MXPA01002068A - Liquid neutral to alkaline hard-surface cleaning composition - Google Patents

Abstract

Liquid cleaning compositions having a pH of from 7 to 14, suitable for cleaning hard-surfaces, comprise a homo or copolymer of vinylpyrrolidone, a polysaccharide polymer and a nonionic surfactant, with the proviso that said compositions do not comprise an amphoteric surfactant.

Description

LIQUID COMPOSITION OF NEUTRAL TO ALKALINE FOR CLEANING OF HARD SURFACES TECHNICAL FIELD The present invention relates to liquid compositions for cleaning hard surfaces.

BACKGROUND OF THE INVENTION Liquid compositions for cleaning hard surfaces have already been described in the art. Liquid compositions for cleaning hard surfaces can be formulated in a variety of ways. Liquid compositions for cleaning hard surfaces, having a neutral to alkaline pH, comprise, among other ingredients, a surfactant or a surfactant system which are well known in the art. Said compositions show good cleaning on a variety of soils and surfaces. However, consumers look for liquid cleaning compositions that would not only clean a hard surface in a primary or "first time" cleaning operation but also return to the hard surface less prone to dirt adhesion and therefore facilitate the operation secondary cleaning or "next time" (ie an operation of subsequent cleaning following a primary or "first-time" cleaning operation). Hard surface cleaning compositions that have a "next time" cleaning benefit are known in the art. Said compositions may comprise, among other ingredients, polymeric material, for example, hard surface cleaning compositions comprising a polyvinylpyrrolidone (EP-A-0 635 567). The ability of said compositions to convert to a hard surface treated with it less prone to dirt adhesion, is still not satisfactory and can be further improved. Therefore, the object of the present invention is to formulate a liquid cleaning composition for removal of various soils from various hard surfaces, for example, hard surfaces found in houses, which have a benefit / cleaning performance of "next time". "Improved compared to other hard surface cleaners. Additionally, it is also desirable that such liquid compositions for cleaning hard surfaces should have the ability to provide good gloss to the treated surfaces. However, the surface brightness is often compromised because when the water comes into contact with hard surfaces (for example, in the rinsing operation) it has the tendency to form drops on the surface. The presence of drops compared to a thin film that extends evenly over the surface or runs on the surface, results in the loss of brightness In addition, as the water evaporates from the droplets, water-soluble inorganic salts poorly such as calcium / magnesium carbonate and / or phosphate salts precipitate with consequent formation of watermarks on the surface and finally Limestone incrustation is deposited, resulting in an unacceptable mark on the surface. Therefore, a further object of the present invention is to improve the formation of a uniform thin film of water and reduce the formation of watermarks and / or limescale deposits on a hard surface which has been treated with a liquid composition for cleaning of hard surfaces and therefore to provide good shine to this surface. Additionally, it is also desirable that good gloss persists after several rinse cycles and therefore a durable shine to the surface is provided. It has been found that the above objects are achieved by formulating a liquid composition, having a neutral to alkaline pH, comprising a nonionic surfactant, a homopolymer or copolymer of vinylpyrrolidone and a polysaccharide polymer, with the proviso that that said composition does not comprise an amphoteric surfactant. Advantageously, the liquid compositions of the present invention show an improved "next time" cleaning performance, compared to other hard surface cleaners, on various types of stains / soils, in particular greasy soils, for example, dirt of greasy soap or greasy dirt found in kitchens, and other difficult stains that are on hard surfaces. A further advantage of the liquid compositions of the present invention is that good first-time cleaning is provided in addition to improved "next time" cleaning performance. Another additional advantage of the compositions of the present invention is that faster drying is obtained on the surfaces that have been cleaned therewith. In other words, the consumer will notice the advantages of reducing the total amount of time it takes to clean hard surfaces and reducing the hassle of having wet surfaces in the home. It has also been surprisingly discovered that the compositions according to the present invention provide the benefits mentioned herein when used to treat a variety of surfaces including metal surfaces, such as aluminum, chrome steel, stainless steel, synthetic materials, such as vinyl, linoleum, vitreous or non-vitreous ceramic tiles, and / or enameled surfaces.

TECHNICAL BACKGROUND EP-A-0 017 149 discloses a liquid detergent composition comprising a nonionic surfactant and a nonionic, weakly anionic or cationic polymer, soluble in water. I dont know describes a composition comprising a homopolymer or copolymer of vinylpyrrolidone in combination with a polysaccharide polymer. In addition, a "next time" cleaning benefit of the liquid detergent composition is not disclosed. EP-A-0 511 091 discloses compositions for cleaning hard surfaces, having a pH of 8.5 to 12.5 comprising a surfactant, an organic solvent, a sequestering agent, and optionally polyvinylpyrrolidone. A composition comprising a homopolymer or copolymer of vinylpyrrolidone in combination with a polysaccharide polymer is not described. EP-A-0 635 567 discloses a method for facilitating the removal of dirt from a solid surface using a liquid composition comprising a material that is deposited on the surface during washing and with drying forms a layer adhered to surface , which facilitates the removal of dirt contaminants from surface. materials are polymeric film-forming materials and polyvinylpyrrolidone is preferred. A composition comprising a homopolymer or copolymer of vinylpyrrolidone in combination with a polysaccharide polymer is not described. EP-A-0 467 472 discloses a hard surface modification composition comprising an anionic, cationic or non-ionic, water-soluble, dirt-suppressing polymer. Among the anionic, cationic or nonionic polymers, water-repellent antiredeposition of dirt, the polyvinylpyrrolidone is described. A composition comprising a homopolymer or copolymer of vinylpyrrolidone in combination with a polysaccharide polymer is not described.

BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a liquid composition, having a pH of 7 to 14, comprising a nonionic surfactant, a homopolymer or copolymer of vinylpyrrolidone and a polysaccharide polymer, with the proviso that composition does not comprise an agent amphoteric surfactant. In a preferred embodiment, a solvent is added to composition. In other preferred embodiments, the vinylpyrrolidone homopolymer or copoiimer is vinylpyrrolidone homopolymer and the polysaccharide polymer is xanthan gum. The present invention also encompasses a method for treating hard surfaces, wherein a liquid composition according to the present invention is applied to surfaces.

DETAILED DESCRIPTION OF THE INVENTION Liquid composition for cleaning hard surfaces The compositions according to the present invention are designed as hard surface cleaners. The liquid compositions according to the present invention are preferably aqueous compositions. Thus, may comprise from 70% to 99%, preferably from 75% to 95% and more preferably from 85% to 95% by weight of the total water composition. The liquid compositions of the present invention have a neutral to alkaline pH, ie, a pH of 7 to 14, preferably 7 to 12, more preferably 7 to 10. The compositions according to the present invention are advantageously chemically stable, that is, there are virtually no chemical reactions between the different ingredients of the compositions, and they are physically stable, ie, that phase separation does not occur when stored in rapid maturation test (RAT), that is, storage at 50 ° C for 10 days.

Nonionic Surfactant The first essential ingredient is a nonionic surfactant.

Typically, the compositions according to the present invention comprise from 0.1% to 20%, more preferably from 1% to 10%, and more preferably from 1% to 7%, and even more preferably from 1% to 5% by weight of the total composition of a nonionic surfactant. Suitable nonionic surfactants for use herein include a class of compounds, which may be broadly defined as compounds produced by the condensation of alkylene oxide groups (hydrophilic in nature) with an organic hydrophobic compound, which may be an alkyl branched or linear aliphatic (for example, Guerbert or secondary alcohol) or aromatic in nature. The length of the hydrophilic or polyoxyalkylene radical that is condensed with any particular hydrophobic group can be easily adjusted to yield a water-soluble compound having the desired degree of equilibrium between hydrophilic and hydrophobic elements. Accordingly, suitable nonionic synthetic detergents include: (i) polyethylene oxide condensates of alkylphenols, for example, the condensation products of alkylphenols having an alkyl group containing from 6 to 20 carbon atoms in either a straight chain or branched chain configuration, preferably from 8 to 14, and more preferably from 8 to 12 carbon atoms, with ethylene oxide. Said ethylene oxide is typically present in amounts of 3 to 25, preferably 10 to 25 moles of ethylene oxide per mole of alkylphenol. The alkyl substituent in said compounds can be derived from propylene, diisobutylene, octane and nonane polymerized; examples of this type of nonionic surfactants include Triton N-57® an ethoxylate of nonylphenol (5EO) from Rohm & Haas and Imbentin O200® an octylphenol ethoxylate (20EO) from KOLB. (I) Those derived from the condensation of ethylene oxide with the product resulting from the reaction of propylene oxide and ethylenediamine products which can vary in composition depending on the balance between hydrophobic and hydrophilic elements that is desired. Examples are compounds containing from 40% to 80% polyoxyethylene by weight and having a molecular weight of from 5,000 to 11,000 resulting from the reaction of ethylene oxide groups with a hydrophobic base consisting of the reaction product of ethylene diamine and sodium oxide. excess propylene, said base has a molecular weight in the order of 2500 to 3000. Examples of this type of nonionic surfactants include certain of the commercially available Tetronic ™ compounds, marketed by BASF. (iii) The compensation product of aliphatic alcohols having from 2 to 24 carbon atoms, in straight or branched chain configuration, preferably from 6 to 22, more preferably from 6 to 28, and even more preferably from 8 to 18 atoms carbon, with from 2 to 35, preferably from 4 to 25, more preferably from 5 to 18, and even more preferably from 3 to 15 moles of ethylene oxide. Examples of this type of material are a coconut alcohol condensate of ethylene oxide having from 5 to 18 moles of ethylene oxide per mole of coconut alcohol, the .

