Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Patent
1996-11-21
1998-11-17
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
510501, 510313, 510372, C11D 332, C11D 3395, C11D 110
Patent
active
058376704
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to detergent compositions having suds suppressing properties. More particularly, the present invention relates to new suds suppressor compounds.
BACKGROUND OF THE INVENTION
Detergent compositions containing high levels of surfactants are known in the art. Surfactants such as anionic, nonionic or cationic are required to aid grease removal and maintain soil suspension from fabrics. More particularly, high levels of anionic surfactants are desirable to provide whiteness maintenance. However, a problem encountered with the use of some high levels of surfactants, especially high foaming anionic surfactants, is the propensity of the surfactant to give high levels of sudsing; this problem being particularly more acute at high temperature.
Traditionally, the suppression of suds has been enabled by the use of high level of suds suppressor such as silicones, fatty acids and twin chain alcohols. However a problem encountered by such use is their expensive cost for few detergency benefits.
Peracid precursors are also known for providing more effective bleaching. Particularly effective are the hydrophobic bleach precursor such as Nonanoyl Oxy Benzene Sulphonate (NOBS), which generates a fatty acid by-product in the wash liquor. However, this is ineffective at controlling suds in high temperatures wash conditions.
Further hydrophobic bleach precursors known in the art are described in U.S. Ser. No. 08/064,563 and EP 0170386.
U.S. Ser. No. 08/064,563 teaches an amidoperoxy compound and its precursors such as (6-octanamidocaproyl) oxybenzenesulphonate, (6-nonamidocaproyl) oxybenzene sulphonate, (6-decanamidocaproyl) oxybenzene sulphonate and mixtures thereof compatible with enzyme which has a bleach cleaning and enzyme cleaning performance. It discloses a detergent composition with nil-LAS surfactant, and teaches that the amidoperoxy compound can be formulated with hydrophilic activators such as TAED. EP 0170386 teaches amidoperoxy compound and their precursors in a peroxygen bleaching composition which provide effective bleaching of textiles over a wide range of temperatures.
It has now been found that amidoperoxy compounds and their precursors such as described in U.S. Ser. No. 08/064,563 and EP 0170386 gives further enhanced suds suppressing properties.
Furthermore, it has also been found that amidoacid compounds have suds suppressing properties.
It is an object of the invention to provide a detergent composition comprising new suds suppressor compounds selected from amidoacid and mixtures of amidoacid and amidoperacid. It is further object of the invention to provide an aqueous wash liquor containing a detersive surfactant comprising a C.sub.10 -C.sub.20 alkyl sulphate, optionally together with builders, detergent adjuncts and a suds suppressor wherein said suds suppressor is formed from a suds suppressor precursor.
SUMMARY OF THE INVENTION
The present invention encompasses a detergent composition formulated with conventional detersive surfactants, optional builders, detergent adjuncts and a suds suppressor, wherein said suds suppressor is an amidoacid of formula ##STR2## or its alkali metal, alkaline earth metal salts or mixture thereof, wherein R.sub.1 is an alkyl, aryl or alkaryl group containing from 1 to 14 carbon atoms, R.sub.2 is an alkylene, arylene or alkarylene group containing from 1 to 14 carbon atoms, R.sub.5 is H or an alkyl, aryl, or alkaryl group containing from 1 to 10 carbon atoms.
DETAILED DESCRIPTION OF THE INVENTION
The present invention contemplates detergent compositions having suds suppressing properties.
An essential component useful for the purpose of the invention is a suds suppressor compound in a detergent composition formulated with conventional detersive surfactants, optional builders, detergent adjuncts, wherein said suds suppressor is selected from amidoacid and mixtures of amidoacid and amidoperacid.
Levels of said surfactants in the detergent composition will typically be from 1% to 80% by weight of the detergent composi
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Bolam Brian M.
Hardee John R.
Lieberman Paul
Robinson Ian S.
Zerby Kim William
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