MXPA98007242A - Bar / pasta lavatrastes transparente - Google Patents

Abstract

The present invention relates to a transparent / translucent lava-washed composition in stick / paste form containing: (a) an alkyl polyglucoside with the general formula I. Rû (RýO) b (Z) a (I) wherein Rû is a radical monovalent organic having about 6 to about 30 carbon atoms, Rýes a divalent alkylene radical having from 2 to 4 carbon atoms, Z is a saccharide residue having 5 or 6 carbon atoms, b is a number having a value of 0 at about 12, a is a number that has a value from 1 to about 6, (b) a short chain, (c) a fatty acid, (d) an amide, and (e) a poly

Description

BAR / FASTA LAVATRA5TES TRANSPARENT FIELD OF THE INVENTION This invention relates to transparent soap bars. More specifically, the present invention relates to transparent frets washed with soapy and foaming characteristics and The tiansparentes soap bars are usually softer than the opara bars. These soaps, for their distinct appearance, depend on the fact that the soap is deposited from the alcoholic solution in a transparent, ultra microcrystalline form. The addition of glycerol and sugar also tends to cause soap to take this form. The effect is completely physical and depends on the conditions under which the soap crystallizes instead of the presence of alcohol or any other substance in the finished soap paste. In this way, a transparent soap made with the help of alcohol maintains its appearance after most of the alcohol has been evaporated from it. Transparent soaps vary greatly in their composition. These can be prepared by simply dissolving soap flakes in alcohol and then removing most of the alcohol. This product will not be very different in the composition of the original soap flakes. A more common manufacturing method, however, is to add alcohol and glycerol in the ratio of about 2 parts of alcohol to one of glycerol, to a hot saponified batch of semi-boiled soap until a rapidly cooled sample is clear, after which the lot is formed in the normal way. It is also possible to add sugar. The fats that are used in transparent soaps usually have bait and coconut oil. Up to about 30: castor oil is often used in fat loading, as the presence of this oil reduces the amount of alcohol, glycerol, or sugar needed to make the soap transparent. The anhydrous soap content of transparent soaps will usually be well below 50 °. There has always been a need to increase the soap and foam forming characteristics of the transparent soap bars by including various types of surfactants. However, it has been found that when a synthetic surfactant is added to a transparent soap formulation, the resulting bar is not transparent.

SUMMARY OF THE INVENTION: The present invention is directed to a rinsing composition containing: r (a) from about 2 to about 40 wt.% Of an alkyl polyglucoside of formula 1. R? (R20) b (Z) a ( 1) wherein Ri is a monovalent organic radical having from about 6 to about 30 carbon atoms; R is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number that has a value from 1 to approximately 6; (b) from about 1 to about 10 or by weight of a short chain alcohol; (c) from about 2 to about 15 weight percent of a fatty acid; (d) from about 1 to about 20c by weight of an amide; and (e) from about 1 to about 20% by weight of a polyol, all weights being based on the weight of the composition. The present invention also provides a process for making a lava fret composition that includes the combination of the aforementioned components in the proportions described.

