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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • 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
  • C11D3/39—Organic or inorganic per-compounds
  • C11D3/3947—Liquid compositions
• • 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
  • C11D3/395—Bleaching agents
  • C11D3/3956—Liquid compositions

Definitions

• Bleach-containing compositions for bleaching various surfaces are well known in the art.
• liquid bleaching composition comprising a bleach, e g , a peroxygen bleach or a hypohalite bleach, and a substantially linear nonionic surfactant as described herein
• bleaching compositions of the present invention are also suitable for the bleaching of different types of surfaces including hard-surfaces like floors, walls, tiles, glass, kitchen surfaces, bathrooms surfaces, toilet bowls and/or dishes and the like, as well as fabrics More particularly, the bleaching compositions of the present invention are suitable for bleaching any type of fabrics including natural fabrics (e g , fabrics made of cotton viscose, linen, silk and wool), synthetic fabrics, such as those made of polymeric fibers of synthetic origin, as well as those made of both natural and synthetic fibers
• natural fabrics e g , fabrics made of cotton viscose, linen, silk and wool
• synthetic fabrics such as those made of polymeric fibers of synthetic origin, as well as those made of both natural and synthetic fibers
• EP-A-0 856 576 discloses bleaching compositions comprising a peroxygen bleach, ethoxylated nonionic surfactants and zwitte ⁇ onic betaine surfactants However, compositions as described herein are not disclosed
• the bleaching composition is a mixture of:
• a bleach preferably a peroxygen bleach or a hypohalite bleach, contributes to the excellent bleaching benefits of the bleaching compositions herein.
• Suitable organic or inorganic peracids for use herein include : persulphates such as monopersulfate; peroxyacids such as diperoxydodecandioic acid (DPDA); magnesium perphthalic acid; perlauric acid; phthaloyl amidoperoxy caproic acid (PAP); perbenzoic and alkylperbenzoic acids; and mixtures thereof.
• persulphates such as monopersulfate
• peroxyacids such as diperoxydodecandioic acid (DPDA); magnesium perphthalic acid; perlauric acid; phthaloyl amidoperoxy caproic acid (PAP); perbenzoic and alkylperbenzoic acids; and mixtures thereof.
• DPDA diperoxydodecandioic acid
• PAP phthaloyl amidoperoxy caproic acid
• perbenzoic and alkylperbenzoic acids and mixtures thereof.
• Suitable hypohalite bleaches for use herein include the alkali metal and alkaline earth metal hypochlorites, hypobromites, hypoiodites, chlorinated tnsodium phosphate dodecahydrates, potassium and sodium dichloroisocyanurates, potassium and sodium tnchlorocyanurates, N-chloroimides, N-chloroamides, N- chloroamines and chlorohydantoins
• Suitable alkalinity sources for use herein are the caustic alkalis, such as sodium hydroxide, potassium hydroxide and/or lithium hydroxide, and/or the alkali metal oxides such, as sodium and/or potassium oxide or mixtures thereof.
• a preferred alkalinity source is a caustic alkali, more preferably sodium hydroxide and/or potassium hydroxide.
• y and z are independent integers of froth 0 to 20; the sum of x+y+z is at least 1 , preferably from 1 to 15, more preferably from 2 to 15 and most preferably from 2 to 12; and R-j is H, a C ⁇ to C-22 alkyl chain, preferably a C ⁇ to C22 alkyl chain, or a C ⁇ to C28 alkyl benzene chain.
• the R group comprises only alkyl chains having an even number of carbon atoms forming said alkyl chain.
• in the formula disclosed above is Hydrogen.
• R-j in the formula disclosed above is a C ⁇ to C22 alkyl chain, preferably a Cs to C22 alkyl chain, or a C ⁇ to C28 alkyl benzene chain. More preferably, R-
• a significant stain removal performance benefit has been observed using a substantially linear nonionic surfactant in a bleaching composition when used in any laundry treating, i.e., cleaning and/or bleaching, operation.
• the substantially linear nonionic surfactants as disclosed herein are preferably based on fatty alcohols (i.e., higher aliphatic alcohols) coming from natural feedstock (i.e., naturally occurring raw materials as natural fats and oils) or are synthetically produced using ethylene as feedstock by the Ziegler process for the production of fatty alcohols (see Kirk-Othmer, Encyclopedia of Chemical Technology, 4 th Edition, vol. 1 , pages 894-903). Fatty alcohols coming from natural feedstock or produced by the Ziegler process have an even number of carbon atoms and at least 95% of the fatty alcohols molecules are linear (see Kirk-Othmer, Encyclopedia of Chemical Technology, 4 th Edition, vol. 1 , pages 901 and 903).
• the Applicant has found that the specific selected substantially linear nonionic surfactants having an even number of carbon atoms are particularly good surfactants, such that when formulated in the compositions herein, they provide superior cleaning.
