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WO1997043396A1 - Materiau de base pour detergent synthetique doux et pain de detergent synthetique doux produit a partir dudit materiau - Google Patents

Materiau de base pour detergent synthetique doux et pain de detergent synthetique doux produit a partir dudit materiau Download PDF

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Publication number
WO1997043396A1
WO1997043396A1 PCT/US1997/007837 US9707837W WO9743396A1 WO 1997043396 A1 WO1997043396 A1 WO 1997043396A1 US 9707837 W US9707837 W US 9707837W WO 9743396 A1 WO9743396 A1 WO 9743396A1
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WO
WIPO (PCT)
Prior art keywords
salts
weight percent
mild
synthetic detergent
base material
Prior art date
Application number
PCT/US1997/007837
Other languages
English (en)
Inventor
William C. Allison
Original Assignee
Ppg Industries, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ppg Industries, Inc. filed Critical Ppg Industries, Inc.
Priority to AU30009/97A priority Critical patent/AU3000997A/en
Publication of WO1997043396A1 publication Critical patent/WO1997043396A1/fr

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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
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • C11D10/042—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on anionic surface-active compounds and soap
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/006—Detergents in the form of bars or tablets containing mainly surfactants, but no builders, e.g. syndet bar
    • 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
    • C11D3/18—Hydrocarbons
    • 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
    • C11D1/04—Carboxylic acids or 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
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/10—Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates 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
    • C11D1/123—Sulfonic acids or sulfuric acid esters; Salts thereof derived from carboxylic acids, e.g. sulfosuccinates
    • 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
    • C11D1/126—Acylisethionates
    • 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
    • C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides

