Acidic aqueous cleaning compositions

Compositions described herein are aqueous detergent compositions, preferably hard surface cleaning compositions, which contain alkyl aryl sulfonate surfactant, selected hydrophobic cleaning solvent, polycarboxylic acid, and aqueous solvent system in solution and/or a micellar phase, the pH being from about 2 to about 4. The have excellent soap scum removal and hard water deposit removal properties and are easy to rinse. Such compositions optionally contain additional anionic sulfate surfactant, cationic surfactant, peroxide and/or hydrophilic polymer for additional benefits.

FIELD OF THE INVENTION 
This invention relates to liquid detergent compositions for use in cleaning 
hard surfaces, particularly bathroom surfaces. Such compositions typically 
contain detergent surfactants, solvents, builders, etc. 
BACKGROUND OF THE INVENTION 
The use of solvents and organic water-soluble synthetic detergent 
surfactants for cleaning hard surfaces is well established. Known liquid 
detergent compositions comprise organic cleaning solvents, detergent 
surfactants, and optional detergent builders and/or abrasives. 
Liquid cleaning compositions have the great advantage that they can be 
applied to hard surfaces in neat or concentrated form so that a relatively 
high-level of, e.g., surfactant material and/or organic solvent is 
delivered directly to the soil. Therefore, liquid cleaning compositions 
have the potential to provide superior soap scum, grease, and oily soil 
removal as compared to dilute wash solutions, e.g., those prepared from 
powdered cleaning compositions. 
The present invention provides aqueous acidic hard surface cleaning 
compositions suitable for removal of soils commonly encountered in the 
bathroom, said compositions having specific mixtures of surfactants, 
solvents, and organic acids. These acidic hard surface cleaning 
compositions remove soap scum and hard water marks. The compositions can 
have disinfectant properties achieved through the choice of actives, 
including citric acid and cationic surfactants, and can be used with or 
without additives such as hydrogen peroxide for additional mold/mildew 
prevention benefits. Further, the compositions can advantageously 
incorporate one or more hydrophilic polymers for improved surface wetting 
and filming/streaking properties. 
SUMMARY OF THE INVENTION 
The hard surface detergent cleaning compositions herein comprise: 
a. from about 0.5% to about 5% alkyl aryl sulfonate detergent surfactant; 
b. from about 1% to about 8% of hydrophobic cleaning solvent selected from 
the group consisting of: di-propylene glycol mono-butyl ether; 
tri-propylene glycol mono-butyl ether; ethylene glycol mono-hexyl ether; 
and mixtures thereof; 
c. optionally, from about 0.25% to about 4% of an anionic cosurfactant 
selected from the group consisting of: C.sub.8 -C.sub.18 linear or 
branched alkyl sulfates; C.sub.8 -C.sub.18 alkyl ethoxy sulfates; and 
mixtures thereof; 
d. optionally, from about 0% to about 2% nonionic alcohol and/or cationic 
surfactant; 
e. from about 2% to about 8% of water soluble polycarboxylic acid; 
f. optionally, an effective amount, up to about 5%, of hydrogen peroxide; 
g. optionally, an effective amount, up to about 0.5%, of a hydrophilic 
polymer selected from the group consisting of: xanthan gum; polystyrene 
sulfonate; polyvinyl pyrrolidone; polyvinyl pyrrolidone acrylic acid 
copolymer; polyvinyl pyridine; polyvinyl pyridine n-oxide; and mixtures 
thereof; and 
g. the balance an aqueous solvent system, and wherein the cleaning 
compositions are predominantly in micellar phase with a composition pH of 
from about 2 to about 4. 
It is believed that the improved cleaning is a direct result of the 
selection of the specific surfactants, solvent and polycarboxylic acids. 
