GB2474260A - Hard surface cleaning composition - Google Patents

Abstract

A low-streaking hard surface cleaning composition comprising an amine oxide surfactant, a monohydric C1-C3 primary alcohol, a phenyl-containing glycol ether organic solvent, a non-phenyl-containing glycol ether organic solvent, an alkanolamine, a silicone based antifoaming constituent, a hydrotrope and water. The preferred amine oxide surfactant is lauryl dimethyl amine oxide and the preferred monohydric C1-C3 primary alcohol is isopropanol. The preferred phenyl-containing glycol ether solvent is propylene glycol phenyl ether and the preferred non-phenyl-containing glycol ether solvent is propylene glycol n-butyl ether. The preferred alkanolamine is monoethanolamine and the preferred hydrotrope is sodium cumene sulfonate. The preferred silicone based antifoaming constituent is apolydimethylsiloxane. Further conventional additives may be present which exhibit good cleaning properties against dirt and stains, particularly greasy soils and stains and which concurrently exhibit reduced streaking and/or reduced residues of such cleaned surfaces.

Description

KARP SURKACE CLE.tNINC Co.IPostnoN The present i vention relates to unproved hard surface cleaning compositions, More particularly the present invention is directed to hard surface cleaning compositions Lean ring low streaking. effective against greasy soils, comprising amine oxide surfactant arid phenyl containing glycoi ether solvents, hard surface cleaning compositions are commcrcallv important products and enjoy a wide field of use. and are known in assisting in the removal of dirt and grime from su rthces, especially those characterized as useful for cleaning thard surfaces". Hard surluices include those which arc frequently encountered in lavatories, fbr example lavatory fixtures such as toilets, shower stalls, bathtubs, hidets, sinks, etc., as well as countcrtops. walls, floors, etc. In such lavatory environments two types of commonly encountered stains in lavatories include bhard water" stains, "soap scum" stains as well as ru.st stains". Such hard surfrices, and such stains, may also be found in. different environments as well, including kitchens, hospitals, etc. I-lard water stains are mineral stains caused by' the deposition of salts, such as calcium or magnesium salts which ai.e frequently presen.t in hard water which is commonly encountered, Soap scum stains are residues of fatty acid soaps, such as soaps which arc based on alkaline salts of low fatty acids. These fatty acids are known to precipitate in hard water due to the presence of metal salts therein leaving an undesirable residue upon such surfaces. Still further stains, typically referred to as greasy stains, are surface residues which generally comprise hydrophobic materials often with further materials which leave unsightly residues on surfaces.

Although the prior art provtdes a variety of compositions which provide effective cleaning of one or more, typically all of the Ibrcgoing classes of stains, there is still an.

urgent need in the art to pivide improved hard surface cleaning compositions which are effective in the treatment of many types of stains typically encountered on hard surfaces, particularly in a home or commercial environment, especially in or around kitchens.

bathrooms where cleanliness is of special importance. It is to such needs that the composltions of the present invention are particularly directed.

Broadly stated, the compositions of the present invention are directed to low streaking hard surfitce cleaning compositions which arc particularly effective in the S removal of stains from hard surthces especially glassy or polished hard surinces, e.g..

reflective han] surthees.

in a hirther aspect th.e present invention also provides methods for the production of such low streaking hard. surface cleaning compositions, as veil as methods for their use.

The hard surface cleaning compositIons of the present invention necessarily comprises: about 0.01 -1.5%wr. of one or more amine oxide surfhctants; about 0.5 -6%wt. of a C1-C1 inonohydric primary alcohol, about 0.05 -Q85%wt. of a phenvl containing glyeoi ether solvent: 0 to about 5%wt. of's non-phenyl containing glveol ether orgamc solvent: about 0.1 5%wt. of an alkanolamine; 0 to about 0.005%wt.. prelhrably about 0.0001 -0,002%wt. of a silicone based antrioainng constituent; 0 to about 05%wt. of a hydrotrope: at least 90%wt. water; and optinnally, one or more inrther conventional additives in a cumulative arriount of not in excess of about i0%wt. of the total of the composition of which they thnn a part.

The compositions of the present invention exhibit good cleaning properties againsi dirt and stains commonly fbund in household, commercial and residential settings, particularly in kitchen settings wherein greasy soils and stains are frequently encountered, and concurrently exhibit reduced streaking and/or reduced residues of such cleaned surfaces, By "essentially free" is to he understood that less than 0.05%wt. of an identified constituent is present in the inventive compositions, but preferably, such identified constituents are absent or excluded from the inventive compositions.