Definitions

  • the present invention relates to a mild synthetic detergent base material, and mild synthetic detergent bars produced using the synthetic detergent base material. More particularly, this invention relates to a synthetic detergent base material consisting essentially of mild anionic synthetic surfactant and/or salts thereof, C ⁇ - C 22 fatty acids, soap, i.e., salts of C 8 -C 22 fatty acids, water, C ⁇ -C 14 acyl sarcosine and/or salts thereof, hydrocarbon wax, and isethionic acid, chloride and/or sulfate salts. Still more particularly, this invention relates to synthetic detergent bars that are prepared from the mild synthetic detergent base material.
  • Synthetic detergent bars frequently referred to as “syndet bars”
  • soap bars are well known and are becoming increasingly popular.
  • syndet bars have not replaced soap bars widely for a variety of reasons.
  • One reason is that syndet bars, as compared to soap bars, are softer and smear more easily, i.e., partially dissolve or form a gel, with use.
  • Mild personal cleansing bar compositions have been described in U.S. Patent 5,294,363.
  • Such compositions include essentially saturated long chain (C15-C22) synthetic surfactant, such as alkyl sulfate, alkyl sarcosinate and alkyl glyceryl ether sulfonate; paraffin wax; lathering mild synthetic surfactant, e.g., C 12 " C 14 acyl isethionate, alkyl glyceryl ether sulfonate and/or sodium acyl sarcosinate (at least 10% of the bar being said lathering C ⁇ 2 _c 14 acyl isethionate; free fatty acid (stearic and/or lauric acid) ; soap; sodium isethionate; and water.
  • sodium chloride and a cationic polymer may also be present.
  • a key to the compositions described in U.S. patent 5,294,363 is asserted to be the long chain alkyl s
  • a mild synthetic detergent base material which combines a desirably high level of active ingredients, i.e., up to 75 weight percent total synthetic surfactant, and a low hot melt viscosity, which enables easy preparation of base material without special processing equipment, can be prepared without the need for long chain alkyl sulfates or long chain synthetic surfactants.
  • the mild synthetic detergent base material of the present invention is substantially free of long chain synthetic surfactants, i.e., synthetic surfactants in which more than 50, usually more than 60, weight percent of the carbon chains comprising the synthetic surfactant are greater than 15 carbon atoms, e.g., within the range of between 15 and 22 carbon atoms.
  • the mild synthetic detergent base material of the present invention may be used with conventional adjuvant materials in skin cleansing compositions, e.g., bars, gels, pastes and liquids.
  • Solid formulations of such compositions provide the desired physical properties associated with soap bars, such as acceptable bar smear, i.e., a rating of less than or equal to 6 in the Hewitt Soap Company Method No. 107; acceptable bar hardness properties, i.e., a rating less than 50, using a Precision Universal Penetrometer and the procedure described in association with the Examples; a low water temperature, e.g., less than or equal to 25°C, at which grit or granules are detectable in the bar; and good lather.
  • acceptable bar smear i.e., a rating of less than or equal to 6 in the Hewitt Soap Company Method No. 107
  • acceptable bar hardness properties i.e., a rating less than 50, using a Precision Universal Penetrometer and the procedure described in
  • the mild synthetic detergent base material of the present invention consists essentially of from 30 to 65 weight percent of mild, lathering anionic synthetic surfactant that are substantially free of long chain synthetic surfactants; from 7 to 40 weight percent of C 8 -C 22 fatty acid; from 2 to 20 weight percent salt(s) of C B -C 22 fatty acid; from 1.5 to 12 weight percent of water; from 1 to 10 weight percent of C 8 -C 14 acyl sarcosine, salts thereof or a mixture of the acyl sarcosine and salts thereof; from 1 to 10 weight percent of hydrocarbon wax; and from 0.5 to 5 weight percent isethionic acid, chloride and/or sulfate salts or mixtures of such salts.
  • the sodium salts of such acid salts are preferred.
  • the pH of the synthetic detergent base ranges typically from 5.5 to 8.5, preferably from 6 to 8 and more preferably from 7.0 to 7.6.
  • a syndet bar containing this detergent base and conventional soap bar adjuvant materials can be prepared using standard bar processing equipment.
  • a synthetic detergent base material having a pH from 5.5 to 8.5 and consisting essentially of from 30 to 65 weight percent of mild, lathering anionic synthetic surfactant (or mixtures of mild lathering synthetic surfactants) that are substantially free of long chain synthetic surfactants; from 7 to 40 weight percent of C 8 -C 22 fatty acid; from 2 to 20 weight percent salt(s) of C ⁇ -C 22 fatty acid, i.e., soap; from 1.5 to 12 weight percent of water; from 1 to 10 weight percent of C e -C 14 acyl sarcosine, salts thereof or a mixture of the acyl sarcosine and salts thereof; from 1 to 10 weight percent of hydrocarbon wax; and from 0.5 to 5 weight percent salts of isethionic acid, chloride, sulfate or mixtures thereof.