Coconut alcohol fraction has 9 to 14 carbon atoms. Other examples of this type of nonionic surfactants include certain of the commercially available Dobanol®, Neodol® marketed by Shell or Lutensol® of BASF. For example, Dobanol® 23.5 (C12-C13 EO5), Dobanol® 91.5 (C9-C11 EO5), dobanol® 91.8 (C9-C11 EO8) and Lutensol® AO30 (C12-C14 EO30). (iv) trialkylamine oxides and trialkyl phosphine oxides in which an alkyl group is on the scale of 10 to 18 carbon atoms and two alkyl groups are on the scale of 1 to 3 carbon atoms; the alkyl groups may contain hydroxy substituents; Specific examples are dodecyl di (2-hydroxyethyl) amine oxide and tetradecyldimethylphosphine oxide. (v) The condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol; the hydrophobic portion of these compounds will preferably have a molecular weight of 1500 to 1800 and will exhibit insolubility in water. The addition of polyoxyethylene portions to this hydrophobic portion tends to increase the water solubility of the molecule as a whole, and the liquid character of the product is retained to the point where the polyoxyethylene content is 50% of the total weight of the condensation product , which corresponds to condensation with up to 40 moles of ethylene oxide. Examples of compounds of this type include certain of the commercially available Pluronic ™ surfactants, marketed by BASF.

Also useful as a nonionic surfactant are the alkyl polysaccharides which are described in US Pat. 4,565,647, Filling, issued January 21, 1986, having a hydrophobic group containing from 6 to 30 carbon atoms, preferably from 10 to 16 carbon atoms and polysaccharide, for example, a polyglycoside, hydrophilic group containing from 1.3 to 10, preferably from 1.3 to 3, more preferably from 1.3 to 2.7 saccharide units. Any reducing saccharide containing from 5 to 6 carbon atoms can be used, for example, glucose, galactose, and galactoside portions can be substituted for the glucosyl moieties. (Optionally the hydrophobic group is adhered in the 2-, 3-, 4-, etc. positions thus giving a glucose or galactose as opposed to a glycoside or galactoside). The intersaccharide linkages can be, for example, between position one of the additional saccharide units and positions 2-, 3-, 4-, and / or 6- of the above saccharide units. Optionally, and less desirable, there may be a polyalkylene oxide chain linking the hydrophobic portion and the polysaccharide portion. The preferred alkylene oxide is ethylene oxide. Typical hydrophobic groups include alkyl groups, whether saturated or unsaturated, branched or unbranched containing from 8 to 18, preferably from 10 to 16, carbon atoms. Preferably, the alkyl group can contain up to 3 hydroxy groups and / or the polyalkylene oxide chain can contain up to 10, preferably less than 5, alkylene oxide portions. Suitable alkyl polysaccharides are octyl, nonyldecyl, undecyldecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl and octadecyl, di-, tri-, tetra-, penta-, and hexaglucosides, galactosides, lactosides, glucoses, fructosides, fructose and / or Galactoses Suitable mixtures include di-, tri-, tetra-, and cocoalkyl pentaglucosides, and tetra-, penta-, and alkyl baking glycosides. Preferred alkyl polyglycosides have the formula: R2O / CnH2nO) t (glycosyl) x wherein R2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from 10 to 18, preferably from 12 to 14, carbon atoms; m is 2 or 3, preferably 2; d is from 0 to 10, preferably 0; and x is from 1.3 to 10, preferably from 1.3 to 3, more preferably from 1.3 to 2.7. the glycosyl is preferably derived from glucose. To prepare these compounds, the alcohol or alkyl polyethoxy alcohol is first formed and then reacted with glucose, or a source of glucose, to form the glucoside (adhesion in the 1- position). The additional glycosyl units can then be adhered between their 1- position and the above glycosyl units in the 2-, 3-, 4- and / or 6- position, preferably predominantly the 2- position.

Other suitable nonionic surfactants for use herein include polyhydroxy fatty acid amides of the structural formula: wherein: R 1 is H, CrC 4 hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl, or a mixture thereof, preferably C 1 -C 4 alkyl, more preferably Ci or C 2 alkyl, more preferably Ci alkyl (is say methyl); and R2 is a C5-C31 hydrocarbyl, preferably straight chain C7-C19 alkyl or alkenyl, more preferably straight chain C9-C17 alkyl or alkenyl, more preferably straight chain C11-C17 alkyl or alkenyl, or mixtures thereof; and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyl directly connected to the chain, or an alkoxyl derivative (preferably ethoxylated or propoxylated) thereof. Z will preferably be derived from a reducing sugar in a reductive amination reaction; more preferably Z is a glycityl. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose, and xylose. As raw materials, high dextrose corn syrup can also be used as the individual sugars listed above. These corn syrups can yield a mixture of sugar components for Z. It will be understood that in no way is it intended to exclude other suitable raw materials. Z will be selected preferably from the group consisting of -CH2- (CHOH) n -CH2OH, -CH (CH2OH) - (CHOH) n -? - CH2OH, -CH2 (CHOH) 2 (CHOR ') (CHOH) -CH2OH, where n is an integer from 3 to 5, inclusive, and R 'is H or a cyclic or aliphatic mono saccharide, and alkoxylated derivatives thereof. Most preferred are glycityls in which n is 4, in particular -CH2 (CHOH) 4-CH2OH. In formula (I), R1 may be, for example, N-methyl, N-ethyl, N-propyl, N-isopropyl, N-butyl, N-2-hydroxyethyl, or N-2-hydroxypropyl. R2-CO-N < it can be, for example, cocamide, stearamide, oleamide, laureamide, myristamide, capricamide, palmitamide, ceboamide, etc. Z can be 1-deoxyglucityl, 2-deoxyfructityl, 1-deoxymaltityl, 1-deoxylactityl, 1-deoxygalactityl, 1-deoxyanityl, 1 -deoxytrotothiathityl, etc. Other suitable nonionic surfactants for use herein include the amine oxides corresponding to the formula: R R 'R "N? O wherein R is a primary alkyl group containing from 6 to 24 carbons, preferably from 10 to 18 carbons, and wherein R 'and R "are each, independently, an alkyl group containing from 1 to 6 carbon atoms; The arrow in the formula is a conventional representation of a semipolar bond Preferred amine oxides are those in which the primary alkyl group has a straight chain in at least the majority of the molecules, generally at least 70%, preferably at least 90% of the molecules, and the amine oxides which are especially preferred are those in which R contains from 10 to 18 carbons and R "and R" are both methyl. Illustrative of the preferred amine oxides are N-hexyl dimethyl amine oxide, N-octyldimethylamine oxide, N-decyldimethylamine oxide, N-dodecyldimethylamine oxide, N-tetradecyldimethylamine oxide, N-hexadecyldimethylamine oxide, N-octadecyldimethylamine oxide. , N-eicosyldimethylamine oxide, N-docosyldimethylamine oxide, N-tetracosyldimethylamine oxide, the corresponding amine oxides in which one or both of the methyl groups are replaced with ethyl or 2-hydroxyethyl groups and mixtures thereof. A more preferred amine oxide to be used herein is N-decyldimethylamine oxide. Other nonionic surfactants suitable for the purpose of the invention are the phosphine or sulfoxide surfactants of the formula: R R 'R "A? O wherein A is a phosphorus or sulfur atom, R is a primary alkyl group containing 6-24 carbons, preferably 10-18 carbons, and in which R 'and R "are each independently selected from methyl, ethyl and 2-hydroxyethyl The arrow in the formula is a conventional representation of a semipolar bond In a preferred embodiment herein, suitable nonionic surfactants to be used are condensates of polyethylene oxide of alkyl phenols, polyethylene oxide condensates of alkyl alcohols, alkyl polysaccharides, or mixtures thereof. Highly preferred are C6-C20 alkylphenol ethoxylates, preferably C8-C12 alkyl having from 3 to 25, preferably from 10 to 25 ethoxy groups, and ethoxylates of C2-C24 alcohol, preferably C6-Ci8 having 2 to 35, preferably from 4 to 25, more preferably from 5 to 18 and even more preferably from 3 to 15 units of ethylene oxide, and mixtures thereof.

Vinylpyrrolidone Homopolymer or Copolymer The liquid compositions of the present invention comprise as a second essential ingredient a homopolymer or copolymer of vinylpyrrolidone. Typically, the compositions of the present invention comprise from 0.01% to 5%, more preferably from 0.05% to 3% and more preferably from 0.05% to 1% by weight of the total composition of a vinylpyrrolidone homopolymer or copolymer. The vinylpyrrolidone homopolymers suitable for use herein are homopolymers of N-vinylpyrrolidone having the following repeating monomer: wherein n (degree of polymerization) is an integer of 10 to 1,000,000, preferably 20 to 100,000, and more preferably 20 to 10,000. Accordingly, the vinyl pyrrolidone homopolymers ("PVP") suitable for use herein have an average molecular weight of 1,000 to 100,000,000, preferably 2,000 to 10,000,000, more preferably 5,000 to 1,000,000, and more preferably from 50,000 to 500,000. Suitable vinyl pyrrolidone homopolymers are commercially available from ISP Corporation, New York, NY and Montreal, Canada under the product names PVP K-15® (viscosity molecular weight 10,000), PVP K-30® (average molecular weight of 40,000), PVP K-60® (average molecular weight of 160,000), and PVP K-90® (average molecular weight of 360,000). Other suitable vinylpyrrolidone homopolymers that are commercially available from BASF Cooperation include Sokalan HP 165®, Sokalan HP 12®, Luviskol K30®, Luviskol K60®, Luviskol K80®, Luviskol K90® and other vinylpyrrolidone homopolymers known for persons skilled in the field of detergents (see for example EP-A-262,897 and EP-A-256,696). Vinylpyrrolidone copolymers suitable for use herein include copolymers of N-vinylpyrrolidone and alkylenically unsaturated monomers or mixtures thereof. The alkylenically unsaturated monomers of the copolymers herein include unsaturated dicarboxylic acids such as maleic acid, chloramalicylic acid, fumaric acid, taconic acid, citraconic acid, phenylmalic acid, aconitic acid, acrylic acid, N-vinylimidazole and vinylen acetate. Any of the anhydrides of the unsaturated acids can be used, for example acrylate, methacrylate. Aromatic monomers such as styrene, sulfonated styrene, alpha-methyl styrene, vinyl toluene, t-butyl styrene and similar well-known monomers can also be used. The molecular weight of the vinylpyrrolidone copolymer is not especially critical insofar as the copolymer is water-soluble, has some surface activity and is absorbed into the liquid surface from the liquid composition comprising it in such a way as to increase the hydrophilic capacity of the surface . However, the preferred copolymers of N-vinylpyrrolidone and alkylenically unsaturated monomers or mixtures thereof, have a molecular weight of between 1,000 and 1,000,000, preferably between 10,000 and 500,000 and more preferably between 10,000 and 200,000.