DETAILED DESCRIPTION OF THE INVENTION 
The compositions of the invention are especially useful for cleaning soils 
that are commonly encountered in the bathroom. These include dust 
particles, hard water stains, fatty acids, triglycerides, lipids, 
insoluble fatty acid soaps, and the like. The detergent compositions can 
be used on many different surface types, such as ceramic, fiber glass, 
polyurethane, and plastic surfaces. 
a. The Alkyl Aryl Sulfonate: 
Alkyl aryl sulfonates are an essential component of the invention. Due to 
their ubiquitous nature, such surfactants provide considerable cost 
advantages versus other anionic surfactants. Suitable alkyl aryl 
sulfonates can be neutralized with any alkali metal such as lithium, 
sodium, potassium and the like, or can alternatively be neutralized with 
an ammonium or C.sub.1 -C.sub.9 ammonium salt derivative such as 
mono-ethanol amine, diethylamine, tri-isopropanol amine and the like. They 
can be produced via any suitable process, leading to the formation of 
either "low 2-phenyl" or "high 2-phenyl" derivatives, though the "low 
2-phenyl" derivatives are generally preferred. Such surfactants are 
commercially available from several suppliers globally, including Witco 
Corporation (One American Lane, Greenwich, Conn. 06831), Stepan Company 
(Edens & Witnetka Rd, Northfield, Ill. 60093) and BASF Aktiengesellschaft 
(ESA/1550, D-67056 Ludwigshafen, Germany). 
The detergent compositions according to the present invention are prepared 
with relatively low levels of active. Typically, compositions will 
comprise sufficient surfactant and solvent, as discussed hereinafter, to 
be effective as hard surface cleaners yet remain economical; accordingly 
they typically contain from about 0.5% to about 5% alkyl aryl sulfonate 
surfactant, more preferably from about 1% to about 4% alkyl aryl sulfonate 
surfactant, and even more preferably from about 1.2% to about 3% alkyl 
aryl sulfonate surfactant. It has been found that low levels of surfactant 
can also be advantageous to overall cleaning performance. Thus, at levels 
of alkyl aryl sulfonate higher than about 5%, hard water mark removal is 
observed to deteriorate. While not wishing to be limited by theory, it is 
believed that high levels of surfactant compete for surface sites with the 
polycarboxylic acid required in the present invention, thus inhibiting the 
action of the organic acid. 
The alkyl aryl sulfonates of the invention have a chain length average of 
from about 8 carbon atoms to about 14 carbon atoms, more preferably from 
about 9 carbon atoms to about 13 carbon atoms, most preferably from about 
9 carbon atoms to about 13 carbon atoms. The chain length distribution can 
vary from about 8 carbon atoms to about 16 carbons. Mixtures of linear 
and/or branched alkyl aryl benzene sulfonates are suitable. 
Ammonium and sodium salts of C.sub.11 to C.sub.12 linear alkyl benzene 
sulfonates are most preferred in the context of the present invention. 
Examples of particularly preferred, commercially available sodium alkyl 
benzene sulfonates include Polystep A-13.RTM. available from Stepan, 
Calsoft L-40.RTM. slurry available from Pilot Chemical Company (11756 
Burke Street, Santa Fe Springs, Calif.). and Witconate P1059.RTM. 
available from Witco Corporation (Greenwich, Conn.). Alternatively, the 
desired alkyl aryl sulfonate surfactant can be produced in-situ by 
neutralization of the corresponding alkyl aryl sulfonic acid. Examples of 
suitable alkyl aryl sulfonic acids include Biosoft.RTM. 100 available from 
Stepan Company, Calsoft LAS-99.RTM. available from Pilot Chemical, and 
Lutensit A-LABS.RTM. available from BASF AG in Germany. 
b. The Hydrophobic Cleaning Solvent 
The compositions can also contain one or more hydrophobic cleaning solvents 
at effective levels, typically no less than about 2%, and, at least about, 
in increasing order of preference about 2% and about 3%, and no more than 
about, in increasing order of preference, about 8% and about 6% by weight 
of the composition. 
Good cleaning requires the use of the right hydrophobic cleaning solvent. 
By hydrophobic cleaning solvent, it is meant an agent which remove 
hydrophobic soils such as those commonly encountered in the bathroom. The 
hydrophobic cleaning solvent also can participate in the building of 
viscosity, if needed, and in increasing the stability of the composition. 
Such solvents typically have a terminal C.sub.3 -C.sub.6 hydrocarbon 
attached to from one to three ethylene glycol or propylene glycol moieties 
to provide the appropriate degree of hydrophobicity and, preferably, 
surface activity. Examples of commercially available hydrophobic cleaning 
solvents based on ethylene glycol chemistry include mono-ethylene glycol 
n-hexyl ether (Hexyl Cellosolve.RTM. available from Union Carbide). 
