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
  • C11D1/835—Mixtures of non-ionic with cationic 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
  • C11D1/662—Carbohydrates or derivatives
• • 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
  • C11D1/38—Cationic compounds
  • C11D1/62—Quaternary ammonium 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
  • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

• This invention relates to laundry detergent compositions which exhibit surprisingly effective detergency as well as fabric softening and static control, even in the total absence of detergency builder materials. Specifically, completely unbuilt compositions of the present invention have demonstrated the ability to provide good detergency, fabric softening and static control.
• Other detergent compositions which utilize mixtures of selected nonionic surfactants and cationic surfactants are defined in U.S. Patents 4,259,217 and 4,222,905, both of which are incorporated herein by reference.
• compositions of the present invention have excellent cleaning capabilities and are relatively insensitive to water hardness conditions, performing well in both hard and soft water conditions. Finally, in addition to this cleaning performance, the present invention provides, in a single detergent product, fabric softening and static control to the laundered fabrics.
• the present invention relates to low- or no-phosphate laundry detergent compositions, especially beneficial for good cleaning and the effective provision of softening and antistatic benefits, having a pH in the laundry solution of greater than about 7, and, preferably, containing no more than about 15% phosphate, and no more than about 10% silicate materials, which comprise from about 5% to about 100%, by weight, of a surfactant mixture consisting essentially of:
• compositions of the present invention comprise, by weight, from about 5 to about 100%, preferably from about 15 to about 90%, and most preferably from about 20 to about 80%, of a mixture of particularly defined nonionic, alkylpolysaccharide and cationic surfactants in the ratios stated herein.
• Preferred compositions contain at least about 15% of the nonionic/alkyl- polysaccharide/cationic surfactant mixture and at least about 11 of the cationic component, itself, in order to assure the presence of a sufficient amount of both the cationic surfactant and the mixture to provide the desired cleaning and fabric conditioning benefits.
• compositions of the present invention contain the nonionic, alkylpolysaccharide and cationic surfactants, defined hereinafter, within ratios of nonionic and alkylpolysaccharide to cationic surfactant of from about 2:1 to about 12:1, preferably from about 3:1 to about 9:1 for cleaning; and most preferably from about 4:1 to about 9:1, in order to achieve the best soil removal performance.
• compositions of the present invention are formulated so as to have a pH of at least about 7 in the laundry solution, at conventional usage concentrations, in order to optimize their overall cleaning performance, to aid in their manufacturing and processing, and to minimize the possibility of washing machine corrosion.
• Alkalinity sources such as potassium hydroxide, potassium carbonate, potassium bicarbonate, sodium hydroxide, sodium carbonate and sodium bicarbonate, may be included in the compositions for this purpose.
• Some of the cationic/nonionic systems of the present invention may attain optimum removal of greasy/oily soils at higher pH's, while attaining optimum particulate soil removal at relatively lower pH's. I n these systems, overall performance may be enhanced by varying the pH of the wash solution during the laundering process.
• compositions have a pH of at least about 8 in the laundry solution, in order to optimize the removal of greasy/oily and body soils.
• these preferred compositions should also have the ability to maintain a pH in the laundry solution of from about 8 to 11 throughout the washing operation (reserve alkalinity).
• a reserve alkalinity may be obtained by incorporating compounds which buffer at pH's of from about 8 to 11, such as monoethanolamine, diethanolamine or triethanolamine.
• compositions of the present invention are also essentially free of oily hydrocarbon materials and solvents, such as mineral oil, paraffin oil and kerosene, since these materials, which are themselves oily by nature, load the washing liquor with excessive oily material, thereby diminishing the cleaning effectiveness of the compositions.
• oily hydrocarbon materials and solvents such as mineral oil, paraffin oil and kerosene
• the nonionic cosurfactant interacts with the alkylpolysaccharide surfactant of this invention to provide good laundry detergency for a wide range of fabrics.
• the all ⁇ ylpolysaccharides are those having a hydrophobic group containing from about 6 to about 30 carbon atoms, preferably from about 10 to about 16 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group containing from about 11 to about 10, preferably from about 12 to about 3, most preferably from about 1.6 to about 2.7 saccharide units. Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g.
• glucose, galactose and galactosyl moieties can substitute for the glucosyl moieties.
• the hydrophobic group is attached at the 2, 3, 4 etc. positions thus giving a glucose or galactose as opposed to a glucoside or galactoside.
• the intersaccharide bonds can be, e.g., between the one position of the additional saccharide units and the 2-, 3-, 4-, and/or 6 positions on the preceding saccharide units.