For example, the N-vinylimidazole N-vinylpyrrolidone polymers particularly suitable for use herein have an average molecular weight scale of 5,000 to 1,000,000, preferably 5,000 to 500,000, and more preferably 10,000 to 200,000. The average molecular weight scale was determined by light scattering as described in Barth H.G. and Mays J.W. Chemical Analysis Vol 113, "Modern Methods of Polymer Characterization". Said copolymers of N-vinylpyrrolidone and alkylenically unsaturated monomers such as PVP / vinyl acetate copolymers are commercially available under the tradename Luviskol® series from BASF. The vinylpyrrolidone copolymers for use in the compositions of the present invention also include quaternized or non-quaternized copolymers of vinylpyrrolidone / dialkyl aminoalkyl acrylate or methacrylate. Said copolymers of vinylpyrrolidone / dialkyl aminoalkyl acrylate or methacrylate (quaternized or non-quaternized) suitable for use in the compositions of the present invention are according to the following formula: In which n is between 20 and 99 and preferably between 40 and 90 mol% and m is between 1 and 80 and preferably between 5 and 40 mol%; R1 represents H or CH3 and denotes 0 or 1; R2 s -CH2-CHOH-CH2 or CxH2? where x = 2 to 18; R3 represents a lower alkyl group of 1 to 4 carbon atoms, preferably methyl or ethyl, or R4 denotes a lower alkyl group of 1 to 4 carbon atoms, preferably methyl or ethyl; X- is selected from the group consisting of Cl, Br, I, 1 / 2SO4, HSO and CH3SO3. The polymers can be prepared by the process described in French Patent Nos. 2,077,143 and 2,393,573.

Preferred quaternized or non-quaternized dialkylaminoalkyl or vinyl pylorridone copolymers of quaternized or non-quaternized methacrylate for use herein have a molecular weight of between 1,000 and 1,000,000, preferably between 10,000 and 500,000 and more preferably between 10,000 and 100,000. Said copolymers of vinylpyrrolidone / dialkylaminoalkyl acrylate or methacrylate are commercially available under the name copolymer 845®, Gafquat 734®, or Gafquat 755® from ISP Corporation, New York, NY and Montreal, Canada or from BASF under the tradename Luviquat®. The second preferred essential ingredients for use herein are vinylpyrrolidone homopolymers.

Polysaccharide Polymer The liquid compositions of the present invention comprise as a third essential ingredient a polysaccharide polymer.

Typically, the compositions of the present invention comprise 0. 01% to 5%, more preferably from 0.05% to 3% and more preferably from 0. 05% to 1% by weight of the total composition of a polysaccharide polymer. Polysaccharide polymers suitable for use herein include substituted cellulose materials such as carboxymethylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxymethylcellulose, succinoglycan and polysaccharide polymers that naturally occur as xanthan gum, guar gum, locust bean gum, tragacanth gum or derivatives thereof, or mixtures thereof. Particularly suitable polysaccharide polymers for use herein are xanthan gum and derivatives thereof. The xanthan gum and derivatives thereof may be commercially available for example from Kelco under the tradename Keltrol RD®, Kelzan S® or Kelzan T®. Another suitable xanthan gum is commercially available from Rhone Poulenc under the trade name Rhodopol T® and Rhodigel X747®. The succinoglycan gum for use herein is commercially available from Rhone Poulenc under the trade name Rheozan ®. The present invention is based on the discovery that the homopolymers or copolymers of vinylpyrrolidone and polysaccharide polymers present in the compositions of the present invention are capable of modifying the surface by deposition on the surface treated therewith. Although one does not wish to be limited by theory, it has been observed that the hard surfaces typically found in a home are neither very hydrophobic nor very hydrophilic. This means that when the water comes into contact with hard surfaces, its dispersion, which is controlled by interfacial energy (i.e. solid / liquid surface tension), is very limited. In fact, it has been observed that the most stable configuration for water is grouped into spherical droplets rather than forming a thin film that extends evenly over the surface.

Then, as the water droplets evaporate, their salt content becomes progressively higher and higher so that the carbonate salts eventually precipitate resulting in watermarks, or even deposits of limestone scale. The final result is a reduction in surface brightness. It has now been discovered that when the vinylpyrrolidone homopolymers or copolymers as described herein are added in liquid compositions, having a neutral to alkaline pH, a hydrophilic layer is left on the hard surface treated with said composition. The hydrophilic layer facilitates the formation of a uniform film of water that extends over the surface ("film forming effect") instead of forming drops. It has been further discovered that when the polysaccharide polymers as described herein are added in liquid compositions, which have a neutral to alkaline pH, which comprise the homopolymers or copolymers of vinylpyrrolidone, the hydrophilic modification of the surface treated therewith is improved and the quality of said sheeting effect is widened resulting in an improved gloss benefit additionally supplied to the treated surface. Additionally, it has been surprisingly discovered that the presence of a nonionic surfactant in addition to those two polymers in a composition, having a neutral to alkaline pH, results in an improved absorption of vinylpyrrolidone homopolymers or copolymers on the surface hard treated and therefore further extends the effect of training sheet, resulting in an improved gloss benefit even more delivered to the treated surface ("gloss benefit"). In this way, by modifying the surface characteristics as indicated, the formation of watermarks and / or limescale deposits with drying is reduced or even eliminated. Additionally, it has been surprisingly discovered that homopolymers or copolymers of vinylpyrrolidone and polysaccharide polymers have not only the ability to adhere to a surface treated with the liquid compositions of the present invention comprising the same, but still remain attached. on the surface even after several rinse cycles (for example, when the water is put on this surface later or for example in a sink during daily household operation), thus providing a durable protection against formation of watermarks and / or deposition of deposits of limestones, and therefore surfaces with durable gloss ("lasting gloss benefit"). In addition, the hydrophilic layer reduces the adhesion of soils on said hard surface treated with the composition according to the present invention and / or facilitates the removal of subsequently deposited soils thereon. In this way, less effort is required (for example, less carving and / or less rubbing and / or less chemical action) to remove the dirt in the next cleaning operation ("next time" cleaning benefit), in comparison to cleaning a surface It lasts dirty in a similar way that has been treated first with the same composition but in which one of the essential ingredients is absent. More particularly, it has been surprisingly discovered that there is a synergistic effect on the "next time" cleaning performance associated with the use of a vinylpyrrolidone homopolymer or copolymer and a polysaccharide polymer, as described in the present invention. In fact, the "next time" cleaning performance provided by the use of a vinylpyrrolidone homopolymer or copolymer and a polysaccharide polymer as described herein, in a liquid composition, is superior to the "next time" cleaning performance. "supplied by, for example, the same composition comprising only one of those ingredients at the same total level of soil anti-rejecting ingredients. Additionally, it has been surprisingly discovered that the adhesion of a nonionic surfactant in addition to the combination of said two polymers in a liquid composition, having a neutral to alkaline pH, further improves the improved cleaning benefit of " next "supplied by a composition, having a neutral to alkaline pH, comprising said two polymers, as described herein, in the absence of the nonionic surfactant. An additional advantage related to the use of the homopolymers or copolymers of vinylpyrrolidone and polysaccharide polymers, in the present compositions, is that as they adhere on the hard surfaces making them more hydrophilic, the surfaces themselves become softer (this can be perceived by tong said surfaces) and this contributes to achieving the perception of the surfaces as being perfectly without limestones inlays. Advantageously, these benefits are obtained at low levels of homopolymers or copolymers of vinylpyrrolidone and polysaccharide polymers, preferably of xanthan gum or derivatives thereof, described herein, therefore, it is yet another advantage of the present invention provide the desired benefits at low cost.

Optional ingredients The liquid compositions according to the present invention may comprise a variety of optional ingredients depending on the technical benefit sought and the treated surface. Optional ingredients suitable for use herein include an alkalinity strength, a solvent, other surfactants other than non-ionic or amphoteric surfactants, a builder, a chelator, a pH regulator, a bactericide, a hydrotrope, a dye, a stabilizer, a radical scavenger, a bleach, a bleach activator, a preservative, a foaming control agent such as a fatty acid, an enzyme, a soil suspending agent, an ink transfer agent, a brightener, a powder anti-scalding agent, a dispersant, an inhibitor of ink transfer, a pigment, an acid, an ink and / or a perfume.

