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
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3723—Polyamines or polyalkyleneimines
• • 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
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/29—Sulfates of polyoxyalkylene ethers
• • 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
  • C11D1/83—Mixtures of non-ionic with anionic compounds
• • 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
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3707—Polyethers, e.g. polyalkyleneoxides
• • 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
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3715—Polyesters or polycarbonates
• • 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
  • C11D1/75—Amino oxides

Definitions

• the invention relates to liquid dishwashing compositions.
• the compositions have a robust surfactant system, they are relatively soluble in water and have an improved resistance to gelling.
• Liquid dishwashing compositions having good grease removal benefits are much desired by consumers and it is therefore necessary that these compositions should have a robust surfactant system.
• Such robust surfactant systems cause an increase in viscosity which renders such compositions inconvenient to use. Therefore, solvents are added which decrease the viscosity of the composition to an acceptable value. But a problem which occurs with these compositions is that the solvent tends to evaporate with time, and thus the compositions tend to gel.
• compositions which additionally comprise a hydrotrope which improves the solubility (and stability) of the composition.
• a hydrotrope which improves the solubility (and stability) of the composition.
• inorganic salts such as chlorine salts
• inorganic salts can negatively impact the solubility of the compositions, and furthermore can cause formulability or corrosivity problems. It is thus an object of the present invention to provide liquid dishwashing compositions, which comprise a robust surfactant system, which are easy to dissolve and which have an improved resistance to gelling.
• compositions of the present invention are liquid dishwashing compositions which comprise:
• the invention further encompasses a method of washing dishes with these compositions.
• Alkyl ethoxy sulfate surfactant Alkyl ethoxy sulfate surfactant :
• compositions herein comprise an alkyl ethoxy sulfate surfactant.
• alkyl ethoxy sulfate surfactant are according to formula (1 )
• R- ⁇ represents a straight chain or a branched alkyl group or an alkenyl group having 9 to 15 carbons
• n represents 0.5 to 7 of real number in average
• M shows an alkalic metal, alkaiic earth metal, ammonium group or alkanol substitution ammonium group. If the number of carbons of R ⁇ is less than 9, the detergency is insufficient, and if more than 16, the stability at low temperature of the composition deteriorates remarkably and is not preferable. Especially, preferable number of carbons is 10 to 13.
• the desirable range of the number of adduct moles of ethylene oxide is 0.5 to 3.
• compositions of the present invention comprise from 15% to 60% by weight of the total composition of such surfactant, or mixtures thereof, preferably from 15% to 40%, most preferably 20% to 30%.
• Amine oxide surfactant :
• compositions of the invention may further comprise an amine oxide surfactant.
• amine oxide surfactant are according to formula (2)
• R2 represents a straight chain or a branched alkyl group or an alkenyl group having 10 to 16 carbons
• R3 and R4 represent a methyl group or an ethyl group respectively.
• compositions of the present invention comprise from 0% to 30% by weight of the total composition of such surfactant, preferably 1 .5% to 15%, most preferably 1.5% to 10%.
• Magnesium ions :
• compositions of the invention from 0% to 2.0%, preferably 0.1 % to 2%, most preferably from 0.3% to 2% by weight of the composition, of magnesium ions may be added to the liquid detergent compositions of the invention for improved product stability, as well as improved sudsing and skin mildness.
• the magnesium ions are introduced by neutalization of the acid form of alkylethoxy surfactants with a magnesium oxide or magnesium hydroxide slurry in water. Normally, this method is limited by the amount of anionic surfactants in the composition.
• An alternative method is to use MgCI2, MgSO4 or other inorganic Mg salts. These materials are less desirable because they can cause corrosivity problems (chloride salts), decrease the solubility of the formulations, or cause formulatibility/stability problems in the compositions. It is desirable for these reasons to limit the addition of inorganic salts to less than 2%, preferably less than 1 % by weight of the anionic inorganic counterion.
• compositions of the invention comprise a solvent in an effective amount so that the viscosity of the compositions herein be of from 50 cps to 2000 cps, preferably 100 cps to 450 cps, most preferably from 100 cps to 350 cps, measured at 20°C, with a Brookfield viscometer, spindle no. 18.
• Suitable solvents for use herein include low molecular weight alcohols such as C1 -C1O' preferably C1-C mono- and dihydric alcohols, preferably ethyl alcohol, isoprop ⁇ l alcohol, propylene gl ⁇ col and hexylene glycol.
• low molecular weight alcohols such as C1 -C1O' preferably C1-C mono- and dihydric alcohols, preferably ethyl alcohol, isoprop ⁇ l alcohol, propylene gl ⁇ col and hexylene glycol.
• compositions herein typically comprise from 3% to 20% by weight of the total composition of an alcohol, or mixtures thereof, preferably 3% to 15%, most preferably 5% to 10%.
• Hydrotrope :
• compositions of the invention comprise a hydrotrope in an effective amount so that the compositions are appropriately soluble in water.
• appropriately soluble in water it is meant that the product dissolves quickly enough in water as dictated by both the washing habit and conditions of use. Products which do not dissolve quickly in water can lead to negatives in performance regarding grease cleaning, sudsing, ease of rinsing of product from dishes/glasses etc. or product remaining on dishes/glasses after washing.
