I above, the RO (R'O) group is generally bonded or attached to the number 1 carbon atom of the saccharide moiety , Z . Accordingly, the free hydroxyls available for alkoxylation are typically those in the number 2 , 3 , 4 and 6 positions in 6-carbon atom saccharides and those in the number 2 , 3 and 4 positions in 5-carbon atom saccharide species. Typically , the number 2 position hydroxyl in 5-carbon saccharides , and the number 2 and 6 position hydroxyls in 6-carbon saccharides , are substantially more reactive or susceptable to alkoxylation than those in the number 3 and 4 positions. Accordingly , alkoxylation will usually occur in the former locations in preference to the latter. Examples of the indicated alkoxylated glycoside materials , and of methodology suitable for the preparation of same, are described in United States patent application Serial No. 06/704,828 filed February 22 , 1985 by Roth et al . (a copy of which is included in the file of the present application) .

Glycoside surfactants of particular interest for use in the practice of the present invention preferably have a hydrophilic-lipophilic balance ( HLB ) in the range of from about 10 to about 18 and most preferably in the range of from about 12 to about 1 .

Water soluble detergent bui lders suitable for use herein include the various water soluble alkal i metal, ammonium or substituted ammonium phosphates , polyphosphates , phosphonates , polyphosphonates , carbonates , silicates , borates , polyhydroxysulfonates, polyacetates , carboxylates , and polycarboxyiates. Preferred are the alkali metal , especially sodium , salts of the above.

Specific examples of suitable water soluble inorganic phosphate builders are sodium and potassium tripolyphosphate, pyrophosphate , polymeric metaphos- phate having a degree of polymerization of from about 6 to 21 , and orthophosphate. Examples of polyphosphonate builders are the sodium and potassium salts of ethylene-1 , 1 -diphosphonic acid , the sodium and potassium salts of ethane-1 , 1 ,2-triphosphonic acid . Examples of suitable water soluble nonphospho- rus , inorganic builders for use herein include sodium and potassium carbonate , bicarbonate, sesquicarbonate, tetraborate decahydrate, and silicate having a molar ratio of SiO_ to alkali metal oxide of from about 0.5 to about 4.0 , preferably from about 1 .0 to about 2.4.

Water soluble, nonphosphorus organic builders useful herein also include the various alkali metal , ammonium and substituted ammonium polyacetates , carboxylates , polycarboxylates and polyhydroxy- sulfonates. Examples of polyacetate and polycarboxylate builders include the sodium , potassium , lithium, ammonium and substituted ammonium salts of ethylenediamine tetraacetic acid , nitri lotriacetic acid, oxydisuccinic acid , mellitic acid , benzene polycarboxylic acids , and citric acid.

Polycarboxylate builders suitable for use herein also include those set forth in U . S . Patent No. 3 , 308 , 067 , Diehl , issued March 7, 1967 incorporated herein by reference. Such materials include the water- soluble salts of homo- and copolymers of aliphatic carboxylic acids such as maleic acid , itaconic acid , mesaconic acid , fumaric acid , aconitic acid , citraconic acid and methylenemalonic acid .

Other builders include the carboxylated carbo¬ hydrates of U . S. Patent 3 ,723 ,322 Diehl incorporated herein by reference. Other useful builders herein include sodium and potassium carboxymethyloxymalonate, carboxymethy- loxysuccinate, cis-cyclohexanehexacarboxylate, cis-cyclo- pentanetetracarboxylate , phloroglucinol trisulfonate , water-soluble polyacrylates (having molecular weights of from about 2 , 000 to about 200 ,000 for example) , and the copolymers of maleic anhydride with vinyl methyl ether or ethylene.

Other suitable polycarboxylates for use herein include the polyacetal carboxylates described in U . S . Patent 4 ,144,226, issued March 13 , 1979 to Crutchfield et al and U . S. Patent 4, 146 , 495 , issued March 27 , 1979 to Crutchfield et al both incorporated herein by reference.

Organic builders of the type described in Publ ished European Patent Application EP-A-150 ,930 can also be suitably employed in the compositions of the present invention.

Preferred water soluble detergent builders for use herein include ethylene diamine tetraacetic acid or the alkal i metal salts thereof, tetrapotassium pyrophos- phate and sodium carbonate. Of these ethylene diamine tetraacetic acid and its alkali metal salts are especially preferred .