The compositions of the invention necessarily include at least one amine oxide surtactan.t such as: alkyl di(C-C7) amine oxides in which the alkyl group has about 10-20, and preferably 12-lb carbon atoms, and can he straight or branched chain, saturated or S unsaturated. Examples ol such compounds include laurvl dimethyl amine oxide, myristyl dimeihl amine oxide, and those in which. the alkyl group is a mixture of different at.nine oxide, dimethyl cocoanhinc oxide, dimethyl (hydrogenated tallow) amine oxide, and myristviipalnutyl dimethyl amine oxide: ailcvl di(hydroxy C-C'7) amine oxides in which the alkyl group has about 10-20, 1 0 and preferably I 2-1 6 carbon atoms, and can be straight or branched chain, saturated or unsaturated. Examples of such compounds include bisç .-hydroxyethyl) cocoannue ox ide, bis(2-hydroxyethyl) tallowaniine oxide; and bis(2-hydroxyethvl) stearylaminc oxide; alkylainidopropvl di(C-Cy) amine oxides in which the alkyl group has about 10- 20. and preferably 12-16 carbon atoms, and can he straight or branched chain, saturated or unsaturated. Examples of such compounds include cocoamidopropyl ci iniethyl amine oxide anti tallowaniidopropyl dimethyl amine oxide', and 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 unsaturated, Particularly preferred are alkyl di(Ci-C2) amine oxides in which the alkyl group has about 10-14, and preferably has i 2 carbon atoms. which are preferably saturated.

Especially pretèrred is lauryl dimethvi amine oxide which in iireferred embodiments is present to the exclusion of other amine oxides. The amine oxide surfac.tant(s) present comprise about 0,01 --i.5%wt.. preferably about 0.1 --07%wt and especially preferably about 0.3 0.55%wt of the compositions of the present invention..

The inventive compositions are preferably essentially free of amonie. and cationic surfactants. and in especially preferred embodiments the inventive compositions arc essentially free of' further anionic, cadonic, nonionic. anipho teric and zwitterionic surlhctants other than the amine oxide surfactants identified above. i'bus in particularly preferred embodiments amine oxide surfactants are the sole species of surfactants present in the compositions.

The compositions of the invention comprises at least one C-C3 monohydric alcohols, viz, methanoL ethanol, n-propanol, and isopropanol, One or more such C-C monohydne alcohols may be used in the oiyanic solvent systet. but preferably the inventive compositions compdse a C1-C3.monohydric. alcohol, and especially preferably 3 the C -C3 nionohydric alcohols is isopropanol which has been Thund to he particularly effec iive. The C 1-C3 nonohydnc alcohols comprise about 0.5 -6%wt., prefbrahly about 1.5 -5%wt and especially preferably about 2 -4%wt of the inventive compositions, hr especially preferred embodiments isopropanol is the sole C -C3 m.o.nohydnc alcohol resen L The compositions o [the invention add mon.ally comprise one or more phenyl containing glycol ether solvents including those which may be represented by the following general structural representation (lJ: (I) 13 wherein P. is a C1-06 alkyf group which contains at least. one --OH moIety, and preferably P. is selected front: CFI2OH. CMCH2OH, CH(OH)CF13, Cl-{(OFl)CH2CIft CFbCH7CFhOH. CH2CFI{OH)CH3, Cl:{(OH)CH2CH3, CH(OFJ)CH3CM2OH.

Cl:l(OH)CH(OH)CH, and CHOH)CH(OH)Cl-LOH, and the phenyl ring may optionally substituted with one or more further moieties such as C1-C3 alkyl groups but is prelerably unsubstituted. A specific usethl phenyl containing glycol ether solvent is commercaily supplied as DCIW.ANOL PPM, described to he a propylene glycol phcnyl ether which is described by it supplier as being represented by the fbllowing structural represeritauon (II); CH3 (O-CH2CH-OH (II) arid further, indicated is that the major isomer is as indicated, which suggests that other alkyl isomers are also present. One or mare such.. phenyl containing glycol ether solvents may be used in. the organic solvent system, but preferably the inventive compositions comprise a single phenyl containing glycol ether solvent, and especially preferahi the sole phenyl contalnmg glycol ether solvent present in the compositions is propylene.

glycol phenyl ether which has been ibtind to be unusually effective. The plienl containing glycol ether solvents comprise about 0.05 0.85%wt, preferably about 0.1 - 0.4 %wt and especially preferably about 0.1$-0.38%wt of the inventive compositions.

Optionally but preferably the compositions of the in venti.on ibriher additionally comprise one or more non-phenyl moiety containing glvcol ether organic solvents.

Exemplary glycol ethers are those having the general stnacture R-O-Rb-OF1, wherein Ra is an alkyl of I to 20 carbon atoms, or an aiyl of at least 6 carbon atoms, and Rh is an alkylene of I to 8 carbons or is an ether or polvether containing from 2 to 20 carbon atoms. Exemplary glycol ethers include propylene glycol methyl ether, dipropylene glycol methyl ether. tripropylene glycol methyl ether, propylene itlycol isobutyl ether, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol butyl ethel\ dicthylene glycol phenyl ether, propylene glycol phenol ether. clipropylene glycol 1 5 monobutyl ether and mixtures thereof. The non-phenyl moiety containing glycol ether organic solvents comprise about 0 -5%wt., preferably abciut 0.1 -2 %WL, and preferably about 0.95 2.2%wt. and articularly preferably about I --* I.75%wt. of the inventive compositions. In particularly preferred embodiments, propylene glycol n-butyl ether is the sole non-phenyl moiety containing, viz., aliphatic, glycol ether organic solvent present.

In pm-tic ularlv preferred embodiments the compositions cnncu.rrently con.prise each of: about 2-4%wt. isopropanol, about 0.19 0.4%wt., but preferably about 0.19- 0.3 %wt. propylene glycol phenyl ether and about I I.S%wt, propylene giycol n-hutyl ether which arc present, preferably to tile exclusion of any further organic solvents in the compositions.

