Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/36—Organic compounds containing phosphorus
  • C11D3/364—Organic compounds containing phosphorus containing nitrogen
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/221—Mono, di- or trisaccharides or derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
  • C11D3/228—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin with phosphorus- or sulfur-containing groups
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/36—Organic compounds containing phosphorus
  • C11D3/361—Phosphonates, phosphinates or phosphonites

Definitions

• This invention relates to surface treatment, particularly cleaning, compositions, containing surface-active agents, selected sugar phosphonates and conventional additives and optional components, exhibiting a range of desirable properties over a broad range of applications.
• the surface treatment compositions can be used in by known applications including detergent laundry compositions, dishwashing compositions, textile treatment compositions including textile softening compositions, hard surface cleaners, bleaching compositions and compositions suitable for use in industrial textile treatment applications and other conventional surface treatment compositions well known in the relevant domain.
• the surface treatment compositions herein comprise as a major constituent a binary active system containing, expressed in relation to the sum (100 %) of the components of the binary active system, usually from 99.9 % to 40 % of a surface-active agent and from 0.1 % to 60 % of a sugar phosphonate.
• EP 1 431 381 discloses fabric treatment compositions containing, among others, cationic ammonium-based fabric softening compounds and cationic guar gums.
• US 2007/0015678 describes modified polysaccharide polymers, in particular oxidized polymers containing up to 70 mole % carboxyl groups and up to 20 mole % aldehyde groups.
• the modified polysaccharides can be used in a variety of applications including water treatment.
• the modified polysaccharides can also be used in blends with other chemicals including conventional phosphonates.
• EP 1 090 980 discloses fabric rejuvenating technologies including compositions and methods. Phosphonates are used as builders and as metal sequestrants. 2-Phosphonobutane-1,2,4-tricarboxylic acid is preferred in that respect.
• EP 1 035 198 teaches the use of phosphonates as builders in detergent tablets. Phosphonates are also used in the tablet coating composition.
• EP 0 892 039 pertains to liquid cleaning compositions containing a non-ionic surfactant, a polymer, such as a vinyl pyrrolidone homopolymer or copolymer, a polysaccharide, such as a xanthan gum, and an amphoteric surfactant.
• a non-ionic surfactant such as a vinyl pyrrolidone homopolymer or copolymer
• a polysaccharide such as a xanthan gum
• amphoteric surfactant Conventional phosphonates e.g. diethylene triamino penta(methylene phosphonic acid) (DTPMP) can be used as chelating agents.
• DTPMP diethylene triamino penta(methylene phosphonic acid)
• EP 0 859 044 concerns liquid hard surface cleaners containing dicapped poly alkoxylene glycols capable of conferring soil removal properties to the surface to which the cleaner has been applied.
• the cleaner compositions can
• Oxygen bleach detergent technology/compositions containing heavy metal sequestrants such as phosphonobutane tricarboxylic acid, are described in EP 0 713 910 .
• Bleaching machine dishwashing compositions are illustrated in EP 0 682 105 .
• DTPMP are used as heavy metal ion sequestrants.
• the art chiefly aims at combining cumulative functionalities to thus yield additive results without providing, to any substantial degree, particularly within the context of surface treatment applications broadly, desirable benefits without being subject to incidental (secondary) performance negatives and/or without using multi component systems, which in addition to benefits can be subject to aleatory economic, environmental and/or acceptability shortcomings.
• percent or “%” as used throughout this application stands, unless defined differently, for “percent by weight” or “% by weight”.
• phosphonic acid and “phosphonate” are also used interchangeably depending, of course, upon medium prevailing alkalinity/acidity conditions. Both terms comprise the free acids as well as salts and esters of the phosphonic acids.
• surface active and “surfactant” are used interchangeably.