Water miscible organic solvents suitable for use in the compositions of the present invention include alkylene glycols and/or ethers thereof (e .g . , mono-lower alkyl , C. to C_g, ethers thereof) such as , for example , ethylene glycol mono-n-butyl ether , ethylene glycol monomethyl ether , ethylene glycol monoethyl ether , ethylene glycol mono-n-hexyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, isopropylene glycol monoethyl or monopropyl or monobutyl ether , etc; polyalkylene glycols and/or ethers thereof (e.g . mono-lower alkyl , C. to about C_fi , ethers thereof) such as , for example , diethylene glycol monoethyl or monopropyl or monobutyl ether , di- or tripropylene glycol monomethyl ether , di- or tripropylene glycol monoethyl ether , etc. ; t-butyl alcohol; tetra- hydrofurfuryl alcohol; N-methyl-2-pyrrolidone; and the like. As has been noted above, the compositions of the present invention can also, if desired in a given instance, suitably include one or more of the various known types of supplemental or auxiliary ingredients or additives such as , for example, hydrotropes (e. g . , water soluble salts of low molecular weight organic acids such as the sodium or potassium salts of toluene-, benzene-, xylene-, or cumene sulfonic acid , sodium or potassium sulfosuccinate, etc. ) ; perfumes; dyes or colorants; thickeners and /or soil suspensing agents (e.g . , carboxymethyl cel lulose , sodium polyacrylate, polyethylene glycols having molecular weights of from about 400 to about 100 ,000) ; deodorizers; ammonia; antioxidants; aerosol propellants; and the l ike. Typical¬ ly , such supplemental or auxiliary ingredients wil l be employed in relatively minor proportions.

In the preparation of the aqueous disinfectant and/or sanitizing cleaner compositions hereof, there is typically no particular criticality associated with the order of ingredient addition or the technique employed in manufacturing or formulating same and such can there¬ fore be accomplished in any fashion that may be con¬ venient or expedient under the circumstances to provide the subject composition of interest in the form of a stable, homogeneous aqueous solution thereof. As has been noted above, the compositions of the present invention , if desired , can suitably be in¬ itial ly formulated , transported , distributed and/or marketed in the form of a dilutable aqueous concentrate composition and , in such event, can be diluted to the ultimately desired , end-use active ingredient strength by the eventual end-user or by a distributor at the retail or wholesale level . Alternatively , the compositions hereof can also suitably be initial ly and directly manu¬ factured or formulated , transported , and marketed in their diluted , ready-to-use form as previously described in accordance with the present invention.

In evaluating the relative cleaning effective¬ ness of the subject cleaning/disinfecting and/or cleaning/sanitizing compositions , it is convenient to employ a Gardner Washability Apparatus (using a stan¬ dard soil ti le and at standard pressure and sponge stroke settings ) , to determine or quantify the cleaning efficiency of a given composition of interest. In determining the cleaning efficiency , reflectance values are determined using a Gardner Lab Scan Reflectometer for each of the following : a clean unsoiled panel , a soiled panel and a soiled panel following washing or scrubbing with a Gardner Washability Apparatus . Such reflectance values are then employed to calculate % cleaning efficiency according to the fol lowing formula:

% cl eaning effi ci ency = ^{Rw " Rs} x 100%

Ro - Rs wherein:

Rw = Reflectance of the washed tile or panel Rs = Reflectance of the soiled tile or panel and Ro = Reflectance of the clean, unsoiled tile or panel

The disinfecting and/or sanitizing effectiveness of the compositions of the present invention can be conveniently determined in accordance with the Association of Official Analytical Chemists (AOAC) Use

Dilution Test as described in the Official Method of

Analysis of the Association of Official Analytical

Chemists, 13th Edition, Washington D.C., 1980, page 58.

The present invention is further illustrated and understood by reference to the following examples thereof in which all parts and percentages are on a weight basis unless otherwise indicated.

EXAMPLES 1 and 2 In these examples , the aqueous disinfectant cleaner compositions described in Table I below are prepared and are evaluated as to their disinfecting and cleaning effectiveness in accordance with the test pro¬ cedures described above.

The formulations of Examples 1 and 2 each employ a glycoside surfactant and are within the scope of the present invention . Controls 1 and 2 employ a commercial ly available ethoxyiated nonlyphenol nonionic surfactant (9.5 mole ethylene oxide per mole of nonylphenol) in place of the glycoside surfactant and are presented and evaluated for comparative purposes.

The results of the cleaning efficiency and disinfectant effectiveness evaluations are summarized in Table I .

^'I ABLE I

Example 1 Control 1 Example 2 Control

4.5 4.5 4.5 4.5

3 Glycoside Surfactant 4.5 None 4.5 None

Conventiona Nonionic None 4.5 None 4.5 Surfactant

Na₂C0₃ 3.0 3.0 3.0 3.0

EDTA⁵ 2.85 2.85 None None

Tetra Potassium None None 2.0 2.0 Pyrophosphate

Water 85.15 85.15 86.0 86.0

TOTAL 100.0 100.0 100.0 100.0

% CLEANING EFFICIENCY¹ 24.9% 10.7% 7.3% 14.3

DISINFECTANT , Pass Pass Pass Pass EFFECTIVENESS⁰

Ingredients stated in parts by weight and on an active ingredient only basis.