• Suitable hydrotropes for use herein include anionic-type hydrotropes, particularly sodium, potassium, and ammonium xylene sulfonate (preferred), sodium, potassium and ammonium toluene sulfonate, sodium potassium and ammonium cumene sulfonate (most preferred), and mixtures thereof, and related compounds (as disclosed in U.S. Patent 3,915,903).
• compositions of the invention typically comprise from 1 .0% to 15% by weight of the total composition of a hydrotropic, or mixtures thereof, preferably from 3% to 10%, most preferably from 3% to 6%.
• Anti-gelling polymer
• compositions of the invention comprise an anti-gelling polymer which improves the compositions' resistance to gelling.
• Suitable polymers for use herein have a molecular weight of at least 500, preferably from 500 to 20000, more preferably 1000 to 5000, most preferably 1000 to 3000.
• compositions herein comprise from 0.5% to 6% by weight of the total composition of an anti-gelling polymer, or mixtures thereof, preferably 0.5% to 4%, most preferably 1 .5% to 3%.
• Suitable polymers for use herein include :
• polyalkylene glycols preferably polyethylene glycol and polypropylene glycol
• polyamines Particularly suitable polyamine polymer for use herein are alkoxylated or polyalkoxylated polyamines. Such materials can conveniently be represented as molecules of the empirical structures with repeating units :
• R is a hydrocarbyl group, usually of 2-6 carbon atoms;
• R 1 may be a C1-C20 hydrocarbon;
• the alkoxy groups are ethoxy, propoxy, and the like, and y is 2-30, most preferably from 10-20;
• n is an integer of at least 2, preferably from 2-20, most preferably 3-5;
• X- is an anion such as halide or methylsuifate, resulting from the quaternization reaction.
• polyethylene amines i.e., the polymerized reaction product of ethylene oxide with ethyleneimine, having the general formula :
• (EtO)y (BO)y when y 2-30.
• Particularly preferred for use herein is an ethoxylated polyethylene amine, in particular ethoxylated tetraethylenepentamine, and quaternized ethoxylated hexamethylene diamine.
• Suitable terephtalate polymers for use herein include polymers having the formula :
• each R ⁇ is a 1 ,4-phenylene moiety; the R ⁇ are essentially 1 ,2- propylene moieties; the R ⁇ are essentially the polyoxyethylene moiety - ⁇ CH2H2 ⁇ )q-CH2-CH2-; each X is ethyl or preferably methyl; each n is from about 12 to about 45; q is from about 12 to about 90; the average value of u is from about 5 to about 20; the average value of v is from about 1 to about 10; the average value of u + v is from about 6 to about 30; the ratio u to v is from about 1 to about 6.
• Hihgly preferred polymers for use herein are polymers of the formula :
• X can be any suitable capping group, with each X being selected from the group consisting of H, and alkyl or acyl groups containing from 1 to about 4 carbon atoms, preferably 1 to 2 carbon atoms, most preferably alkyl.
• the alkyl group may contain anionic, cationic or nonionic substituents such as sulphonate, sulphato, ammonium, hydroxy etc. groups
• n is selected for water solubility and is a range of values which generally averages from about 10 to about 50, preferably from about 10 to about 25.
• the R 1 moieties are essentially 1 ,4-phenylene moieties.
• the term "the R 1 moieties are essentially 1 ,4-phenylene moieties” refers to compounds where the R ⁇ moieties consist entirely of 1 ,4-phenylene moieties, or are partially substituted with other arylene or alkarylene moieties, alkylene moieties, alkenylene moieties, or mixtures thereof.
• Arylene and alkarylene moieties which can be partially substituted for 1 ,4-phenylene include 1 ,3-phenylene, 1 ,2-phenylene, 1 ,8-naphthylene, 1 ,4-naphthylene, 2,2-biphenylene, 4,4'-biphenylene and mixtures thereof.
• Alkylene and alkenylene moieties which can be partially substituted include ethylene, 1 ,2-propylene, 1 ,4-butylene, 1 ,5- pentylene, 1 ,6-hexamethylene, 1 ,7-heptamethylene, 1 ,8-octamethylene, 1 ,4-cyclohexylene, and mixtures thereof.
• the R ⁇ moieties consist entirely of (i.e., comprise 100%) 1 ,4-phenylene moieties, i.e. each R 1 moiety is 1 ,4-phenylene.
• suitable ethylene or substituted ethylene moieties include ethylene, 1 ,2-propylene, 1 ,2-butylene, 1 ,2-hexylene, 3- methoxy-1 ,2-propylene and mixtures thereof.
• the R 2 moieties are essentially ethylene moieties, or, preferably, 1 ,2-propylene moieties or mixtures thereof.
• R 2 moieties are 1 ,2-propylene moieties.
• the value for n averages at least about 10, but a distribution of n values is present.
• the value of each n usually ranges from about 10 to about 50.
• the value for each n averages in the range of from about 10 to about 25.
• the most preferred polymers for use herein are polymers according to the formula :
• X is methyl, n is 16, R ⁇ is 1 ,4-phenylene moiety, R 2 is 1 ,2- propylene moiety and u is essentially between 3 and 5.
• compositions herein can further comprise a number of optional ingredients described hereinafter.
• compositions of this invention preferably contain certain co- surfactant to aid in the foaming, detergency, and/or mildness. Included in this category are several anionic surfactants commonly used in liquid or gel dishwashing detergents. Examples of anionic co-surfactants that are useful in the present invention are the following classes :
• Alkyl benzene sulfonates in which the alkyl group contains from 9 to 15 carbon atoms, preferably 1 1 to 14 carbon atoms in straight chain or branched chain configuration.
• An especially preferred linear alkyl benzene sulfonate contains about 12 carbon atoms.
• U.S. Pat. Nos. 2,220,099 and 2,477,383 describe these surfactants in detail.
• Alkyl sulfates obtained by sulfating an alcohol having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms.
• the alkyl sulfates have the formula ROSO3 " M + where R is the Cs-22 a,k Yl 9 r °up and M is a mono- and/or divalent cation.
• Paraffin sulfonates having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms, in the alkyl moiety. These surfactants are commercially available as Hostapur SAS from Hoechst Celanese.
• Olefin sufonates having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms.
• U.S. Pat. No. 3,332,880 contains a description of suitable olefin sulfonates.