Examples of commercially commercially available hydrophobic cleaning 
solvents based on propylene glycol chemistry include the di-, and 
tri-propylene glycol derivatives of propyl and butyl alcohol, which are 
available from Arco Chemical, 3801 West Chester Pike, Newtown Square, Pa. 
19073) and Dow Chemical (1691 N. Sweede Road, Midland, Mich.) under the 
trade names Arcosov.RTM. and Dowanol.RTM.. In the context of the present 
invention, preferred solvents are selected from the group consisting of 
ethylene glycol mono-hexyl ether, tri-propylene glycol butyl ether and 
di-propylene glycol butyl ether; the ethylene glycol mono-hexyl ether and 
tri-propylene glycol butyl ether are particularly effective when used in 
combination with di-propylene glycol butyl ether. "Butyl" includes both 
normal butyl, isobutyl and tertiary butyl groups. Di-propylene glycol 
butyl ether is most preferred cleaning solvent and is available under the 
trade names Arcosolv DPNB.RTM. and Dowanol DPnB.RTM.. Di-propylene glycol 
t-butyl ether is commercially available from Arco Chemical under the 
tradename Arcosolv PTB.RTM.. The amount of hydrophobic cleaning solvent 
can vary depending on the amount of other ingredients present in the 
composition, but should be present in concentrations of at least, in 
increasing order of preference, about 2% and 3%, and less than, in 
increasing order of preference, about 8, about 6%, and about 5%, by weight 
of the total composition. 
The hydrophobic cleaning solvent is required to provide acceptable 
cleaning. It is believed that the solvent acts to remove soils that bind 
the other soils to the surface, or to loosen those soils so that they can 
be more easily reached and/or removed. 
c. The Anionic Cosurfactant 
The detergent compositions of the present invention optionally, but 
preferably include an anionic cosurfactant. Such surfactants typically 
comprise a hydrophobic chain containing from about 8 carbon atoms to about 
18, preferably from about 10 to about 16, carbon atoms, and include a 
sulfate, sulfonate or carboxylate hydrophilic head group. Examples of 
suitable preferred anionic surfactants include linear or branched alkyl 
sulfate detergent surfactant (e.g., Stepanol AM.RTM. from Stepan), alkyl 
ethoxy sulfates (Witconate 7093.degree. from Witco corporation, One 
American Lane, Greenwich, Conn.). It is found that linear and branched 
C.sub.8 -C.sub.14 alkyl sulfate surfactants, in particular, are preferred 
as they offer improved hard water removal benefits, and can also improved 
soap scum cleaning. In the context of thickened compositions the alkyl 
sulfate surfactant also helps provide improved phase stability. While the 
optional anionic can be used advantageously to improve hard water 
performance, it is more expensive than LAS and can induce higher levels of 
suds. In general, the level of optional anionic surfactants in the 
compositions herein is from about 0.25% to about 4%, more preferably from 
about 0.5% to about 3.5%, most preferably from about 0.75% to about 3%, by 
weight of the composition. 
d. The Non-ionic Alcohol or Cationic Surfactant 
The detergent compositions of the present invention can optionally comprise 
one, or more nonionic alcohols, and/or cationic surfactants. The 
combination of the alkylaryl detergent surfactant with the alcohol and/or 
cationic can provide higher viscosity, as disclosed in copending 
provisional application Ser. No. 60/066,563, filed on Nov. 26, 1997, in 
the names of Alan E. Sherry, Jeffrey L. Flora, Jason M. Knight, and Zuchen 
Lin. Applicants claim the benefit of said application's filing date and 
incorporate said application by reference. Cleaning compositions 
comprising both nonionic alcohol and cationic surfactant can be employed. 