Description of the invention - In contrast to the operative examples, or where otherwise indicated, all numbers expressing quantities of the ingredients or reaction conditions must be understood as modified in all cases by the approximate term. alkyl polyglucosides which can be used in the compositions according to the invention have the formula 1. R (R20) b (Z) a (I) Where Ri is a monovalent organic radical having from about 6 to about 30 carbon atoms. carbon; R 1 is a divalent alkylene radical having 2 to 4 carbon atoms; Z is a saccharide residue having 5 or more carbon atoms; 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6. Preferred alkyl polyglycosides that can be used in the compositions according to the invention have the formula I, wherein Z is a glucose residue and b is 0. These alkyl polyglucosides are available commercially, for example, as APG®, GLUCOPON®, or PLANTAREN® surfactants from Henkel Corporation Ambler, PA., 19002. Examples of these surfactants include, but are not limited to: 1. APG® 225 Surfactant - an alkyl polyglucoside in which the alkyl group contains from 8 to 10 carbon atoms and having an average degree of polymerization of 1.7. 2. APG® 425 Surfactant - an alkyl polyglucoside in which the alkyl group contains from 8 to 16 carbon atoms and which has an average degree of polymerization of 1.6. 3. APG® 625 Surfactant - an alkyl polyglucoside in which the alkyl group contains 12 to 16 carbon atoms and which has an average degree of polymerization of 1.6. 4. APG® 325 Surfactant - an alkyl polyglucoside in which the alkyl groups contain 9 to 11 carbon atoms and which has an average degree of polymerization of 1.6. 5. GLUCOPON® 600 Surfactant - an alkyl polyglucoside in which the alkyl groups contain from 12 to 16 carbon atoms and which have an average degree of polymerization of 1.4. 6. PLANTAREN® 2000 Surfactant -an alkyl of C "-lb polyglucoside in which the alkyl group contains from 8 to 16 carbon atoms and which has an average degree of polymerization of 1.4. 7. PLANTAREN® 1300 Surfactant - a C1- 1 alkyl polyglucoside in which the alkyl groups contain from 12 to 16 carbon atoms and which has an average degree of polymerization of 1.6. Other examples include alkyl polyglycoside surfactant compositions which are composed of mixtures of compounds of the formula I, wherein Z represents a portion derived from a reducing saccharide containing 5 or 6 carbon atoms; a is a number that has a value from 1 to approximately 6; b is 0; and R, is an alkyl radical having from 8 to 20 carbon atoms. The compositions are characterized in that they have increased surfactant properties and an HLB in the range of about 10 to about 16 and a distribution of non-Flory glycosides, which are composed of a mixture of an alkyl onoglucoside and a mixture of alkyl polyglycosides having various polymerization grades of 2 and higher in progressively decreasing amounts, in which the amount by weight of polyglucoside having a degree of polymerization of 2"or mixtures of these with the polyglucoside having a degree of polymerization of 3, predominates in relation to the amount of monoglycoside, this composition having an average degree of polymerization of about 1.8 to about 3. These compositions, also known as peak alkyl polyglucosides, can be prepared by preparing the monoglycoside from the original reaction mixture of the alkyl monoglucoside. and alkyl polyglucosides after s the elimination of alcohol. This separation can be carried out by molecular distillation and usually results in the elimination of about 70-952, by weight of alkyl monoglycoside. After the elimination of the alkyl onoglycosides, the relative distribution of the various components, mono- and polyglucosides, in the resulting product changes and the concentration in the product of the polyglucosides relative to the monoglycoside increases as well as the concentration of the individual polyglucosides with the total, that is, the fractions DP2 and DP3 in relation to the sum of all the DP fractions. These compositions are described in U.S. Patent 5,266,690, all of which is incorporated herein by reference. Other alkyl polyglucosides which can be used in the compositions according to the invention are those in which the alkyl portion contains from 6 to 18 carbon atoms; wherein [sic] and the average carbon chain length of the composition from about 9 to about 14 consists of a mixture of at least two binary components of the alkyl polyglucosides wherein each binary component is present in the mixture in relation to its average carbon chain length in an amount effective to provide the surfactant composition with the average carbon chain length of from about 9 to about 14, and wherein at least 1, or both binary components, comprises a Flory distribution of the polyglycosides derived from the acid catalyzed reaction of an alcohol containing 6-20 carbon atoms and a suitable saccharide, from which the excess alcohol has been separated. The inclusion of the alkyl polyglucosides in the formulations of the transparent soap bar containing alkanolamines, polyols, water and alkaline soaps inhibits the water oozing of polyols. A preferred alkyl polyglucoside wherein formula I, R ± is a monovalent organic radical having from about 8 to about 16 carbon atoms, b is 0 and a is a number having a value of 1.4 to 1.7. A particularly preferred alkyl polyglucoside is one in which formula I, R 'is a monovalent organic