BACKGROUND OF THE I NVENTION The present invention relates to aqueous liquid detergent compositions and to the use of same for the cleansing of soiled hard surfaces such as appliance cabinets or housings , walls , windows and the like.

Alky I glycoside materials such as , for example, higher alkyl monoglycosides and higher alkyl poly- glycosides 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 , al l of which published on January 19 , 1983 as well as Published European Patent Applica¬ tion Numbers 0075994; 0075995; and 0075996 which pub¬ lished on Apri l 6 , 1983. See also Publ ished European Patent Application Number 0105556 (published April 18 , 1 984) which discloses liquid detergent compositions containing anionic surfactants , alkypolyglycoside 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 liquid 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 potential conventional laundry detergent

additives; and U. S. Patent- ,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 trialkyl 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 residual film upon the surface after cleaning. 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 con- densate 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 l iquid hard surface cleaning compositions consist¬ ing essential ly of from about 0.25 to 4% of certain select¬ ed anionic or zwitterionic detergents; from about 0.5 to about 6% of certain water soluble builder components; 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 Greasy Soil Hard Surface Cleaning *Test" by Morris A. Johnson, JAOCS, Vol. 61, No.. -4<, ^' pages 810-813 (April 1984), ε series of cor ier-cially/,- ayaϊisbie solvent-based and water- based cleaners were tested for greasy soil removal effectiveness at various dilution ^" ratios.

Hare surface cleaning formulations are also discussed in "Formulation of Hard Surface Spray Clean¬ ers" by R. E Johnson and E. T. Clayton, detergents arid specialties, June' 1969, p~-ges 28-32 and 56. rorrru - nations ^•*, :s-cus3ed in such artøcie included (a) one which was (. ^" .p-i ossd of 1 weight percent of a nonionic surfa an (i.i ear aicohoi' thoxylate) , 2.5 weight percent of όnhyd ^' rous tetrapotarslu pyrophosphate (t iilder), 5 weight percent cf ethyl ne glycol monobutyi ether (sol¬ vent) and the balance water and (b) another v. ich was the as the former except that the indicated nonionic su- ^' *•--• ^■■ -rut was replaced with a corresponding ■ r.ount of a !lt..- ^* *r alkylbenzfcncrsuh ^' onate ar.-onic sur:?-..: _f -_ιit. In said article, it is noted that the aforemention d nonionic surf.-:. ?.nt-based formulation exhibited sϋoi- ^: iy . more fuming (i.e., being given a ^* ' moderate" film rating) than its corresponding anionic surfactant-based counter-part (which obtained a "moder&te-good" film rating). in U. S. Patent 4,055,409 to John J. Flanagan (issued December 27, 1977), there are disclosed certain liquid detergent compositions which comprise aqueous solutions containing certain selected ethoxylaied nonionic surfactants in combination with certain amine oxide and quaternary ammonium halide surfactant components . Such compositions are described as being useful as hard

AL

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 ethoxylated 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 commercial ly 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.

SUMMARY OF THE COMPOSITION AND METHOD OF THE

I NVENTION It has now been discovered that the use of a glycoside surfactant in conjunction with an amine oxide surfactant, a quaternary ammonium halide surfactant and a water soluble detergent builder provides aqueous liquid detergent compositions which are particularly well suited for use in hard surface cleaning applications . Accord¬ ingly , the present invention is , in one of its aspects , a liquid detergent composition which comprises , on a total weight basis: a . from about 0.05 to about 50 weight percent of a glycoside surfactant; b. from about " 0.025 to about 50 weight percent of an amine oxide surfactant, said amine oxide surfactant being employed in an amount corresponding to at least about 0.5 part thereof by weight per part by weight of said glycoside surfactant; c from about 0.005 to about 25 weight percent of a quaternary ammonium halide surfactant, said quaternary ammonium halide surfactant being employed in an amount corresponding to less than about 0.5 part thereof by weight per part by weight of said glycoside surfactant;

d . from about 0. 1 to about 50 weight percent of a water soluble detergent builder; and e. from about 10 to about 99.8 weight per¬ cent water. The compositions of the present invention generally provide enhanced foaming capability and greater foam stability than is normally provided by conventional nonionic surfactant compositions.