Source of Alkalinity The liquid compositions of the present invention have a neutral to alkaline pH. In this way, they can comprise as a highly preferred optional ingredient a source of alkalinity. The amount of said alkalinity source in the present invention may vary depending on the amount of other ingredients. Preferred liquid compositions herein can comprise up to 10%, preferably from 0.1% to 10%, more preferably from 0.2% to 8% and even more preferably from 0.2% to 6% by weight of the total composition of an alkalinity source . Suitable alkalinity sources for use herein are caustic alkalies such as sodium hydroxide, potassium hydroxide and / or lithium hydroxide, and / or alkali metal oxides such as sodium and / or potassium oxide. A strongly preferred source of alkalinity is a caustic alkali, more preferably sodium hydroxide and / or potassium hydroxide. Other suitable alkalinity sources include ammonia, ammonium carbonate and hydrogen carbonate.

Solvent The compositions of the present invention may additionally comprise a solvent, as a highly preferred optional ingredient. The solvents that will be used here include all those known to the person skilled in the art of compositions for cleaning hard surfaces. Solvents are desired herein because they contribute to the cleansing performance of greasy soils of the present compositions, they also improve the wettability of the surfaces which are treated with said composition to maximize the absorption of polymers on the treated surface, with the consequent effect of improved sheet formation and therefore still improves the advantages of the present invention, described herein. Suitable solvents for use herein include ethers and diethers having from 4 to 14 carbon atoms, preferably from 6 to 12 carbon atoms, and more preferably from 8 to 10 carbon atoms, glycols or alkoxylated glycols, alkoxylated aromatic alcohols , aromatic alcohols, branched aliphatic alcohols, alkoxylated aliphatic branched alcohols, linear C1-C5 alkoxylated alcohols, linear C1-C5 alcohols, hydrocarbons and halohydrocarbons of C8-Cu alkyl and cycloalkyl, C6-Ci6 glycol ethers and mixtures of the same. Glycols suitable for use herein are suitable with the formula HO-CR1 R2-OH in which R1 and R2 are independently H or an aliphatic or cyclic hydrocarbon chain, saturated or unsaturated C2-C10. The glycols suitable for use herein are dodecane glycol and / or propanediol.

Suitable alkoxylated glycols to be used herein are according to the formula R- (A) n-R 1 -OH in which R is H, OH, a saturated or unsaturated linear alkyl of 1 to 20 carbon atoms, preferably from 2 to 15 and more preferably from 2 to 10, in which R1 is a saturated or unsaturated linear alkyl of 1 to 20 carbon atoms, preferably 2 to 15 and more preferably 2 to 10, and A is a alkoxy group preferably ethoxy, methoxy, and / or propoxy and n is from 1 to 5, preferably from 1 to 2. The alkoxylated glycols suitable for use herein are methoxyoctadecanol and / or ethoxyethoxyethanol. The alkoxylated aromatic alcohols suitable for use herein are according to the formula R- (A) n-OH in which R is an aryl group substituted by alkyl or substituted by non-alkyl of 1 to 20 carbon atoms, preferably from 2 to 15 and more preferably from 2 to 10, wherein A is an alkoxy, preferably butoxy, propoxy and / or ethoxy group, and n is an integer from 1 to 5, preferably from 1 to 2. Suitable alkoxylated aromatic alcohols they are benzoxyethanol and / or benzoxypropanol. Aromatic alcohols suitable for use herein are according to the formula R-OH in which R is an aryl group substituted by alkyl or substituted by non-alkyl of 1 to 20 carbon atoms, preferably 1 to 15 and more preferably from 1 to 10. For example, an aromatic alcohol suitable for use herein is benzyl alcohol.

Branched aliphatic alcohols suitable for use herein are according to the formula R-OH in which R is a saturated or unsaturated branched alkyl group of 1 to 20 carbon atoms, preferably 2 to 15 and more preferably 5 to 12. Branched aliphatic alcohols particularly suitable for use herein include 2-ethylbutanol and / or 2-methylbutanol. Branched aliphatic alkoxylated alcohols suitable for use herein are according to the formula R- (A) n-OH in which R is a saturated or unsaturated branched alkyl group of 1 to 20 carbon atoms, preferably 2 to 15 and more preferably from 5 to 12, wherein A is an alkoxy group preferably butoxy, propoxy and / or ethoxy, and n is an integer from 1 to 5, preferably from 1 to 2. Suitable alkoxylated branched aliphatic alcohols include 1 -methylpropoxyethanol and / or 2-methylbutoxyethanol. The linear C 1 -C 5 alkoxylated alcohols suitable for use herein are according to the formula R- (A) n-OH in which R is a saturated or unsaturated alkyl group of 1 to 5 carbon atoms, preferably from 2 to 4, wherein A is an alkoxy, preferably butoxy, propoxy and / or ethoxy group, and n is an integer from 1 to 5, preferably 1 to 2. Suitable alkoxylated, linear alkoxy alcohols of C1-C5 are butoxy propoxy propanol (n-BPP), butoxyethanol, butoxypropanol, ethoxyethanol or mixtures thereof. Butoxipropoxypropanol is commercially available under the tradename n-BPP® from Dow Chemical.

The C1-C5 linear alcohols suitable for use herein are according to the formula R-OH in which R is a saturated or unsaturated linear alkyl group of 1 to 5 carbon atoms, preferably 2 to 4. Suitable linear C1-C5 alcohols are methanol, ethanol, propanol or mixtures thereof. Other suitable solvents include butyl diglycol ether (BDGE), butyltriglycol ether, teramyl alcohol, and the like. Particularly preferred solvents for use herein are butoxy propoxy propanol, butyldiglycol ether, benzyl alcohol, butoxypropanol, ethanol, methanol, isopropanol and mixtures thereof. The preferred solvent for use herein is butoxypropoxypropanol (n-BPP). Typically, the compositions of the present invention comprise from 0.1% to 8%, preferably from 0.5% to 5% and more preferably from 1% to 3% by weight of the total composition of a solvent.

Additional Surfactant The liquid compositions of the present invention may preferably comprise an additional surfactant, in addition to the nonionic surfactant already described herein. Additional surfactants may be desired herein since they additionally contribute to the benefit of cleaning performance and / or gloss of the compositions of the present invention. Surfactants for used herein include cationic surfactants, anionic surfactants, zwitterionic surfactants, and mixtures thereof. The compositions according to the present invention do not comprise an amphoteric surfactant. Accordingly, the compositions according to the present invention can comprise up to 15%, more preferably from 0.5% to 8%, even more preferably from 0.5% to 8%, and more preferably from 0.5% to 8% by weight of the total composition of another surfactant in addition to the nonionic surfactant already described herein. Preferred surfactants for use herein are zwitterionic surfactants. In fact, they provide excellent grease cleansing ability to the compositions of the present invention. The zwitterionic surfactants suitable for use herein contain basic groups and acid groups which form an inner salt giving cationic and anionic hydrophilic groups on the same molecule at a relatively broad scale of pHs. The typical cationic group is a quaternary ammonium group, although other positively charged groups such as phosphonium, imidazolium and sulfonium groups can be used. Typical anionic hydrophilic groups are carboxylates and sulfonates, although other groups such as sulfates, phosphonates and the like can be used.

A generic formula for preferred zwitterionic surfactants for use herein (ie, betaine and / or sulfobetaine) is: R1-N + (R2) (R3) R4X- in which R-i is a hydrophobic group; R 2 is hydrogen, C 1 -C 2 alkyl, hydroxyalkyl or another substituted C 1 -C 7 alkyl group; R3 is alkyl of C? C6 alkyl, hydroxy alkyl or other alkyl group Ci-Css substituted can also be attached to R2 to form ring structures with the N, or a carboxylic acid or a sulfonate group CRC6 of CTC- H.H; R4 is a moiety joining the cationic nitrogen atom to the hydrophilic group and is typically an alkylene, hydroxyalkylene, or polyalkoxy group containing from 1 to 10 carbon atoms; and X is the hydrophilic group which is a carboxylate or sulfonate group, preferably a sulfonate group. Preferred hydrophobic R1 groups are aliphatic or aromatic hydrocarbon chains, saturated or unsaturated, substituted or unsubstituted, which may contain linking groups such as amido groups, ester groups. More preferably R1 is an alkyl group containing from 1 to 24 carbon atoms, preferably from 8 to 18, and more preferably from 10 to 16. Those simple alkyl groups are preferred for reasons of cost and stability. However, the hydrophobic group Ri may also be an amido radical of the formula Ra-C (0) -NRb- (C (Rc) 2) m wherein Ra is a chain aliphatic or aromatic, saturated or unsaturated hydrocarbon , substituted or unsubstituted containing from 8 to 20 carbon atoms, preferably an alkyl group containing from 8 to 20 carbon atoms, preferably up to 18, more preferably up to 16, Rb is a hydrogen or substituted alkyl or substituted alkyl which contains from 1 to 4 carbon atoms, preferably a group selected from the group consisting of methyl, ethyl, propyl, ethyl or propyl substituted by hydroxy and mixtures thereof, more preferably methyl or hydrogen, Rc is selected from the group consisting of hydrogen and hydroxy groups, and m is 1 to 4, preferably 2 to 3, more preferably 3, with no more than one hydroxy group in any portion (C (RC) 2). The preferred R 2 is hydrogen, or an alkyl or substituted alkyl containing from 1 to 4 carbon atoms, preferably a group selected from the group consisting of methyl, ethyl, propyl, ethyl or propyl substituted by hydroxy and mixtures thereof, more preferably methyl. The preferred R3 is a carboxylic acid group of C -? - C, a sulfonate group of C? -C4? or an alkyl or substituted alkyl containing from 1 to 4 carbon atoms, preferably a group selected from the group consisting of methyl, ethyl, propyl, ethyl or propyl substituted by hydroxy and mixtures thereof, more preferably methyl. The preferred R 4 is (CH 2) n in which n is an integer from 1 to 10, preferably from 1 to 6, more preferably from 1 to 3. Some common examples of betaine / sulfobetaine are described in the U.S. Patents. Nos. 2,082,275, 2,702,279 and 2,255,082, incorporated herein by reference.