radical having from 12 to about 16 carbon atoms, b is 0 and a is a number having a value of 1.6. the amount of alkyl polyglucosides that can be used in general is in the range of about 12 to about 40% by weight, and preferably from about 5 to about 15%? in weight, based on the weight of the composition. The short chain alcohol component of the present invention can be any short chain monohydric alcohol. Suitable short chain alcohols include, but are not limited to methyl alcohol, ethyl alcohol, propyl alcohol and the like. A particularly preferred short chain alcohol is isopropyl alcohol. The amount of short chain alcohol that can be employed in the present invention is in the range of from about 1 to about 10% by weight, based on the weight of the composition. The polyol component of the soap bars according to the invention can be any aliphatic compound having two or more alcohol functionalities. These polyols include diols, triols, tetraols, etc. Examples of these polyols include, but are not limited to, ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, diethylene glycol, dipropylene glycol, triethylene glycol, 1,6-hexylene glycol, glycerin, polyglycerols, monosaccharides. as glucose or fructose, disaccharides such as sucrose, sorbitol, and polyvinyl alcohol. Preferred polyols include 1,2-propylene glycol, glycerin, polyglycerol and sorbitol. The most preferred polyol is 1,2-propylene glycol. The amount of polyol that can be used preferably is from about 1 to about 20% by weight, and most preferably from about 7 to about 15 by weight, based on the weight of the composition. The specific amount of the polyol employed will depend on the aesthetic form of the desired composition. For example, if a clear dishwashing composition is desired, the composition will usually contain from about 8 to about 20, and from about 12 to about 16% by weight of the polyol component, based on the weight of the composition. composition. On the other hand, if a translucent washing composition is desired, the composition will usually contain from about 1 to about 10, and preferably from about 3 to about 7 or by weight of the polyol component, based on the weight of the composition. A particularly preferred polyol is CARBOWAX® 400, a linear glycol polymer available commercially from Union Carbide Corporation. The fatty acid component of the composition according to the invention can be any saturated or unsaturated carboxylic acid, branched or linear that has 8 to 30 carbon atoms or a mixture of these acids. An example of a commercial grade stearic acid, preferred is EMERSOL® 150 Stearic Acid, a registered product of Henkel Corporation, Emery Group, Cincinnati / OH., Which has an average weight percent composition of 2% myristic acid, 1% of pentadecanoic acid, 11% palmitic acid, 2% margaric acid and 83% stearic acid. The amount of the fatty acid component that can be used in the composition according to the invention is generally in the range from about 2 to about 15% by weight, and preferably from about 3 to about 8% by weight, based on the weight of the composition. A particularly preferred fatty acid component is a higher grade stearic acid containing more than 50% pure stearic acid and preferably at least 80% pure stearic acid. However, it should be noted that the specific amount of fatty acid that is employed will depend on the hardness and, therefore, the shape of the desired composition. For example, if a wash bar is desired, the composition will usually contain from at least 4% to about 15 or by weight of the fatty acid component. On the contrary, if a washing paste is desired, the composition will usually contain less than 4% by weight, and preferably from about 2.5 to about 3.5% by weight of the fatty acid component. The degree of neutralization of fatty acids in the range from at least 70% to 100%, with the most preferred range being from 90 to 100%. The fatty acids can be neutralized using any alkaline material such as, for example, sodium hydroxide. The amides which can be used in the present invention have the general formula II: useful) R5-C-N- (R4); where R is that an alkyl group. which contains from about 8 to about 18 carbon atoms and each R4 is the same or different and is selected from the group consisting of: hydrogen, Ci-j alkyl, C?-0 and - (C¿H40-) alkanol, and mixtures thereof. The preferred amide is a diet olamide, and, more specifically, a cocodiethanolamide. It should also be noted that monoethanolamides have been found to be ineffective in the formulation of the lava fret compositions of the present invention. The amount of amine that can be used in the present invention is generally in the range of from about 1 to about 20 by weight and, preferably from about 2 to about 6% by weight, based on the weight of the composition. In a particularly preferred embodiment of the present invention, the dishwashing composition contains from about 8 to about 12% by weight of an alkyl polyglucoside of the formula 1 / wherein Ri is a monovalent organic radical having from 12 to 16 carbon atoms , from about 3 to about 5% by weight of isopropyl alcohol, from about 4 to about 60 by weight of stearic acid, from about 5 to about 10% by weight of cocodiethanolamide and from about 10 to about 14% by weight of 1, 2-propylene glycol, all weights being based on the weight of the composition. In this embodiment, the formed dishwashing composition is a transparent solid bar. However, as