The aforementioned detergent composition can , if desired , suitably take the form of a dilutable l iquid concentrate in order to facilitate the convenient and economical initial preparation or formulation thereof, as well as for the purposes of economical transport, or distribution and/or marketing operations , and can then be subsequently di luted (e . g . , by the final distributor or the ultimate user) with water prior to its ultimate use for hard surface cleaning purposes . I n their aforementioned concentrated form , the compositions of the present invention wil l typical ly comprise , on a total concentrate composition weight basis :

a . from about 5 to about 50 (preferably from about 5 to about 30) weight percent of the aforementioned glycoside surfactant; b. from about 2.5 to about 50 ( preferably from about 2.5 to about 30) weight percent of the amine oxide surfactant; c. from about 0.5 to about 25 (preferably from about 0.5 to about 20 and most preferably about 0.5 to about 15) weight percent of the quaternary ammonium halide surfactant; d. from about 10 to about 50 (preferably from about 10 to about 30) weight percent of the water soluble detergent builder; and e. from about 10 to about 80 (preferably from about 10 to about 65 and most preferably from about 15 or 20 to about 50 or 60) weight percent water.

The dilutable concentrate compositions of the present invention are particularly beneficial in that they generally exhibit lower viscosity at a given solids con¬ tent than do comparable compositions prepared using other known nonionic surfactants.

The compositions of the present invention in their diluted for ultimate hard surface cleaning purpose form wil l typically comprise, on a total diluted composition weight basis : a . from about 0. 05 to about 5 (preferably from about 1 to about 5 and more preferably from about 1 to about 3) weight percent of the glycoside surfactant; b . from about 0.025 to about 5 ( preferably from about 0.5 to about 5 and more preferably from about 0.5 to about 2.5) weight percent of the amine oxide surfactant; c. from about 0.005 to about 2.5 ( preferably from about 0.1 to about 2.5 and more preferably from about 0. 1 to about 1 .5) weight percent of the quaternary ammonium surfactant; d . from about 0. 1 to about 10 (preferably from about 1 to about 10) weight percent of the water soluble detergent builder; and e. from about 50 to about 99.8 ( preferably from about 50 to about 97.4) weight percent water.

In another of its broad aspects, the present invention is also represented -by a method for cleaning a soiled hard surface by the application thereto and the subsequent removal therefrom of an effective amount of the hard surface cleaning composition of the instant invention in its above-described diluted and ready-to-use form. In an especially preferred embodiment of the present invention , the aforementioned amine oxide surfactant is employed- in amount corresponding to from about 0.5 to about 0.8 (most preferably from about 0.5 to about 0.7) parts by weight of same per one part by weight of the glycoside surfactant and the indicated quaternary ammonium halide surfactant is employed in an amount ranging from about 0.1 to about 0.4 (preferably from about 0.15 to about 0.3) parts by weight for each part by weight of glycoside surfactant employed therein .

DETA1 LED DESCRI PTION OF THE I NVENTION

Glycoside surfactants suitable for use in the practice of the present invention include those of the formula: 0(R '0) _y (Z) _χ I wherein R is a monovalent organic radical (e.g . , a monovalent saturated aliphatic, unsaturated aliphatic or aromatic radical such as alkyl , hydroxyalkyl , alkenyl , hydroxyalkenyl , aryl , alkylaryl , hydroxyalkylaryl , arylalkyi , alkenylaryl , arylalkenyl , etc. ) containing from about 6 to about 30 ( preferably from about 8 to about 1 8 and more preferably from about 9 to about 13) carbon atoms; R' 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 numbed having an average value of from 0 to about 12; Z represents a moiety derived from a reducing saccharide containing 5 o 6 carbon atoms (most pref¬ erably a glucose unit) ; and x is a number having an average value of from 1 to about 10 (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) , this discussion and description of which is hereby incorporated by refer¬ ence.