In paiticulark' 1,referred embodiments the compositions concurrently comprise each of: about 0.185 -0.3%wt.. but preiCrably not in excess of about 0.3%svt. propylene glycol phenyl ether; a combined total mass of between about 1 --2%wt,, preferably between about 1.2 -I.8%wt. of propylene glycol n-butyl. eth.er and dipropylene glycol monobutyl ether wherein the weight ratio of the!brmer to the latter is between about 0. I 0.3: 1, preferably is between about 0.15 -0.2:1 of the former to the latter on a weight basis; and, concurrently about 2 -4%wt. but preferably about 3 -4%wt. isopropanol; preferably to the exclusion of any thrther organic solvents in the compositions.

The inventor has unexpectedly and surprisingly discovered that highly effective.

largely aqeuous cleaning compositions suited for the cleaning of grease laden hard surfaces, while at the same time being essentially low residue. low streaking or "streak free" may now he produced particularly in compositions which include amine oxide based surfactants to the exclusion of further ca onic and anionic surfactants, concurrently with the preferred organic solvent systems described herein.

Desirably the inventive compositions are essentially free of any fuirther organic solvent constituents other titan those identified above.

The compositions also necessarily include one or more alkanolamines, which may provide alkalinity to compositions, as well as simultaneously providing excellent removal of hydrophobic soils which may be encountered, e.g., greases and oils. For the pmiiposes of this Patent specification, alkanolamin.es are not considered to he organic solvents.

I S Exemplary useftil alkanolamines include monoalkanolamines, dialkanolamines, trialkanolamines, and aikylaikanolamines such as alkyidialkanolaniines. and diahlcyi monoalkanolammes. The alkan.ol an.d alkyl groups are generally short to medium chain length, that is, from I to 7 carbons in length. For d h and triallcanolamines and dialkyl-monoalkanolanunes, these groups can he combined on the same amine to produce lbr example, methylethylhydroxypropylhydroxvl amine. One of skill can readily ascertain other members of this group. The alkanolantine constituent may he a single aikanolaniine. or ma.y he a plurality of alkanolamnines as well. Partmcularly preferred as the alkanolarnine constituent is tnonoethanoianiine which has found to be elidetive both as an alkalinity sonite and as a cleaning component. in certain particularly preferred embodiments the alkalinity constituent of the invention consists solely ofa single alkanolaniine, preferably se lectecl from ni.onoalkanolaniines, dia.lkanolamines, trialkanolainines of I to 7 carbons in length. preferably is a single nionoalkanolamine sclec ted from linear mo.noethanolammne, monopmpanolamine or mnonohutanolanune, and especially preferably is monoethanolamine, which is advantageously present to the exclusion of other alkano.lamines. The one or more alkanolamincs comprise about 0.1 Sti4iwt. preferahly about 0,5 2.5%wt and especially preferably 0.5 O.$%wt of the inventive compositions.

in preferred embodiments the compositions include 0 to about 0,0005%wt of an antifhaniing agent. typically silicone ant:iibaming agents comprising silicone and siloxane ob'mcrs often provided as emulsions in water. A particularly suitable anti oam agent is a P0l»=/limetliYlSiloXafle composition. It has been observed that the inclusion of a mmor amoun U of antilbani agent is ad vantageously used the compositions described herein to reduce foaming tendencies of the composttons, such that a brief visible foam is present and seen when the compositions are wiped on a surface lut quickly breaks and dissipates and thus does not leave undesired residues on die treated. surface. While such an antithaining constituent may be excluded from. the compositions taught herein.

advantageously they are present it amounts ol from about 0.0001 0.002%wt., based on the weight of the silicone and/cr sjloxane compounds of the compositions of which the fbrm a part. Surprisingly even such small amounts ol this constituent were found to be effective.

In preferred embodiments the compostaons include a hydrotrope which primarily fulfills the function ot'improving the solubility of any fragrance constituent present in the largely aqtieous compositions taught herein. Such a constituent may be omitted however if desired hut is advantageously present. Exemplary hydtropes include, inter olin.

benzcne sulftinates. naphthalene sulfonates, C 1-C aikyl henzene su Ifonates. naphthalene sulfonates, C5-Cu alkyl siiifonates. C-C11 alkyl sulfiutes, aikyl diphenyloxide disulfonates, and phospi ate ester hydrotropes. The.hydro tropic compoun.d s of the invention are often provided in a salt form with a suitable counterion. such as one or more alkali, or alkali earth metals, such as sodium or potassium especially sodiLun, However, other water soluble eaflons such as ammoniuin. mono. di and tn-lower alkyl, i.e., C1 aflcanol ammonium groups can he used in the place of the alkali metal cations.

