Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Heterogeneous arrangement
Reexamination Certificate
2002-09-27
2004-06-22
Ogden, Necholus (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Heterogeneous arrangement
C510S180000, C510S182000, C510S238000, C510S218000, C510S463000, C512S001000, C512S003000, C424S065000
Reexamination Certificate
active
06753305
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a process for disinfecting various hard-surfaces like walls, tiles, table tops, glass, bathroom surfaces, kitchen surfaces as well as dishes.
BACKGROUND
Hard-surfaces, like walls, tiles, table tops, glass as well as dishes, are prone to contamination with micro-organisms like bacteria, including Gram positive bacterial strains and Gram negative bacterial strains, viruses, and other more resistant micro-organisms like fungi. Hard-surfaces prone to contamination with micro-organisms can be found in various locations like: private households, for example, in kitchens and bathrooms; hospitals; restaurants; hotels; means of public transport; public bathes and pools; commercial and public laundries and the like.
Compositions for disinfecting hard-surfaces are well known in the art. Indeed, disinfecting compositions based on known disinfecting materials like bleach, quaternary ammonium compounds, essential oils or the like, provide acceptable disinfecting properties. For example, WO 97/25404 and WO 97/25106 describe disinfecting compositions based on essential oils and/or actives thereof in combination with hydrogen peroxide bleach.
Indeed, essential oils and/or actives thereof are known antimicrobial agents. Moreover, essential oils and/or actives thereof are, due to their availability from natural sources, preferable ingredients in hard-surface disinfectants. Indeed, it is well known from consumer research that consumers are looking for products comprising natural ingredients. However, it is well known that the overall disinfecting performance of the disinfecting compositions comprising essential oils and/or actives thereof used to disinfect hard-surfaces may still be further improved.
It is therefore an objective of the present invention to provide a process of disinfecting a hard-surface with a composition that delivers good overall disinfecting performance. In particular, it is an objective of the present invention to provide a process of disinfecting a hard-surface with a composition that delivers good disinfecting performance on Gram positive bacterial strains, like
Staphylococcus aureus
and Gram negative bacterial strains, like
Pseudomonas aeruginosa
, as well as on viruses and more resistant micro-organisms like fungi, under acidic, neutral and alkaline pH conditions.
It has now been found that the above objectives can be met by a process of disinfecting a hard-surface with a composition comprising cinnamon oil and/or an active thereof.
An advantage of the process as described herein is that said process provides an easy and fast way of disinfecting a hard-surface.
Another advantage of the present invention is that disinfection is provided on a broad range of bacterial strains including Gram positive bacterial strains, like
Staphylococcus aureus
, Gram negative bacterial strains, like
Pseudomonas aeruginosa
, viruses and more resistant micro-organisms like fungi, under acidic, neutral and alkaline pH conditions.
It is yet another advantage of the invention to provide a process of disinfecting a hard-surface with a composition that is mild to the skin as well as safe to the hard-surfaces treated therewith.
Another advantage of the present invention is that cinnamon oil and actives thereof are ingredients coming from natural sources and/or are present in nature.
BACKGROUND ART
The following documents are representative of the prior art available in the field of disinfecting compositions used on various surfaces.
EP 0 252 278 describes liquid mucous membrane disinfectants based on alcohol and hydrogen peroxide containing one or more carboxylic acids, nitrogen-containing organic compounds from the group of specific oligohexamethyl biguanides, and optionally microbiocidically active phenolic compounds as well as water.
WO 97/25404 and WO 97/25106 describe liquid disinfectant preparations for use on hard-surfaces comprising an essential oil or an active thereof.
SUMMARY OF THE INVENTION
The present invention encompasses a process of disinfecting hard-surfaces with a composition comprising cinnamon oil and/or an active thereof.
In a preferred embodiment, said composition comprises cinnamon acid, cinnamyl alcohol and/or cinnamyl aldehyde as an active of cinnamon oil.
In another preferred embodiment said composition is a liquid, preferably liquid aqueous, composition.
In another preferred embodiment said composition further comprises another essential oil and/or active thereof on top of the cinnamon oil and/or an active thereof, preferably an essential oil and/or active thereof selected from the group consisting of thymol and geraniol and mixtures thereof.
DETAILED DESCRIPTION OF THE INVENTION
Process of Disinfecting a Hard-surface
The present invention encompasses a process of disinfecting a hard-surface with a composition, as defined herein, said process preferably comprising the step of applying said composition onto said surface.
The hard-surfaces to treat with the compositions herein are those typically found in houses like kitchens, bathrooms, e.g., tiles, walls, floors, chrome, glass, smooth vinyl, any plastic, plastified wood, table top, sinks, cooker tops, dishes, sanitary fittings such as sinks, showers, shower curtains, wash basins, WCs and the like. Hard-surfaces also include household appliances including, but not limited to, refrigerators, freezers, washing machines, automatic dryers, ovens, microwave ovens, dishwashers and so on. Furthermore, hard-surfaces found in hospitals, restaurants, hotels, means of public transport, public bathes and pools, commercial and public laundries and the like are included herein.
In such a process a composition, as described herein, needs to be contacted with the hard-surfaces to be disinfected. Thus, the present invention also encompasses a process of disinfecting a hard-surface with a composition as described herein, wherein said process comprises the step of applying said composition to said hard-surface, preferably only infected portions thereof and optionally rinsing said hard-surface.
In the process of disinfecting hard-surfaces according to the present invention the compositions as described herein may be in liquid form and may be applied to the surface to be disinfected in their neat form or in their diluted form typically at a dilution level up to 100 times their weight of a suitable solvent, preferably water, preferably into 80 to 2 times their weight of a suitable solvent, preferably water, and more preferably 60 to 10 times their weight of a suitable solvent, preferably water.
In a preferred embodiment wherein the composition herein is incorporated onto a wipe, the process of disinfecting a hard-surface comprises the steps of contacting said wipe incorporation a composition as described herein with said hard-surface and preferably wiping said hard-surface with said wipe.
The Composition
The compositions of the present invention are preferably formulated as liquid compositions. Preferred compositions herein are aqueous compositions and therefore, preferably comprise water, more preferably in an amount of from 60% to 98%, even more preferably of from 80% to 97% and most preferably 85% to 97% by weight of the total composition.
The pH of the liquid compositions according to the present invention may typically be from 1 to 14.
In a preferred embodiment according to the present invention, the liquid compositions according to the present invention have an alkaline pH. More preferably, the pH of the liquid compositions herein, as is measured at 25° C., is at least, with increasing preference in the order given, 7.1, 7.5, 8.0, 8.5, 9.0, 9.25, 9.5 or 9.75. Independently, the pH of the liquid compositions herein, as is measured at 25° C., preferably is no more than, with increasing preference in the order given, 14.0, 13.5, 13.0, 12.5, 12.0, 11.5, 11.0, 10.75, 10.5, 10.25 or 10. Accordingly, the compositions herein may further comprise an acid, alkaline material and/or a buffering system to adjust and maintain pH as appropriate.
In another preferred embodiment, the liquid composit
Caselli Alberto
Raso Floriana
Fayette Thibault
Miller Steven W.
Ogden Necholus
William Zerby Kim
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