Nonionic 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 pref¬ erably in the range of from about 12 to . about 14.

Amine oxide surfactants suitable for use herein include: ( 1 ) Alkyl di ( lower al kyl ) amine oxides in which the alkyl group has about 10-20 , and preferably 12-16 carbon atoms , and can be straight or branched chain , sat¬ urated or unsaturated . The lower alkyl groups include between 1 and 7 carbon atoms . Examples of such tertiary amine oxides useful in the invention include lauryl dimethyl amine oxide, myristyl dimethyl amine oxide, and those in which the alkyl group is a mixture of different chain lengths , such as lauryl / myristyl dimethyl amine oxide, dimethyl cocoamine oxide, dimethyl (hydrogenated tallow) amine oxide, and myristyl /palmityl dimethyl amine oxide.

(2 ) Alkyl dif hydroxy lower alkyl ) amine oxides in which the alkyl group has about

10-20 , and preferably 12-16 carbon atoms , and can be straight or branched chain , saturated or unsaturated . Examples are bis(2-hydroxyethyl) cocoamine oxide; bis(2-hydroxyethyl ) tal lowamine oxide;

and bis(2-hydroxyethyl) stearyla ine oxide. (3) Alkylamidopropyl di(lower alkyl) amine oxides in which the alkyl group has about 10-20, and preferably 12-16 carbon atoms, and can be straight or branched chain, saturated or unsaturated. Examples are cocoamidopropyl dimethyl amine oxide and tallowamidopropyl dimethyl amine oxide. (4) Alkylmorpholine oxides in which the alkyl group has about 10-20, and preferably 12-16 carbon atoms, and can be straight or branched chain, saturated or unsat¬ urated. Mixtures of any two or more of the amine oxide surfactants identified above may also be used.

Quaternary ammonium halide surfactants suit- able for use herein include those of the formula:

wherein R. , R«, R_, R„ and X can be as hereinafter described. Suitable quaternary ammonium halide surfactants thus include:

(1) Compounds wherein R.. and R- are lower

(i.e., C.-C ₇ ) alkyl, and preferably methyl groups; R, is a benzyl group or a benzyl group substituted with an alkyl group having about 1-18 carbon atoms or an alkyl group having about 8-20, and preferably 8-18, carbon atoms, R„ is a

benzyl group or a benzyl group sub¬ stituted with an alkyl group having about 5 1-18 carbon atoms or an alkyl group having about 8-20, and preferably 8-18, carbon atoms; and X is a halogen, preferably chlorine. Examples of suitable quaternary ammonium halide surfactants

10 include dioctyl dimethyl ammonium chloride, octyl decyl dimethyl ammonium chloride, didecyl dimethyl ammonium chloride, (C-.-C-g) n-a!kyl dimethyl benzyl ammonium chloride, (C---C-.)

15 n-alkyl dimethyl ethylbenzyl ammonium chloride, and dimethyl (di-C ₈ _ alkyl) ammonium chloride. In a particularly preferred embodiment of the invention the quaternary ammonium halide surfactant

20 used is a mixture of about (34% by weight

C-- and 16% by weight C.„) n-alkyl dimethyl ethylbenzyl ammonium chloride, and about (30% by weight C ₁₄ , 15% by weight C^g, 2 1/2% by weight C ₁₂ and 2

25 1/2% by weight C _1g ) n-alkyl dimethyl benzyl ammonium chloride. (2) Compounds wherein R., , R_ and R ₃ are lower (i.e., C.-C-) alkyl, and preferably methyl groups; R„ is an alkyl group, an

30 alkyl-substituted benzyl group, or a phenyl-substituted alkyl group having about 8-20, and preferably 8-18 carbon

atoms; and X is a halogen, preferably chlorine. (3) Compounds wherein R. is an alkyl group, alkyl-substituted benzyl group, or a phenyl-substituted alkyl group having about 10-20, and preferably 12-16 carbon atoms; R- is lower (i.e., C.-C ₇ ) alkyl and preferably a methyl group; R, is t— CH ₂ CH ₂ O— ] _χ H and R _μ is

[— CH ₂ CH ₂ O~] H, with the sum of x + y varying between, about 2 and 50.