2. Quaternary Ammonium Halide = 1:1 weight ratio mixture of (a) n- -aallkkyyll ({CC,._&. == 6600%%,, CC,_16A == 3300%, C,₉ = 5% and C,_o = 5%) dimethyl benzyl ammonium chloπαe and (br_-alkyl (C,₉ = 50%, C_1Δ = 30%_s

C.g = 17% and C,_g = 3%) dimethyl ethylbenzyl ammonium chloride.

3. Glycoside Surfactant = alkyl (degree of polymerization = 3

4. Conventional Nonionic Surfactant = Ethoxyiated nonylphenol (9.5 moles ethylene oxide per mole of nonylphenol).

5. EDTA = Tetrasodium salt of ethylene diamine tetraacetic acid.

6. Diluted 1 part formulation:64 parts water (703 ppm of quaternary ammonium halide) for disinfectant effectiveness testing and for cleaning effectiveness testing. While the present invention has been described and illustrated by reference to certain specific embodi- ments and examples thereof, such is not to be inter¬ preted as in any way limiting the scope of the instantly claimed invention.

Claims

WHAT IS CLAIMED IS:

1 . A liquid disinfectant and/or sanitizing cleaner composition which , on a total composition weight basis , comprises: a. from about 0.01 to about 50 weight percent of a germicidal quaternary ammonium halide compound;

b . from about 0.01 to about 50 weight percent of a glycoside surfactant; and

c. from about 10 to about 99.98 weight percent water; and in which the weight ratio of the germicidal quaternary ammonium halide com¬ pound to the glycoside surfactant is at least about 0. 65 : 1 .

2. The composition of claim 1 in the form of a dilutable liquid concentrate in which , on a total composition weight basis: a. the germicidal quaternary ammonium halide compound constitutes from about 10 to about 50 weight percent;

b. the glycoside surfactant constitutes from about 10 to about 50 weight percent; and

c. water constitutes from about 10 to about 80 weight percent.

3. The composition of claim 2 in which a water soluble detergent builder is present in an amount of from about 10 to about 50 weight percent on a total composition weight basis .

4. The composition of claim 1 in the form of a dilutable liquid concentrate in which , on a total composition weight basis: a. the germicidal quaternary ammonium halide compound constitutes from about 10 to about 30 weight percent;

b . the glycoside surfactant constitutes from about 10 to about 30; and

c. water constitutes from about 10 to about 80 weight percent.

5. The composition of claim 4 in which a water soluble detergent builder is present in an amount of from about 10 to about 30 weight percent on a total weight basis.

6. The composition of claim 1 in the form of a ready to use sanitizing and/or disinfectant cleaning composi¬ tion in which , on a total composition weight basis: a. the germicidal quaternary ammonium halide compound constitutes from about 0.01 to about 10 weight percent; b. the glycoside surfactant constitutes from about 0.01 to about 10 weight percent; and

• c. water constitutes from about 50 to about 99.98 weight percent.

7. The composition of claim 6 in which a water soluble detergent builder is included therein in an amount of from about 0.01 to about 10 weight percent on a total composition weight basis .

8. The composition of any one of claims 3 , 5 or 7 wherein the water soluble detergent builder is selected from the group consisting of ethylene diamine tetraacetic acid or alkali metal salts thereof, tetrapotassium pyrophosphate and sodium carbonate.

9. The composition of any one of claims 1 to 8 wherein the ratio of the germicidal quaternary ammonium hal ide compound to the glycoside surfactant is at least about 1 : 1 .

10. A method of sanitizing a hard surface which com¬ prises applying thereto a liquid sanitizing cleaning composition which on a total composition weight basis , comprises : a. from about 0.01 to about 10 weight percent of a germicidal quaternary ammonium halide compound; b. from about 0.01 to about 10 weight percent of a glycoside surfactant; and

c . from about 50 to about 99.98 weight percent water; and in which the weight ratio of the germicidal quaternary ammonium halide com¬ pound to the glycoside surfactant is at least about 0.65 : 1 .

1 1 . A method of disinfecting a hard surface which comprises applying thereto a l iquid disinfectant cleaning composition which , on a total composition weight basis , comprises : a. from about 0.05 to about 10 weight percent of a .germicidal quaternary ammonium hal ide compound ;

b . from about 0.01 to about 10 weight percent of a glycoside surfactant; and

c. from about 50 to about 99.94 weight percent water; and in which the weight ratio of the germicidal quaternary ammonium hal ide com¬ pound to the glycoside surfactant is at least about 0.65 : 1 .

12. The method of claim 1 0 or 1 1 wherein a water soluble detergent builder is employed in an amount of from about 0.01 to about 10 weight percent on a total composition weight basis and is selected from the group consisting of ethylene diamine tetraacetic acid or- alkal i metal salts thereof, tetrapotassium pyrophosphate and sodium carbonate.

13. The method of claim 12 wherein the water soluble detergent builder is ethylene diamine tetraacetic acid or an alkali- metal salt thereof.

14. The method of any one of claims 1 1 through 13 wherein the weight ratio of the germicidal quaternary ammonium halide compound to the glycoside surfactant is at least about 1 : 1 .