Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1995-04-07
1996-11-05
Harriman, Erin M.
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510350, 510345, 510502, 510325, 510338, C11D 332, C11D 342, C11D 304
Patent
active
055717810
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention is related to non-aqueous liquid detergent compositions.
BACKGROUND OF THE INVENTION
Detergent compositions have traditionally contained a number of non-active ingredients. This has resulted in the increase in volume of the compositions and thus the packaging therefore. It is now considered highly desirable to reduce the volume of detergent compositions due to environmental considerations and produce more compact detergent formulations. One means to achieve this is to reduce the amount of non active ingredients such as water in detergent compositions. Reducing and preferably removing non active ingredients, particularly water results in a more compact composition. This in turn results in the need for less packaging material and smaller more manageable containers.
Thus, it is an object of the present invention to formulate non-aqueous detergent compositions which exhibit at least the same cleaning performance of an equivalent aqueous detergent composition.
In order to achieve the required cleaning performance, it is desirable to incorporate surfactants comprising 2 vicinal hydroxyl groups selected from poly hydroxy fatty acid amides, alkyl mono or di(alkoxy) glyceryl ethers, alkane 1,2-diols, alkyl glycerates and N-alkyl-lactobionamides. This is because such surfactants are especially effective with respect to their greasy stain removal performance.
Unfortunately, it has been found that said surfactants comprising 2 vicinal hydroxyl groups are not soluble in non-aqueous compositions and form precipitates.
Thus, it is a further object of the present invention to incorporate these surfactants comprising 2 vicinal hydroxyl groups in non-aqueous compositions without the precipitation of the surfactant in the composition.
In response to this object it has now been found that these surfactants comprising 2 vicinal hydroxyl groups can indeed be solubilized in non-aqueous detergent compositions. This is achieved by the addition of a boron comprising compound such as boric acid.
Without wanting to be bound by theory it is believed that the boron comprising compound interacts with the hydroxyl groups of the surfactant to form complexes. These complexes disrupt the crystallinity of the surfactant and thereby prevent its precipitation.
Another advantage of the present invention is that certain ingredients such as dye transfer inhibition systems which are not compatible with an aqueous environment can be incorporated into non-aqueous liquid detergent compositions. This contributes to overall cleaning performance of liquid detergent compositions.
SUMMARY OF THE INVENTION
The present invention is a non-aqueous liquid detergent composition comprising a surfactant comprising 2 vicinal hydroxyl groups selected from poly hydroxy fatty acid amides, alkyl mono- or di(alkoxy)glyceryl ethers, alkane 1,2-diols, alkyl glycerates and N-alkyl-lactobionamides characterized in that said composition further comprises a boron comprising compound wherein the molar ratio of said surfactant to said boron comprising compound is equal or lower than 2:1.
All amounts, parts and percentages are given as a % weight of the total composition unless otherwise stated.
DETAILED DESCRIPTION OF THE INVENTION
The present invention is a non-aqueous liquid detergent composition comprising a surfactant comprising 2 vicinal hydroxyl groups. Said surfactant is solubilized in the non-aqueous composition by the incorporation of a boron comprising compound.
As used herein the term non aqueous compositions refers to compositions which are substantially non-aqueous and comprise less than 5% water, preferably from 0.1% to 3% water.
The term detergent composition as used herein refers to complete formulations, premixes and liquid anhydrous bases in which other solid ingredients such as builders and bleaches may be suspended.
Surfactants Comprising 2 Vicinal Hydroxyl Groups
According to the present invention the compositions comprise a surfactant comprising 2 vicinal hydroxyl groups and mixtures thereof. Suita
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Allen George W.
Harriman Erin M.
Reed T. David
The Procter & Gamble & Company
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