Antimicrobial multi purpose containing a cationic surfactant

Details Antimicrobial multi purpose containing a cationic surfactant Antimicrobial multi purpose containing a cationic surfactant

2000-06-22

2002-05-14

Kopec, Mark (Department: 1751)

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

With halogen, nitrogen, oxygen, or phosphorus containing...

C510S101000, C510S238000, C510S239000, C510S240000, C510S362000, C510S387000, C510S391000, C510S422000, C510S426000, C510S389000, C510S432000, C510S437000, C510S475000, C510S499000, C510S504000, C510S506000

Reexamination Certificate

active

06387865

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to an improved multi purpose liquid cleaner in a form, in particular for cleaning and disinfecting hard surfaces and which is effective in sanitizing surfaces, in removing grease soil in removing lime scale and soap scum and also dries fast leaving the surfaces streak free.
BACKGROUND OF THE INVENTION
Disinfectant composition based on cationic and nonionic are well known. However, these compositions while very efficient in disinfecting surfaces, generally do not remove grease and oil as desired; hence, leaving residues and streaks on surfaces. Addition of an efficient anionic surfactant cleaner, to the cationic surfactant, either creates instability problems or deactivates the disinfectant behavior of the cationic. Anionic and nonionic mixtures have a good grease removal properties, but do not perform at all to sanitize the surface being cleaned.
Acidic composition to remove lime scale also exist. Usually they provide some disinfecting behavior and some of them are highly effective in removing lime scale but they are not performing in grease removal and leave streaks and residues.
SUMMARY OF THE INVENTION
In one aspect, the invention generally provides a stable, clear multi purpose, hard surface cleaning composition having a pH of about 2.5 to 4.5 which is especially effective in disinfecting the surface being cleaned and in the removal of lime scale and greasy oil. These compositions also have a fast drying out time and does not leave streaks on the surface being cleaned. The compositions include approximately, on a weight basis:
0.1% to 8% of an anionic sulfonate surfactant;
0.1% to 10% of a nonionic surfactant formed from the condensation product of a C
9
-C
18
alkanol, ethylene oxide and propylene oxide;
from 0 to 8%, more preferably 0.5% to 6% of at least one nonionic surfactant formed from the condensation product of a C
9
-C
18
alkanol and ethylene oxide;
from 0.1 to 10% of at least one disinfecting agent;
0 to 10% of at least one water soluble glycol ether solvent;
0.1% to 2.5% of a fatty acid;
0 to 10%, more preferably 0.1% to 6% of an ethoxylated alkyl ester nonionic surfactant;
0% to 8%, more preferably 0.1% to 6% of an ethoxylated alcohol;
0.05% to 3.0%, more preferably 0.1% to 1% of a perfume, water insoluble organic compound or essential oil; and
the balance being water.
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a stable hard surface cleaning composition comprising approximately by weight:
0.1% to 8% of an anionic surfactant;
0.1% to 10% of a nonionic surfactant formed from the condensation product of a C
9
-C
18
alkanol, ethylene oxide and propylene oxide;
0 to 8%, more preferably 0.5% to 6% of at least one nonionic surfactant formed from the condensation product of a C
9
-C
18
alkanol and ethylene oxide;
0 to 8%, more preferably 0.1% to 6% of an ethoxylated alcohol;
0.1% to 10% of at least one disinfecting agent such as a cationic surfactant,
0.1% to 2.5% of a fatty acid,
0 to 10%, more preferably 0.1% to 6% of an ethoxylated alkyl ester nonionic surfactant;
0 to 10% of at least one water soluble glycol solvent;
0.05% to 3.0%, more preferably 0.1% to 1% of a water insoluble organic compound, essential oil, or a perfume, and
the balance being water, wherein the composition does not contain a pyrrolidone compound or a C
4
-C
12
alcohol ester of a sulfosuccinic acid, an amphoteric surfactant, a dialkanol amine, trialkanol amine or an alkali metal hydroxide.
Excluded from the instant composition are ethoxylated glycerol type compounds, alkyl and/or alkenyl oligoglycoside of formula:
in which R
1
represents a linear or branched alkyl or alkenyl group with 8 to 22 carbon atoms, [G] represents a glycose unit with 5 or 6 carbon atoms, preferably a glucose unit, and p represents a number from 1 to 10, and an alkyl ether of formula:
in which R
2
represents a linear or branched aliphatic alkyl and/or alkenyl group with 8 to 18, preferably 8 to 14 carbon atoms, x represents 0 or a number of up to 3, preferably up to 2, and y represents a number from 1 to 15, preferably 2 to 12, especially 2.5 to 10.
As used herein and in the appended claims the term “perfume” is used in its ordinary sense to refer to and include any non-water soluble fragrant substance or mixture of substances including natural (i.e., obtained by extraction of flower, herb, blossom or plant), artificial (i.e., mixture of natural oils or oil constituents) and synthetically produced substance) odoriferous substances. Typically, perfumes are complex mixtures of blends of various organic compounds such as alcohols, aldehydes, ethers, aromatic compounds and varying amounts of essential oils (e.g., terpenes) such as from 0% to 80%, usually from 10% to 70% by weight, the essential oils themselves being volatile odoriferous compounds and also serving to dissolve the other components of the perfume.
In the present invention the precise composition of the perfume is of no particular consequence to cleaning performance so long as it meets the criteria of water immiscibility and having a pleasing odor. Naturally, of course, especially for cleaning compositions intended for use in the home, the perfume, as well as all other ingredients, should be cosmetically acceptable, i.e., non-toxic, hypoallergenic, etc.
The water insoluble organic compound, essential oil or perfume is present in the composition in an amount of from 0.05% to 3% by weight, preferably from 0.1% to 1% by weight.
Furthermore, although superior grease removal performance will be achieved for perfume compositions not containing any terpene solvents, it is apparently difficult for perfumers to formulate sufficiently inexpensive perfume compositions for products of this type (i.e., very cost sensitive consumer-type products) which includes less than 20%, usually less than 30%, of such terpene solvents.
The water insoluble saturated or unsaturated organic compound is selected from the group consisting of water insoluble hydrocarbons containing a cycloalkyl group having 5 to 10 carbon atoms, wherein the alkyl or cycloalkyl group can be saturated or unsaturated and the cycloalkyl group can have one or more saturated or unsaturated alkyl groups having 1 to 20 carbon atoms affixed to the alkyl or cycloalkyl group and one or more halogens, alcohols, nitro or ester group substituted on the cycloalkyl group or alkyl group; aromatic hydrocarbons; water insoluble ethers; water insoluble carboxylic acids, water insoluble alcohols, water insoluble amines, water insoluble esters, nitropropane, 2,5dimethylhydrofuran, 2-ethyl2-methyl 1,3dioxolane, 3-ethyl 4-propyl tetrahydropyran, N-isopropyl morpholine, alpha-methyl benzyldimethylamine, methyl chloraform and methyl perchlorapropane, and mixtures thereof. Typical hydrocarbons are cyclohexyl-1 decane, methyl-3 cyclohexyl-9 nonane, methyl-3 cyclohexyl-6 nononane, dimethyl cycloheplane, trimethyl cyclopentane, ethyl-2 isopropyl-4 cyclohexane. Typical aromatic hydrocarbons are bromotoluene, diethyl benzene, cyclohexyl bromoxylene, ethyl-3 pentyl-4 toluene, tetrahydronaphthalene, nitrobenzene, and methyl naphthalene. Typical water insoluble esters are benzyl acetate, dicyclopentadienylacetate, isononyl acetate, isobornyl acetate and isobutyl isobutyrate. Typical water insoluble ethers are di(alphamethyl benzyl) ether, and diphenyl ether. A typical alcohol is phenoxyethanol. A typical water insoluble nitro derivative is nitro propane.
Suitable essential oils are selected from the group consisting of: Anethole 20/21 natural, Aniseed oil china star, Aniseed oil globe brand, Balsam (Peru), Basil oil (India), Black pepper oil, Black pepper oleoresin 40/20, Bois de Rose (Brazil) FOB, Borneol Flakes (China), Camphor oil, White, Camphor powder synthetic technical, Cananga oil (Java), Cardamom oil, Cassia oil (China), Cedarwood oil (China) BP, Cinnamon bark oil, Cinnamon leaf oil, Citronella oil, Clove bud oil, Clove leaf, Coriander (Russia), Coumarin 69° C. (China), Cyclamen Aldehyde, Diphenyl oxide, Ethyl vanilin, Eucalyptol, Eucalyptus oi

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