• Da stands for Dalton which is an alternative name for the atomic mass unit.
• DS means degree of substitution i.e. the number of substituents per monosaccharide unit.
• Average DP means the average number of monosaccharide units in the sugar polymer.
• DE stands for Dextrose Equivalent and represents the percentage of reducing end groups in the starch expressed as percent monosaccharide on dry weight basis.
• compositions of this invention concern surface treatment, particularly cleaning, compositions comprising a binary active system, expressed in relation to the sum (100 %) of the actives in said binary system, namely:
• the carbohydrate T moiety can be represented by polysaccharides, having a MW of up to about 350 kDa, selected from the group of: cellulose; starch; fructan; galactomannan; agar; chitosan; arabinogalactan; xylan; alginic acid; and derivatives thereof selected from; carboxyl; carboxyalkyl with from 1 to 6 carbon atoms in the alkyl chain; and C 2 -C 8 linear or branched hydroxyalkyl substituents.
• Suitable polysaccharide species have a MW of up to about 350 kDa. It is known that the MW of the individual polysaccharides per sé can e.g. in natural state be substantially higher than about 350 kDa. If such a polysaccharide is selected containing a higher MW (than 350 kDa) then it is obvious that a hydrolysate of the selected polysaccharide shall be used or that the polysaccharide polymer shall be depolymerised in a manner routinely known in the relevant domain. The lower number of monosaccharide units is structure induced and thus can the lower limit of the MW vary, in a known manner, depending upon the selected species.
• the term "about” in relation to the MW can mean up to 20% of 350 kDa i.e. up to 420 kDa, preferably up to 10 % of 350 kDa i.e. up to 390 kDa.
• the number (a) of phosphonate moieties bound to the polysaccharide T is within the range of from 0.01 to 3, expressed on the basis of the monosaccharide unit in the polysaccharide.
• the cellulose polysaccharide has a MW of from 500 Da to 350 kDa.
• Cellulose is a linear polymer of ⁇ -(1,4)-D-glucopyranose units; it may contain sub-additive levels of arabinoxylans.
• the starch polysaccharide has a MW of from 700 Da to 350 kDa.
• Starch consists of amylose and amylopectin which both consist of ⁇ -D-glucose units.
• Amylose consists of mostly unbranched chains of ⁇ -1,4-linked-D-glucose units whereas amylopectin is formed by non-random ⁇ -1 ⁇ 6 branching of the amylose-type structure.
• Starch is found in wheat, potatoes, tapioca and corn.
• the fructan polysaccharide for use herein comprise all oligo- and poly-saccharides which have a majority of anhydrofructose units.
• Fructans can have a polydisperse chain length distribution and can be straight-chain or branched. They may be linked by ⁇ -2,1 bonds as in inulin or by ⁇ -2,6 bonds as in levan.
• Suitable fructans comprise both products obtained directly from a vegetable or other source and products in which the average chain length has been modified (increased or reduced) by fractionation, enzymatic synthesis or hydrolysis.
• the fructans have an average chain length (DP) of at least 3 up to about 1000.
• Suitable fructans have a MW from 500 Da to 350 kDa, preferably from 500 Da to 15 kDa, in particular of from 600 Da to 12 kDa.
• a particularly preferred fructan is inulin - ⁇ -2,1 fructan- or a modified inulin.
• Galactomannan has a MW of from 800 Da to 350 kDa.
• Galactomannan is found in locust bean gum and contains primarily D-galacto-D-mannoglycan with varying ratios of D-galactose to D-mannose in the range from about 1 : 4 to 1 : 10.
• Galactomannan originating from guaran differs slightly from the material originating from locust bean gum in that the guaran material has a larger number of D-galactosyl units in the side chains.
• the agar polysaccharide has a MW of from 600 Da to 350 kDa.
• Agar is believed to predominantly consist of repeating units of alternating ⁇ -D-galactopyranosyl and 3,6-anhydro- ⁇ -L-galactopyranosyl units. Its systematic name is: (1,4)-3,6-anhydro- ⁇ -L-galactopyranosyl-(1 ⁇ 3)- ⁇ -D-galactopyran.
• Chitosan having a MW of from 500 Da to 350 kDa is a linear polymer of ⁇ -(1 ⁇ 4)-linked 2-amino-2-deoxy-D-glucose (D-glucosamine) residues.
• Polysaccharides containing amino groups, such as D-glucosamine units, constitute preferred species for use herein. Such compounds containing D-glucosamine are particularly preferred considering the convenient formation of the corresponding phosphonates by routinely converting the N-H bonds of the amino group.
