Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1998-06-12
1999-11-23
Hertzog, Ardith
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510244, 510434, 510471, 510476, 510508, C11D 302, C11D 322, C11D 337
Patent
active
059900660
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to compositions for cleaning hard-surfaces, especially in-house hard-surfaces.
BACKGROUND
A variety of compositions for cleaning hard-surfaces have been disclosed in the art. Much of the focus for such compositions has been on providing outstanding cleaning on a variety of surfaces and soils. For some specialised cleaners, such as glass cleaners, much effort has additionally been devoted to the formulation of so-called "streak-free" products, i.e. products which leave no or little visible residues after use.
The object of the present invention is to formulate hard-surface cleaning compositions which clean and provide gloss to the cleaned surface. That is different from a "streak-free" composition, in that gloss additionally requires improved reflectance of light from the cleaned surface. A variety of products are commercially available for delivering gloss to surfaces, and they are disclosed for instance in U.S. Pat. No. 3,960,575 and U.S. Pat. No. 4,218,250. Both references recommend the use of various silicones for delivering gloss. Such compositions are not fully formulated hard-surface cleaners, so that they do not clean efficiently, and indeed the formulation of silicone in hard-surface cleaners has not shown any gloss benefits. See for instance EP 374 471 which discloses a hard-surface cleaning composition with, amongst other essentials, a silicone for improved resistance to soil redeposition.
We have now found that superior gloss on surfaces can be obtained by formulating liquid compositions comprising a surfactant, a carboxylate-containing polymer and a divalent counterion in a molar ratio of said polymer to said divalent counterion of from 12:1 to 1:32. Indeed, it has been found that said compositions provide excellent cleaning performance on different types of stains including typical greasy stains while delivering improved gloss and less surface streaking/spotting.
An advantage of the present invention is that said compositions may be used to clean in-house hard-surfaces made of a variety of material like glazed and non-glazed ceramic tiles, vinyl, linoleum, melamine, both in diluted and neat conditions.
Another advantage of the process of cleaning hard-surfaces according to the present invention wherein the compositions herein is used in diluted form is that enhanced gloss is provided to the surfaces treated without the need of a subsequent rinsing, thereby facilitating its usage by the consumer.
U.S. Pat. No. 4,784,786 discloses a composition for cleaning glass which can be readily applied to and removed from a soiled glass surface to leave the surface clean and free of streaking and cloudiness. Said compositions comprise amongst other ingredients, surfactants, glycol ether, an anionic polysulfonic acid and an anhydride compound comprising an olefin-maleic anhydride copolymer. No divalent counterions are disclosed.
WO 94/26858 discloses a liquid hard-surface composition (pH 2-8) with nonionic surfactants (1-30%) and anionic polymers having an average molecular weight of less than 1 000 000. Said compositions bring a surprising initial cleaning benefit in addition to the anti-soiling benefit. Indeed, WO 94/26858 discloses that acrylic, methacrylic and maleic anhydride derivatives such as copolymers of styrene with maleic produce a streak-free finish after drying. No divalent counterions are disclosed.
EP-A-658 184 discloses liquid or gel dishwashing detergent compositions containing alkyl amphocarboxylic acid (5%-95%) and magnesium or calcium salts (0.1%-4%), said compositions having a pH in a 10% solution in water at 20.degree. C. of 7 to 10. As optional ingredients said compositions comprise co-surfactants, like nonionic surfactants (5%-95%). No carboxylate-containing polymers are disclosed. Also no hard-surfaces application is disclosed.
EP-A-162 033 discloses heavy-duty liquid detergents comprising proteolytic or amylolytic enzymes, an anionic surfactant (10%-50%), optionally other surfactants like nonionic ethoxylated surfactants (2%-25%),
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Gordon Neil James
Reniers Vincent
Willey Alan David
Aylor Robert B.
Hertzog Ardith
The Procter & Gamble & Company
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