Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Patent
1997-08-06
1999-01-12
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
510119, 510129, 510130, 252407, C11D 320, C11D 350, C11D 960, C11D 1006
Patent
active
058589589
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD AND PRIOR ART
The present invention relates to perfumery and cosmetics. It concerns, more particularly, the use of 4-tert-butyl-1-cyclohexanol as antioxidant.
4-Tert-butyl-1-cyclohexanol is a known perfuming ingredient but which is not used very currently in perfumery as a result of its not too elegant camphoraceous note. It develops in fact an odor of the woody-patchouli, camphoraceous type. It is also known that this compound is very stable even in very aggressive media characteristic of soaps, detergents or bleaching products. However, to our knowledge, it has never been suggested to use this compound as a stabilising agent against oxidation in cleaning or cosmetic products.
DESCRIPTION OF THE INVENTION
We have now discovered that 4-tert-butyl-1-cyclohexanol turns out to be very efficient as an antioxidant, namely when used in detergent and cosmetic media containing fat materials which are easily oxidised upon exposure to air and/or light and the oxidation products of which develop unpleasant odors, particularly of the rancid type.
It is known, for example, that certain types of soaps develop rancid, piquant and fruity odors after only a few weeks of storage in air. Now, we have observed that occurrence of such malodors could be entirely prevented, or at least prevented for far longer storage periods, if 4-tert-butyl-1-cyclohexanol was added to these soaps.
Similar effects were observed in shampoos or yet in bath or shower gels.
In a general manner, this compound reveals itself as an efficient stabilising agent against oxidation in all the cosmetic and skin or hair cleansing products comprising materials which are susceptible of being oxidised by air and/or light exposure and, as a result, of developing unpleasant odors. In this context, one can cite, in addition to the consumer products mentioned above, cosmetic creams and milks.
It has also been established that this compound could be useful as an anti-oxidant in other cleaning or detergent products, particularly general use detergents or all-purpose cleaners for hard surfaces, dishwashing products and other, whenever they comprise fat materials susceptible of being oxidised upon exposure to air or light.
To achieve the effects desired according to the invention, 4-tert-butyl-1-cyclohexanol can be added to the soap, shampoo or other type base either on its own or in admixture with other ingredients of current use in perfumery, namely usual perfuming co-ingredients, solvents or adjuvants. A more detailed description of the latter is here superfluous. Their nature will depend namely of the perfuming effect one wants to achieve, as well as on the type of product to be perfumed, and the skilled person is able to choose such ingredients on the basis of her general knowledge in the art and taking inspiration from reference textbooks such as the book of S. Arctander, Perfume and Flavor Chemicals, Montclair, N.J. (1969) or more recent versions thereof, amongst others.
The concentrations in which the above-mentioned compound can be added to the various products to impart its anti-oxidation effect vary in a wide range of values. Beneficial effects can already be observed at concentrations of the order of 0.005 or 0.01% by weight, relative to the weight of the finished product, i.e. soap, shampoo, shower gel or other. However, it is preferred according to the invention to use this compound in concentrations of, or above, 0.05% by weight, relative to the weight of the finished product. More preferably, such products will contain in the order of 0.05 to 0.5% by weight of 4-tert-butyl-1-cyclohexanol.
As is apparent from the examples presented further on, 4-tert-butyl-1-cyclohexanol reveals itself as a more efficient antioxidant than other agents currently used for this purpose, such as BHT (2,6-di-tert-butyl-p-cresol; origin: Bayer), .alpha.- or .gamma.-tocopherol, ascorbic, citric or tartaric acids and their salts or esters, or yet any mixtures of two or more of these products. It goes without saying that 4-tert-butyl-1-cyclohexanol can also be
REFERENCES:
patent: 5107038 (1992-04-01), Weinstein
patent: 5160498 (1992-11-01), Weinstein
patent: 5668094 (1997-09-01), Bacon et al.
patent: 5670475 (1997-09-01), Trinh et al.
Firmenich SA
Lieberman Paul
Petruncio John M.
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