• a specific example of a polysaccharide containing D-glucosamine is chitosan which can be enzymatically hydrolyzed to the corresponding oligosaccharide
• Suitable arabinogalactan polysaccharides have a MW of from 1000 Da to 350 kDa.
• Arabinogalactan is composed of D-galactopyranose and L-arabinofuranose residues in the form of a ⁇ -(1 ⁇ 3)-galactan main chain with side chains made up of galactose and arabinose units of various lengths.
• the ratio of D-galactose to L-arabinose can vary e.g. from 5 : 1 to 25 : 1.
• Arabinogalactan is a water-soluble gum found in concentrations up to 35% in the heartwood of larch.
• Xylan polysaccharides for use herein has a MW of from 800 Da to 350 kDa.
• Xylans consist of a backbone of ⁇ -(1 ⁇ 4)-D-xylopyranosyl units.
• arabinoxylans varying in the amount of single unit side chains of ⁇ -L-arabinofuranose attached to the O-3 or both the O-2 and O-3 of the xylosyl residues
• 4-O-methylglucuronoxylans with ⁇ -(1 ⁇ 2)-linked(4-O-methyl)glucoronosyl substituents
• arabino-glucuronoxylans can be distinguished.
• the xylosyl residues may additionally be acetylated at the O-2 or O-3 position.
• Xylans are generally present in lignified tissues or in the cell walls of cereals.
• Alginic acid polysaccharides herein have a MW of from 800 Da to 350 kDa.
• the alginate molecule is a linear copolymer of ⁇ -D-(1 ⁇ 4)-linked mannopyranosyluronic acid units and ⁇ -L-(1 ⁇ 4)-linked gulopyranosyluronic acid units. These (homo)polymeric units are linked together by segments that have a predominantly alternating copolymer composition.
• Arabinan polysaccharides for use herein have a MW of from 400 Da to 350 kDa.
• Arabinan is a polysaccharide which consists mainly of L-arabinose units. These polysaccharides can be extracted from plant materials such as sugar beet pulp.
• the structure of arabinans is quite complex.
• the primary chain consists of ⁇ -1,5- linked L-arabinofuranose units which is branched with additional L-arabinofuranose units.
• This hemicellulose also contains small amounts of other monosaccharide units such as L-rhamnose, D-mannose, D-galactose, D-xylose and D-glucose.
• the polysaccharide for use herein is most preferably represented by species of the group of: cellulose; starch; fructan; chitosan; and the derivatives thereof selected from; carboxyl; carboxyalkyl with from 1 to 6 carbon atoms in the alkyl chain; and C 2 -C 8 hydroxyalkyl substituents.
• the number (a) of phosphonate moieties bound to a polysaccharide of the group of starch, cellulose and chitosan is preferably of from 0.05 to 2 whereas if the polysaccharide is fructan a can preferably vary of from 0.05 to 2.5. In one particular execution, a fructan polysaccharide is used with a being of from 0.5 to 2.
• the carbohydrate can also be represented by saccharides which are free of aldehyde and/or keto groups. Such saccharides are also known as non-reducing sugars. The term "free” refers obviously to the carbohydrate as manufactured/obtained in natural state.
• Well known and preferred species of such non-reducing sugars include sucrose with a being from 1 to 8, trehalose with a being from 1 to 8 and raffinose with a being from 1 to 11.
• Monosaccharides having protected anomeric centers are well known in the technical domain. Monosaccharides with protected anomeric centers are usually called glycosides.
• the monosaccharide per sé can be represented by known species such as glucose, fructose, mannose, galactose, xylose and arabinose. Suitable monosaccharide species having protected anomeric centers can optionally contain amino groups such as D-glucosamine.
• the protecting group of the anomeric center is called the "aglycon” and can be represented by C 1 -C 50 linear, branched, cyclic or aromatic hydrocarbon moieties, optionally substituted by OH, COOH, NR' 2 , OR', SR' or A'O-[A-O] x - moieties wherein A is a C 2 -C 9 linear, branched, cyclic or aromatic hydrocarbon moiety, x is 1-100 and A' is selected from C 1 -C 50 , preferably C 1 -C 30 , linear, branched, cyclic or aromatic hydrocarbon moieties, optionally substituted by a C 1 -C 12 linear, branched, cyclic, or aromatic group, (which moiety and/or which group can be) optionally substituted by OH, COOH, F, OR' and SR' moieties, wherein R' has the meaning given above.