Water soluble detergent builders suitable for use herein include the various water soluble alkali metal, ammonium or substituted ajnmonium phosphates, polyphosphates, phosphonates, polyphosphonates, carbonates, silicates, borates, polyhydroxysulfonates, polyacetates, carboxylates, and polycarboxylates. 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- phates 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 are the sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylenediamine tetraacetic acid _r nitrilotriacetic 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 are sodium and potassium carboxymethyloxymalonate, carboxymethyloxy- succinate, cis-cyclohexanehexaca boxylate, 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 are 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. The indicated water soluble builders are pref¬ erably employed in the present invention in an amount corresponding to at least about 0.5 (more preferably at least about 1 ) part thereof by weight per part of combined weight of the indicated glycoside, amine oxide and quaternary ammonium halide surfactants.

The liquid hard surface cleaning compositions of the present invention can, if desired in a given instance, optionally include, typically in relatively minor proportions, one or more of the various known types of supplemental ingredients or additives such as, for ex¬ ample, 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 cellulose, sodium polyacrylate, polyethylene glycols having molecu¬ lar weights of from about 400 to about 100,000); deodorizers; ammonia; germicides; antioxidants; aerosol propellants; and the like.

In the preparation of the liquid hard surface cleaning compositions of the present invention, there is generally no particular criticality associated with the order of ingredient addition or the technique employed in manufacturing or formulating same and such can

therefore be accomplished in any fashion that may be convenient 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 hard surface cleaning compositions of the present invention, if desired , can suitably be initially formulated , trans- ported , 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. Alter- natively, the liquid hard surface cleaning compositions hereof can also suitably be initially and directly man¬ ufactured or formulated , transported , marketed and used or consumed in pre-diluted, ready-to-use form as pre¬ viously described in accordance with the present in- vention.

The above-described hard surface cleaning compositions provide efficient and effective cleaning of soiled hard surfaces such as , for example, glass , paint¬ ed, walls , stove tops , woodwork, ceramic tile, appliance housings, and the like.

In evaluating the relative cleaning effective¬ ness of the subject cleaning compositions , it is conven¬ ient to employ a Gardner Washability Apparatus, using a standard soil tile and at standard pressure and sponge stroke settings , to determine or quantify the cleaning efficiency of a given cleaning 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 Gardner Washability

Apparatus scrubbing . Such reflectance values are then employed to calculate % cleaning efficiency according to the following formula:

% cleaning effi ciency = ^{Rw " Rs} x 100%

Ro - Rs wherei n :

Rw - Refl ectance of the washed ti l e or panel Rs *= Refl ectance of the soi l ed ti l e or panel and Ro = Refl ectance of the cl ean , unsoi l ed ti le or panel

The cleaning capability of the subject composi¬ tions can also be evaluated or characterized in terms their ability to emulsify oily substances such as used motor oil , olive oil , and the like. Evaluation of the oil emulsifying capability of a given cleaning composition can be conveniently accomplished by di luting the cleaning composition of interest (in its pre-diluted , ready-to-use form) with 20 parts by weight of water for each part by weight of said cleaning composition ; by placing about 4 fluid ounces of the resulting di luted composition into a container along with about 1 gram of the oily substance of interest; and by stirring the resulting mixture by hand for about 30 seconds . Upon completion of the foregoing procedure, the resulting agitated mixture is rated as to the emulsifying capability of the cleaning composition employed therein according to the following rating schedule:

4 = stable emulsion;

3 = partially stable emlusion;

2 = slight emulsion; and

1 = no emulsion .

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

EXAMPLE In this example , - a hard surface cleaning composition is prepared in accordance with the present invention and corresponding to the following recipe:

TABLE I

Amount Ingredient (Parts by weight)

Glycoside Surfactant ₂ 1.69

Amine Oxide Surfactant , 0.95

Quaternary Ammonium Hal.ide Surfactant 0.38

Water Soluble Detergent Builder 3.84

Water 93.14

Total 100.00

L Glycoside surfactant in accordance with Formula I above in which R is a Ci -C- ^& ^ group, y is zero, Z is a glucose unit, and x has an average value of about 3.0.