mentioned above, by varying the amount of the fatty acid used, in this case using less stearic acid, the composition will take the form of a paste. In the same way, by varying the amount of a polyol used, in this case using more 1,2-propylene glycol, a more translucent lava-washing composition is formed. Regardless of the desired aesthetic appearance, the amount of fatty acid employed will be in the range of from about 2 to about 15% by weight, and the amount of polyol used will be in the range of from about 1 to about 20% by weight, all of which will be weights based on the weight of the composition. It should also be noted that a bar or pasta form of the dishwashing composition of the present invention has application in institutional and industrial sectors. For example, the bar shape of the composition can be packaged in a container capable of being inverted in one direction for downward distribution. By joining a source of hot water at the end of the container's distribution, small amounts of the lava-washing composition can be melted and distributed, by gravitational drop, on the articles to be cleaned. Additional dishwashing ingredients can also be incorporated into the composition without departing from the spirit of the invention. Examples thereof include, but are not limited to, anionic surfactants, nonionic surfactants and builders. However, since the aesthetic appearance of the lavatraste composition should be in the range between transparent and translucent, the additives, such as those mentioned above, should be chosen with caution so as not to make the composition opaque. The anionic surfactants that can be employed in the composition of the present invention include linear alkyl sulfonates and ether sulphates. The sulfonate group, -SOjM bonded to an alkyl, aryl, or hydrophobic alkyl aryl is a highly effective solubilizing group. Sulfonic acids are strong acids and their salts are relatively unchanged by pH. These are stable both to oxidation and, due to the strength of the C-S bond, also to hydrolysis. These interact moderately with the hardness ions CA * and Mg - '*, significantly less than the carboxylates. The modification of the hydrophobe in the surfactants sulfonates, by the introduction of double bonds or ester or amide groups in the hydrocarbon chain or as substituents, produces surfactants that offer specific smoothing benefits. Because the introduction of the S03H function is itself inexpensive, for example, by means of fuming sulfuric acids, S0¿, S0¿, Cl¿, or NaHSO ^, the sulfonates are strongly represented among the high volume surfactants. Although representative sulfonates include alkyl aryl sulfonates, short chain lignosulfates, naphthalene sulfonates, alpha-olefin sulfonates, petroleum sulfonates and sulfonates with ester, amide or ether linkages, the present invention is directed to the use of linear or branched alkyl sulfonates (LAS ), ie linear or branched chain alkylbenzene sulphonates in their surfactant composition. Linear alkylates of these may be normal, iso (branched only at the end) or highly branched and must have at least 10 carbon atoms. Preferred linear alkyl sulfonates of the present invention contain a straight alkyl chain from about 9 to about 25 carbon atoms / more preferably from about 10 to about 13 carbon atoms, and the cation is sodium, potassium, ammonium, mono-, di- or diethanolammonium, calcium or magnesium and mixtures thereof. Suitable straight-chain alkylbenzene sulphonates include C1-? Ü alkylbenzene sulphonates. Linear alkylsulfonates will usually be employed in the composition in an amount in the range from about 5 to about 40, and preferably from 15 to 30% by weight, based on the weight of the composition. The ether sulfates which can be used are short chain alkyl sulphates characterized by the formula Ra0-S04_-X + wherein R1 is an alkyl radical of C12-16 and X is Na, K, Mg, and NH3. These can be manufactured from alkyl alcohols by sulfation with SOj or chlorosulfonic acid. The ether sulfates will usually be employed in the composition in an amount in the range of from about 1 to about 20% and, preferably, from 7 to 14% by weight, based on the weight of the composition. Suitable nonionic surfactants for use as auxiliaries in the dishwashing composition of the present invention include, for example, ethoxylated alcohols characterized by a chain length of Ca-n carbons, having from 5 to 13 moles of ethylene oxide per mole. of alcohol. A particularly preferred ethoxylated alcohol is an ethoxylated nonylphenol having 9 moles of ethylene oxide. The ethoxylated alcohols will usually be employed in the composition in an amount in the range from about 1 to about 20%, and preferably from 5 to 10%, based on the weight of the composition. Other auxiliaries that may be employed include enhancers. Particularly preferred builders include urea and / or sugar because of the improved tactile properties they impart on the dishwashing composition when in contact with human skin. These types of improvers will usually be employed in the composition in an amount in the range from about 5 about 25%, and preferably from 18 to 23% by weight, based on the weight of the composition. The present invention will be better understood from the following examples which are proposed to be illustrative only and are not intended to unduly limit the scope of the invention. Unless stated otherwise, the percentages are by weight.