• Alkyl glyceryl ether sulfonates having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms, in the alkyl moiety.
• is straight or branched alkyl from about C ⁇ to C-
• R6 N(R7). wherein R*> is an alkyl group containing from 7 to 21 , preferably from 9 to 17, carbon atoms and each R? is selected from the group consisting of hydrogen, C1-C4 alkyl, C1-C4 hydroxyalkyi, and -(C2H4 ⁇ ) x H where x varies from 1 to about 3.
• R 1 is H, C1- 4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl, or a mixture thereof, preferably C1-C4 alkyl, more preferably C1 or C2 alkyl, most preferably C-j alkyl (i.e., methyl); and R 2 is a C5-C31 hydrocarbyl, preferably straight chain C7-C19 alkyl or alkenyl, more preferably straight chain C9-C17 alkyl or alkenyl, most preferably straight chain C-
• Z preferably will 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.
• Z preferably will be selected from the group consisting of -CH2-(CHOH) n - CH 2 OH, -CH(CH 2 OH)-(CHOH> n _i-CH2OH, -CH 2 -
• n is an integer from 3 to 5, inclusive, and R' is H or a cyclic or aliphatic monosaccharide, and alkoxylated derivatives thereof.
• R' is H or a cyclic or aliphatic monosaccharide, and alkoxylated derivatives thereof.
• Most preferred are glycityls wherein n is 4, particularly -CH 2 -(CHOH)4-CH 2 OH.
• R 1 can be, for example, N-methyl, N-ethyl, N-propyl, N- isopropyl, N-butyl, N-2-hydroxy ethyl, or N-2-hydroxy propyl.
• R 2 -CO-N ⁇ can be, for example, cocamide, stearamide, oleamide, lauramide, myristamide, capricamide, palmitamide, tallowamide, etc.
• Z can be 1 -deoxyglucityl, 2-deoxyfructityl, 1 -deoxymaltityl, 1 - deoxylactityl, 1 -deoxygalactityl, 1 -deoxymannityl, 1-deoxymaltotriotityl, etc.
• R is a hydrophobic group selected from the group consisting of alkyl groups containing from 10 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, alkyl aryl and aryl alkyl groups containing a similar number of carbon atoms with a benzene ring being treated as equivalent to about 2 carbon atoms, and similar structures interrupted by amide or ether linkages; each R ⁇ is an alkyl group containing from 1 to about 3 carbon atoms; and R 2 is an alkylene group containing from 1 to about 6 carbon atoms.
• Ethylene oxide condensates which can be broadly defined as compounds produced by the condensation of ethylene oxide groups (hydrophilic in nature) with an organic hydrophobic compound, which can be aliphatic or alkyl aromatic in nature.
• the length of the hydrophilic or polyoxyalkylene radical which is condensed with any particular hydrophobic group can be readily adjusted to yield a water- soluble compound having the desired balance between hydrophilic and hydrophobic elements.
• ethylene oxide condensates suitable as suds stabilizers are the condensation products of aliphatic alcohols with ethylene oxide.
• the alkyl chain of the aliphatic alcohol can either be straight or branched and generally contains from about 8 to about 18, preferably from about 8 to about 14, carbon atoms for best performance as suds stabilizers, the ethylene oxide being present in amounts of from about 8 moles to about 30, preferably from about 8 to about 14 moles of ethylene oxide per mole of alcohol.
• compositions can contain other optional components suitable for use in liquid dishwashing compositions such as perfume, dyes, opacifiers, enzymes, builders and chelants and pH buffering means so that the compositions herein generally have a pH of from 5 to 1 1 , preferably 6.5 to 8.5, most preferably 7 to 8.
• soiled dishes are contacted with an effective amount, typically from about 0.5 ml. to about 20 ml. (per 25 dishes being treated), preferably from about 3 ml. to about 10 ml., of the detergent composition of the present invention.
• the actual amount of liquid detergent composition used will be based on the judgement of user, and will typically depend upon factors such as the particular product formulation of the composition, including the concentration of active ingredients in the compositon, the number of soiled dishes to be cleaned, the degree of soiling on the dishes, and the like.
• the particular product formulation in turn, will depend upon a number of factors, such as the intended market (i.e., U.S., Europe, Japan, etc.) for the composition product.
• a liquid detergent composition of the invention is combined with from about 2000 ml. to about 20000 ml., more typically from about 5000 ml. to about 15000 ml. of water in a sink having a volumetric capacity in the range of from about 1000 ml. to about 20000 ml., more typically from about 5000 ml. to about 15000 ml.
• the soiled dishes are immersed in the sink containing the diluted compositions then obtained, where they are cleaned by contacting the soiled surface of the dish with a cloth, sponge, or similar article.
• the cloth, sponge, or similar article may be immersed in the detergent composition and water mixture prior to being contacted with the dish surface, and is typically contacted with the dish surface for a period of time ranged from about 1 to about 10 seconds, although the actual time will vary with each application and user.
• the contacting of cloth, sponge, or similar article to the dish surface is preferably accompanied by a concurrent scrubbing of the dish surface.
• Another method of use will comprise immersing the soiled dishes into a water bath without any liquid dishwashing detergent.
• a device for absorbing liquid dishwashing detergent such as a sponge, is placed directly into a separate quantity of undiluted liquid dishwashing compositon for a period of time typically ranging from about 1 to about 5 seconds.
• the absorbing device, and consequently the undiluted liquid dishwashing composition is then contacted individually to the surface of each of the soiled dishes to remove said soiling.
• the absorbing device is typically contacted with each dish surface for a period of time range from about 1 to about 10 seconds, although the actual dime of application will be dependent upon factors such as the degree of soiling of the dish.
• the contacting of the absorbing device to the dish surface is preferably accompanied by concurrent scrubbing. Examples
• the following compositions are made by mixing the listed ingredients in the listed proportions.