• a polyalkoxide chain joining the hydrophobic moiety and the polysaccharide moiety.
• the preferred alkoxide is ethylene oxide.
• Typical hydrophobic groups include alkyl groups, either saturated or unsaturated, branched or unbranched containing from about 8 to about 18, preferably from about 10 to about 16 carbon atoms.
• the alkyl group is a straight chain saturated alkyl group.
• the alkyl group can contain up to 3 hydroxy groups and/or the polyalkoxide chain can contain up to about 10, preferably less than 5, most preferably 0, alkoxide moieties.
• Suitable alkyl polysaccharides are octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, and octadecyl, di-, tri-, tetra-, penta-, and hexaglucosides, galactosides, lactosides, glucoses, fructosides, fructoses, and/or galactoses.
• Suitable mixtures include coconut alkyl, di-, tri-, tetra-, and pentaglucosides and tallow alkyl tetra-, penta-, and hexaglucosides.
• the preferred alkylpolyglycosides have the formula wherein R is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which said alkyl groups contain from about 10 to about 18, preferably from about 12 to about 14 carbon atoms; n is 2 or 3, preferably 2; t is from 0 to about 10, preferably 0; and x is from 11 ⁇ 2 to about 10, preferably from about 11 ⁇ 2 to about 3, most preferably from about 1.6 to about 2.7.
• the glycosyl is preferably derived from glucose.
• the alcohol or alkylpolyethoxy alcohol is formed first and then reacted with glucose, or a source of glucose, to form the glucoside (attachment at the 1-position).
• the additional glycosyl units are attached between their 1-position and the preceding glycosyl units 2-, 3-, 4- and/or 6- position, preferably predominately the 2-position.
• the content of alkylmonoglycoside is low, preferably less than about 60%, more preferably less than about 50%.
• Nonionic surfactants including those having an HLB of from about 5 to about 17, are well known in the detergency art. They are included in the compositions of the present invention together with the, e.g., alkylpolyglycoside surfactants defined hereinbefore. They may be used singly or in combination with one or more of the preferred alcohol ethoxylate nonionic surfactants, described below, to form nonionic surfactant mixtures useful in combination with the alkylpolyglycosides. Examples of such surfactants are listed in U.S. Pat. No. 3,717,630, Booth, issued Feb. 20, 1973, and U.S. Pat. No. 3,332,880, Kessler et al, issued July 25, 1967, each of which is incorporated herein by reference. Nonlimiting examples of suitable nonionic surfactants which may be used in the present invention are as follows:
• the conventional nonionic detergent surfactants which are preferred for use in the compositions of the present invention are biodegradable and have the formula R(OC 2 H 4 ) n OH, wherein R is a primary alkyl chain containing an average of from about 10 to about 18, preferably from about 10 to about 16, carbon atoms, and n is an average of from about 2 to about 9, preferably from about 2 to about 7.
• These nonionic surfactants have an HLB (hydrophilic-lipophilic balance) of from about 5 to about 14, preferably from about 6 to about 13.
• HLB an indicator of a surfactant's hydrophilic or lipophilic nature, is defined in detail in Nonionic Surfactants, by M. J. Schick, Marcel Dekker, Inc., 1966, pages 607-613, incorporated herein by reference.
• Preferred nonionic surfactants for use in the present invention include the condensation product of coconut alcohol with 5 moles of ethylene oxide; the condensation product of coconut alcohol with 6 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 9 moles of ethylene oxide; the condensation product of C 14-15 alcohol with 2.25 moles of ethylene oxide; the condensation product of C14-15 alcohol with 7 moles of ethylene oxide; the condensation product of C 9-11 alcohol with 8 moles of ethylene oxide, which is stripped so as to remove unethoxylated and lower ethoxylate fractions; the condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, and this same alcohol ethoxylate which is stripped so as to remove unethoxylated and lower ethoxylate fractions.
• a preferred class of such surfactants utilize alcohols which contain about 20% 2-methyl branched isomers, and are commercially available, under the tradename Neodol, from Shell Chemical Company.
• the condensation product of tallow alcohol with 9 moles of ethylene oxide is also a preferred nonionic surfactant for use herein.
• Particularly preferred nonionic surfactants for use in the compositions of the present invention include the condensation product of coconut alcohol with 5 moles of ethylene oxide, the condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide, the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide, and mixtures of those surfactants.
• nonionic surfactants well known in the detergency art may be used, in combination with one or more of the required nonionic surfactants, to form useful nonionic surfactant mixtures. Examples of such surfactants are listed in U.S. Pat. No. 3,717,630, Booth, issued Feb. 20, 1973, and U.S. Pat. No. 3,332,880, Kessler et al, issued July 25, 1967, both of which are incorporated herein by reference.