As used herein, "nonionic alcohol" means a linear or mono-branched 
nonionic alcohol comprising an average of from about 8 carbon atoms to 
about 16 carbon atoms, more preferably from about 9 carbon atoms to about 
14 carbon atoms, most preferably from about 10 carbon atoms to about 13 
carbon atoms. Examples of suitable nonionic alcohols include 
2-butyl-1-octanol, 2-methyl-1-undecanol and dodecanol. Linear C10-13 
nonionic alcohols are most preferred. Examples of preferred, commercially 
available nonionic alcohols include Neodol 1.RTM. and Neodol 23.RTM. 
available from Shell Chemical (1 Shell Plaza, Houston, Tex. 77252). It is 
believed that best results are achieved when the chain length of the 
nonionic alcohol most closely matches that of the alkyl aryl sulfonate 
surfactant. For this reason, nonionic alcohols comprising less than 8 
carbon atoms or longer than 16 carbon atoms are not preferred in this 
invention. If present, the nonionic alcohol is present in effective 
concentrations not exceeding about 2%, more preferably in concentrations 
of 1.5% or less, most preferably in concentrations of 1.25% or less by 
weight of the composition. 
Detergent compositions herein that do not contain a nonionic alcohol can 
contain one, or more, cationic surfactants. As used herein, cationic 
surfactants are those which at acidic pH behave substantially as cationic 
materials. The cationic surfactant is to creates viscosity via ion pairing 
with the alkyl aryl sulfonate surfactant disclosed hereinbefore. Cationic 
surfactants can also provide disinfectancy properties and can be selected 
so as to enhance such benefits. Preferred cationic materials are 
quaternary ammonium compounds that have at least one hydrophobic chain 
with lengths of from about 8 carbon atoms to about 16 carbon atoms, more 
preferably from about 10 carbon atoms to about 16 carbon atoms, most 
preferably from about 12 carbon atoms to about 14 carbon atoms. Suitable 
cationic surfactants include quaternary alkyl and alkyl benzyl ammonium 
salts (e.g., Bardac.RTM. 208M from Lonza Incorporated, 1717 Route 208, 
Fairlawn, N.J. 07410) and ethoxylated quaternary ammonium salts (e.g., 
Ethoquad.RTM. surfactants available from Akzo Nobel Chemicals, 300 South 
Riverside Plaza, Chicago, Ill.). Other cationic surfactants include 
ethoxylated amines (e.g., Ethomeen.RTM. surfactants available from Akzo 
Nobel Chemical), alkyl dimethyl betaines (e.g., Rewoteric AM DML-35.RTM. 
from Witco Corporation) or amido propyl betaines (e.g., Rewoteric AMB 
15U.RTM. from Witco Corporation) and amine oxides (e.g., Barlox 10S.RTM. 
from Lonza Incorporated). Incorporation of quaternary ammonium surfactants 
is particularly preferred for compositions intended to deliver 
antibacterial, fungistatic and fungicidal properties. Quaternary ammonium 
surfactants are known in the art and include C10-16 alkyl tri-methyl 
ammonium, C8-14 di-alkyl dimethyl ammonium and C10-16 alkyl dimethylbenzyl 
ammonium derivatives and mixtures thereof. Suitable and commercially 
available C10-16 alkyl tri-methyl ammonium and C8-C14 di-alkyl dimethyl 
ammonium quaternaries are available from Witco corporation under the 
tradename Adogen.RTM.; suitable C10-16 alkyl dimethylbenzyl ammonium 
surfactants may be purchased from Lonza incorporated under the tradename 
Bardac.RTM.. The counter-ion of the quaternary ammonium surfactants may be 
any of those known in the art such as bromide, chloride or methyl sulfate. 
In compositions that additionally contain hydrogen peroxide, the preferred 
counter-ion is methyl sulfate. 
The level of cationic surfactant in the compositions of the present 
invention is preferably no greater than about 2%, more preferably no 
greater than about 1.5%, most preferably no greater than about 1.25% by 
weight of the composition. Cationic surfactants can be used alone or in 
combination with nonionic alcohols for viscosity. 
If present, the level of cationic surfactant plus nonionic alcohol 
comprises at least about 0.1%, more preferably at least 0.3%, most 
preferably at least about 0.5%, and still more preferably from about 0.5% 
to about 2.0%, by weight of the composition. 