Exemplary alkyl henrene suifonates include, lbs example, isopropylhenzene sul Ibnates, xylene sulfbnates, tolucne sulfonates, cu.rnene sulibnates. as well as mixtures thereof Exemplary Cs-Cu alkyl sulfbnates include l.icxyl su.llbnates, octyl sulfonates, and hexyi'octyl sulfbnates, and mixtures thereof Particularly useful hydrotrope compounds include henzene suifonates, o--toluene sulthnates, m-toluene sulfonates. and p-toluene sulthnaLs: 2,3-xyiene sulfonates. 2,4-xylene sulibriates. and 4,6-xylene sulfonates; cumene sultonates, wherein such exemplary.hyclrotropes are generally in a salt form thereof, including sodium and potassium salt forms. While such a hydrou'ope may he excluded from the compositions taught herein, advantageously they are present in amounts of from about 0.001 -2%wt., preferably about 0,01-0.5 %wt and especially preferably about 0.1 0.3 %wt of the present mvent ye. compositions.

The inventive compositions may comprise, up to a cumulative total of about I 0%wt. but preferably a cumulative total of about 5%wt. of one or more conventional addi u.ves selected coloring agents, fragrances and fragrance solubil izers, viscosity modifying agents including one or more thickeners, pH adjusting agents arid p1-I huflCrs including organic and inorganic, salts, optical brighteners, abrasives, arid preservatives, as well as other optional constituents known to the art. Preferably however, any such conventional additive constituent which undesirably diminishes the preferred low streaking characteristics of the invention are expressly omitted from the compositions.

Preservatives ma also be added in minor amounts iii the compositions according to the invention, e.g., including those which are presently commercially available under the trademarks Kathon ® CG/JCP (Robin & Hans, Philadelphia Pa.), Suttocide® A (Sutton Labs, Chathani N.J.) as svell as Midtect® TFP (Tb-K. Co., Emerson. NJ.). Such may he included in minor amounts, e.g., 0.0001 to about 0.5% by weight of the total concerilrate composition, more generally an amount of about 0. 1% by weight and less, and preferably resent in. amounts of about 0.05% by weight and less.

The concentrate compositions of the invention optionally bus. in certain cases desirably include a fragrance constituent. Fragrance composItions as received from a supplier may he provided as an aqueous or organically solvated composition. and may include as a hydrotrope or emulsifier a surface-active agent, typically a surfaetant, in minor amount, generally not in excess of about 1.5%wt. Such a fragrance constituent may be present in any effective amount, but are typically compnses not more than 2%wt, preferably not more than 1 %wt. of the composItion..

Thickeners such as clays, cross-linking acrylic polymers, e.g. CARBOPOL, $0 gums. celluloses including modified celluloses, and the like are desirably excluded as such are expected to reduce the preferred low streaking characteristics of preferred embodiments of the invention.

Similarly, abrasive materials such as: oxides, e.g., calcined aluminum oxides and the like, carbonates, e.g., calcium carbonate and the like. quartzes, siliceous chalk.

S diatoniaceous earth, colloidal silicon dioxjde, alkali metasihcates, e.g.. sodium metasiheate and the like, perlite, pumice, feldspar, calcium phosphate. organic abrasive materials based on coinminuted or particulate polymers especially one or more of polyolefins. polyetl ylenes, pohpropylenes, polyesters, polystyrenes, acetonitril c-hutadienestyrene resins, melamines, polycarhonates, phenolic resins, epoxies and polvurethanes, natural materials such as, for example, rice hulls, corn cobs, and the like.

or talc and mixtures thereoh and the like are desirably excluded as such are expected to reduce the preferred low streaking characteristics of preferred embodiments of the invention.

in certain particularly preferred embodiments the compositions of the Invention expressly exclude organic acids, e.g.. citric, maNe. succinie, lactic, glycolic. fomaric, tartaric, and fOrmic, etc. The compositions otthe invention may include one or more pH adjusting agents.

or compounds which ma be use to adjust the p1:1 of the compos ions, or to buffer the pH of the composttions of which they fonn a pail. However such is frequently unnecessary due to the inclusion of the alkanolam inc constituent, which imparts alkalinity to the cotnpo si tion s.

In certain particularly prefen-ed embodiments the compositions of the invention expressly exclude inorganic acids, e.g., sulli1ric acid, phosphonc acid, potassium dihydrogenphusphate, sodiu m dihydrogenphosphate, sodium sulfite, potassium sulfite, sodium pvrosuliite (sodium metabisulfite), potassium pyrosulhte (potassium nietabisul lite), acid sodium hexarnetaphosphate, acid poutssium hexametaphosphate, acid sodium pyrophosph ate, acid potassium pyrophosphate, , hydrochloric acid, and sulfamic acid. Other water dispersible or water soluble inorganic or mineral acids not specifically eludicated herein. arc also desirably excluded from certain preferred embodiments of the inventive compositions.

The inventive compositions are highly aqueous and comprise at least 90%wt.

water, which is preierabiv djsti led. demineralized but especially preferably is deionized water.

The inventive compositions am readily pourable and pumpable, and are liquids at room temperature, exhibiting a viscosity in the range of from about I cP to about 50 eP at such environmental conch itons.

The compositions typically exhibit apH in the range of about 9.5 -11.5, preferably in the range of about 10.5 -.1 1.35.