• Nonlimiting examples of suitable nonionic surfactants which may be used in conjunction with the required nonionic surfactants, defined above, are: polyethylene oxide condensates of alkyl phenols, such as the Igepal surfactants, marketed by the GAF Corporation, and the Triton surfactants, marketed by the Rohm & Haas Company; condensation products of aliphatic alcohols with from about 10 to about 25 moles of ethylene oxide, where those alcohols are of a primary, branched or secondary alkyl chain structure; condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol, such as Pluronic surfactants, marketed by Wyandotte Chemical Corporation; and condensation products of ethylene oxide with the product resulting from the reaction of propylene oxide and ethylene diamine, such as the Tetronic surfactants, marketed by Wyandotte Chemical Corporation.
• polyethylene oxide condensates of alkyl phenols such as the Igepal surfactants, marketed by the G
• compositions of the present invention are substantially free of fatty acid polyglycol ether di-ester compounds, such as polyethylene glycol-600-dioleate or polyethylene glycol-800-distearate.
• fatty acid polyglycol ether di-ester compounds such as polyethylene glycol-600-dioleate or polyethylene glycol-800-distearate.
• the cationic surfactants used in the compositions of the present invention are of the di-long chain quaternary ammonium type, having two chains which contain an average of from about 16 to about 22, preferably from about 16 to about 18, carbon atoms.
• the remaining groups, if any, attached to the quaternary nitrogen atom are preferably C 1 to C 4 alkyl or hydroxyalkyl groups.
• the long chains be alkyl groups, these chains can contain hydroxy groups or can contain heteroatoms or other linkages, such as double or triple carbon-carbon bonds, and ester, amide, or ether linkages, as long as each chain falls within the carbon atoms ranges required given above.
• Preferred cationic surfactants are those having the formulae wherein the R 1 and R groups contain an average of from about 16 to about 22 carbon atoms, preferably as alkyl groups, and most preferably contain an average of from about 16 to about 18 carbon atoms, R 3 and R 4 are C 1 to C 4 alkyl or hydroxyalkyl groups, and X is any compatible anion, particularly one selected from the group consisting of a halide (e.g., chloride), hydroxide, methylsulfate, or acetate anions.
• a halide e.g., chloride
• cationic surfactants can also be mixed with other types of cationic surfactants, such as sulfonium, phosphonium, and mono- or tri-long chain quaternary ammonium materials, as long as the amount of required cationic surfactant contained in the composition, falls with the nonionic: cationic ratio requirements specified herein.
• cationic surfactants which can be used together with those required herein, include those described in U.S. Pat. 4,259,217, Murphy, U.S. Pat. 4,222,905, Cockrell, U.S. Pat. 4,260,529, Letton, and U.S. Pat. 4,228,042, Letton, which are incorporated herein by reference.
• Preferred cationic surfactants include ditallowalkyldimethyl (or diethyl or dihydroxyethyl) ammonium chloride, ditallowalkyldimethylammonium methyl sulfate, dihexadecylalkyl (C 16 ) dimethyl (or diethyl, or dihydroxyethyl) ammonium chloride, dioctodecyl- alkyl (C 18 )-dimethylammonium chloride, dieicosylalkyl-(C20) dimethylammonium chloride, methyl (I) tallowalkyl amido ethyl (2) tallowalkyl imidazolinium methyl sulfate (commercially available as Varisoft 475 from Ashland Chemical Company), or mixtures of those surfactants.
• Particularly preferred cationic surfactants are ditallowalkyldimethylammonium methyl sulfate, methyl (I) tallowalkyl amido ethyl (2) tallowalkyl imidazolinium methyl sulfate, and mixtures of those surfactants, with ditallowalkyldimethylammonium chloride being especially preferred.
• compositions of the present invention can be formulated so as to be substantially free of ethoxylated cationic surfactants which contain more than an average of about 10, and preferably free of those which contain more than an average of about 7, moles of ethylene oxide per mole of surfactant. It is to be noted that polyethoxylated cationic surfactants having relatively low levels of ethoxylation, i.e., those with less than 10, and particularly less than 7, ethylene oxide groups exhibit better biodegradability characteristics.
• the detergent compositions additionally contain from about 2 to about 25%, preferably from about 2 to about 16%, and most preferably from about 2 to about 10% of a fatty amide surfactant, such as ammonia amides (e.g., coconut ammonia amides), diethanol amides, and ethoxylated amides.