  • the pH of the synthetic detergent base material is determined by measuring the pH of a
  • compositions of such surfactants include cosmetically acceptable salts of such surfactants.
  • cosmetically acceptable is meant that the salt may be used in cosmetic preparations, such as syndet bars.
  • salts include the sodium, potassium, magnesium, ammonium, monoethanolammonium, diethanolammonium and triethanolammmonium salts and mixtures of such salts.
  • mild lathering synthetic anionic surfactants include methyl acyl taurates, n-acyl glutamates, acyl isethionates, mono-alkyl sulfosuccinate ⁇ and cosmetically acceptable salts of such mild surfactants .
  • the acyl isethionates are preferred. Mixtures of such mild surfactants and/or the salts thereof may also be used.
  • the alkyl and acyl groups for these mild surfactants typically contain from 8 to 14 carbon atoms (C 8 -C 14 ) , i.e., more than 50, preferably more than 65, weight percent of the carbon chains comprising the surfactant are within the range of from 8 to 14 carbon atoms.
  • Cocoyl is included in this group since it has a typical distribution of 12 percent C 8 -C 10 , 45 to 50 percent C 12 , 15 to 20 percent C 14 , 12 to 16 percent C ⁇ e and 11 percent C 18 .
  • These mild synthetic anionic surfactants may also be considered as mild high lathering synthetic surfactants when compared to long chain C 15 -C 22 synthetic surfactants.
  • the amount of mild lathering or more preferably high lathering synthetic surfactant present in the synthetic base material ranges from 35 to 60, more preferably from 40 to 50, e.g., 44 to 48, weight percent, of the detergent base material and is selected from the group consisting of sodium and/or ammonium salts of acyl isethionates, e.g., cocoyl isethionates, such as sodium cocoyl isethionate, ammonium cocoyl isethionate and mixtures of such cocoyl isethionates.
  • Commercially available sources of sodium cocoyl isethionate may be formulated with stearic acid and may also contain minor amounts of sodium isethionate and coconut fatty acid.
  • the synthetic detergent base material further contains from 7 to 40 weight percent of fatty acid.
  • the lipophilic portion of the fatty acid may comprise alkyl-, alkenyl-, or hydroxyalkenyl- groups containing from about 8 to 22 carbon atoms, preferably from about 8 to 18 carbon atoms.
  • the carbon chain may be linear, branched, even or odd numbered, saturated and/or unsaturated.
  • the acids generally comprise a mixture of the aforementioned lipophilic groups.
  • distilled mixed vegetable oil fatty acid may have the following carbon-chain distribution: 3 percent lauric fatty acid, 10-12 percent myristic acid, 15-20 percent palmitic acid, 18-25 percent stearic acid, 45-50 percent oleic acid and 5 percent linoleic acid.
  • the fatty acid may be derived from an animal, e.g., beef tallow, or vegetable, e.g., coconut, palm, and soybean, source or produced by synthetic routes.
  • the synthesis of acids having a similar carbon chain length as natural fatty acids may be achieved by using petroleum feedstocks in the Oxo or Ziegler processes to produce aldehydes or alcohols, respectively, which when subjected to further oxidation form the corresponding acids.
  • the amount of fatty acid present in the detergent base material ranges from 15 to 35 weight percent and is selected from the group consisting of coconut fatty acid, tallow fatty acid, caprylic, capric, lauric, myristic, palmitic, stearic acids, and mixtures of such fatty acids, e.g. tallow/coconut fatty acid mixtures. More preferably, the fatty acid is present in the detergent base material in an amount of from 20 to 30, e.g., 25 to 28, weight percent.
  • Soap i.e., salts of C 8 -C 22 fatty acids
  • Suitable salts of fatty acids include sodium salts, monoethanolammonium salts, diethanolammonium salts, triethanolammonium salts, ammonium salts, potassium salts, magnesium salts and mixtures of such salts.
  • the soap is present : amounts of from 5 to 18 weight percent and the salt is a idium salt. More preferably, the soap is present in amounts of from 8 to 12 weight percent.
  • the synthetic detergent base material contains from 1.5 to 12 weight perc ⁇ ; of water, preferably from 3 to 10 weight percent, and more preferably from 5 to 8 weight percent, of water. Additional water may be added to the base material during processing to prepare the syndet bar.
  • the C 8 -C 14 acyl sarcosine, salt(s) thereof or mixtures of such sarcosine and mixtures of such sarcosine salts may be present in the synthetic detergent base material in amounts of from 1 to 10 weight percent.
  • the acyl sarcosines contain from Ci2 ⁇ c i4 carbon atoms and are n- acyl sarcosines.
  • Preferred acyl sarcosines are selected from the group consisting of lauroyl sarcosine, cocoyl sarcosine and myristoyl sarcosine.
  • Salts of the sarcosines may be selected from the group consisting of sodium salts, monoethanolammonium salts, diethanolammonium salts, triethanolammonium salts, ammonium salts, potassium salts, magnesium salts and mixtures of such salts.
  • the sarcosine component of the base material is present in amounts of from 1.5 to 8 weight percent, more preferably, from 2 or 3 to 5 weight percent.