• the aglycon is connected to the monosaccharide via an oxygen atom, to thus form an acetal group, or via an S atom or an N atom to thus yield S-glycosides and N-glycosides respectively.
• Preferred species for use herein include C 1 -C 30 linear alkyl glycosides and benzyl glycosides. Particularly preferred species are represented by C 1 -C 16 linear, branched, cyclic or aromatic glycosides, such as aglycon species selected from methyl, ethyl, octyl, benzyl and dodecyl glycosides.
• Sugar alcohols with a being from 1 to 9 are well known and have found widespread commercial application.
• Preferred species of such sugar alcohols can be represented by sorbitol with a being from 1 to 6, anhydro-sorbitol with a being from 1 to 4, iso-sorbide with a being from 1 to 2, mannitol with a being from 1 to 6, erythritol with a being from 1 to 4, xylitol with a being from 1 to 5, lactitol with a being from 1 to 9 and isomalt with a being from 1 to 9.
• sugar alcohols are represented by sorbitol with a being from 1 to 6, iso-sorbide with the index a being from 1 to 2, anhydro-sorbitol with a being from 1 to 4, and mixtures of said sorbitol and said mannitol, with a being from 1 to 6, in ponderal ratios of 5 : 1 to 1 : 5, especially from 2 : 1 to 1 : 2.
• the C x -C y linear or branched hydrocarbon moiety is preferably linear or branched alkane-diyl with a respective chain length.
• Cyclic hydrocarbon moiety is preferably C 3 -C 10 -cycloalkane-diyl.
• Aromatic hydrocarbon moiety is preferably C 6 -C 12 -arene-diyl.
• the foregoing hydrocarbon moieties are substituted, it is preferably with linear or branched alkyl of a respective chain length, C 3 -C 10 -cycloalkyl, or C 6 -C 12 -aryl. All these groups can be further substituted with the groups listed with the respective symbols.
• a cyclic moiety is more preferred a cyclohexane moiety, in case of cyclohexane-diyl in particular a cyclohexane-1,4-diyl moiety.
• An aromatic moiety is preferably phenylene or phenyl, as the case may be, for phenylene 1,4-phenylene is particularly preferred.
• One or more, preferably one to five sugar phosphonates, are used in the composition of the invention.
• One or more, preferably one to ten surface active agents are used in the composition of the invention.
• the sugar phosphonates herein can be prepared by means of conventional measures routinely available in the relevant domain.
• the phosphonate moiety compound and a sugar can be combined, in an aqueous medium, by adding stoichiometric proportions of both species, thereby taking into consideration the required degree of substitution.
• a process for the manufacture of the sugar phosphonates of Claim 1 comprises reacting a phosphonate compound selected from Y-X-N(W)(ZPO 3 M 2 ) and Y-X-PO 3 M 2 wherein Y is a substituent the conjugated acid of which has a pKa equal to or smaller than 4, preferably equal to or smaller than 1, with a carbohydrate selected from the group of: polysaccharides having a MW of up to about 350 kDa and with a being from 0.01 to 3, based on the monosaccharide units of the polysaccharide; saccharides, which are substantially free of aldehyde and keto groups, with a being from 1 to 11; sugar alcohols with a being from 1 to 9; and monosaccharides having protected anomeric centers, containing optionally amino groups, with a being from 1 to 4; in aqueous medium, having a pH of 7 or higher, frequently a pH in the range of from 8-14, at a temperature generally above 0
• sucrose 8.55g (0.025 mole) of sucrose were mixed with 10g (0.125 mole) of 50% aqueous sodium hydroxide solution, 25g of water and 0.2g (0.0012 mole) of potassium iodide. To this solution was added under stirring 7.037g (0.025 mole) of 3-chloropropyl imino bis(methylene phosphonic acid). The mixture was heated under reflux for 10 hours.
• a solution of potassium iodide (20.6 g, 124 mmol) in water (97 g) was heated to 80°C. During heating of this solution inulin (70 g, 0.41 mol, average DP 25) was added. Then CPIBMPA (361 g, 1.24 mol) was slowly added in portions over a period of 120 minutes, while maintaining the pH at 11.5 by the simultaneous addition of aqueous sodium hydroxide (50%, 500 g, 6.25 mol). The reaction mixture was kept for another 16h at 80°C and then cooled to room temperature and the pH was adjusted to 9 using aqueous hydrochloric acid (6N).
• the crude reaction mixture was purified by membrane filtration in the manner described in example III to give a purified inulin phosphonate, which was characterised using 31 P, 13 C and 1 H-NMR.