• a fatty amide surfactant such as ammonia amides (e.g., coconut ammonia amides), diethanol amides, and ethoxylated amides.
• ammonia amides e.g., coconut ammonia amides
• diethanol amides e.g., diethanol amides
• ethoxylated amides e.g., ethoxylated amides.
• the ratio of the cationic/nonionic mixture to the amide component in the composition is in the range of from about 5:1 to about 50:1, preferably from about 8:1 to about 25:1:
• amide components may also be added in small amounts, i.e., from about 2% to about 5%, to act as suds modifiers. Specifically, it is believed that they tend to boost the sudsing in an active system which exhibits relatively low sudsing, and depress the sudsing in an active system which exhibits relatively high sudsing.
• compositions of the present invention may atso contain additional ingredients generally found in laundry detergent compositions, at their conventional art-established levels, as long as these ingredients are compatible with the nonionic and cationic components required herein.
• the compositions can contain up to about 15%, preferably up to about 5%, and most preferably from about 0.001 to about 2%, of a suds suppressor component.
• Typical suds suppressors useful in- the compositions of the present invention include, but are not limited to; silicone-type suds suppressing additives which are described in U.S. Pat. 3,933,672, issued Jan. 20, 1976, Bartolotta et al, incorporated herein by reference and the self-emulsifying silicone suds suppressors, described in U.S. Pat.
• Microcrystalline waxes having a melting point in the range from 35°C-115°C and a saponification value of less than 100 represent additional examples of a preferred suds regulating component for use in the subject compositions, and are described in detail in U.S. Pat. 4,056,481, Tate, issued Nov. 1, 1977, incorporated herein by reference.
• Alkyl phosphate esters represent an additional preferred suds suppressant for use herein. These preferred phosphate esters are predominantly monostearyl phosphate which, in addition thereto, can contain di- and tristearyl phosphates and monooleyl phosphates, which can contain di- and trioleyl phosphates.
• adjunct components which can be included in the compositions of the present invention, in their conventional art-established levels for use (i.e., from about 0 to abut 40%), include semi-polar nonionic (such as trialkyl amine oxides), zwitterionic and ampholytic detergency cosurfactants; detergency builders; bleaching agents; bleach activators; soil release agents; soil suspending agents; corrosion inhibitors; dyes; fillers; optical brighteners; germicides; pH adjusting agents; alkalinity sources; hydrotropes; enzymes; enzyme-stabilizing agents; perfumes; solvents; carriers; suds modifiers; opacifiers; and the like.
• semi-polar nonionic such as trialkyl amine oxides
• zwitterionic and ampholytic detergency cosurfactants such as trialkyl amine oxides
• detergency builders such as trialkyl amine oxides
• bleaching agents bleach activators
• soil release agents such as sodium amine oxides
• soil suspending agents such
• compositions of the present invention can contain less than about 15% phosphate materials.
• Preferred compositions contain less than 7% phosphate, and can even be substantially, or totally free of such phosphate materials, without excessively decreasing the performance of the compositions.
• the compositions of the present invention preferably contain less than 10%, and are preferably substantially free of, silicate materials.
• Preferred compositions of the present invention are also substantially free of carboxymethylcellulose.
• compositions of the present invention can contain very small amounts of anionic materials, such as hydrotropes (e.g., alkali metal toluene sulfonates) , it is preferred that particular anionic materials be contained in amounts sufficiently small such that not more than about 10%, preferably not more than about 1%, of the cationic surfactant, contained in the laundry solution, is complexed by the anionic material. Such a complexing of the anionic material with the cationic surfactant, decreases the overall cleaning and fabric conditioning performance of the composition. Suitable anionic materials can be selected based on their strength of complexation with the cationic material included in the composition (as indicated by their dissociation constant).
• an anionic material when it has a dissociation constant of at least about 1 x 10 -3 (such as sodium toluene sulfonate), it can be contained in an amount up to about 40%, by weight, of the cationic surfactant; and where the anionic material has a dissociation constant of at least about 1 x 10 -5 , but less than about 1 x 10 -3 , it can be contained in an amount up to about 15%, by weight, of the cationic surfactant.
• Preferred compositions are substantially or completely free of such anionic materials.
• cosurfactants and detergency builders which can be used in the compositions of the present invention are found in U.S. Pat. 3,717,630, Booth, issued Feb. 20, 1973, and U.S. Pat. 4,259,217, Murphy, both of which are incorporated herein by reference.
• these components, particularly the anionic surfactants should be checked with the particular nonionic/cationic surfactant system chosen, and used in an amount, so as to be certain that they will be compatible with the nonionic/cationic surfactant system.
