Drug – bio-affecting and body treating compositions – Inorganic active ingredient containing – Peroxide or compositions of or releasing gaseous oxygen or...
Patent
1999-05-13
2000-08-01
Raymond, Richard L.
Drug, bio-affecting and body treating compositions
Inorganic active ingredient containing
Peroxide or compositions of or releasing gaseous oxygen or...
424 62, 424613, A01N 3312, A01N 3716
Patent
active
060963492
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to sprayable liquid compositions suitable for disinfecting animate surfaces, for example, human skin, mouth, teeth, or inanimate surfaces including hard surfaces, walls, tiles, table tops, bathroom surfaces, kitchen surfaces, as well as fabrics, clothes, carpets.
BACKGROUND
Antimicrobial compositions include materials which have the ability to disinfect. It is generally recognised that a disinfecting material greatly reduces or even eliminates the microorganisms existing on a surface. Compositions based on halogen containing compounds like hypochlorite, or on quatemary compounds, have been extensively described in the art for disinfecting purpose. Compositions comprising peroxygen bleaches are also known as disinfecting compositions.
Representative of the prior art is, for example, WO88/00795 which discloses liquid disinfecting compositions comprising a compound selected from the group of organic acids, perborates. peracids and their salts, together with other antimicrobial compounds like a quaternary ammonium salt and an essential oil.
However, such disinfecting compositions are not fully satisfactory for the consumer who is looking for an effective disinfecting composition which can be easily used in various disinfecting applications, for example, in a spray form, while providing effective disinfecting performance even upon prolonged storage periods.
Indeed, a drawback associated with liquid compositions comprising a bleaching agent and an essential oil is that said liquid compositions tend to be chemically unstable upon prolonged storage periods. Indeed, traditional essential oils are usually made by a blend of components including terpenes, esters, aromatic components, chetones, aldehydes and the like. Said essential oils are sensitive to peroxygen bleaches. In other words, said essential oils show significant instability in presence of peroxygen bleaches and tend to decompose/oxidise said peroxygen bleaches, therefore leading to a lowering of the total level of available oxygen in a composition comprising a peroxygen bleach with consequent chemical stability issues and disinfecting performance issues upon long storage periods.
It is therefore an object of the present invention to provide a liquid disinfecting composition comprising a peroxygen bleach which is chemically stable for prolonged storage periods while delivering effective disinfecting performance on clean surfaces, even when used upon highly diluted conditions, and which is convenient and safe to use by the user.
It has now been found that this can be achieved by providing a sprayable stable liquid disinfecting composition comprising a peroxygen bleach, an antimicrobial active of essential oil, and a shear thinning polymeric thickener. More particularly, it has been found that the liquid peroxygen bleach-containing compositions of the present invention comprising said antimicrobial active of essential oil, and said shear thinning polymeric thickener, exhibit improved chemical stability upon prolonged storage periods, as compared to the same compositions comprising an antimicrobial essential oil instead of said antimicrobial active of essential oil, while providing effective disinfecting performance on clean surfaces, i.e., surfaces being free of any organic and/or inorganic soils, even at high dilution levels, i.e., up to dilution levels of from 1:100 (composition:water).
Furthermore, it has been found that the sprayable liquid peroxygen bleach-containing compositions of the present invention comprising said antimicrobial active of essential oil and said shear thinning polymeric thickener, exhibit improved safety upon usage, as compared to the same compositions without said shear thinning polymeric thickener, while providing effective disinfecting performance on clean surfaces and excellent chemical stability upon prolonged storage periods. Indeed, an advantage of the liquid compositions of the present invention is that the inhalation by the user of said compositions is prevented or diminish
Petri Marco
Trani Marina
Raymond Richard L.
The Procter & Gamble & Company
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