e. The Polycarboxylic Acid 
For purposes of hard water stain removal, the compositions are acidic with 
a pH of from about 2 to about 4, more preferably about 3. Acidity is 
accomplished , at least in part, through the use of one or more organic 
acids that having a pKa of less than about 5, preferably less than about 
4. Such organic acids also can assist in phase formation for thickening, 
if needed, as well as provide hard water stain removal properties. It is 
found that organic acids are very efficient in promoting good hard water 
removal properties within the framework of the compositions of the present 
invention. Lower pH and use of one or more suitable acids is also found to 
be advantageous for disinfectancy benefits. Examples of suitable organic 
acids include citric acid, tartaric acid, succinic acid, glutaric acid, 
adipic acid, and mixtures thereof. Such acids are readily available in the 
trade. Examples of more preferred acids include citric acid (available 
from Aldrich Corporation, 1001 West Saint Paul Avenue, Milwaukee, Wis.) 
and a mixture of succinic, glutaric and adipic acids available from DuPont 
(Wilmington, Del.) sold as "refined AGS di-basic acids". Citric acid is 
most preferred. The amount of organic acid in the compositions herein can 
be from about 1% to about 10%, more preferably from about 2% to about 8%, 
most preferably from about 3% to about 6% by weight of the composition. 
f. Optional Source of Peroxide: 
The compositions of the invention can contain peroxide such as hydrogen 
peroxide, or a source of hydrogen peroxide, for fuirther disinfectancy, 
flngistatic and fungicidal benefits. Peroxide is believed to enhance the 
longevity of the benefit because of its well known residuality and slow 
decomposition to produce radical species. The components of the present 
composition are substantially compatible with the use of peroxides. 
Preferred peroxides include benzoyl peroxide and hydrogen peroxide. These 
can optionally be present in the compositions herein in levels of from 
about 0.05% to about 5%, more preferably from about 0.1% to about 3%, most 
preferably from about 0.2% to about 1.5%. 
When peroxide is present, it is desirable to provide a stabilizing system. 
Suitable stabilizing systems are known. A preferred stabilizing system 
consists of radical scavengers and/or metal chelants present at levels of 
from about 0.01% to about 0.5%, more preferably from about 0.01% to about 
0.25%, most preferably from about 0.01% to about 0.10%, by weight of the 
composition. Examples of radical scavengers include anti-oxidants such as 
propyl gallate, butylated hydroxy toluene (BHT), butylated hydroxy anisole 
(BHA) and the like. Examples of suitable metal chelants include diethylene 
triamine penta-acetate, diethylene triamine penta- methylene phosphonate, 
hydroxyethyl diphosphonate and the like. 
g. Optional Hydrotuhilic Polymer: 
In a preferred embodiment, the compositions of the present invention can 
advantageously incorporate low levels of hydrophilic polymer. These 
polymers have been found to enhance water sheeting on surfaces and improve 
filming streaking as disclosed in copending provisional application Ser. 
No. 60/061,296, filed on Oct. 7, 1997, in the names of Nicola John 
Policicchio and Alan Edward Sherry. Applicants incorporate said 
application by reference. While not wishing to be limited by theory it is 
believed that such polymers hydrophilically modify ceramic surface thereby 
reducing water surface tension and inducing improved water sheeting on 
said surfaces. This sheeting effect allows for channeling of dissolved 
soils down shower walls in bathrooms, leading to lower residual soil 
levels. Hydrophilic polymers have also been shown to mitigate the surface 
spotting caused by surfactants, especially for compositions that 
additionally include quaternary ammonium surfactant. Preferred hydrophilic 
polymers to be used in conjunction with compositions of the present 
invention include xanthan gum, polystyrene sulfonate, polyvinyl 
pyrrolidone, polyvinyl pyrrolidone/acrylate copolymer, polyvinyl pyridine 
and polyvinyl pyridine n-oxide. For compositions that include optional 
hydrogen peroxide, the most preferred polymers are polyvinyl pyridine and 
polyvinyl pyridine n-oxide. The preferred polymers, if present, have an 
average molecular weight of from about 10,000 to about 5,000,000, more 
preferably from about 20,000 to about 1,000,000, most preferably from 
about 30,000 to about 500,000. The level of polymer desired to achieve the 
desired benefits is from about 0.001% to about 0.10%, more preferably from 
about 0.005% to about 0.075%, most preferably from about 0.01% to about 
0.05%. The specific level of polymer depends on the formulators objective. 
Thus, while improved sheeting results from increased level of polymer, it 
is also found that hard water removal performance deteriorates. 