Examples of particularly suitable alkyldimethyl include coconut-dimethyl betaine, lauryl, decildimetilbetaína, 2- (N-decyl-N, N-dimethylammonium) ethyl 2- (N-coco N, N-dimethylammonium), miristildimetilbetaína, palmitildimetilbetaína , cetildimetilbetaína, estearild i methyl betaína. For example, cocodimethylbetaine is commercially available from Seppic under the trade name of Amonyl 265®. Laurylbetaine is commercially available from Albright & Wilson under the trade name Empigen BB / L®. A further example of betaine is Lauryl-imino-dipropionate commercially available from Rhone-Poulenc under the trade name Mirataine H2C-HA ®, The switeriónicos tenisoactivos agents particularly preferred for use in the compositions of the present invention are the sulfobetaine surfactants and that provide optimal fat cleaning benefits. Examples of particularly suitable sulphobetaine surfactants include bis (hydroxyethyl) sulphobetaine, cocoamidopropylhydroxysulfobetaine baits which are commercially available from Rhone Poulenc and Witco, under the trade name of Mirataine CBS® and Rewoteric AM CAS 15® respectively. Additional examples of amidobetaines / aminosulfobetaines include cocoamidoethylbetaine, cocoamidopropylbetaine or acylamidopropylene (hydroxypropylene) sulfobetaine C10-Cu fat. example, the acylamidopropylene (hydropropylene) sulfobetaine fat of C? 0-C1 is commercially available from Sherex Company under the tradename "Varion CAS® sulfobetaine". Suitable amines for use herein are according to the following formula RR'R "N wherein R is a saturated or unsaturated, substituted or unsubstituted, straight or branched alkyl group, containing from 1 to 30 carbon atoms , and preferably from 1 to 20 carbon atoms and in which R 'and R "are independently saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl groups, containing from 1 to 30 carbon atoms or hydrogen. Particularly preferred amines to be used according to the present invention are amines having the following formula RR'R "N in which R is a saturated or unsaturated, straight or branched alkyl group, containing from 1 to 30 carbon atoms , preferably from 8 to 20 carbon atoms, more preferably from 6 to 16, more preferably from 8 to 14 and in which R 'and R "are independently substituted or unsubstituted, linear or branched alkyl groups, containing from 1 to 4 carbon atoms, preferably 1 to 3 carbon atoms and more preferably are methyl groups, or mixtures thereof. Suitable amines to be used herein are for example C12 dimethylamine, cocodimethylamine, C12-C16 dimethylamine. Said amines may be commercially available from Hoechst under the trade name Genamin®, AZKO under the trade name Aromox® or Fina under the tradename Radiamine®.

The quaternary ammonium surfactants suitable for use herein are according to the formula R- | R2R3R N + X-, wherein X is a counter-anion such as halogen, methyl sulfate, methyl sulfonate, or hydroxide, Ri is a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl group, containing from 1 to 30 carbon atoms, preferably from 12 to 20, more preferably from 8 to 20 and R2, R3 and 4 are independently hydrogen or saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl groups containing from 1 to 4 carbon atoms, preferably from 1 to 3 and more preferably methyl. In highly preferred quaternary ammonium surfactants herein, R-i is a C-to-C2 hydrocarbon chain, more preferably C-? 2, Cu, or Cie, and R2 > R3 and R4 are all three methyl, and X is halogen, preferably bromine or chlorine, more preferably bromine. Examples of quaternary ammonium surfactants are methyltrimethylammonium methyl sulfate, methylcetyltrimethylammonium sulfate, lauryltrimethylammonium bromide, stearyltrimethylammonium bromide (S ), cetyltrimethylammonium bromide (C ) and myristyltrimethylammonium bromide (M ). Highly preferred herein are the lauryltrimethylammonium salts. Said quaternary trimethylammonium surfactants may be commercially available from Hoechst, or from Albright & Wilson under the Empigen CM® trade name. Cationic surfactants suitable for use in compositions of the present invention are those that have a group long-chain hydrocarbyl. Examples of such cationic surfactants include ammonium surfactants such as alkyldimethylammonium halides, and those surfactants having the formula: wherein R2 is an alkyl or alkylbenzyl group having 8 to 18 carbon atoms in the alkyl chain, each R3 is selected from the group consisting of -CH2CH2-, -CH2CH (CH3) -, -CH2CH (CH2OH) -, -CH2CH2CH2-, and mixtures thereof; each R4 is selected from the group consisting of CrC4 alkyl, hydroxyalkyl of C C4 benzyl ring structures formed by joining the two groups R4, -CH2CHOH- CHOHCOR6CHOHCH2OH in which R6 is any hexose or hexose polymer having a molecular weight of less than of 1, 000, and hydrogen when and is not 0; R5 is the same as R4 or is an alkyl chain in which the total number of carbon atoms of R2 plus R5 is not more than 18; each y is from zero to 10 and the sum of the y values is from 0 to 15; and X is a compatible anion. Other cationic surfactants useful herein are also described in the U.S.A. 4,228,044, Cambre, issued October 14, 1980, incorporated herein by reference. Suitable anionic surfactants for use herein are all those commonly known to those skilled in the art.

The technique. Preferably, the anionic surfactants for use herein include alkyl sulfonates, alkylaryl sulfonates, alkyl sulfates, akoxylated alkyl sulfates, linear or branched diphenyl oxide disulfonates, C6-C20 alkoxylated alkyl, or mixtures of the same. Suitable alkyl sulfonates for use herein include water-soluble salts or acids of the formula RSO3M in which R is a saturated or unsaturated, straight or branched alkyl group of C6-C20. preferably a C 8 -C 8 alkyl group and more preferably a C 10 -C 16 alkyl group, and M is H or a cation, for example, an alkali metal cation (eg, sodium, potassium, lithium), or ammonium cation or substituted ammonium (e.g. methyl, dimethyl, and trimethylammonium cations and quaternary ammonium cations, such as tetramethylammonium and dimethylpiperidinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof, and Similar). Alkylaryl sulfonates suitable for use herein include salts or water soluble acids of the formula RSO3M in which R is an aryl, preferably a benzyl, substituted by a linear or branched C6-C20 alkyl group, saturated or unsaturated , preferably a C 8 -C 8 alkyl group, and more preferably an C-io-C-iß alkyl group, and M is H or a cation, for example, an alkali metal cation (eg, sodium, potassium) , lithium, calcium, magnesium and the like) or ammonium or substituted ammonium (eg, methyl, dimethyl and trimethylammonium cations and cations of quaternary ammonium, such as tetramethylammonium cations and dimethyl piperidinium and quaternary ammonium cations derived from alkylamines such as ethylamine, diethylamine, triethylamine, and mixtures thereof, and the like). By "C6-C2o alkyl sulfonates, or secondary C2-C2 alkylaryl sulfonates" means herein that in the formula as defined above, the SO3M or aryl-SO3M group is bonded to a carbon atom of the alkyl chain which is placed between the other two carbons of said alkyl chain (secondary carbon atom). An example of an alkyl sulfonate of Cu-C-iß is Hostapur® SAS available from Hoechst. An example of commercially available alkylaryl sulphonates is laurylaryl sulfonate from Su.Ma .. Particularly preferred alkylaryl sulfonates are alkylbenzene sulfonates commercially available under the tradename Nansa® available from Albright &Wilson. The alkyl sulfate surfactants suitable for use herein are according to the formula R- | S04M in which Ri represents a hydrocarbon group selected from the group consisting of straight or branched alkyl radicals containing from 6 to 20 carbon atoms and alkylphenyl radicals containing from 6 to 18 carbon atoms in the alkyl group. M is H or a cation, for example an alkali metal cation (for example, sodium, potassium, lithium, calcium, magnesium and the like) or ammonium or substituted ammonium (for example, methyl, dimethyl and trimethylammonium cations and quaternary ammonium cations, such as tetramethylammonium and dimethylpiperidinium cations and quaternary ammonium cations derived from alkylamines such as ethylamine, and diethylamine, triethylamine and mixtures thereof, and the like). By "linear alkyl sulfate or sulfonate" is meant an unsubstituted alkyl sulfate or sulfonate in which the alkyl chain comprises from 6 to 20 carbon atoms, preferably from 8 to 18 carbon atoms, and more preferably from 10 to 16 carbon atoms, and in which this alkyl chain is sulfonated or sulfonated in one term. By "sulphonate or branched sulfate" is meant an alkyl chain having from 6 to 20 total carbon atoms, preferably from 8 to 18 total carbon atoms and more preferably from 10 to 16 total carbon atoms, in which the major alkyl chain is replaced by at least one other alkyl chain, and in which the alkyl chain is sulfonated or sulfonated at one term. Particularly preferred branched alkyl sulfates to be used herein are those containing from 10 to 14 total carbon atoms such as Isalchem 123 AS®. Isalchem 123 AS® commercially available from Enichem is a C? 2-13 surfactant that is 94% branched. This material can be described as CH3- (CH2) m-CH (CH2OSO3Na) - (CH2) n-CH3 where n + m = 8-9. Also preferred alkyl sulfates are alkyl sulfates wherein the alkyl chain comprises a total of 12 carbon atoms, i.e., 2-butyloctyl sulfate of sodium. Said alkyl sulfate is commercially available from Condea under the trade name Isofol® 12S. Particularly suitable linear alkyl sulfonates include C? 2-C-? 6 paraffin sulfonate, such as Hostapur® SAS commercially available from Hoechst. Suitable alkoxylated alkyl sulfate surfactants for use herein are according to the formula RO (A) mSO 3 M wherein R is an unsubstituted C 1 -C 2 alkyl or hydroxyalkyl group having a C 6 -C 20 alkyl component , preferably a C12-C20 alkyl or hydroxyalkyl, more preferably C2-Ct8 alkyl or hydroxyalkyl, A is an ethoxy or propoxy unit, m is larger than zero, typically between 0.5 and 6, more preferably between 0.5 and 3 , and M is H or a cation which may be, for example, a metal cation (eg, sodium, potassium, lithium, calcium, magnesium, etc.), ammonium cation or substituted ammonium cation. The ethoxylated alkyl sulfates as well as the propoxylated alkyl sulfates are contemplated herein. Specific examples of substituted ammonium cations include methyl, dimethyl, trimethylammonium cations and quaternary ammonium cations, such as tetramethylammonium cations, dimethylpiperidinium and cations derived from alkanolamines such as ethylamine, diethylamine, triethylamine, mixtures thereof and the like. Illustrative surfactants are polyethoxylated alkyl sulfate of C-? 2-C? 8 (1.0), Ci2-C? ßE (1.0) M). polyethoxylated alkyl sulfate of C12-C? 8, (2.25), C12-C18E (2.25) M), polyethoxylated alkyl sulfate of C? 2-C18 (3.0), C2-C? 8E (3.0), and C 2 -C 8 polyethoxylated alkyl sulfate, (4.0), Ci 2 -C 8 E (4.0) M), in which M is conveniently selected from sodium and potassium. The linear or branched alkylalkoxylated C6-C2o alkyl diphenyl oxide disulfonate surfactants suitable for use herein are according to the following formula: wherein R is a saturated or unsaturated, linear or branched alkyl group of C6-C20, preferably a C2-C-8 alkyl group and more preferably an C-C6 alkyl group, and X + is H or a cation, for example, an alkali metal cation (for example, sodium, potassium, lithium, calcium, magnesium and the like). The linear or branched C 1 -C 2 alkylated alkoxylated diphenyl oxide disulfonate surfactants for use herein are the branched diphenyl oxide acid of C 2, and the linear sodium diphenyl oxide disulfonate salt of C? 6 commercially available respectively from DOW under the tradename Dowfax 2A1® and Dowfax 8390®. Other anionic surfactants useful herein include salts (including, for example, sodium, potassium, ammonium and substituted ammonium salts such as mono, di, and tetralonamine salts) of soap, C8-C24 olefinsulfonates, sulfonated polycarboxylic acids prepared by sulfonation of the pyrolyzed product of alkaline earth metal citrates, for example, as described in British Patent Specification No. 1, 082,179, C8-C24 alkyl polyglycol ether sulphates (containing up to 10 moles of ethylene oxide); alkyl ester sulfonates such as Cu-C26 methyl ester sulfonates; acylglycerol sulfonates, fatty oleyl glycerol sulphates, alkylphenoletylene oxide ether sulfates, alkyl phosphates, isethionates such as acyl setionates, N-acyl taurates, alkyl sucinamates and sulfosucinates, sulfosucinate monoesters (especially C6 monoesters) Cu saturated and unsaturated) sulfosucinate diesters (especially saturated and unsaturated C6-Cu diesters), acyl sarcosinates, alkylpolysaccharide sulfates such as alkylpolyglucoside sulfates (non-sulfated nonionic compounds as described below), alkylpolyethoxy carboxylates as those of the formula RO (CH2CH2O) kCH2COO-M + in which R is a C8-C22 alkyl, k is an integer from 0 to 10, and M is a soluble cation of salt formation. The rosin acids and the hydrogenated rosin acids are also suitable, such as rosin, hydrogenated rosin, and resin acids and hydrogenated resin acids present in or derived from wood oil. Additional examples are given in "Surface Active Agents and Detergents" (Vol. I and II by Schwartz, Perry and Berch). A variety of such surfactants are also generally described in the US patent. 3,929,678, issued December 30, 1975 to Laughlin, et al, in column 23 row 28 to column 29 row 23.