• the bleaching performance may be evaluated as for the stain removal performance but the stains used are bleachable stains like coffee, tea and the
• the bleaching compositions herein comprise a peroxygen bleach as bleach
• the compositions according to the present invention further comprise another nonionic surfactant in addition to the ones mentioned herein before or a zwittenonic betaine surfactant or a mixture thereof
• the bleaching compositions herein comprise a peroxygen bleach as bleach
• the compositions according to the present invention further comprise a sulphonated anionic surfactant
• the Applicant has identified a synergy in the combination of sulphonated anionic surfactants and other surfactants as for example nonionic surfactants, preferably alkoxylated nonionic surfactants, as described in the Applicant's co-pending European Patent Application No. 98870251.0.
• 2 and C15 alkyl chains, n is 7), or Dobanol® 91-5 (HLB 1 1 6, R is a mixture of Cg and C-
• alkyl chains, n is 5), or Dobanol® 91-6 (HLB 12 5 , R is a mixture of Cg and C ⁇
• alkyl chains, n is 6), or Dobanol® 91-8 (HLB 13 7 , R is a mixture of Cg and C-j -
• polyhydroxy fatty acid amide surfactants are known in the art. In general, they can be made by reacting an alkyl amine with a reducing sugar in a reductive amination reaction to form a corresponding N-alkyl polyhydroxyamine, and then reacting the N-alkyl polyhydroxyamine with a fatty aliphatic ester or triglyceride in a condensation/amidation step to form the N- alkyl, N-polyhydroxy fatty acid amide product.
• Processes for making compositions containing polyhydroxy fatty acid amides are disclosed for example in GB patent specification 809,060, published February 18, 1959, by Thomas
• Suitable zwitterionic betaine surfactants for use herein contain both a cationic hydrophilic group, i.e., a quaternary ammonium group, and anionic hydrophilic group on the same molecule at a relatively wide range of pH's.
• the typical anionic hydrophilic groups are carboxylates and sulphonates, although other groups like sulfates, phosphonates, and the like can be used.
• a generic formula for the zwittenonic betaine surfactant to be used herein is
• Alkyl ethoxylated sulfates as well as alkyl propoxylated sulfates are contemplated herein Specific examples of substituted ammonium cations include methyl-, dimethyl-, trimethyl-ammonium and quaternary ammonium cations, such as tetramethyl-ammonium, dimethyl piperdmium and cations derived from alkanolamines such as ethylamine, diethylamine, t ⁇ ethylamine, mixtures thereof, and the like
• Exemplary surfactants are C12-C-I 8 alk V' polyethoxylate (1 0) sulfate (C ⁇
• linear alkyl sulphonate it is meant herein a non-substituted alkyl sulphonate wherein the alkyl chain comprises from 6 to 20 carbon atoms, preferably from 8 to 18 carbon atoms, and more preferably from 14 to 17 carbon atoms, and wherein this alkyl chain is sulphonated at one terminus.
• R is a C -C20 linear or branched, saturated or unsaturated alkyl group, preferably a C12-C18 alkyl group and more preferably a C ⁇ -C-j ⁇ alkyl group
• X+ is H or a cation, e g , an alkali metal cation (e g , sodium, potassium, lithium, calcium, magnesium and the like)
• Particularly suitable C ⁇ -C20 alkyl alkoxylated linear or branched diphenyl oxide disulphonate surfactants to be used herein are the C12 branched di phenyl oxide disulphonic acid and C-
• hydrophilic part of a given solvent it is meant herein all the groups O, CO, OH, of a given solvent
• Suitable terpenes are mono-and bicyclic monoterpenes, especially those of the hydrocarbon class, which include the terpmenes, terpmolenes, iimonenes and pmenes and mixtures thereof
• Highly preferred materials of this type are d-limonene, dipentene, alpha-pmene and/or beta- pmene
• pmene is commercially available form SCM Glidco (Jacksonville) under the name Alpha Pmene P&F® Terpene derivatives such as alcohols, aldehydes, esters, and ketones which have a hydrophilic index of less than 18 can also be used herein
• Such materials are commercially available as, for example, the ⁇ and ⁇ isomers of terpmeol and nalool
• Suitable hydrophilic solvents to be used herein include alkoxylated aliphatic or aromatic alcohols, aliphatic or aromatic alcohols, glycols or alkoxylated glycols, and mixtures thereof, all these solvents having a hydrophilic index of more than 18.
• Solvents when present, contribute to the excellent stain removal performance of the compositions used in a process as described herein.
• coconut Fatty Acid is commercially available from UNICHEMA under the name PRIFAC 5900®.