Other Optional Surfactants and Solvents: 
In addition to alkyl aryl sulfonates and preferred optional anionic 
surfactants disclosed above, the hydrophobic cleaning solvents, the 
compositions of the present invention preferably comprise other additional 
anionic surfactants such as paraffin sulfonates (Hostapur SAS.RTM. from 
Hoechst, Aktiengesellschaft, D-6230 Frankfiurt, Germany). alkyl ethoxy 
carboxylates detergent surfactant (Neodex.RTM. from Shell Chemical 
Corporation), and the like. 
Nonionic detergent surfactants can also be present. Suitable nonionic 
detergent surfactants for use herein are alkoxylated alcohols generally 
comprising from about 6 to about 16 carbon atoms in the hydrophobic alkyl 
chain of the alcohol. Typical alkoxylation groups are ethoxy and/or 
propoxy groups. Such compounds are commercially available under the series 
Neodol.RTM. from Shell, or Lutensol.RTM. from BASF AG with a wide variety 
of chain length and alkoxylation degrees. Preferred nonionic detergent 
surfactants for use herein are according to the formula R(X).sub.n H, were 
R is an alkyl chain having from about 6 to about 16 carbon atoms, 
preferably from about 6 to about 10, X is an alkoxy group, preferably 
ethoxy, or a mixture of ethoxy and propoxy groups, n is an integer of from 
about 4 to about 30 preferably about 5 to about 8. Other non-ionic 
surfactants that can be used include those derived from natural sources 
such as sugars and include alkyl polyglucosides (e.g., Simusol.RTM. 
surfactants from Seppic Corporation, 75 Quai d'Orsay, 75321 Paris, Cedex 
7, France) and N-alkyl glucose amide surfactants. If present, the 
concentration of nonionic surfactant is from about 0.1% to about 3%, more 
preferably from about 0.1% to about 2%, by weight of the composition. 
The compositions of the present invention can also include zwitterionic 
surfactants such as sulfobetaines and hydroxy sulfobetaines in effective 
concentrations preferably not exceeding about 2% by weight of the 
composition. 
Other commercial sources of such surfactants can be found in McCutcheon's 
EMULSIFIERS AND DETERGENTS, North American Edition, 1997, McCutcheon 
Division, MC Publishing Company, also incorporated herein by reference. 
h. The Aqueous Solvent System 
The compositions are aqueous, comprising at least about 60% aqueous solvent 
by weight of the composition, more preferably from about 60% to about 90% 
by weight of the composition. The aqueous compositions are in micellar 
form, and do not incorporate substantial levels of water insoluble 
components that induce significant micellar swelling; the compositions are 
also adjusted to a final pH of from about 2 to about 4, preferably about 
3. 
The aqueous solvent system can also comprise low molecular weight highly 
water soluble solvents typically found in detergent compositions, e.g., 
ethanol, isopropanol, etc. 
The compositions of the present invention can also include other solvents, 
and in particular paraffins and isoparaffins, which have been found to 
substantially reduce the suds created by the composition. 
Optional components, such as perfumes and other conventional adjuvants can 
also be present. 
Optional Perfume and Additional Adjuvants: 
An optional, but highly preferred ingredient, is a perfume, usually a 
mixture of perfume ingredients. Indeed, perfume ingredients, which are 
typically hydrophobic materials, have been found to provide a contribution 
to building viscosity, perhaps through supporting the phase structure of 
the product, as well as improving the overall stability of the product. As 
used herein, perfume includes constituents of a perfume which are added 
primarily for their olfactory contribution. 
Most hard surface cleaner products contain some perfume to provide an 
olfactory aesthetic benefit and to cover any "chemical" odor that the 
product may have. The main function of a small fraction of the highly 
volatile, low boiling (having low boiling points), perfume components in 
these perfumes is to improve the fragrance odor of the product itself, 
rather than impacting on the subsequent odor of the surface being cleaned. 
However, some of the less volatile, high boiling perfume ingredients can 
provide a fresh and clean impression to the surfaces, and it is sometimes 
desirable that these ingredients be deposited and present on the dry 
surface. The perfumes are preferably those that are more water-soluble 
and/or volatile to minimize spotting and filming. The perfumes useful 
herein are described in more detail in U.S. Pat. No. 5,108,660, Michael, 
issued Apr. 28, 1992, at col. 8 lines 48 to 68, and col. 9 lines 1 to 68, 
and col. 10 lines 1 to 24, said patent, and especially said specific 
portion, being incorporated by reference. 