. Colorant Liquid compositions according to the present invention may also be colored. According to this, they can comprise a colorant. The colorants suitable for use herein are stable colorants. By "stable" is meant herein a compound that is chemically and physically stable in the neutral to alkaline environment of the present compositions.

Conservative The compositions according to the present invention may further comprise a preservative as an optional ingredient. The preservatives for use in the present include all those known to the person skilled in the art of compositions for cleaning hard surfaces. The preservatives are desired in the present because they contribute to the stability of the present compositions. Suitable preservatives for use herein are diazolidinyl urea, triethyl citrate, 4-h idroxy propyl benzoate, sorbic acid, Na salt of p-hydroxybenzoate or glutaraldehyde or a mixture thereof.

Acid In order to maintain the pH of the present composition described, the composition may further comprise an acid, as an optional ingredient. Typically, the acids that will be used herein may be any organic or inorganic acid well known to those skilled in the art of hard surface cleaning compositions. Preferably, the organic acids for use herein have a pK of less than 7. Organic acids suitable for use herein, are those selected from the group consisting of citric acid, maleic acid, lactic acid, glycolic acid, acid succinic acid, glutaric acid and adipic acid, and mixtures thereof. A mixture of such acids suitable for use herein is commercially available from BASF under the tradename Sokalan® DCS. A preferred acid to be used herein is citric acid. Preferably, the inorganic acids for use herein have a pK of less than 3. The inorganic acids suitable for use herein are those selected from the group consisting of sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid and mixtures thereof. thereof. When the acids are used, they are typically present herein in amounts of between 0.5% and 10%, preferably between 1% and 8% and more preferably between 2% and 6% by weight of the total composition in particular when using acid citric.

Radical scavenger The compositions of the present invention may comprise a radical scavenger. Suitable radical scavengers for use herein include the mono- and d-hydroxy-substituted benzenes and their analogs, alkyl and aryl carboxylates and mixtures thereof. Preferred radical scavengers for use herein include di-tert-butyl hydroxytoluene (BHT), hydroxyquinone, di-tert-butyl hydroquinone, mono-tert-butyl hydroquinone, tert-butyl-hydroxy anisole, benzoic acid, toluic acid, catechol, t-butyl catechol, benzylamine, 1, 1, 3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane, n-propyl-gallate or mixtures thereof and highly preferred is the di- tert-butyl-hydroxytoluene. Such radical scavengers such as N-propyl gallate can be commercially available from Ñipa Laboratories under the trade name Nipanox S1®. Radical scavengers when used, are typically present herein in amounts of up to 10% and preferably from 0.001% to 0.5% by weight of the total composition. The presence of radical scavengers can contribute to the chemical stability of the compositions of the present invention.

Perfume The compositions according to the present invention may further comprise a perfume.

The perfumes suitable for use herein include materials that provide an olfactory aesthetic benefit and / or cover any "chemical" scent that the product may have. The main function of a small fraction of the highly volatile perfume components, low boiling (which have low boiling points), in these perfumes is to improve the fragrance aroma of the product itself, instead of impacting on the subsequent odor of the surface being cleaned. However, some of the less volatile, high-boiling perfume ingredients provide a fresh and clean impression to the surfaces, and it is desirable that those ingredients are deposited and are present on the dry surface. The perfume ingredients can be rapidly solubilized in the compositions, for example by the anionic detergent surfactants. The ingredients and perfume compositions suitable for use herein are those conventionally known in the art. The selection of any perfume component, or amount of perfume, is based solely on aesthetic considerations. Suitable perfume compositions and compositions can be found in the art including U.S. Pat. Nos: 4,145, 184, Brain and Cummins, issued March 20, 1979; 4,209,417, Whyte, issued June 24, 1980; 4,515,705, Moeddel issued May 7, 1985; and 4,152,272, Young, issued May 1, 1979, all of these patents are incorporated herein by reference. In general, the degree of substantivity of a perfume is approximately proportional to the percentages of noun material used. The relatively substantive perfumes contain at least 1%, preferably at least 10%, of substantive perfume materials. The substantive perfume materials are those aroma compounds that are deposited on surfaces through the cleaning process and are detectable with persons with normal olfactory acuity. Such materials typically have lower vapor pressures than those of the average perfume material. In addition, they typically have molecular weights of 200 and greater, and are detectable at levels below those of the average perfume material. The perfume ingredients useful herein, along with their flavor character, and their physical and chemical properties, such as boiling point and molecular weight, are given in "Perfume and Flavor Chemicals (Aroma Chemicals)", Steffen Arctander, published by the author, 1969, incorporated herein by reference. Examples of highly volatile, low-boiling perfume ingredients are: anethole, benzaldehyde, benzyl acetate, benzyl alcohol, benzyl formate, iso-bornyl acetate, camfen, ciscitral (neral), citronellal, citronellol, acetate of citronellyl, para-cymene, decanal, dihydrolinalol, dihydromyrcenol, dimethylphenyl carbinol, eucalyptol, geranial, geraniol, geranyl acetate, geranyl nitrile, cis-3-hexenyl acetate, hydroxycitronelai, d-limonene, linalool, linalool oxide, linalyl acetate, linalyl propionate, methyl anthralinate, alpha-methyl ionone, methylnonyl acetaldehyde, methylphenyl carbinyl acetate, laevo-menthyl acetate, menthone, iso-menthone, myrcene, myrcenyl acetate, mircenoi, nerol, neryl acetate, nonyl acetate, phenyl ethyl alcohol, alpha-pinene, beta-pinene, gamma-terpinene, alpha-terpineol, beta-terpineol, terplinyl acetate, and vertenex (para acetate) -butyl tertiary-cyclohexyl). Some natural oils also contain large percentages of highly volatile perfume ingredients. For example, bleach contains as main components: linalool; linalyl acetate, geraniol; and citronellol. Lemon oil and orange terpenes both contain 95% d-limonene. Examples of moderately volatile perfume ingredients are: amylcinnamic aldehyde, iso-amyl salicylate, beta-caryophyllene, cedrene, cinnamic alcohol, coumarin, dimethylbenzylcarbinyl acetate, ethyl vanillin, eugenol, iso-eugenol, flower acetate, heliotropin , 3-cis-hexenyl salicylate, hexyl salicylate, lyalium (para-tertiarybutyl-alpha-methyl hydrocinnamic aldehyde), gamma-methyl ionone, nerolidol, patchouli alcohol, phenylhexanol, beta-selinose, trichloromethylphenylcarbinyl acetate, triethyl citrate , vanillin, and veratraldehyde. Cedar terpenes are mainly composed of alpha-cedrene, beta-cedrene, and other sesquirterpenos of C? 5H2. Examples of less volatile, high-boiling perfume ingredients are: benzophenone, benzyl salicylate, ethylene brasylate, glaxolide (1, 3,4,6,7,8-hexahydro-4,6,6,7, 8,8-hexamethyl-cyclopenta-gamma-2-benzopyran), hexyl cinnamic aldehyde, liral (4- (4-hydroxy-4-methyl-pepentyl) -3-cyclohexene-10-carboxaldehyde), methyl cedrone, jasmonate dihydromethyl, methyl-beta-naphthyl ketone, musk ndanone, muskyl ketone, musk tibetan, and phenylethylphenyl acetate. The selection of any particular perfume ingredient is dictated primarily by aesthetic considerations. The present compositions may comprise a perfume ingredient, in amounts of up to 5.0%, preferably in amounts of 0.1% to 1.5% by weight of the total composition.