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)
• Detergent Compositions (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8226154

Family Applications (1)

Country Status (11)

Cited By (5)

Families Citing this family (12)

Citations (4)

Family Cites Families (11)

• 1996
  • 1996-06-28 DE DE69633116T patent/DE69633116T3/de not_active Expired - Lifetime
  • 1996-06-28 EP EP96870086A patent/EP0816479B2/en not_active Expired - Lifetime
  • 1996-06-28 AT AT96870086T patent/ATE273375T1/de not_active IP Right Cessation
  • 1996-06-28 ES ES96870086T patent/ES2227577T5/es not_active Expired - Lifetime
• 1997
  • 1997-06-23 CZ CZ984184A patent/CZ418498A3/cs unknown
  • 1997-06-23 WO PCT/US1997/009697 patent/WO1998000488A1/en not_active Application Discontinuation
  • 1997-06-23 AU AU34767/97A patent/AU3476797A/en not_active Abandoned
  • 1997-06-23 JP JP10504130A patent/JPH11513067A/ja active Pending
  • 1997-06-23 BR BR9710061A patent/BR9710061A/pt not_active Application Discontinuation
  • 1997-06-23 CN CN97197278A patent/CN1228112A/zh active Pending
  • 1997-06-27 AR ARP970102848A patent/AR007644A1/es unknown

Patent Citations (4)

Also Published As

Similar Documents

Legal Events