Perfume components can be natural products such as essential oils, 
absolutes, resinoids, resins, concretes, etc., and/or synthetic perfume 
components such as hydrocarbons, alcohols, aldehydes, ketones, ethers, 
acids, acetals, ketals, nitriles, etc., including saturated and 
unsaturated compounds, aliphatic, carbocyclic and heterocyclic compounds. 
Examples of such perfume components are: geraniol, geranyl acetate, 
linalool, linalyl acetate, tetrahydrolinalool, citronellol, citronellyl 
acetate, dihydromyrcenol, dihydromyrcenyl acetate, terpineol, terpinyl 
acetate, acetate, 2-phenylethanol, 2-phenylethyl acetate, benzyl alcohol, 
benzyl acetate, benzyl salicylate, benzyl benzoate, styrallyl acetate, 
amyl salicylate, dimenthylbenzylcarbinol, trichloromethylphenycarbinyl 
acetate, p-tert.butylcyclohexyl acetate, isononyl acetate, 
alpha-n-amylcinammic aldehyde, alpha-hexylcinammic aldehyde, 
2-methyl-3-(p-tert.butylphenyl)-propanal, 
2-methyl-3(p-isopropylphenyl)propanal, 3-(p-tert.butylphenyl)propanal, 
tricyclodecenyl acetate, tricyclodecenyl propionate, 
4-(4-hydroxy-4-methylpentyl)-3-cyclohexenecarbaldehyde, 
4-(4-methyl-3-pentenyl)-3cyclohexenecarbaldehyde, 
4-acetoxy-3-pentyl-tetrahhydropyran, methyl dihydrojasmonate, 
2-n-heptylcyclopentanone, 3-methyl-2-pentyl-cyclopentanone, n-decanal, 
n-dodecanal, 9-decenol-1, phenoxyethyl isobutyrate, phenylacetaldehyde 
dimenthyl acetal, phenylacetaldehyde dicetyll acetal, geranonitrile, 
citronellonitrile, cedryl acetate, 3-isocamphyl-cyclohexanol, cedryl 
ether, isolongifolanone, aubepine nitrile, aubepine, heliotropine, 
coumarin, eugenol, vanillin, diphenyl oxide, hydroxycitronellal, ionones, 
methyl ionones, isomethyl ionones, irones, cis-3-hexenol and esters 
thereof, indane musks, tetralin musks, isochroman musks, macrocyclic 
ketones, macrolactone musks, ethylene brassylate, aromatic nitromusk. 
Compositions herein typically comprise from 0.1% to 2% by weight of the 
total composition of a perfume ingredient, or mixtures thereof, preferably 
from 0.1% to 1.0%. In the case of the preferred embodiment containing 
peroxide, the perfumes must be chosen so as to be compatible with the 
oxidant. In a preferred execution, the perfume ingredients are hydrophobic 
and highly volatile, e.g., ingredients having a boiling point of less than 
about 260.degree. C., preferably less than about 255.degree. C.; and more 
preferably less than about 250.degree. C., and a ClogP of at least about 
3, preferably more than about 3.1, and even more preferably more than 
about 3.2. 
The logP of many ingredients has been reported; for example, the Pomona92 
database, available from Daylight Chemical Information Systems, Inc. 
(Daylight CIS), Irvine, Calif., contains many, along with citations to the 
original literature. However, the logp values are most conveniently 
calculated by the "CLOGP" program, also available from Daylight CIS. This 
program also lists experimental logP values when they are available in the 
Pomona92 database. The "calculated logP" (ClogP) is determined by the 
fragment approach of Hansch and Leo (cf., A. Leo, in Comprehensive 
Medicinal Chemistry, Vol. 4, C. Hansch, P. G. Sammens, J. B. Taylor and C. 
A. Ramsden, Eds., p. 295, Pergamon Press, 1990, incorporated herein by 
reference). The fragment approach is based on the chemical structure of 
each ingredient, and takes into account the numbers and types of atoms, 
the atom connectivity, and chemical bonding. The ClogP values, which are 
the most reliable and widely used estimates for this physicochemical 
property, are preferably used instead of the experimental logP values in 
the selection of the principal solvent ingredients which are useful in the 
present invention. Other methods that can be used to compute ClogP 
include, e.g., Crippen's fragmentation method as disclosed in J. Chem. 