In part:icuiarly prefelTed embodiments the present invention provides hard surli4ce it) cleaning compositions comprising (preferably consisting of, or consisting essentially of): about 0.01 1.5%wt. of one or more amine oxide surf dctants: about 0.5 6%wt. of a Ci-C ntonohydric prtmary alcohol.

about 0.05 -0.8 59/owl, of a phenyl containing glycol ether solvent: 0 to about 5%wt, of a rionphenyl containing glveol ether organic solvent: about 0. I -5 %wt. of an. alk-anolamine; 0 to about 0.005%wt., preferably about 0.01101 0,002%wt. ofa silicone based an.titbaming constituent: 0 to about 0.5%wt, ofa hvclrotrope: at least 90%wt. water: and optionally, one or more ibid er convcn.tonal additives in a cumulative amount olnot in excess of about I 0%wt. of the total of the composition of which they Ibim a part.

The compositions are easily Produced by any of a number of known art techniques. Conveniently, apart of the water is supplied to a suitable mixing vessel further provided with a. stirrer or agitator, and while stirilug, the remaining constituents are added to the mixing vessel, including any final amount, of water need ccl to provide to I 00%wt. of the inventive composition.

The composition provided according to the invention can be desirably provided as a consumer product in a manually openable and resealable storage container, which may be either rigid or may he a deformable "squeeze bottle" type dispenser. Preferably' however the composition is advantageously provided in a bottle, flask or other reservoir and dispensed via a nozzle or a pump, e.g., a manually operable pump or a manually -10 operable trigger spray to a haiti surthee requiring treatment. The inventive compositions may also be provided to a pressurizabie container. e.g.. an aerosol container with a suitable amount, typically up to about I0%wt. based on the weight of the inventive composiuoi. of an aerosol propellant, e.g.. a I ydrocarbon. of from I to 10 carbon atoms, such as n-propane, n-butane, isobutane. n-pentane, i.sopcntane, and mixtures thereof or a non-h drocarbon gas, e.g.. CO2. N2. etc. or br that matter, even pressurized aii The inventive compositions are advantageously used in the cleaning treatment of hard surthces, as the haiti surface cleaning co.mposi flon accord ing to the invention is desirably provided as a ready to use product which may he directly applied to a hard surface. The composition may he applied directly from a product container as a liquid, or may be applied as a wipe article preimpregnated with a quantity of t:he said composition.

Cleaning of a hard surface may be effectuated by applying a cleaning effective amount of a composition accordmg to any preceding claim, and optionally thereafter wiping the treated hard surface to remove at least a part of the composition from the hard surthce.

iS By way of non-limiting examples, hard surfaces include surtuices composed of refractory materials such as: glazed and unglazed tile, brick, porcelain. ceramics as well as stone including marble. granite, and other stones surthces; glass; metals; plastics e.g. polyester, vinyl, fiberglass and other hard surfaces known to the industry. Hard surfaces which are to he particularl.y denoted arc surthees normally encountered i.n a lavatory, e.g., lavatory fixtures, shower stalls, bathtubs and bathing appliances (racks, curtains, shower doors, shower bars) toilets, bid ets, waIl and flooring surfaces as well as those associated with kitchen environnients and other environments associated with food preparation.

including cabinets and eountertop surfirces as well as wails and floor suribees especially those which include refractory materials, plastics, Formic.a®, Co;ianfr) and stone. The inventive compositions are particularly effective in the cleaning treatment of polished or reflective surfaces, e.g, glazed enameled surthees, glazed ceramic surfaces, glass, minor surfaces.. metals and polished metal surthces and the like.

lllustrative example compositions which were produced include those set fbrth below. The illustrative example compositions demonstrate particularly preferred embodiment of the invention as well as preferred wcght percentages as well as preferred relative weight percentages/weight ratios with regard to the respective individual constituents present withm the composition

Examples

Examples tile iflVefltive hard surthee treatment compositions are described in the following Table I; the constituents indicated, on fable I used to produce the lormulatins were used on an "as supplied" basis; the identity of these constituent's are disclosed in more detail on Table 2. The hard surface treatment compositions were produced by mixing the constituents into water as outlined in Table I in a beaker at room temperature which was stined with a conventional magnetic stirring rod. or paddle mixer; stirring continued until the formulation was homogenous in appearance. It is to be noted that the constituents might be added in any order. but it is preferred that a first premixture is made of any fragrance constituent with one or more surfactartis and'or hydrotrope in an aliquot of water used in the inventive hard surface treatment compositions. The order of addition is not critical, but good results are obtained where the surthctants (which may be also th.e premixture of the fragrance and surThetants) are produced prior to the addition of the remaining constItuents to the water. The amounts of the named constituents are indicated in %w/w based Oil a total weight of the hard surthcc treatment eotnposiUOn of which they' form a part. The total amount of water present in each composition was based on the 2(1 amount of water provided via one or niote of the named constituents.

Table I also illustrates a series of "comparative examples" which were made in a similar manner, which are identified by a "C" preceding a digit.

