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
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2075—Carboxylic acids-salts thereof
  • C11D3/2079—Monocarboxylic acids-salts 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
  • 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
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
  • C11D1/146—Sulfuric acid esters
• • 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/825—Mixtures of compounds all of which are non-ionic
  • C11D1/8255—Mixtures of compounds all of which are non-ionic containing a combination of compounds differently alcoxylised or with differently alkylated chains
• • 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
  • 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
  • C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
• • 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
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/10—Carbonates ; Bicarbonates
• • 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
  • C11D3/2068—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
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
  • C11D1/143—Sulfonic acid esters
• • 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

Definitions

• the present invention relates to concentrated cleaning compositions. Although the present invention relates primarily to cleaning compositions for hard surfaces, it may also be of interest for other cleaning compositions including dishwashing and laundry detergent compositions.
• Concentrated cleaning compositions are well known in the art. Concentrated compositions are mainly characterized by the fact that they comprise a higher concentration of active ingredients compared to a conventional cleaning composition, and a problem which is typically encountered when formulating concentrated cleaning compositions is therefore the physical stability of such compositions. Indeed, because such compositions comprise a high amount of active ingredients in a limited amount of water, stability problems appear which lead, if not solved, to compositions which separate into several phases. This phenomenon affects the performance of the composition and is visually noticeable, thereby rendering such formulations unfit for commercialization.
• EP 316 726 discloses concentrated compositions in the form of microemulsions which comprise water, perfume, a surfactant and a so-called co-surfactant.
• the co-surfactant is said to reduce the interfacial tension at interfaces between dispersed and continuous phases of an emulsion of said surfactant, thereby creating a stable microemulsion.
• the so-called co-surfactants in the '726 publication are listed as specific glycol ethers, which are traditionally regarded as solvents in this field, or specific carboxylic acids.
• the co-surfactants in the '726 publication do not appear to participate to the overall cleaning performance of the product.
• a concentrated aqueous composition comprising a traditional long-chain surfactant, in combination with at least one short chain surfactant, i.e. with a hydrophobic group consisting of a Cg-C ⁇ o alkyl chain.
• Said short chain surfactants provide stability to the compositions herein and, in the same time, significantly boost the overall cleaning performance, especially grease cleaning, both in neat and dilute usage.
• compositions herein are stable clear concentrated cleaning compositions comprising from 10 % to 80 % by weight of the total composition of water, less than 15 % perfume and at least one long chain surfactant comprising a c l l ⁇ c 24 alkyl chain as its hydrophobic portion, or mixtures thereof, said compositions further comprising at least one co-surfactant consisting of a short chain surfactant comprising a Cg-C ⁇ o alkyl chain as its hydrophobic portion, or mixtures thereof, except where said short chain surfactant is an alkyl ether carboxylate, said alkyl chain as said hydrophobic portion is a C 6 -Cg alkyl chain.
• compositions of the present invention are concentrated aqueous compositions.
• concentrated it is meant herein that the compositions comprise from 10 % to 80 % by weight of the total composition of water, preferably from 15 % to 75 %, most preferably from 30 % to 75 %.
• the compositions according to the present invention are clear and stable.
• clear and stable it is meant herein that the compositions of the present invention are macroscopically substantially transparent, in the absence of any opacifier, and that said compositions do not macroscopically separate into separate phases during at least 1 month, at temperatures ranging from 4°C to 50°C, upon standing.
• compositions according to the present invention further comprise a long chain surfactant, or mixtures thereof. All surfactants have in common that they comprise a hydrophobic portion and a hydrophilic portion.
• long chain surfactants it is meant herein surfactants which comprise a Cin to C 2 4 alkyl chain as their hydrophobic portion.
• Such long chain surfactants are accordingly those conventionally used in this field and can be of any type.
• suitable long chain surfactants for use herein include C 11 -C 2 4 alkyl sulfates (C 11 -C 24 S ⁇ ) , alkyl ether sulfates (Cn-C 4 (OCH 2 CH )eS ⁇ 4) , alkyl sulfonates (C - C 24 S0 3 ), alkyl succinates (C 11 -C 24 OOCCH 2 CH COOZ) , alkyl carboxylates (Ci 1 -C 24 COOM) , alkyl ether carboxylates (C ⁇ - C 24 (OCH 2 CH ) e COOM) , alkyl sarcosinates (C 11 -C 24 CON(CH 3 )R) , alkyl sulfo succinates (C 11 -C 2 4 ⁇ CCH(S ⁇ 3M)CH COOZ) , amine oxides (C 11 -C 2 4RR'NO) , glucose amides (C 11 -C 2 4RR
• H or any counterion such as those known in the art, including Na, K, Li, NH 4 , amine, X is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof, R, R and R' ' ' are c - C5 alkyl groups, possibly functionalized with hydroxyl groups, R and R' are preferably C 1 -C 3 , most preferably methyl, R 1 ' is preferably 2-hydroxyethyl or 2 hydroxypropyl, G is a saccharide, preferably glucose, and g is of from 1.5 to 8. All these surfactants are well known in the art.
• compositions according to the present invention may comprise any of the above surfactants alone, or any combination thereof, depending on the end use envisioned.
• preferred long chain surfactants are selected from long chain alkyl sulfonates and long chain alkyl ethoxylates, and mixtures thereof.
• compositions according to the present invention further comprise at least one short chain surfactant, or mixtures thereof.
• short chain surfactants is as above for long chain surfactants, except that said alkyl group as said hydrophobic portion is a Cg to C ⁇ Q alkyl group, and where said short chain surfactant is an alkyl ether carboxylate, said alkyl chain in said hydrophobic portion is a Cg-Cg alkyl chain.
• suitable short chain surfactants for use herein include those listed herein above in the description of long chain surfactants, but with shorter alkyl chain.
• Preferred short chain nonionic surfactants for use herein are alkyl alkoxylates according to the formula C 6 - c l ⁇ ( O H 2 H 2)e( OCH 2 CH 2 CH 2)p OH ' where e and p representing respectively the degree of ethoxylation and propoxylation are independently of from 0 to 20, and that e+p>0.
• Most preferred short chain nonionic surfactants for use herein are those where e and p are such that e+p is from 3 to 10, particularly those where p is 0 and e is from 3 to 8.
• most preferred short chain nonionic surfactants for use herein are those where said short chain is a hydrocarbon chain comprising from 7 to 10 carbon atoms.
• Said preferred short chain nonionic surfactants for use herein can be manufactured by the processes well known to the man skilled in the art, such as condensation of the corresponding alcohol and alkylene oxide, but such short chain surfactants are more conveniently commercially available for instance from Sidobre under the trade name Mergital @ C4 (C8E04) , from Kolb under the trade names Imbentin e AG/810/050 and AG/810/080 (respectively C8-10EO5 and C8-10EO8) •
• Preferred short chain anionic surfactants for use herein are Cg-C 10 alkyl sulfates (Cs-C 10 S04) and alkyl sulfonates (C 6 -C 10 SO 3 ). Most preferred are the C6-C8 alkyl sulfates and sulfonates.
• Such short chain anionic surfactants can be made by well known sulphation or sulphonation processes followed by neutralization, but said anionic short chain surfactants are more conveniently commercially available, for instance from Rhone Poulenc under the trade name Rhodapon @ OLS, or from Witco under the trade name Witconate @ .
• compositions according to the present invention may comprise from 0.1 % to 50 % by weight of the total composition, preferably from 1% to 40%, most preferably from 1.5% to 30% of said short chain surfactants.
• the short chain surfactants herein act not only as active cleaning ingredients, but also as stabilizers. If short chain anionic surfactants are used, it is preferred to observe a minimum weight ratio of short chain anionic surfactant to longer chain surfactant of 1:10. If short chain nonionic surfactants are used, it is preferred to observe a minimum weight ratio of short chain nonionic to longer chain surfactant of 1:5.
• compositions herein may further comprise a variety of other optional ingredients including builders, alkanolamines, pH adjusting agents, perfumes in amounts of less than 15% by weight of the total composition, dyes, bleaches, enzymes and the like.
• a suds suppressing system in the compositions herein.
• Said suds suppressing system can advantageously be a mixture of 2- alkyl alkanols as described for instance in DE 40 21 265, or mixtures thereof, with a C 8 to C 22 fatty acid, or mixtures thereof.
• Such a system is particularly advantageous as both ingredients appear to act in synergy. Thus even a very low amount of said system is enough to control suds efficiently. Accordingly, said system is present in amounts of from 0.1% to 5% by weight of the total composition, preferably 0.5% to 3%.
• compositions herein do not require the presence of a stabilizing compound.
• stabilizing compound it is meant herein a compound whose sole function is to enhance the physical stability of the composition.
• Such compounds are typically xylene or toluene sulphonate salts, and glycol ethers, including ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether, dipropylene glycol methyl ether, propylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol monobutyl ether and other various solvents suvh as ethanol and butanol. Accordingly, the compositions of the present invention are preferably substantially free of such stabilizing compounds.
• the present invention further encompasses a method of cleaning a hard surface which comprises the steps of diluting a composition according to the preceding claims in water, then applying it to said hard surface.
• a method of cleaning a hard surface which comprises the steps of diluting a composition according to the preceding claims in water, then applying it to said hard surface.
• the compositions herein may be used both neat and diluted from 10 to 500 times. Examples
• compositions were evaluated for their physical stability at 4°C, at room temperature (20°C) , and at 50°C.
• Composition I which is not within the invention, was a gel at 4°C, and an emulsion at room temperature and at 50°C. All other compositions, within the invention, were clear transparent liquids in the same conditions.
• compositions were made by mixing the listed ingredients in the listed proportions.
• Palm Kernel Fatty Acid 0.4 0.4 1