• R-] is a C8-C24 linear or branched alkyl or alkenyl group, aryl group, alkaryl group, preferably R-j is a C -C-j ⁇ alkyl or alkenyl group, more preferably a C-10- 15 alkyl or alkenyl group, even more preferably a C-10-C15 alkyl group;
• Suitable sihcones for use herein include any silicone and silica-silicone mixtures.
• Si cones can be generally represented by alkylated polysiloxane materials while silica is normally used in finely divided forms exemplified by silica aerogels and xerogels and hydrophobic silicas of various types. These materials can be incorporated as particulates in which the silicone is advantageously releasably incorporated in a water-soluble or water-dispersible, substantially non-surface- active detergent impermeable carrier. Alternatively, the silicone can be dissolved or dispersed in a liquid carrier and applied by spraying on to one or more of the other components.
• a preferred type of silicone compounds useful in the compositions herein comprises a mixture of an alkylated siloxane of the type herein above disclosed and solid silica
• the solid silica can be a fumed silica, a precipitated silica or a silica made by the gel formation technique
• the silica particles can be rendered hydrophobic by treating them with diakylsilyl groups and/or tnalkylsilane groups either bonded directly onto the silica or by means of silicone resin.
• a preferred silicone compound comprises a hydrophobic silanated, most preferably t ⁇ methylsilanated silica having a particle size in the range from 10 mm to 20 mm and a specific surface area above 50 m 2 /g
• Silicone compounds employed in the compositions according to the present invention suitably have an amount of silica in the range of 1 to 30% (more preferably 2.0 to 15%) by weight of the total weight of the silicone compounds resulting in silicone compounds having an average viscosity in the range of from 2 x 10- m 2 /s to 1 m 2 /s
• Preferred silicone compounds may have a viscosity in the range of from 5 x 10 " 3m 2 /s to 0.1 m 2 /s
• Particularly suitable are silicone compounds with a viscosity of 2 x 10 "2 m /s or 4.5 x 10 * 2 m 2 /s
• silicone compound is disclosed in Bartollota et al. U.S Patent 3 933 672.
• Other particularly useful silicone compounds are the self-emulsifying silicone compounds, described in German Patent Application DTOS 2 646 126 published April 28, 1977.
• An example of such a compound is DC-544®, commercially available from Dow Corning, which is a siloxane-glycol copolymer.
• compositions of the present invention may comprise a radical scavenger or a mixture thereof.
• Suitable radical scavengers for use herein include the well- known substituted mono and dihydroxy benzenes and their analogs, alkyl and aryl carboxylates and mixtures thereof.
• radical scavengers for use herein include di-tert-butyl hydroxy toluene (BHT), hydroquinone, di-tert-butyl hydroquinone, mono-tert-butyl hydroquinone, tert-butyl-hydroxy anysole, 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 di-tert-butyl hydroxy toluene.
• Such radical scavengers like N-propyl- gallate may be commercially available from Nipa Laboratories under the trade name Nipanox S1 ®.
• Radical scavengers when used are typically present herein in amounts ranging from up to 10% and preferably from 0.001 % to 0.5% by weight of the total composition.
• compositions according to the present invention may further comprise an antioxidant or mixtures thereof.
• compositions herein may comprise up to 10%, preferably from 0.002% to 5%, more preferably from 0.005% to 2%, and most preferably from 0.01 % to 1 % by weight of the total composition of an antioxidant.
• bleaching compositions herein comprise a peroxygen bleach
• said compositions may comprise a bleach activator or mixtures thereof
• bleach activator it is meant herein a compound which reacts with hydrogen peroxide to form a peracid
• the peracid thus formed constitutes the activated bleach
• Suitable bleach activators to be used herein include those belonging to the class of esters, amides, imides, or anhydrides
• suitable compounds of this type are disclosed in British Patent GB 1 586 769 and GB 2 143 231 and a method for their formation into a prilled form is described in European Published Patent Application EP-A-62 523
• Suitable examples of such compounds to be used herein are tetracetyl ethylene diamme (TAED), sodium 3,5,5 trimethyl hexanoyloxybenzene sulphonate, diperoxy dodecanoic acid as described for instance in US 4 818 425 and nonylamide of peroxyadipic acid as described for instance in
• said compositions may comprise a pH buffering component as an optional but preferred component
• the pH buffering component ensures that the pH of the composition is buffered to a pH value ranging from 8 to 14, preferably from 8.5 to 14, more preferably from 9 to 13.5, and most preferably 9.5 to 13.5 after the composition has been diluted into 1 to 500 times its weight of water.
• Suitable boron salts or mixtures thereof for use herein include alkali metal salts of borates and alkyl borates and mixtures thereof.
• Examples of boron salts include alkali metal salts of metaborate, tetraborate, octoborate, pentaborate, dodecaboron, borontrifluoride and alkyl borate containing from 1 to 12 carbon atoms, preferably from 1 to 4.