______________ ______ Table I _____ _______ ___________________ Ci 1 2 3 4 5 6 anionic surfaetant 1.67 -----Ammonyx LO (30%) --1.67 1.67 1 67 1.67 1.67 1;67 monoethanolamine 0.71 0.71 0.71 0,71 0.71 0.71 0.71 (85%) _______ _______ ______ 1 _____________ Dowanol PPH (93%) 0.2 0.2 0.4 0.3 0.4 0.3 0.3 Dowanol PnB 1.5 1.5 1 1 1.5 1.5 1.5 isopropanol 4 4 4 2 2 2 2 sodium curnene 0.25 0.25 0.25 0.25 0.25 0.25 sultonate (40%) _________________ _______________ ______ _____ _______ DSPAntifoarn 1 1. 1. 1 1 1 1 L (0.5%) _____________ _____ ----fragrance 0i1doo.o4Th1o4 0.04 0.04 di water q.s. q.s. q. Q5. p.s. qs. .5.

All ofthe constituents in the compositions on the foregoing Table I are indicated in weight percent, and each composition comprised I 00%wt. The individual constituents were used, "assupplied" from their respective source and unless otherwise indicated, S each of the constiments are to he understood as being "l00%wt. actives". Deionized water was added in quantum. sufficient, "q.s." to provide the balance to I 00%wt. of each of the example and comparative example composthons. Further identity ofi and the sources of the constituents used in the fbnnulations of Tables I are described on the

following Table 2.

-_______

anionic surfactant sodium alkane sultonate surfactant, e.g., HOSTAPUR SAS (30%wt. actives) (cx.

_________________________________________ Cia na nt) ____________________________ Ammonyx LO (30%) lauryl dimethyl amine oxides (30%wt.

___________________ actives) cx. Stepan Co. monoethanolarnine (85%) monoethanolamine (85%wt actives) cx.

___________________ Huntsman Corp. ____________ Dowanol PPH (93%) propylene glycol phenyl ether (93 %wt.

________________ actives) cx, Dow Chem. Co. Dowanol PnB propylene glycol n-butyl ether (100%wL _______________ _________ actives) cx. Dow Cheni. Co. isopropanol _____________ isopropan (99% wt. actives) propylene glycol propylene glycol (100%wt. actives)_______ sodium cumene sulfonate sodium cumene sulfonate. supplied as (40%) NAXONATE 4OSC (40%wt. aetives) cx.

_______________ Nease Corp. DSP Antifoam (0.5%) DSP Antifoam (10%wt. active silicone emulsion, further diluted with deionized water to form a 0.5%wt. active silicone _______ ____________ premix) cx. Dow Coming Co. fragrance fragrance composition, proprietary _________________________ composition of its supplier di water deionized water Several of the foregoing compositions were tested and evaluated according to one or more of the thllowin test protocols, Evaluation of Baked Greasy Soil Cleaning The efficacy of compositions according to present 1 \ention (example "P2") as well as comparative examples based on conrmcrciai products was evaluated in accordance with the fol lowtng lest protocol which was used to evaluate cleaning efficacy of baked on, tougjt greasy soils on a hard surtbces.

A "baked greasy test soil" was prepared from "Part I" and "Part H" soils which were prepared as follows.

The "Part 1" soil was prepared by mixing together the ingredients indicated on the

following table

I I soil ________ Peanut oil 26.2 Corn oil 14.5 Cherry pie filling 14.5 Ground beef 14.5 (iround Pork 14.5 Accent® (monosodium glutamate flavor aid) 0.60

Table salt 0.60

Deionized water 14.6 and thereafter baking the mIxture in a glass baking dish at 400°F (205°C) fbr 2 houts, The Part 1 soil was allowed to cool to 100°C or less. After being prepared, the Part I may be divided into aliquots for later use and refrigerated in glass jars. If a refrigerated aii.quot is later used, it is first heated in a hot water bath to 100°C and stirred or shaken prior to mixture with an amount ofth.e Part II soil.

The Part 11 soil was "Kitchen Bouquet®". a commercially available bottled food product used to flavor and color gravy; it is believed to be pnmarily burnt sugar caramel, which is used "as supplied" from the manufuicturer.

The baked greasy test soil used. in the evaluation is mixed it mediately prior to soiling test tiles by combining $3.3 %wt. of the Part I soil at a temperature of 100°C with 16.'7%wt. of the Part II by blending in a laboratory beaker fir a minimum ot'5 irunutes using a hand held homogenizer.

As test substrates, white porcelain enameled steel tiles (4 inches by 4 inches) iii size were used. The enameled tiles are all first cleaned with mild hand dishwashing -. 14 detergent, wiped with ethanol and placed in vertical racks and allowed to dry and cool to room temperature., approx. 68°F (20°C).

The baked greasy test soil was heated to.100°C in a water bath, and kept homogenized during application to test tiles to avoid settling of the test soil. Prior to S application ol the test soil. each tile was weighed. The test soil was thereafter applied to the dry test tiles by depositing 0.75 grains t/-0.10 grams) on the poitelain surilice of each test tile using a small kitchen hasting brush which was used to uniformly distribute said soil. After application, the test tile was reweighed to assure that at least 0.75 grams were deposited on the tile. lfneeded, a few additional drops of the baked greasy soil was 1 0 applied to the tile, and applied by brushing and the tile reweighed to ensure that at least 0.75 grams of the baked greasy soil were deposited on the tile. This procedure was repeated until at least 0.75 grams of the baked greasy soil were deposited on the tile.