• the DS amounted to 1.52 which corresponds to a reaction efficiency of 50%.
• a solution of potassium iodide (16.6 g, 0.1 mol) in water (154 g) was heated to 80°C. During heating of this solution sorbitol (106 g, 0.58 mol) was added. Then CPIBMPA (281 g, 1.00 mol) was slowly added in portions over a period of 120 minutes, while maintaining the pH at 11.5 by the simultaneous addition of aqueous sodium hydroxide (50%, 408 g, 5.1 mol). The reaction mixture was kept for another 16h at 80°C and then cooled to room temperature and the pH was adjusted to 9 using aqueous hydrochloric acid (6N). The DS of the sorbitol phosphonate was determined using 31 P, 13 C and 1 H-NMR as 1.1 which corresponds to a reaction efficiency of 64%.
• the DS of the purified 3-phosphono propyl inulin phosphonate is determined using 31 P, 13 C, and 1 H-NMR as 0.55, which corresponds to a reaction efficiency of 73%.
• 6-N aqueous hydrochloric acid
• the crude reaction mixture is purified by membrane filtration in the manner described in Example IX to give a purified 3-phosphonopropyl inulin, which is characterised using 31 P, 13 C and 1 H-NMR.
• the DS amounts to 1.6 which corresponds to a reaction efficiency of 52%.
• a solution of potassium iodide (18 g, 108 mmol) in water (200 g) is heated to 80°C in 15 minutes. During heating of this solution sucrose (120 g, 0.35 mol) is added. Then 3-CPPA (174 g, 1.1 mol) is slowly added in portions over a period of 2 h, while maintaining the pH at 12 by the simultaneous addition of aqueous sodium hydroxide. The reaction mixture is kept for another 16h at 80°C, cooled to room temperature and the pH is adjusted to 9 using aqueous hydrochloric acid (6N). The degree of substitution of the 3-phosphono propyl sucrose in the crude reaction mixture is determined using 31 P, 13 C and 1 H-NMR as 2.2 (per sucrose molecule) which corresponds to a reaction efficiency of 70 %.
• a solution of potassium iodide (16.6 g, 0.1 mol) in water (154 g) is heated to 80°C. During heating of this solution sorbitol (106 g, 0.58 mol) is added. Then CPPA (158 g, 1.00 mol) is slowly added in portions over a period of 2h, while maintaining the pH at 12 by the simultaneous addition of aqueous sodium hydroxide. The reaction mixture is kept for another 16h at 80°C and then cooled to room temperature and the pH is adjusted to 9 using aqueous hydrochloric acid (6N). The DS of the 3-phosphonopropyl sorbitol is determined using 31 P, 13 C and 1 H-NMR as 1.0, which corresponds to a reaction efficiency of 58%.
• the essential phosphonate compound herein can be neutralized, depending upon the degree of alkalinity/acidity required by means of conventional agents including alkali hydroxides, earth alkali hydroxides, ammonia and/or amines.
• Beneficial amines can be represented by alkyl, dialkyl and tri alkyl amines having e.g. from 1 to 20 carbon atoms in the alkyl group, said groups being in straight and/or branched configuration.
• Alkanol amines such as ethanol amines, di- and tri-ethanol amines can constitute one preferred class of neutralizing agents.
• Cyclic alkyl amines, such as cyclohexyl amine and morpholine, polyamines such as 1,2-ethylene diamine, polyethylene imine and polyalkoxy mono- and poly-amines can also be used.
• the treatment compositions can be used, in a conventional manner, for application in relation to all kind of surfaces.
• the like applications can be represented by: textile laundry; textile and industrial textile treatments, such as softening, bleaching and finishing; hard surface treatment; dishwasher use; glass and other applications well known in the domain of the technology.
• the treatment compositions comprise, as a major constituent a binary active system, expressed in relation to the sum (100 %) of the actives in said binary system, from 99.9% to 40% of a surface active agent and from 0.1% to 60% of a selected amino alkylene phosphonic acid.
• the treatment, preferably and particularly, cleaning compositions of this invention frequently contain surfactant ingredients in the range of from 2 to 50 %, more preferably of from 3 to 40 %.
• the sugar phosphonate ingredient herein can be used, in the actual treatment compositions, in sub additive levels in the range of from 0.001 to 4 %, preferably from 0.01 to 2 %.