• Suitable alkyl borate includes methyl borate, ethyl borate and propyl borate.
• pH buffering components are selected from the group consisting of sodium carbonate, sodium silicate, sodium borate, sodium metaborate and mixtures thereof.
• the raw materials involved in the preparation of hypohalite bleaches usually contain by-products, e.g., calcium carbonate resulting in an amount of up to 0.4% by weight of by-product within the hypohalite composition. However, at such amount, the by-product will not have the buffering action defined above.
• by-products e.g., calcium carbonate resulting in an amount of up to 0.4% by weight of by-product within the hypohalite composition.
• the by-product will not have the buffering action defined above.
• Hypohalite bleach-containing compositions herein will preferably contain an amount of pH buffering component of from 0.5% to 9% by weight, preferably from 0.5% to 5% by weight, and more preferably in an amount of from 0.6% to 3% by weight of the composition.
• the liquid bleaching composition of the present invention is used by applying the bleaching composition to the fabric to be treated.
• liquid bleaching compositions can be used per se in neat or in diluted form.
• compositions for the bleaching of fabrics according to the present invention may be diluted with a solvent by the user, the preferred solvent is water. Such dilution may occur for instance in hand laundry applications as well as by other means such as in a washing machine.
• Said compositions may be used at a dilution level of up to 1500:1 (solventcomposition), preferably from 5:1 to 1000:1 and more preferably from 10:1 to 700:1 (solventcomposition).
• treating a fabric it is meant herein cleaning said fabric as the compositions herein comprise a substantially linear nonionic surfactant and bleaching/disinfecting said fabric as the compositions of the present invention comprise a bleach.
• a bleaching composition according to the present invention is contacted with the fabrics to be treated.
• the bleaching composition may be used in dilute or neat form. Where it is used diluted, the bleaching composition should remain in contact with the fabric for typically 1 to 60 minutes, preferably 5 to 30 minutes. Whereas, when the bleaching composition is used in its neat form, it should remain in contact with the fabric for a much shorter time, typically 5 seconds to 30 minutes, preferably 1 minute to 10 minutes.
• the liquid bleaching composition of the present invention is contacted to the fabrics in its neat form and the bleach according to the present invention is a hypohalite bleach
• the level of said hypohalite bleach is from 0.01 % to 5%, preferably from 0.1 % to 3.5%, more preferably from 0.2% to 2% and most preferably from 0.2% to 1 %.
• the present invention provides liquid hypohalite bleach-containing compositions that may be applied neat onto a fabric to bleach. It is preferred to perform the bleaching process herein before said fabrics are washed.
• compositions are made by combining the listed ingredients in the listed proportions (weight % unless otherwise specified).
• the following Examples are meant to exemplify compositions used in a process according to the present invention but are not necessarily used to limit or otherwise define the scope of the present invention.
• the compositions IX to XVI are comparative example compositions.
• Dobanol® 23-3 1.0 2.0 1.0 2.0 2.0 1.0 2.0 1.0
• Marlipal® 24-7 is a linear C12/C14 EO7 nonionic surfactants commercially available from Condea.
• Marlipal® 24-2 is a linear C12/C14 E02 nonionic surfactants commercially available from Condea.
• Dobanol® 91-10 is a mixed branched/linear C9-C1 1 EO10 nonionic surfactant commercially available from SHELL.

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Citations (6)

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• 1999
  • 1999-01-26 EP EP99870013A patent/EP1024188B1/en not_active Revoked
  • 1999-01-26 DE DE69924228T patent/DE69924228T2/de not_active Revoked
  • 1999-01-26 AT AT99870013T patent/ATE291076T1/de not_active IP Right Cessation
  • 1999-01-26 ES ES99870013T patent/ES2239838T3/es not_active Expired - Lifetime
• 2000
  • 2000-01-20 JP JP2000594894A patent/JP2002535447A/ja not_active Withdrawn
  • 2000-01-20 BR BR0007717-8A patent/BR0007717A/pt not_active IP Right Cessation
  • 2000-01-20 AU AU29689/00A patent/AU2968900A/en not_active Abandoned
  • 2000-01-20 CA CA002358867A patent/CA2358867A1/en not_active Abandoned
  • 2000-01-20 WO PCT/US2000/001386 patent/WO2000043485A1/en active Application Filing
  • 2000-01-21 PE PE2000000048A patent/PE20010023A1/es not_active Application Discontinuation
  • 2000-01-24 CO CO00003692A patent/CO5210961A1/es not_active Application Discontinuation
  • 2000-01-26 AR ARP000100332A patent/AR022426A1/es unknown
• 2001
  • 2001-01-20 TR TR2001/02148T patent/TR200102148T2/xx unknown

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