Inf. Comput. Sci., 27, 21 (1987); Viswanadhan's fragmentation method as 
disclose in J. Chem. Inf. Comput. Sci., 29, 163 (1989); and Broto's method 
as disclosed in Eur. J. Med. Chem.--Chim. Theor., 19, 71 (1984). 
The compositions herein can comprise a variety of other optional 
ingredients, including further actives and detergent builder, as well as 
mere aesthetical ingredients. In particular the rheology of the 
compositions herein would be suitable for suspending particles in the 
composition, e.g., particles of abrasives. 
Detergent builders that are efficient for hard surface cleaners and have 
reduced filming/streaking characteristics at the critical levels are 
another optional ingredient. Preferred detergent builders are the 
carboxylic acid detergent builders described hereinbefore as part of the 
polycarboxylic acid disclosure, including citric and tartaric acids. 
Tartaric acid improves cleaning and can minimize the problem of 
filming/streaking that usually occurs when detergent builders are added to 
hard surface cleaners. 
The detergent builder is present at levels that provide detergent building, 
and, those that are not part of the acid pH adjustment described 
hereinbefore, are typically present at a level of from about 0.1% to about 
0.3%. more preferably from about 0.2% to about 2%, and most preferably 
from about 0.5 to about 1%. 
The compositions herein can also contain other various adjuncts which are 
known to the art for detergent compositions. Preferably they are not used 
at levels that cause unacceptable filming/streaking. 
Non-limiting examples of other adjuncts are: enzymes such as proteases; 
hydrotropes such as sodium toluene sulfonate, sodium cumene sulfonate and 
potassium xylene sulfonate; thickeners at a level of from about 0.01% to 
about 0.5%, preferably from about 0.05% to about 0.4%; and 
aesthetic-enhancing ingredients such as colorants, providing they do not 
adversely impact on filming/streaking. 
Antibacterial agents, in addition to the cationic ones described 
hereinbefore, can be present, but preferably only at levels below about 
0.5%, preferably below about 0.4%, to avoid filming/streaking problems. 
More hydrophobic antibacterial/germicidal agents, like 
orthobenzyl-para-chlorophenol, are avoided. If present, such materials 
should be kept at levels below about 0.1%. 
Composition Making: 
The compositions herein can be made by mixing together all ingredients. In 
general, a preferred order of addition is to first incorporate water, 
alkyl aryl sulfonate surfactant and organic acid, followed the hydrophobic 
cleaning solvent. Once the solvent is added, pH is adjusted to optimum as 
desired by the formulator. Optional cationic surfactant, peroxide, 
polymer, perfume and dye can then be added. 
As used herein, all numerical values are approximations based upon normal 
variations, all parts, percentages, and ratios are by weight unless 
otherwise specified, and all patents and other publications are 
incorporated herein by reference. 
Soap Scum Cleaning: Standard soiled plates that are used to provide a 
reproducible, standard soiled surface are treated with each product and 
the surface is then wiped with a sponge using a Gardner Straight line 
Washability Machine. The number of strokes required for complete cleaning 
is measured and recorded. The soap scum cleaning index is calculated using 
the following equation: (# strokes for control product/# strokes for 
experimental product) * 100, where the control product is Dow Bath 
Room.RTM. aerosol and the experimental prototypes are compositions 1-8 
disclosed herein. Indices greater than 100 are suggestive of products with 
superior soap scum removal properties. 
Hard Water Cleaning: Four marble chips for each product tested of 
approximate dimensions 3/4".times.3/4".times.1/4" are weighed to four 
decimal places using an analytical balance. The chips are then placed in 
100 ml beakers containing 20 grams of product for a total of 10 minutes. 
The marble chips are then removed, rinsed and allowed to dry. They are 
then re-weighed and the weight lost is computed. Using averages of four 
trials for each product, the hard water removal index is computed as 
follows: (average weight loss of the marble chips immersed in the control 
product/average weight loss of the marble chips immersed in the 
experimental compositions) * 100. 
Soap scum removal and hard water removal test comparisons are made versus a 
commercially available product Dow Bath Room.RTM. aerosol.