Example A wash bar according to the present invention was improved with the following formulation.

Component% / weight (a) LAS 35. 5 (b) APG®, 625 * 10. 0 (c) nonylphenol (EO) and 5.25 (d) cocodiethanolamide 4. , 0 Component% / weight (e) ether sulphate 7.5 (f) 1,2-polyethylene glycol 10.0 r (g) urea 20.0 (h) stearic acid (80% pure) 4.0 (i) isopropyl alcohol 3.0 (j) NaOH 1.0 100.0 * APG®, 625 is an alkyl polyglucoside, commercially available from Henkel Corporation, Ambler, PA, in which the alkyl groups contain from 12 to 16 carbon atoms and have an average degree of polymerization of 1.6. The aforementioned surfactants were combined and heated to a temperature of about 55 ° C. The urea was then added to the mixture, with mixing until complete dissolution. The stearic acid was then added with mixing and once everything was in solution, the stearic acid then neutralized with sodium hydroxide. The isopropyl alcohol was then added with mixing. The resulting solution was then emptied into molds and allowed to harden forming a lavatories bar.

Claims (40)

1. A clear / translucent wash bowl composition in the form of stick / paste containing: (a) an alkyl polyglucoside with the general formula 1. R (R, 0) D (Z) d (I) wherein Ri is a monovalent organic radical having from about 6 to about 30 carbon atoms; R is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number that has a value from 1 to approximately 6; (b) a short chain alcohol; (c) a fatty acid; (d) an amide; and (e) a polyol.

2. The composition of claim 1, wherein in the formula I Rx is a monovalent organic radical having from about 8 about 16 carbon atoms, b is 0 and a is a number having a value of about 1.6.

The composition of claim 1, wherein the alkyl polyglucoside is present in the composition in an amount of about 2 to about 40% by weight, based on the weight of the composition.

The composition of claim 1, wherein the short chain alcohol is present in the composition in an amount of about 1 to about 10% by weight, based on the weight of the composition.

The composition of claim 1, wherein the fatty acid is stearic acid.

6. The composition of claim 5, wherein the stearic acid is more than 50o pure.

The composition of claim 1, wherein the stearic acid is present in an amount from about 2 to about 15% by weight, based on the weight of the composition.

The composition of claim 1, wherein the amide is a diethanolamide.

The composition of claim 1, wherein the amide is present in the composition in an amount from about 1 to about 20% by weight, based on the weight of the composition.