Thereafter, the tile was placed on metal baking tray and covered prior to subsequent tile baking. When sufficient test tiles were coated with the requisite amount of the baked IS greasy soil, the covered tiles were baked in convention oven at 300°F for 90 minutes to further solidify the baked greasy test soil. After the 90 minute lime period, the baking trays were removed from the oven, the covers removed and the tiles were allowed to cool at least 12 hours, (typically ovemght,) poor to being used in the cleaning evaluation ofa sample composition.

Standard sized cellulose test sponges, approximately 1 0 cnn by 7.6 cm sponges were subjected to three rinse and spin dry cycles in a. domestic launtdry washing machine in order to ensure that all soils, detergents or other contaminants were flushed from the sponges. After the third spin cycle, the sponge were removed from said machine and placed in. a tightly sealed plastic container to maintain cleanliness as well as their relative dampness prior to their use iii a cleaning evaluation.

To evaluate cleaning, a soiled test tile prepared as indicated above was placed in a SHEEN wet abrasion scrub tester (Reference: 903P0) and secured. Prior to use. the dampened sponges were oven.vrapped with a nonporous polymer film in order to enclose the sponges and provide a liquid barrier between the sponge and a composition. to be tested. For each tested composition (example E2, as well as fbr each comparative example), a SO ml amount of a composition was loaded onto a uniformly sized sheet of 1:5..

dry wipe. e.g., a dry paper towel, which was then wrapped to enrobe a polymer film wrapped sponge, and then inserted into the holder of the SHEEN tester. A 2(10 gram weight was added to each of the sponge holders in order to ensure compression of the sponge and good surface scrubbing of the soiled test tile with the wetted taper towel The S SHEEN tested was then actuated and controlled to provide 3 cleaning cycles (6 linear strokes over the surtuice) over the test soil oil a test substrate, and thereafter the test substrate was removed, rinsed with approximately equal amounts of tap water, and dried with compressed air from an airbru aft compressor. This test was repeated several times fbr each eomposrtton in order to provide at least 3 rep hcates for each. tested composition.

1 lie clcawog effLdL\ of the tusted comoositions v as evaluated uuliiing a high resolutton digital imaging system which evaluated the light reflectance characteristics of the each treated test substrate. This system utilized a photographic copy stand mounted within a light box housing which provided diffUse, reflected light supplied by two 15 watt, 1 8 inch type 1'S fluorescent bulbs rated to have a color output of 4100K which a:pproxirnated. "natural sunlight" as noted by the manufacturer. The two fluorescent bulbs were positioned paraflel to one another and placed parallel and beyond two opposite sides of the test substrate (test tile) and in a common horizontaf pfane parallel to the upper surhice of the test substrate being evafuated, and between the upper surface of the tile and the front element of the lens of a CCD camera. The CCD camera was a "Qlrnainu Retiga series" CCD camera, with a Schneider-Kreuznach Cinegon Compact Series lens.

fl,9/ 10mm, 1 inch fonnat (SchneiderjKreuznach model #21 -1 001978) which CCD camera was mounted on the copy stand with the lens directed downwardly towards the hoard of the copy stand on whiLh a tit. neil kst substiate t is placed ducetla btneatli the kns The light box housing enclosed the. photographic copy sttncl the tts ii 18 inch fluorescent bulbs and a closeable door permitted far the insertion, placement and withdrawal of a treated test substrate which door was closed during exposure of the CCD camera to a treated test substrate. in such a manner. extraneous light and variability of the linht source during the evaluation ofa series of tested substrates was minimized, also minimizing exposure and reading errors by the CCD camera.

Th Ct F) . amen n is flthhtd to a desktop comoutci \ a I ireuie IEEE 1104 interface and exposure data from the CC]. camera wa.s read b a computer program, -16 - "Media Cybernetics hage Pro Pius v. &0", which was used to evaluate the exposures obtained by the CCD camera. which were subsequently analyzed in accordance with the following. The percentage of the test soil removal tram each treated test substrate was determined utilizing the following equation: % Removal = RC -RS X 100

RO-RS where

RC = Reflectance of tile after cleaning, with test product RO = Reflectance of original soiled tile RS Reflectance of soiled tile The results of this evaluation was averaged for each of the tested compositions, and the results of the evaluation are reported on the following Table 3.

Drying Rate and Streaking Testing of the streaking and drying characteristics of certain of the compositions described on Table I were performed according to the following protocol.

Prior to application of tested composition, a 12 inch by 12 inch glass mirror tile was cleaned and thoroughly rinsed with water to ensure the removal ol'any surface deposits, and subsequently the surtlice of the minor was wiped with alcohol app lied with a disposable lint free laboratory wipe (Kimwipe®, cx. Kimberly-Clark, Inc.) Thereafter, for each product tested, a quantity of the product was prov ded to a non-pressurized bottle equipped with a trigger sprayer. Next, the cleaned and prepared inin'or was placed on a horizontal laboratory henchtop and the trigger was manually pumped once to dispense a quantity' of the test composition. Immediately thereafter the applied composition was wiped using a standard paper towel sheet folded once to fbnna a 3.5 by 5 inch rectangle, in circular motion 6 times to evenly distribute over the mirror surface. and thereafter the wipe was immediately turned over and used to wipe the minor $0 rn a zig-zag path from the top of the mirror to bottom, whereby the wipe was moved downwanlly in. a eontinu.ou.s motion in the zig-zag attern with 4 passes. The mirror was im.mediately obsen;ed by a skilled obsenerto evaluate drying time/rate and degree of streaking. These results are reported on Table 3.