• compositions of the present invention can be produced in a variety of forms, including liquid, solid, granular, paste, powder or substrate compositions.
• the compositions of the present invention are formulated as liquids and contain up to about 20% of a lower alkyl (C 1 to C 4 ) alcohol, particularly ethanol. Liquid compositions containing lower levels of such alcohols (i.e., about 7 to 12%) tend to exhibit less phase separation than compositions containing higher alcohol levels.
• compositions of the present invention are used in the laundering process by forming an aqueous solution containing from about 0.01 (100 parts per million) to about 0.3% (3,000 parts per million), preferably from about 0.02 to about 0.2%, and most preferably from about 0.03 to about 0.15%, of the nonionic/cationic detergent mixture, and agitating the soiled fabrics in that solution. The fabrics are then rinsed and dried.
• the compositions of the present invention yield exceptionally good particulate soil removal, and also provide fabric softening, static control, color fidelity, and dye transfer inhibition to the laundered fabrics, without requiring the use of any of the other conventionally-used fabric softening and/or static control laundry additives.
• compositions illustrate the advantage in softening and antistatic performance for the invention as compared to conventional compositions containing only conventional nonionic detergent surfactants.
• a load of clothing was washed in a full size washing machine, using the composition given above at a usage concentration of about 1750 parts per million in 17) gallons of 95°F (35°C) water, having a hardness of about 7 grains per gallon.
• the composition had a pH of about 8 in the laundry solution.
• the load consisted of about 33 pieces of clothing and contained cotton, polyester/cotton, nylon and polyester materials, and acrylic.
• the washed load was subsequently placed in an automatic dryer, the drum of which had been cleaned with an alcohol-soaked cloth, and dried for a period of 60 minutes.
• the fabric load was then removed from the dryer and placed in a grounded Faraday Cage. The overall charge reading of the materials in the Faraday Cage was read and recorded as individual items were removed from the Cage. When all the fabrics had been removed, the total voltage charge for the fabric load could be determined.
• Softening is determined by grading with expert graders who used a grading scale of 0 to 4 in which 0 is equal; 1 is “! think this one is better.”; 2 is “I know this one is a little better.”; 3 is “This one is a lot better.”; and 4 is "This one is a whole lot better. A difference of about 3/4 is significant.
• the softening grades for A and B as compared to the base were 1.6 to 1.9 which are significant.
• C was compared to the base and was essentially equal in cleaning and static control, but was superior in softening.
• D, E, F, and G were tested against the base for softness and cleaning at the 1 ⁇ 2 cup level.
• the invention provides equal or better cleaning. With respect to static only, H is equivalent to the base with only one half of the static agent.
• nonionic surfactant in Composition A is replaced, in whole or in part, by the condensation product of C 14-15 alcohol with 2.25 moles of ethylene oxide; the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 9 moles of ethylene oxide; the condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, which is stripped so as to remove lower ethoxylate and nonethoxylated fractions; the condensation product of coconut alcohol with 5 moles of ethylene oxide; the condensation product of coconut alcohol with 6 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide; the condensation product of tallow alcohol with 9 moles of ethylene oxide; a 1:1 by weight mixture of the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide and the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide; and other mixtures of those surfactants.
• the ratio of nonionic surfactant to cationic surfactant used in Composition A is about 2:1, 3:1, 3.5:1, 4.5:1, 5:1, 6:1 or 8:1.
• the above composition additionally contains monoethanolamine, diethanolamine or triethanolamine, as an alkalinity source.
• compositions contain a silicone suds suppressor selected from the group consisting of trimethyl-, diethyl-, dipropyl-, dibutyl-, methylethyl-, phenylmethyl polysiloxane, and mixtures thereof; a petrolatum or oxidized petrolatum wax; a Fischer-Tropsch or oxidized Fischer-Tropsch wax; ozokerite; ceresin; montan wax; beeswax; candelilla; or carnauba wax.
• silicone suds suppressor selected from the group consisting of trimethyl-, diethyl-, dipropyl-, dibutyl-, methylethyl-, phenylmethyl polysiloxane, and mixtures thereof; a petrolatum or oxidized petrolatum wax; a Fischer-Tropsch or oxidized Fischer-Tropsch wax; ozokerite; ceresin; montan wax; beeswax; candelilla; or carnauba wax.

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• 1983
  • 1983-04-28 AT AT83200604T patent/ATE21926T1/de not_active IP Right Cessation
  • 1983-04-28 EP EP83200604A patent/EP0094118B2/de not_active Expired - Lifetime
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