10. The composition of claim 1, wherein the polyol is a polyethylene glycol.

The composition of claim 1, wherein the polyol is present in the composition in an amount from about 1 to about 20% by weight, based on the weight of the composition.

12. The composition of claim 1 further contains an auxiliary selected from the group consisting of an anionic surfactant, a nonionic surfactant, an improver and mixtures thereof.

The composition of claim 12, wherein the anionic surfactant is an alkylbenzene sulfonate.

The composition of claim 12, wherein the anionic surfactant is an ether sulfate.

15. The composition of claim 12 / wherein the anionic surfactant is present in the composition in an amount from about 3 to about 40% by weight, based on the weight of the composition.

16. The composition of claim 12, wherein the nonionic surfactant is an ethoxylated alcohol.

The composition of claim 16, wherein the ethoxylated alcohol is a nonylphenol having 9 moles of ethylene oxide.

The composition of claim 12, wherein the nonionic surfactant is present in the composition in an amount of from about 1 to about 20% by weight, based on the weight of the composition.

The composition of claim 12, wherein the improver is selected from the group consisting of urea, sugar and mixtures thereof.

The composition of claim 12, wherein the improver is present in the composition in an amount of from about 5 to about 25% by weight, based on the weight of the composition.

21. A process for manufacturing a transparent / translucent lava-wash composition in the form of a stick / paste which consists of combining: (a) an alkyl polyglucoside with the general formula I. R (R), (Z) "( I) wherein R- is a monovalent organic radical having from about 6 to about 30 carbon atoms; R is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number that has a value from 1 to approximately 6; (b) a short chain alcohol; (c) a fatty acid; (d) an amide; and (e) a polyol.

22. The process of claim 21, wherein in the formula I Ri is a monovalent organic radical having about 8 about 16 carbon atoms, b is O and a is a number having a value of about 1.6.

23. The process of claim 21 / wherein the alkyl polyglucoside is present in the composition in an amount of about 2 to about 40% by weight, based on the weight of the composition.

The process of claim 21, wherein the short chain alcohol is present in the composition in an amount of about 1 to about 10% by weight, based on the weight of the composition.

25. The process of claim 21, wherein the fatty acid is stearic acid.

26. The process of claim 25, wherein the stearic acid is more than 50% pure.

The process of claim 21, wherein the stearic acid is present in an amount from about 2 to 15% by weight, based on the weight of the composition.

28. The process of claim 21, wherein the amide is a diethanolamide.

29. The process of claim 21, wherein the amide is present in the composition in an amount from about 1 to about 20% by weight, based on the weight of the composition.

30. The process of claim 21, wherein the polyol is a polyethylene glycol.

31. The process of claim 21, wherein the polyol is present in the composition in an amount from about 1 to about 20% by weight, based on the weight of the composition.

32. The process of claim 21 further contains an auxiliary selected from the group consisting of an anionic surfactant, a nonionic surfactant, an improver, and mixtures thereof.

33. The process of claim 32, wherein the anionic surfactant is an alkylbenzene sulfonate.

34. The process of claim 32, wherein the anionic surfactant is ether sulfate.

35. The process of claim 32, wherein the anionic surfactant is present in the composition in an amount from about 3 to about 40% by weight, based on the weight of the composition.

36. The process of claim 32, wherein the nonionic surfactant is an ethoxylated alcohol.

37. The process of claim 36, wherein the ethoxylated alcohol is a nonylphenol containing 9 moles of ethylene oxide.

38. The process of claim 32, wherein the nonionic surfactant is present in the composition in an amount from about 1 to about 0% by weight, based on the weight of the composition.

39. The process of claim 32, wherein the improver is selected from the group consisting of urea, sugar and mixtures thereof. -

40. The process of claim 32, wherein the improver is present in the composition in an amount from about 5 to about 25% by weight, based on the weight of the composition.