• the phosphonate exhibits, within the context of the actual treatment composition, conventional phosphonate functionalities such as chelant, sequestrant, threshold scale inhibition, dispersant and oxygen bleach analogous properties, but, in addition, can provide, in part due to structural particularities of the essential phosphonate ingredient, additional synergistic functionalities in relation to e.g. optional ingredients, such as aesthetics e.g. perfumes, optical brighteners, dyes, and catalytic enhancers for enzymes, and also to provide improved storage stability to e.g. bactericides thus allow a reformulation of the composition without adversely affecting performance objectives.
• the essential phosphonate constituent very importantly, can greatly facilitate the environmental and regulatory acceptability of the treatment compositions herein.
• the treatment compositions can also comprise conventional additives and optional components which are used in art established levels and for their known functionalities.
• the surface active agents herein can be represented by conventional species selected from e.g. cationic, anionic, non-ionic, ampholytic and zwitterionic surfactants and mixtures thereof.
• the cleaning compositions can also comprise conventional additives and optional components which are used in art established levels and for their known functionalities.
• the surface active agents herein can be represented by conventional species selected from e.g. cationic, anionic, non-ionic, ampholytic and zwitterionic surfactants and mixtures thereof. Typical examples of the like conventional detergent components are recited.
• Useful surfactants include C 11-20 alkyl benzene sulfonates, C 10-20 alkyl sulfates, C 12-20 alkyl alkoxy sulfates containing e.g. 1-6 ethoxy groups and C 10-20 soaps.
• Suitable non-ionic surfactants can also be represented by amine oxides having the formula R,R',R"N ⁇ O wherein R, R' and R" can be alkyl having from 10 to 18 carbon atoms.
• Cationic surfactants include quaternary ammonium surfactants such as C 6-16 N-alkyl or alkenyl ammonium surfactants.
• Solid machine dishwashing composition containing a surfactant selected from cationic, anionic, non-ionic ampholytic and zwitterionic species and mixtures thereof in a level of from 2 to 40 %, a builder broadly in a level of from 5 to 60 %.
• Suitable builder species include water-soluble salts of polyphosphates, silicates, carbonates, polycarboxylates e.g.
• the dishwashing composition can also include a peroxybleach and an activator therefore such as TAED (tetra acetyl ethylene diamine).
• TAED tetra acetyl ethylene diamine
• Conventional additives and optional components including enzymes, proteases and/or lipases and/or amylases, suds regulators, suds suppressors, perfumes, optical brighteners, and possibly coating agents for selected individual ingredients. Such additives and optional ingredients are generally used for their established functionality in art established levels.
• Zeolite builder 25 Nonionic surfactant 10 Anionic surfactant 10 Calcium carbonate 10 Sodium meta silicate 3 Sodium percarbonate 15 TAED 3 Optical brightener 0.2 Polyvinyl pyrrolidone 1 Carboxymethyl cellulose 2 Acrylic copolymer 2 Enzymes 0.2-2 Perfumes 0.2-0.4 Phosphonates 0.1-2 Sodium sulphate balance to 100
• Phosphoric acid 1 Distearyl dimethyl ammonium chloride 10-20 Stearyl amine ethoxylate 1-3 Magnesium chloride (10%) 3 Perfume; dye 0.5 Phosphonate 0.1-2 Water balance to 100
• Sodium tripolyphosphate 40 Nonionic surfactant (low foaming) 3-10 Sodium carbonate 10 Sodium metasilicate 3 Sodium percarbonate 15 TAED 5 Acrylic copolymer 2 Zinc sulphate 0.1-2 Enzymes 0.2-2 Phosphonate 0.1-2 Sodium sulphate balance to 100
• compositions as described above for the treatment of surfaces in particular for textile laundry, textile and industrial textile treatment, such as softening, bleaching and finishing, hard surface treatment specifically cleaning, household and industrial dishwashing applications.
• a method for treating a surface comprising the step of applying a composition of the invention to that surface.
• compositions in accordance with this invention can be illustrated, directly and/or indirectly, by means of specific testing procedures some of which are shown in the following examples.
• the clay dispersion effectiveness is a significant parameter in many surface treatments such as textile cleaning. This property is demonstrated with the aid of the following testing procedure.
• This test is used to determine and compare the effectiveness of the phosphonate agents of this invention.