With regard to drying rate, the perfnnnance ofa tested composition was evaluated accoitling t.o the following scale: "10" indicated total product drying within about 3 S seconds "9" indicated total product drying within about 6 seconds: "8" indicated total product drying within about 9 seconds: "7" indicated total product drying within about 12 seconds; "6" indicated total product drying within about 15 seconds; "5" indicated total product drying within about 18 seconds; "4" indicated total product drvine within about 21 seconds; "3" indicated total product diving within about 24 seconds: "2" indicated total roduct drying within about 3 seconds and a rate of "I' indicated total product drying within about 30 seconds or more.

With respect to streaking rate, such was evaluated following drying of dc tested composition on a mirror tile. The ranking of streaking was based on a linear scale having the thllowing two endpoints, a "best perlonnanee" scrre being "10", indicating no visible streaking/deposits, and having a surface appearance equivalent to the washed and alcohol wiped mirrors prepared lbr testing, and. the "worst performance' score being "2>', equvaient to th.e performance of FLASI-L (cx. Procter &. Gamble Co., United Kingdom) a commercially available trigger sprayahie hard surtuice cleaner and degreaser product which left contiguous visible product residue on. the mirrored surface. All intermediate values were ranked relative to these two endpoints, by an expert panelist. These results are also reported on. Table 3.

_______________ Table 3 _______________ ______________ Composition: I Streaking Drying Rate Cleaning (% ___________________ ______ _________ ___________________ removal) Cl j 5 7. nottesterl F___ 1 ___ 9.5 9 741 2 6.5 ____ 8 70.5 3 9.5 9 75.7 I 86.1 9 9 57.47 6 _______ 9 _______ 9 73,51 FLASH 0.5 2 59A3 VIGOR 9.5 9 nottested -lx -As reported on the I regoing table, the compositions of the invention particu Early El, F.3, E5 and [6 concurrently provided both excellent cleaning ol greasy surthees and at the sante time exhibited essentiafly streak free and low residue cleaning benefit on the tested substrates. Surprisingly the compositions of the invention provided superior cleaning pertormanee than the eo.minerei [lv available FLASH product, which exhibited a high degree of streaking but satisfactory cleaning of greasy surihees, and low streaking and fast drying characteristics eonrparable to a eoinnieretally available glass cleaning product. VIGOR (cx. Eat) Eearlate France).

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Claims (3)

1. Claims: 1 A low streaking hard surface cleaning composition comprising: S about 0.01 1,5%wt. of one or more amine oxide surhietants; about 0.5 -6%wt of a C1 inonohydric primary aicoho L about 005 0.85%wL of a phenyl containing glycol ether solvent; 0 to about 5%\vt. of a nomphenyl containing gi col ether organic solvent; about 0.1 -5%\-vt. of an alkanoiamine; 0 to thorn U 005%st ptcfeiabiy about 0 0001 (1 002%wt of a silicone h ts.d antifriarning constituent; o to about 0.5%wt, of a hydrotrope; at least 90%wt. water; and optionaHy, one or more further convcntion& additives in a cumulative amount IS of not in excess of about I 0%wt. of the total of the composition of which they fbrtn a part.
2. 2. A composition according to claimi comprising about 0,1 --0.7%wt. of one or more amine oxide surfactants.
3. 3. A composition according to claim I. comprising each of: about 2--4% i sopi npanol 0 19 0 4%' t hut pietenbh. (1 19 -0 si t piopy 1cm. glvt.ol phensl ethet mU about 1 1 S°nig ptop\leneglycol n-huts I ethu pie1eiabI to the c'clusion of rnv furthi otg inic coh cots 4, A composition according to claim 3 wherein the compositions comprise as the sole otganic sol ents piesent isopiopanol pmps lenc g1 col plkns I Lthcl aid propylene glyco I n-butyi ether.5 & LonlpOsition accwdins to elami I comprising cach oJ abo it 0 1 XS -0 i%w 2 but preferably not in exc:ess of about 0.3%wt. propyleneglyco I phenyl ether; a combined total mass of between about 1 2%wt,, preferably between about 12 I 8%wt. of prop yle.ne glye.ol n-butyl ether and d ipr pylene gl.yeol monobutyl ether wherein the weight ratio of the lhrmer to the latter is between about 0.! 03: 1. prelèrahiy is between about ft15 02:1 of the lbrnrerto the lattvr on a weight basis; and, about 2 4%wt, but pretbrably about 3 4%wt, isopropanol; preferably to the exclusion of any further organic solvents in the compositions.6. A composition according to claim S wherein the compositions comprise as the sole organic solvents present: isopropanol. propylene glycol phenyl ether and propylene glycol n-but! ether.7. A composition acconiing to any preceding eiaini, wherein the pH of the COiflposltioii is in the range of9.5 11.5.8. A process thr the c!eanmg of a hard surface compnsing the step of: applying a cleaning effective amount of a composition according to any preceding claim, and optionally thereafter wiping the treated hard surthee to remove at least a part of the composition from the hard. surface. -21 -