2. Amine Oxide Surfactant = Lauryl dimethyl amine oxide.

3. Quaternary Ammonium Halide Surfactant = Mixture of: a) Al kyl (C, . = 50%, C, - = 40%, C. g- 10%) dimethy l benzyl ammoni um chl ori de = 20.0% b) Octyl decyl dimethyl ammoni um chl ori de = 15.0% c) Dioctyl dimethyl ammoni um chl ori de = 7.5% d) Di decyl dimethyl ammoni um chl ori de = 7.5% e) Water = 50.0%

4. Water Soluble Builder is a 2:1 weight ratio mixture of sodiu metasilicate (δl-LO) and sodium tripolyphosphate.

Several alternative compositions (not in accor¬ dance with the present invention) are also prepared for comparative purposes. (See Table I I below. )

The resulting compositions are evaluated as to their cleaning efficiency and/or their emulsifying ability relative to used motor oil and /or olive oil in accordance with the procedures described hereinabove. The results of such evaluations are summarized in Table I I below.

<

TABLE II

Example Control Control Control Control Control Control Control

Ingredients 1 1 2 3 4 5 6 7 Glycoside Surfactant 1.69 1.69 1.69 -0- -0- 3.02 -0- -0-

Amine Oxide Surfactant 0.95 1 .33 -0- 2.64 0.95 -0- 3.02 -0-

Quaternary Ammonium _? 0.38 -0- 1.33 0.38 2.07 -0- -0- 3.02 Halide Surfactant

Water Soluble Detergent 3.84 3.84 3.84 3.84 3.84 3.84 3.84 3.84 Builder*

Water 93.14 93. 14 93.14 93. 14 93.14 93. 14 93.14 93. 14

Emulsifying Performance Used Crankcase Oil 4 3 Olive Oil 4 4 N.D, N.D. N.D. N.D. N.D.

% Cleaning Efficiency 61.4% 59.8% N.D. 58.9% N.D. N.D. 58% N.D.

1-4. See footnotes 1 through 4 in Table I above.

5. N.D. = No Data.

6. Compositions identified in Table II are diluted 1 part composition to 20 parts water prior to oil emulsification and cleaning efficiency testing.

As can be seen from the results in Table I I , the composition of Example 1 - exhibits better used motor oil emulsifying capability than does any of the various comparative compositions.

For further comparative purposes , oil emulsifying capability testing and/or cleaning efficiency testing as set forth above is conducted on an "aqueous ethylene glycol monobutyl ether-based detergent formu¬ lation corresponding to that indicated in Table I I I below ( Control 8) and on two commercially available, national brand-name liquid hard surface cleaning products (Controls 9 and 10) .

TABLE I II

CONTROL 8 COMPOSITION

Ingredient Amount (wei ght %)

Sodium carbonate 0.5%

Sodium tri polyphosphate 0.2%

Ethyl ene glycol monobutyl ether 5.0%

Ethoxyl ated octyl phenol 0.5%

( 1 mol e octyl phenol : 10 mol es ethyl ene oxide)

Water _, 93.8%

TOTAL 100.0%

The cleaning efficiency of the Control 8 formu¬ lation is 54.1 %.

The Control 9 commercial cleaning composition also has a cleaning efficiency of 54.1 % and exhibits a used crankcase oil emulsification rating of 1 and an olive oil emulsification rating of 2.5.

The Control 10 commercial cleaning composition achieves a cleaning efficiency -of 55.6%; a used crankcase oil emulsification rating of 2; and an olive oil emulsification rating of 4.

From the foregoing , it is seen that the liquid detergent composition of Example 1 offers superior cleaning performance relative to that provided by the compositions of Controls 8 , 9 and 10.

While the present invention has been described and i llustrated by reference to certain specific embodi¬ ments and examples thereof , such is not to be interpret¬ ed as in any way l imiting the scope of the instantly claimed invention .