  • the sarcosine and salts thereof are selected from the group consisting of lauroyl sarcosine, cocoyl sarcosine, sodium salts thereof, and mixtures of such sarcosines and their sodium salts.
  • the mild synthetic detergent base also contains hydrocarbon waxes which are composed of saturated aliphatic hydrocarbons that are typically solids at room temperature (22°C) , range in average molecular weight from 200 to 600, and have melting points from 49°C (120°F) to 93°C (200°F) .
  • the hydrocarbon waxes are selected from the group consisting of petroleum waxes, polyethylene waxes, synthetic waxes and mixtures of such waxes. More preferably, the hydrocarbon waxes are selected from the group consisting of paraffin waxes, polyethylene waxes and mixtures of such waxes.
  • the hydrocarbon waxes may be present in amounts of from 1 to 10 weight percent, preferably from 1 to 5 weight percent, and more preferably, from 2 to 4 weight percent.
  • Examples of petroleum waxes include refined paraffin waxes sold as Parvan® 127 by Exxon and Paraffin Wax 6971 sold by
  • Polyethylene waxes include Polywax® 400 and 500 sold by Petrolite.
  • synthetic waxes include Vybar® 253, reported to be a highly branched hydrocarbon made from polymerized olefins (a product of Petrolite) , and Fischer- Tropsch waxes such as polymethylene wax.
  • Salts of isethionic acid, chloride salts or sulfate salts may also be present in the mild synthetic detergent base at levels from 0.5 to 5 weight percent, preferably, from 1 to 5 weight percent, and more preferably, from 1.5 to 2.5 weight percent.
  • the salts of these materials are selected from the group consisting of sodium salts, monoethanolammonium salts, diethanolammonium salts, triethanolammonium salts, ammonium salts, potassium salts, magnesium salts and mixtures of such salts.
  • the salt is a sodium salt.
  • the weight ratio in the syndet bar of the sum total of synthetic surfactant i.e., (i) the mild lathering anionic synthetic surfactants, (ii) C 8 -C 14 acyl sarcosine, salt(s) thereof or mixtures of such sarcosines and their salts, or (iii) mixtures of such synthetic surfactants to fatty acid
  • the weight ratio in the syndet bar of synthetic surfactant (i) : (ii) may range from 3:1 to 65:1, preferably, 4:1 to 40:1, and more preferably, from 8:1 to 12:1.
  • the synthetic detergent base material of the present invention may be prepared by the steps of : (a) combining the Cg-C- ⁇ i n-acyl sarcosine and/or salts thereof; mild lathering anionic synthetic surfactant; C 8 -C 22 fatty acid; soap; hydrocarbon wax; isethionic acid, chloride and/or sulfate salts; and water in a suitable mixing vessel;
  • step (b) heating the resultant mixture to liquify and form a uniform liquid mixture of these components, e.g., by heating the mixture with mixing at temperatures in the range of from 80 to 125°C; (c) adjusting, if necessary, the pH of the product of step (b) , e.g., to within the range of from about 5.5 to about 8.5, preferably from 6 to 8 and more preferably from 7.0 to 7.6, by adding an alkaline reagent to the mixture, and
  • acidic starting materials e.g., n-acyl sarcosine
  • Suitable alkaline reagents include ammonium, sodium and/or potassium hydroxide, or such salts of a C 8 -C 22 fatty acid.
  • the pH can be adjusted downward with an appropriate acid, e.g., isethionic acid.
  • the solid product produced from step (d) may be produced in various physical forms, e.g., granulated, flaked and fragmented.
  • Granulated material may be produced by cooling the uniform mixture in, for example, a ribbon blender and continuing the mixing operation to breakdown the solids into granules.
  • Flaked material may be prepared by cooling the uniform mixture on a chill roller or a drum dryer and removing the solid product with a knife or scraper that results in the formation of flakes or chips.
  • Fragmented material may be prepared by cooling the uniform mixture in containers such as shallow trays and subsequently breaking up the resulting solid pieces into fragments.
  • the product is produced in the flaked material form.
  • Synthetic detergent bars made from the base composition of the present invention may be prepared by methods known in the art, e.g., as described in U.S. Patent 5,096,608 column 9, line 44 to column 10, line 63. It will be understood by those skilled in the art that conventional adjuvant materials commonly added to soap bars may be added to the detergent base materials. Examples of such adjuvant materials include extenders, such as modified food starches, urea, clays, talc, titanium dioxide and the like; salts, such as metallic stearates, and hydrogenated vegetable glyceride phosphates to improve processing properties; and other conventional additives, such as fragrance, antioxidants, chelating agents, foam stabilizers, dyes, germicides, etc. Many of these additives are optional ingredients which are added in minor quantities and which do not materially effect the viscosity of base material mixture. Water will be present in the syndet bar in amounts usually in the range of 1.5 to 13, e.g., 2 to 12, weight percent.