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)
• Emergency Medicine (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)

Priority Applications (6)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26134951

Family Applications (1)

Country Status (11)

Cited By (4)

Families Citing this family (14)

Citations (2)

Family Cites Families (12)

• 1993
  • 1993-07-07 EP EP93870125A patent/EP0616026A1/en not_active Withdrawn
• 1994
  • 1994-03-14 CN CN 94192052 patent/CN1122611A/zh active Pending
  • 1994-03-14 WO PCT/US1994/002747 patent/WO1994021767A1/en active Application Filing
  • 1994-03-14 AU AU64073/94A patent/AU6407394A/en not_active Abandoned
  • 1994-03-14 NZ NZ263393A patent/NZ263393A/en unknown
  • 1994-03-14 JP JP6521160A patent/JPH08508765A/ja active Pending
  • 1994-03-14 BR BR9406013A patent/BR9406013A/pt not_active Application Discontinuation
  • 1994-03-14 CA CA 2158542 patent/CA2158542A1/en not_active Abandoned
  • 1994-03-17 MA MA23445A patent/MA23137A1/fr unknown
• 1995
  • 1995-09-15 NO NO953644A patent/NO953644L/no unknown
  • 1995-09-18 FI FI954396A patent/FI954396A/fi not_active Application Discontinuation

Patent Citations (2)

Also Published As

Similar Documents

Legal Events