• a one liter 0.15%w/w solution of the selected phosphonate is prepared in tap water.
• the solution pH is brought to 11.5 by addition of a 50% sodium hydroxide aqueous solution.
• Kaolin (1g) is added and the liquid is agitated, at ambient temperature, until a homogeneous suspension is obtained.
• the suspension is then introduced in an Imhoff cone. Gradually a second phase appears at the bottom of the cone and its level is recorded at regular intervals (5, 15, 30, 60 and 120 minutes). The aspect and colour of the two phases were also recorded at the same intervals.
• the calcium tolerance is an indirect (qualifying) parameter for using selected phosphonate compounds in the presence of major levels of water hardness e.g. calcium and magnesium.
• a solution of the tested product is prepared in 1200ml of water so as to correspond to a 15ppm active acid solution in 1320ml.
• the solution is heated to 60°C and its pH adjusted to 10 by addition of a 50% sodium hydroxide solution.
• Turbidity is measured with a Hach spectrophotometer, model DR 2000, manufactured by Hach Company, P.O.Box 389, Loveland, CO 80539, USA and reported in FTU (*) units.
• Calcium concentration in the tested solution is gradually increased by increments of 200ppm calcium based on the tested solution.
• the pH is adjusted to 10 by addition of a 50% sodium hydroxide solution and turbidity is measured 10 minutes after the calcium addition. A total of 6 calcium solution additions are done.
• FTU Formazin Turbidity Units.
• This test is used to determine and compare the stain removal performance of selected detergent formulations.
• a typical base detergent formulation is prepared by mixing together 12 g of C 13 -C 15 oxo alcohol ethoxylated with 8 moles of ethylene oxide, 10 g of C 8 -C 18 coco fatty acid, 6 g of triethanolamine, 4 g of 1,2 propanediol, 15 g of C 10 -C 13 linear alkylbenzene sulfonate sodium salt, 3 g of ethanol and 50 g water. The first four ingredients are added in the indicated order and heated at 50°C until a uniform liquid is obtained before adding the other ingredients.
• the stain removal testing is conducted at 40°C in a tergotometer using one litre city water per wash to which are added 5g of the base detergent formulation and 100ppm as active acid of the tested phosphonate. Soil coupons are added to the liquid which is agitated at 100rpm during 30 minutes. After the washing cycle, the swatches are rinsed with city water and dried in the oven for 20 minutes at 40° C. The whiteness of the swatches is measured with the Elrepho 2000, made by Datacolor of Dietlikon, Switzerland. The equipment is standardized, in a conventional manner, with black and white standards prior to the measurement of the washed swatches. The Rz chromatic value is recorded for each swatch before and after the wash cycle.
• the bottle is immediately capped and placed in a shaker controlled at 60 °C for 20 hours. After 20 hours the bottles are removed from the shaker and about 50 ml of the hot solution are filtered using a syringe fitted with a 0.45 micron filter. This filtrate is diluted with 80ml of deionized water and stabilized with 1ml of the pH 10 buffer solution. Calcium in solution is titrated using a 0.01M EDTA solution and a calcium selective electrode combined with a calomel electrode.
• cloudy 1260 30 15 600 2 v. sl. cloudy 1280 40 15 800 2 v. sl. cloudy 1300 50 15 1000 1 sl. cloudy 1320 60 15 1200 1 sl. cloudy IP 1.52 1200 0 15 0 1 clear 1220 10 15 200 1 v. sl. cloudy 1240 20 15 400 1 v. sl. cloudy 1260 30 15 600 2 v. sl. cloudy 1280 40 15 800 2 v. sl. cloudy 1300 50 15 1000 1 v. sl. cloudy 1320 60 15 1200 1 v. sl.
• Dispersant Time in Minutes % Dispersion 5 15 30 60 120 Blank BP* 20 21.5 17.5 15 13 0 IP0.54 BP 0.3 0.65 1 1.25 1.5 88.5 IP1.1 BP 0 0 0 0 0 100 IP1.52 BP 0 0 0 0 100 * means bottom phase in ml.

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Molecular Biology (AREA)
• Emergency Medicine (AREA)
• Detergent Compositions (AREA)

Priority Applications (2)

Applications Claiming Priority (1)

Publications (1)

Family

ID=39524893

Family Applications (1)

Country Status (2)

Cited By (2)

Families Citing this family (1)

Citations (12)

• 2008
  • 2008-01-22 EP EP08100759A patent/EP2090645A1/de not_active Withdrawn
• 2009
  • 2009-01-21 WO PCT/EP2009/050670 patent/WO2009092740A1/en active Application Filing

Patent Citations (12)

Also Published As

Similar Documents

Legal Events