  • the salts of the various components of the synthetic detergent base material are preferably selected from the group consisting of sodium salts, monoethanolammonium salts, diethanolammonium salts, triethanolammonium salts, ammonium salts, potassium salts, magnesium salts and mixtures of such salts.
  • the addition of the ingredients in Part B occurred after the temperature of the batch reached the desired temperature of about 105°C. Afterwards, the batches were mixed for one hour for all of the examples except Example 2 and CE 1 and 3-7, which were mixed for 10 minutes. The temperature maintained during this mixing step was about 85°C for Example 2 and CE 1, 3-7 and 10; and about 105°C for the remainder of the examples. After this mixing step, the temperature of the batch was then reduced to 85°C. At this point, the viscosity was rated by the operator on a scale from 1 to 5, 1 being more fluid and 5 being the most viscous. The viscosity ratings are listed in Table 5. The temperature of the batch was then reduced to 35°C. Dry ice was added in an amount sufficient to complete the conversion of the liquid to a solid phase, e.g., from about 300 grams to about 1000 grams of dry ice. The resulting solid was subsequently broken up in the blender.
  • the resulting synthetic detergent base material was added to a ribbon blender and blended for about 5 to 10 minutes at room temperature. All of the examples were blended without addition of further ingredients except Comparative Example 9, to which was added 1.5 weight percent water and 2 weight percent coconut fatty acid; and Comparative Example 13, to which was added 6.3 weight percent water.
  • the resulting blended product was added to a Mazzoni M-100 Simplex Refiner/Plodder maintained at a temperature of about 30 to 40°C. The product was successively forced or refined through a 20 mesh screen, a 30 mesh screen, and a 50 mesh screen. All of the examples were successfully refined except Comparative Example 13, which clogged the screens.
  • the refined product was then added to a Mazzcni M- 100 Simplex Refiner/Plodder having a nosecone heated to about 50 to 60°C. and- an extrusion plate in place of the screens.
  • the billet exiting the extrusion plate was cut into slugs about 3.5 to 4 inches in length.
  • Each slug was pressed into a bar using a Mazzoni STL hand press.
  • the die of the hand press was treated with a thin coating of glycerin to aid in the release of the bar.
  • the number of bars released after each die treatment was counted and is listed in Table 5. The pressed bars were evaluated for bar hardness and bar smear.
  • Bar hardness was determined using a Precision Universal Penetrometer and a modified procedure of that described in Soap Technology For The 1990s edited by Luis Spitz, 1990, published by the American Oil Chemists' Society, page 282. The procedure was modified by running 5 penetrations on one side of the bar, totaling the results and doing 5 more penetrations on the other side and totaling the results. The average of both totals is reported in Table 5.
  • the bar smear test was done following the Hewitt Soap Company Method No. 107 described on pp. 278 to 279 in Soap Technology For The 1990s . These results are also reported in Table 5.
  • Lather and grit testing were performed on the finished bars at least one hour after pressing.
  • the lather test was conducted in a sink having a faucet equipped with a thermometer for measuring the temperature of the water. A stream of water at a flow rate of approximately one gallon per minute was adjusted to 35°C.
  • the test bar was held in both hands in the stream of water and rotated in the hands through 10 complete revolutions.
  • the hands and bar were removed from the stream of water and the bar was rotated in the hands through an additional 5 complete revolutions.
  • the bar was set aside and the hands were rotated around each other through 10 revolutions to generate lather.
  • the lather was removed from the hands and formed into a mound.
  • the volume and quality of the lather were rated as follows:
  • Coco Betaine 0 0 0 0 0 0 0 0 0 0 0 0 4.2 0 0 0 0 0
  • Corn Oil (triglyceride) 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0
  • a synthetic wax having an average molecular weight of 520 made from polymerized olefins and sold by ' 10 Petrolite.
  • Comparative Example 9 also contains 1.5 weight % water and 2 weight % coconut acids added during the bar making operation.
  • Comparative Example 13 also contains 6.3 weight % water and 2 weight % coconut acids added during the bar Q
  • Comparative Example 9 which contained 0 weight percent lauroyl sarcosine, also had a melt viscosity that was too high.
  • Comparative Examples 10, 11 and 12 which contained potential replacements for the sarcosine, i.e., cocoamidopropyl hydroxysultaine, cocobetaine and potassium cocoamine oxide phosphate, had detectable grit at a temperature above 25°C in addition to unacceptable melt viscosities for Comparative Examples 10 and ll and unacceptable bar hardness for Comparative Example 12.
  • Comparative Example 13 which had 0 weight percent water in the hot melt, could not be processed through the screens and Comparative Example 14, which had 15 weight percent water in the hot melt, had an unacceptable melt viscosity and a low number of bars released.