Chelating agent Another class of optional compounds for use herein includes chelating agents. The chelating agents can be incorporated in the compassions present in amounts in the scale of up to 10.0%, preferably from 0.01% to 5.0% by weight of the total composition. Phosphonate chelating agents suitable for use herein may include metalalcaliethane-1-hydroxy diphosphonates (HEDP), polyalkylene (alkylene phosphonate), as well as amino phosphonate compounds, including tri (methylene phosphonic acid) amino (ATMP), nitrilotrimethylene phosphonates (NTP), ethylene diamine tetramethylene phosphonates, and diethylenetriaminepentamethylene phosphonates (DTPMP). The phosphonate compounds may be present in their acid form or as salts of different cations on some or all of their acid functionalities. Preferred phosphonate chelating agents to be used herein are diethylene triamine pentamethylene phosphonate (DTPMP) and ethane 1-hydroxy diphosphonate (HEDP). Said phosphonate chelating agents are commercially available from Monsanto under the trade name DEQUEST®. Polyfunctionally substituted aromatic chelating agents may also be useful in the compositions herein. Consult the patent of E.U.A. 3,812,044, issued May 21, 1974, to Connor et al. Preferred compounds of this type in acid form are dihydroxydisulfonbenzenes such as 1,2-dihydroxy-3,5-disulfobenzene. A preferred biodegradable chelating agent for use herein is N, N'-disuccinic ethylenediamine acid, or alkali metal, alkaline earth, ammonium salts or ammonium substitutes thereof or mixtures thereof. The N, N'-disuccinic ethylenediamine acids, especially the (S, S) isomer, have been described extensively in the U.S. patent. 4,704,233, from November 3, 1987 to Hartman and Perkins. The N-disuccinic ethylenediamine acid is commercially available, for example, under the tradename ssEDDS® from Palmer Research Laboratories. Suitable amino carboxylates for use herein include ethylenediaminetetraacetates, diethylenetriaminepentaacetates, diethylenetriaminpentaacetate (DTPA), N-hydroxyethylethylenediamine triacetates, nitrile tri-acetates, ethylenediamine tetrapropionates, triethylenetetraaminehexa-acetates, ethanol-diglycine, propiiendiamine tetraacetic acid (PDTA). and di-acetic methylglycine acid (MGDA), both in their acid form, or in their alkali metal, ammonium and ammonium salt forms replaced. Particularly suitable amino carboxylates for use herein are diethylenetriaminepentaacetic acid, propylenediaminetetraacetic acid (PDTA) which is commercially available, for example, from BASF under the tradename Trilon FS® and methylglycine di-acetic acid (MGDA). Additional carboxylate chelating agents for use herein include salicylic acid, aspartic acid, glutamic acid, glycine, malonic acid, and mixtures thereof.

Bleaching agents The liquid compositions herein may also comprise a bleaching component. Any bleach known to those skilled in the art may be suitable for use herein including any peroxygen bleach as well as any hypoalite bleach. Peroxygen bleaches suitable for use herein include hydrogen peroxide or sources thereof. As used herein a "hydrogen peroxide" source refers to any compound that produces active oxygen when said compound is in contact with water. Water-soluble sources of hydrogen peroxide suitable for use herein include percarbonates, preformed percarboxylic acids, persilicates, persulfates, perborates, peroxides and / or organic and inorganic hydroperoxides.

Suitable hypoalite bleaches for use herein include chlorine release components such as, for example, alkali metal hypochlorites. Advantageously, the compositions according to the present invention are stable in the presence of this bleaching component. Although the alkali metal hypochlorites are preferred, other hypochlorite compounds may also be used herein and, for example, may be selected from calcium and magnesium hypochlorite. A preferred alkali metal hypochlorite to be used herein is sodium hypochlorite.

Bleach activators The compositions of the present invention comprising a peroxygen bleach may further comprise a bleach activator. By "bleach activator" is meant herein a compound that reacts with peroxygen bleach such as hydrogen peroxide to form a peracid. The perches obtained in this way constitute the activated bleach. Bleach activators suitable for use herein include those belonging to the class of esters, amides, imides or anhydrides. Examples of suitable compounds of this type are described in British patent GB 1 586 769 and GB 2 143 231 and a method for their formation in granular form is described in published European patent application EP-A-62 523. Suitable examples of said compounds to be used herein are . tetraacetylethylenedimine (TAED), sodium 3,5,5-trimethylhexanoyloxybenzene sulfonate, diperoxydodecanoic acid as described for example in the U.S. 4 818 425 and peroxyadipic acid nonyl amide as described, for example, in the US patent. 4 259 201 and n-nonanoyloxybenzenesulfonate (NOBS). Also suitable are the N-acyl caprolactams selected from the group consisting of benzoylcaprolactam, octanoylcaprolactam, nonanoylcaprolactam, hexanoylcaprolactam, decanoylcaprolactam, undecenoylcaprolactam, formylcaprolactam, acetylcaprolactam, propanoylcaprolactam, butanoylcaprolactam, pentanoylcaprolactam, substituted or unsubstituted, or mixtures thereof. A particular family of bleach activators of interest is described in EP 624 154, and acetyltriethyl citrate (ATC) is particularly preferred in that family. Acetyltriethyl citrate has the advantage that it is not harmful to the environment and is eventually degraded into citric acid and alcohol. Additionally, acetyltriethyl citrate has a good hydrolytic stability in the product with storage and is an efficient bleach activator. Finally, it provides good capacity for pH regulation of the composition.

Form of packaging of the compositions The present compositions can be packaged in a variety of packaging for suitable detergents known to the experts in the art. The liquid compositions are preferably packaged in conventional plastic detergent bottles. In one embodiment, the present compositions can be packaged in manually or electrically operated spray dispensing containers, which are typically made of synthetic organic polymer plastic materials. Accordingly, the present invention also encompasses liquid cleaning compositions of the invention packaged in a spray dispenser, preferably in a trigger spray dispenser or pump spray dispenser. In fact, said spray-type dispensers allow to apply uniformly to a relatively large area of a surface to be cleaned liquid cleaning compositions suitable for use in accordance with the present invention. Such spray-type dispensers are particularly suitable for cleaning vertical surfaces. Spray-type dispensers suitable for use in accordance with the present invention include manually operated trigger-type foam dispensers sold for example by Specialty Packaging Products, Inc. or Continental Spra, Inc. These types of dispensers are described, for example, in the US patent No. 4,701, 311 to Dunnining et al. and the patent of E.U.A. No. 4,646,973 and the patent of E.U.A. No. 4,538,745 both to Focarracci. Particularly preferred for use herein are spray type dispensers such as T8500® commercially available from Continental Spray International or T8100® commercially available from Canyon, Northern Ireland. In said dispenser the liquid composition is divided into fine drops of liquid that result in a spray that is directed on the surface to be treated. In fact, in said spray-type dispenser the composition contained in the body of said dispenser is directed through the head of the spray-type dispenser through energy communicated to a pumping mechanism by the user as said user activates the pumping mechanism. More particularly, in said spray-type dispenser head the composition is forced against an obstacle, for example, a grid or a cone or the like, thereby causing impacts to help atomize the liquid composition, i.e. to assist the formation of liquid drops.

Procedure to treat a hard surface. The present invention also encompasses a method for treating a hard surface in which a liquid composition as described herein is contacted with a hard surface. By "hard surfaces" it means in the present any type of surfaces that are typically found in homes, such as bathrooms, kitchens, or inside or outside of cars, for example, floors, walls, tiles, windows, sinks, showers, plastic shower curtains, sinks, toilets, tableware, furniture and accessories made of different materials such as ceramics, vinyl, non-wax vinyl, linoleum, melamine, glass, any plastics, laminated wood, metal or any surface painted or varnished or sealed and the like. Hard surfaces also include household appliances including, but not limited to, washing machines, automatic dryers, refrigerators, freezers, ovens, microwave ovens, dishwashers and so on. The liquid composition of the present invention can be contacted with the surface to be treated in its pure form or in its diluted form. By "dilute form" it is meant herein that said liquid composition is typically diluted by the user with water. The composition is diluted before being used at a typical dilution level of 10 to 40 times its weight of water, preferably 10 to 200 and more preferably 10 to 100. A normally recommended dilution level is a 1.2% dilution of the composition in water. By "in its pure form" it is meant that the liquid compositions are applied directly onto the hard surface to be treated without undergoing any dilution, ie, the liquid compositions herein are applied to the hard surface as described herein. A preferred method for treating a hard surface according to the present invention is to apply the composition in diluted form without rinsing the hard surface after application in order to obtain a "first time" and "next time" cleaning performance. "Excellent as well as providing good gloss to such hard surface.

