Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Specific organic component
Reexamination Certificate
1999-08-16
2002-11-19
Gupta, Yogendra N. (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Specific organic component
C510S421000, C510S476000, C134S025200, C134S042000
Reexamination Certificate
active
06482793
ABSTRACT:
TECHNICAL FIELD
The present invention relates to liquid compositions for cleaning hard-surfaces.
BACKGROUND OF THE INVENTION
Liquid 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. However, such compositions are not fully satisfactory from a consumer viewpoint especially regarding the soil release properties imparted to the hard-surfaces treated therewith. Indeed, consumers are looking for liquid cleaning compositions, whereby next-time (subsequent) cleaning is more facilitated.
The object of the present invention is to formulate a liquid cleaning composition for removal of various soils from hard-surfaces, that will facilitate the next-time cleaning operation.
It has now been found that the next-time cleaning performance is improved when a hard-surface has first been treated with a liquid composition comprising particular antiresoiling ingredients, namely a first antiresoiling ingredient selected from the group consisting of polyalkoxylene glycol, monocapped polyalkoxylene glycol, dicapped polyalkoxylene glycol and a mixture thereof, as defined herein, together with a second antiresoiling ingredient, i.e., vinylpyrrolidone homopolymer or copolymer, as defined herein. In other words, the compositions of the present invention allow improved next-time cleaning performance at low total level of antiresoiling ingredients, as compared to the same compositions comprising only one of said antiresoiling ingredients according to the present invention or another antiresoiling polymeric ingredients like for example poly (trimethyl aminoethyl) methacrylate.
In a preferred embodiment, the compositions of the present invention comprise a dicapped polyakoxylene glycol, as the first antiresoiling ingredient, together with a vinylpyrrolidone homopolymer or copolymer. Indeed, it has surprisingly been found that the use of a dicapped polyalkoxylene glycol, as defined herein, together with such a vinylpyrrolidone homopolymer or copolymer, results in a synergistic effect on next-time cleaning performance.
An advantage of the present invention is that the next-time cleaning performance is obtained with the compositions according to the present invention on various types of stains/soils including typical greasy stains like kitchen grease and other tough stains such as burnt/sticky food residues typically found in kitchens, while delivering good gloss to said surfaces.
Another advantage of the present invention is that said compositions may be used to clean hard-surfaces made of a variety of materials like glazed and non-glazed ceramic tiles, vinyl, no-wax vinyl, linoleum, melamine, glass, plastics, plastified wood, both in neat and diluted conditions, e.g., up to a dilution level of 1:400 (composition:water).
Another advantage of the liquid compositions of the present invention is that not only next-time cleaning performance is improved, but that also good first time cleaning performance is delivered.
Another advantage associated to the compositions according to the present invention comprising a first antiresoiling ingredient selected from the group consisting of polyalkoxylene glycol, monocapped polyalkoxylene glycol, dicapped polyalkoxylene glycol and a mixture thereof, together with a second antiresoiling ingredient, i.e., vinylpyrrolidone homopolymer or copolymer, is that they have the ability to provide good shine to the surface they have cleaned. Indeed, less formation of watermarks and/or even limescale deposits are observed on a surface having been cleaned with the compositions of the present invention and later comes in contact with water, for example, during a rinse operation. Advantageously, the shine benefit delivered to the surface even persists after several cycles of rinsing, thus providing long lasting protection against formation of watermarks and/or even limescale deposits on the surface, and hence long lasting shiny surfaces.
Yet a further advantage of the compositions of the present invention is that faster drying is obtained on the surfaces that have been cleaned therewith, this both when used diluted or when used neat. In other words, the housewife will have the advantage to shorten the total time of the cleaning operation of hard-surfaces and diminish the inconvenience of having wet floors in her home.
BACKGROUND ART
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 polymers being free of quaternary nitrogen groups. 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 liquid compositions comprising a combination of a polyalkoxylene glycol, a mono- or dicapped polyalkoxylene glycol, together with a vinylpyrrolidone homopolymer or copolymer are disclosed.
EP-A-374 471 discloses liquid hard-surface cleaning compositions which are formulated to leave on the surface treated a protective barrier layer which serves to protect the surface against further soil deposition. These compositions comprise a polyethylene glycol alkylphenyl ether, lecithin and an aminofunctional polydimethylsiloxane copolymer as a protective barrier compound and one or more glycols. No liquid compositions comprising a combination of a polyalkoxylene glycol, a mono- or dicapped polyalkoxylene glycol together with a vinylpyrrolidone homopolymer or copolymer are disclosed.
EP-A-635 567 discloses liquid compositions for cleaning solid surfaces comprising a cleaning agent capable of being deposited on the surface during cleaning and of forming a dried layer adhered to the surface, said layer having a cohesive strength such that at least outermost surface portion of the layer is removable by further washing. Polyvinylpyrrolidone is disclosed. However, no liquid compositions comprising a combination of a polyalkoxylene glycol, a mono- or dicapped polyalkoxylene glycol together with a vinylpyrrolidone homopolymer or copolymer according to the present invention are disclosed. EP-A-518 401 discloses acidic compositions (pH=1-6) comprising an alkyl sulphate anionic surfactant derived from natural coconut oil and a capped nonionic surfactant according to formula R
1
—O—((R
2
O)
n
(R
3
O)
m
)—R
4
wherein R
1
is a C
1
-C
25
alkyl or alkenyl group, R
2
is a C
2
-C
4
aliphatic hydrocarbon chain, R
3
is a methyl or ethyl monosubstituted C
2
-C
4
aliphatic hydrocarbon chain, R
4
is a C
1
-C
25
alkyl or alkenyl or carboxyl chain or H, n is an integer of from 1 to 10, m is an integer of from 0 to 20, or mixtures thereof. No vinylpyrrolidone homopolymers or copolymers according to the present invention are disclosed.
SUMMARY OF THE INVENTION
The present invention encompasses a liquid hard-surface cleaning composition comprising from 0.001% to 20% by weight of the total composition of an antiresoiling ingredient selected from the group consisting of:
a polyalkoxylene glycol according to the formula:
H—O—(CH
2
—CHR
2
O)
n
—H,
a monocapped polyalkoxylene glycol of the formula:
R
1
—O—(CH
2
—CHR
2
O)
n
—H,
a dicapped polyalkoxylene glycol of the formula:
R
1
—O—(CH
2
—CHR
2
O)
n
—R
3
,
and a mixture thereof, wherein the substituents R
1
and R
3
each independently are substituted or unsubstituted, saturated or unsaturated, linear or branched hydrocarbon chains having from 1 to 30 carbon atoms, or amino bearing linear or branched, substituted or unsubstituted hydrocarbon chains having from 1 to 30 carbon atoms, R
2
is hydrogen or a linear or branched hydrocarbon chain having from 1 to 30 carbon atoms, and wherein n is an integer greater than 0, and from 0.001% to 20% by weight of the total composition of vinylpyrrolidone homopolymer or copolymer.
The present invention also encompasses a process of cleaning hard-surfa
Evers Marc François Theophile
Gordon Neil James
Camp Jason J.
Mruk Brian P.
The Procter & Gamble & Company
Waugh Kevin L.
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