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  • 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)

Abstract

L'invention concerne de nouveaux matériaux de base pour détergents synthétiques doux ayant un pH compris entre 5,5 et 8,5. Lesdits matériaux comprennent essentiellement 30 à 65 % en poids d'un tensioactif anionique synthétique doux, de ses sels, ou d'un mélange de tensioactif et de ses sels; 7 à 40 % en poids d'un acide gras en C8-C22; 2 à 20 % en poids d'un ou plusieurs sels de l'acide gras en C8-C22, c'est-à-dire de savon; 1,5 à 12 % en poids d'eau; 1 à 10 % en poids de n-acyl C8-C14 sarcosine, de ses sels ou d'un mélange de n-acyl sarcosine et de ses sels; 1 à 10 % en poids d'une cire hydrocarbonée; et 0,5 à 5 % en poids d'un sel d'acide isethionique, de chlorure ou de sulfate, ou d'un mélange desdits sels. L'invention concerne également des pains de détergent synthétique doux préparés à partir du matériau de base pour détergent synthétique doux et d'adjuvants conventionnels pour pains de savon.
PCT/US1997/007837 1996-05-14 1997-05-08 Materiau de base pour detergent synthetique doux et pain de detergent synthetique doux produit a partir dudit materiau WO1997043396A1 (fr)

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AU30009/97A AU3000997A (en) 1996-05-14 1997-05-08 Mild synthetic detergent base material and mild synthetic detergent bar produced therefrom

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US64566896A 1996-05-14 1996-05-14
US08/645,668 1996-05-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020729A1 (fr) * 1997-10-21 1999-04-29 Stepan Company Compositions pour pain de savon a base d'ester d'alkyle sulfone alpha et d'acide gras sulfone, et acides gras a chaine longue
WO1999027065A1 (fr) * 1997-11-26 1999-06-03 The Procter & Gamble Company Composition de detergent en gel aqueux pour lessive
US5981451A (en) * 1998-09-23 1999-11-09 Lever Brothers Company Non-molten-mix process for making bar comprising acyl isethionate based solids, soap and optional filler
WO2006101866A1 (fr) * 2005-03-18 2006-09-28 3M Innovative Properties Company Nettoyants solides pour surfaces de preparation d’aliments rechauffes

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5225097A (en) * 1992-03-20 1993-07-06 The Procter & Gamble Company Skin pH freezer bar and process
US5262079A (en) * 1992-03-20 1993-11-16 The Procter & Gamble Company Framed neutral pH cleansing bar
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US5523017A (en) * 1991-10-07 1996-06-04 Nephin Solid cleansing bar

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020729A1 (fr) * 1997-10-21 1999-04-29 Stepan Company Compositions pour pain de savon a base d'ester d'alkyle sulfone alpha et d'acide gras sulfone, et acides gras a chaine longue
US6172026B1 (en) 1997-10-21 2001-01-09 Stepan Company Soap bar compositions comprising alpha sulfonated fatty acid alkyl esters and long chain fatty acids
WO1999027065A1 (fr) * 1997-11-26 1999-06-03 The Procter & Gamble Company Composition de detergent en gel aqueux pour lessive
US5981451A (en) * 1998-09-23 1999-11-09 Lever Brothers Company Non-molten-mix process for making bar comprising acyl isethionate based solids, soap and optional filler
WO2006101866A1 (fr) * 2005-03-18 2006-09-28 3M Innovative Properties Company Nettoyants solides pour surfaces de preparation d’aliments rechauffes
US7915211B2 (en) 2005-03-18 2011-03-29 3M Innovative Properties Company Solid cleaners for heated food preparation surfaces

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