Another preferred method for treating a hard surface is to apply the composition, described by the present invention, either in pure or diluted form, leave it on said surface to act, optionally carving said surface with a suitable instrument, for example, a sponge, and then preferably rinsing said surface with water. Hard surfaces that will be treated can become soiled with a variety of soils, for example, grease filth (eg, greasy soap residue, body fat, cooking grease or burned / sticky food residues typically found in a kitchen and similar). By "treatment" is meant herein, cleaning, since the composition according to the present invention provides excellent "first time" and "next time" cleaning performance over several spots, especially greasy spots.

Cleaning performance test method The diluted cleaning performance can be evaluated by the following test method: enamel, vinyl or ceramic slabs are prepared by applying an artificial dirt representative of grease / particulate material followed by maturation. The test compositions and the reference composition are diluted (eg, water composition 1: 50 or 1: 100), applied to a sponge, and used to clean the slabs with a Sheen carving tester. The number of rubs required to clean . 100% clean is recorded. A number of 6 replicas can be taken with each result being generated in duplicate against the reference on each dirty slab. The test method for evaluating pure cleaning performance is identical to the previous one except that the test and reference compositions are used undiluted and that after cleaning a rinse cycle with clean water is performed.

Greasy Soap Soap Cleaning Performance Test Method In this test method white enamel slabs (typically 24 cm x 4 cm) are covered with typical fatty soap soiling stains that are based primarily on calcium stearate and dirt commercially available artificial bodies (for example, 0.3 grams with a sprinkler). The dirty slabs are then dried in an oven at a temperature of 140 ° C for 20 minutes and then matured overnight at room temperature (approximately 20 ° C-25 ° C). Then the dirty slabs are cleaned using 3 ml of the liquid composition of the present invention poured directly onto a Spontex® sponge. The ability of the composition to remove dirt from greasy soap is measured by the number of rubs needed to perfectly clean the surface. While the number of rubs is lower, the cleansing ability of greasy soapy dirt of the composition is higher.

Next-time cleaning benefit test method In this test method a stainless steel or black ceramic key is treated with the liquid composition of the present invention by directly pouring said composition onto a Spontex® sponge and carving said slabs with the sponge. Then the slabs are rinsed thoroughly with tap water and left to dry. The soapy water (approximately 100 ml) is made to hit the dry surface and rinsed with running tap water (approximately 100 ml). The surface of the slabs is allowed to dry again and the process of bumping soapy water on the slabs is repeated for 4-6 times. The ability of the composition to provide next cleaning benefit on the surface refers to the ability of the composition to modify the surface in such a manner that the soapy water is more easily rinsed on surfaces treated with the liquid composition herein. invention compared to surfaces not treated with said composition. This can be evaluated by human visual grading.

Brightness test method Obtaining a good gloss final result results from a good dispersion of a liquid composition on the surface when the surface is treated with it and from the reduced formation of limestone deposits and reduced precipitation of water-soluble salts when the water evaporates. The ability of a composition to provide "gloss" to the surface refers to the ability of the composition not to leave limestones after the evaporation of water. This can be evaluated by human visual grading. In a suitable test method, a composition according to the present and a reference composition (approximately 3 grams of each product) are applied with a Spontex® sponge on two rectangular areas (20 cm x 20 cm) of a surface made of stainless steel or ceramic. Each surface is rubbed (16 impacts) using Spontex® sponge with the product. Then each treated surface is rinsed with 50 ml of tap water and allowed to dry. The articles are observed during the drying phase in a way to evaluate the dispersion / sliding of water on the treated surface. After the surfaces treated with the compositions according to the present invention and those treated with the reference composition are dried, they are compared side by side and evaluated by visual grading to evaluate the difference in brightness. The evaluation can be done in general by applying the panel rating unit (PSU). The brightness result is expressed by reporting whether the water dispersion / slip effect is present and the PSU evaluation. In a durable gloss test method, the test method can be carried out as mentioned above, but the rinse and dry cycles are repeated several times. Each time, after Both surfaces are dried and compared side by side and evaluated by visual grading to see the difference in brightness. The evaluation is usually done by applying the panel rating unit (PSU).

EXAMPLES These compositions were made by comprising the ingredients listed in the listed proportions (% by weight).

The pH of these examples is 7 or greater.

The pH of these examples is 7 or greater. Kelzan T® is a xanthan gum supplied by Kelco. Luviskol K60® is a polyvinylpyrrolidone supplied by BASF. n-BPP is butoxypropoxypropanol available commercially from Dow Chemical.

Dobanol® 91-8 is an ethoxylated Cg-Cn alcohol commercially available from Shell. Lutensol® AO 30 is a C12-14 ethoxylated alcohol commercially available from BASF.

Claims (20)

NOVELTY OF THE INVENTION CLAIMS

1. A liquid composition, having a pH of 7 to 14, comprising a nonionic surfactant, a vinylpyrrolidone homopolymer or copolymer and a polysaccharide polymer, with the proviso that said composition does not comprise an amphoteric surfactant.

2. The composition according to claim 1, further characterized in that said nonionic surfactant is selected from the group consisting of condensates of polyethylene oxide of alkylphenols, condensates of polyethylene oxide of alkyl alcohols and alkylpolysaccharides, or a mixture thereof. same.

3. The composition according to any of the preceding claims, further characterized in that said nonionic surfactant is an ethoxylated alkylphenol of C6-C20, having from 3 to 25 ethoxy groups, or a C2-C24 ethoxylated alcohol, having from 2 to 35 ethylene oxide units, or a mixture thereof.

4. The composition according to any of the preceding claims, further characterized in that the composition comprises from 0.1% to 20% by weight of the total composition of a nonionic surfactant. 6

5. The composition according to any of the preceding claims further characterized in that said vinylpyrrolidone homopolymer is a homopolymer of N-vinylpyrrolidone having the following repeating monomer: where n is an integer of 10 to 1,000,000.

6. The composition according to any of the preceding claims, further characterized in that said vinylpyrrolidone copolymer is a copolymer of N-vinylpyrrolidone and an alkylenically unsaturated monomer.

7. The composition according to claim 6, further characterized in that said alkylenically unsaturated monomer is selected from the group consisting of maleic acid, chloromaléic acid, fumaric acid, itaconic acid, citraconic acid, phenylemalic acid, aconitic acid, acrylic acid, N vinylimidazole, vinyl acetate, and anhydride thereof, styrene, sulfonated styrene, alpha-methyl styrene, vinyl toluene, t-butyl styrene and mixtures thereof.

8. The composition according to any of the preceding claims, further characterized in that said vinylpyrrolidone copolymer is a quaternized or non-quaternized acrylate or methacrylate copolymer of vinylpyrrolidone / dialkylaminoalkyl according to the following formula: wherein n is between 20 and 99 and preferably between 40 and 90 mol% and m is between 1 and 80 and preferably between 5 and 40 mol%; R1 represents H or CH3; "y" denotes 0 or 1; R2 is -CH2-CHOH-CH2 or CxH2x, wherein x = 2 to 18; R3 represents a lower alkyl group of 1 to 4 carbon atoms, or R4 denotes a lower alkyl group of 1 to 4 carbon atoms; X "is selected from the group consisting of Cl, Br, I, 1 / 2S04, HS04 and CH3SO3.

9. The composition according to any of the preceding claims, further characterized in that it comprises from 0.01% to 5% by weight of the total composition of a vinylpyrrolidone homopolymer or copolymer.

10. The composition according to any of the preceding claims, further characterized in that said polysaccharide polymer is a substituted cellulose material or a polysaccharide polymer that occurs naturally.

11. The composition according to any of the preceding claims, further characterized in that said polysaccharide polymer is carboxymethylceous, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxymethylcellulose, succinoglycan, xanthan gum, guar gum, locust bean gum, gum tragacanth or derivatives thereof, or mixtures thereof.

12. The composition according to any of the preceding claims, further characterized in that it comprises from 0.01% to 5% by weight of the total composition of a polysaccharide polymer.

13. The composition according to any of the preceding claims, further characterized in that it additionally comprises a source of alkalinity.

14. The composition according to any of the preceding claims, further characterized in that it additionally comprises a solvent.

15. - The composition according to claim 14, further characterized in that said composition comprises from 0.1% to 8% by weight of the total composition of said solvent.

16. The composition according to any of the preceding claims, further characterized in that said composition further comprises one or more ingredients selected from the group consisting of cationic surfactants, anionic surfactants, zwitterionic surfactants, radical scavengers, preservatives, chelating agents , acids, perfumes, dyes, bleach and bleach activators.

17. A process for treating a hard surface by applying a liquid composition according to any of the preceding claims on said surface.

18. The use of a nonionic surfactant, in addition to a homopolymer or copolymer of vinylpyrrolidone and a polysaccharide polymer, in a composition for treating a hard surface to provide a gloss benefit to said hard surface and / or provide a benefit of lasting shine to said hard surface.

19. The use of a nonionic surfactant, in addition to a homopolymer or copolymer of vinylpyrrolidone and a polysaccharide polymer, in a composition for treating a hard surface to reduce the formation of limescale deposits and / or watermarks on said hard surface when it comes into contact with water.

20. - The use of a nonionic surfactant, in addition to a homopolymer or copolymer of vinylpyrrolidone and a polysaccharide polymer, in a composition for treating a hard surface to provide a cleaning benefit "next time" to said surface.