Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – With oxygen or halogen containing chemical bleach or oxidant...
Patent
1995-06-05
1996-07-16
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
With oxygen or halogen containing chemical bleach or oxidant...
510394, 510419, 510505, 510535, 510303, 510325, 510280, 510307, 510238, 510422, 510506, C11D 1825, C11D 166, C11D 172, C11D 1722
Patent
active
055364381
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to the field of detergent or cleaning compositions. The compositions of the present invention are multi-purpose cleaning compositions which are suitable for use as hard-surface cleaners, carpet cleaners as well as in laundry applications.
BACKGROUND
A wide variety of cleaning compositions have been described in the art. Typically, cleaning compositions can be divided into hard surface cleaning compositions and laundry cleaning compositions. Cleaning compositions of these two types are traditionally very different in formulation and are sold as different products with different marketing concepts. These differences impose on the consumer to have to purchase and use at least two different products. Furthermore, compositions of the two types above, especially hard surface cleaners, can be divided into sub-typos. Indeed, many different kinds of hard-surface cleaners are available, for instance bathroom cleaners, kitchen cleaners or floor cleaners.
This variety in formulation is rendered necessary by the difference in nature between the soils which can be found on laundry and on various surfaces in kitchens, floors including carpets and bathroom. For instance, kitchen soils comprise mainly edible oils, while bathroom soils comprise mainly sebum and soap scum, also limescale; floor soils comprise mainly particulate soils and laundry may have many different soils and stains.
It is the object of the present invention to formulate a multi-purpose liquid cleaner which can be satisfactorily used on various surfaces as well as in laundry applications, to clean various soils and stains. The compositions according to the present invention should also be able to perform in a variety of conditions, i.e. in hard and soft water. They should also provide satisfactory shine performance and surface safety when used as hard surface cleaners.
It has now been found that this object can be simply and efficiently met by formulating a cleaning composition which comprises a specific nonionic surfactant system in a mildly acidic range. Indeed it has been found that combining nonionic surfactants belonging to four different HLB (hydrophilic-lipophilic balance) classes provides a cleaning composition which exhibits a great flexibility in the soils it may clean. Furthermore, it has been found that said surfactants of said four clams act in synergy in cleaning most type of soils. Furthermore still, it has been found that adding hydrogen peroxide to this nonionic surfactant system delivers stronger cleaning performance especially in laundry applications.
SUMMARY OF THE INVENTION
The present invention is an aqueous cleaning composition having a pH of from 0.5 to 6, said composition comprising from 2% to 40% by weight of the total composition of a nonionic surfactant system, whereby said nonionic surfactant system comprises:
Highly preferred compositions herein further comprise hydrogen peroxide.
DETAILED DESCRIPTION OF THE INVENTION
The compositions according to the present invention are aqueous liquid cleaning compositions. Said aqueous compositions have a pH as is of from 0.5 to 6, preferably I to 5, most preferably from 2 to 4.5. The pH of the compositions can be adjusted by using organic or inorganic acids, or alkalinizing agents.
The compositions according to the present invention further comprise a specific nonionic surfactant system comprising at least four nonionic surfactants. Said nonionic surfactant system is efficient in cleaning a variety of different soils, and significant cooperation has been observed between the four different types of surfactants.
The nonionic surfactant system herein comprises a mixture of at least four different nonionic surfactants, each of which lies in a specified HLB (hydrophilic-lipophilic balance) range. The compositions of the present invention thus clean a variety of soils from particulate to nonparticulate soils, from hydrophilic to hydrophobic soils.
Accordingly, the nonionic surfactant system according to the present invention comprises: t
REFERENCES:
patent: H1468 (1995-08-01), Costa et al.
patent: 4332692 (1982-06-01), Payne et al.
patent: 4557898 (1985-12-01), Greene et al.
patent: 4781923 (1988-11-01), Pellico
patent: 4968450 (1990-11-01), Kamegai et al.
patent: 5154850 (1992-10-01), Deguchi et al.
patent: 5318728 (1994-06-01), Surukzdis et al.
patent: 5336432 (1994-08-01), Petchul et al.
Industrial Chemical Thesaurus, Second Edition 1992 (no mo. available), vol. 2: Tradename to Chemical Cross Reference, definitions of Dobanol 23, Dobanol 25, Dobanol 91 and Lutensol AT surfactants.
McCutcheon's Emulsifiers & Detergents, International Edition 1993 (no mo. available), definitions of Lutensol A and Lutensol AO surfactants.
Cardola Sergio
Rapisarda Dario
Scialla Stefano
Trani Marina
Aylor Robert B.
Hertzog Ardith
Lieberman Paul
Reed T. David
The Procter & Gamble & Company
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