FR2501225A1 - DETERGENT COMPOSITIONS - Google Patents

Abstract

THE INVENTION RELATES TO DETERGENT COMPOSITIONS. THESE COMPOSITIONS CONSIST OF A SYNERGIC MIXTURE OF A PARTICULAR AMPHOTERIC-FATTY ACID COMPLEX AND SPECIFIC ANIONIC SURFACTANTS. THESE COMPOSITIONS ARE SLIGHTLY IRRITATING TO THE SKIN AND THE EYES AND USE FOR BODY CARE.

Description

-1- Detergent or detergent compositions provided

  for use as detergents for

  porels should not only be good

  characteristics of debridement and foam formation, but must also be non-irritating or have a low

  potential irritant potential on the skin and eyes.

  Synthetic detergents which are useful in such detergent or detersive compositions are well known in the art and include detergents or

  anionic, cationic, amphoteric and non-

  ionic, as they are usually called. The

  surfactants generally have the best

  properties of foam formation points of view, cleaning and final results are anionic detergents. Thus, most detergent or detergent compositions

  intended for use in body care

  hold anionic surfactants as one of the active ingredients. These surfactants, however, tend to be very irritating to the skin and eyes in the proportions normally used, that is, more than% of the weight of the total composition. For this reason, detergent compositions for use in

  for body care containing anionic surfactants

  are substituted by substituting a significant amount of nonionic surfactants which are

  generally mild, but have a lower ability to

  foam and debris. Some amphoteric surfactants have also been reported to have a slight

  irritating effect on the eyes. Although many

  detergent or detergent positions are available in

  trade, there remains a need for

  in which the irritating action may be

  substantially eliminated without sacrifice on other

  desired properties such as detersive powers and

foaming.

-2-

  Several US patents describe composites

  in which both ampho-

  and non-ionics are incorporated into detergent compositions containing anionic surfactants. Thus, in U.S. patents Nos. 2,999,069 and 3,055,836 describe shampoo compositions comprising certain mixtures of anionic, anionic, anionic, ethoxylated and nonionic polyethovyl anionic surfactants. In addition, in U.S. No. 3,928,251 describes shampoo compositions comprising certain mixtures of anionic, nonionic and zwitterionic surfactants. Likewise, in the U.S. Patent. No. 3,950,417, there are described shampoo compositions for which low irritancy is claimed

  on the eyes. In these compositions, non-surfactants

  Ionic and amplohteres were added to modify anionic surfactants. All of these compositions include a nonionic surfactant as an essential component as well.

  although anionic surfactant and, as mentioned above,

  above, these surfactants have various disadvantages.

  An object of the present invention is therefore to provide

  improved detergent or detergent compositions.

  Another aim is to provide compositions which

  gents or detergents with low irritancy

on the eyes and skin.

  Yet another object is to provide improved detergent or detersive compositions which exhibit good sudsing properties, including

  - excellent stability of the foam.

  Other aims and advantages of the invention will result

  again from the detailed description below.

  We achieve the above goals and other particular

  advantages and features of the present invention through

  detergent or detersive positions comprising a synergistic blend of surfactants which exhibit low skin-eye irritancy and good sudsing properties. More particularly, this

  The invention relates to detergent or detergent compositions.

  comprising a synergistic mixture of a particular fatty amphoteric fatty acid complex and particular anionic surfactants containing at least one carboxylic acid moiety. In general, the present invention comprises a synergistic mixture of a particular amphoteric-fatty acid compound and a particular anionic surfactant in a ratio of about 1: 4 to 4: 1. The term "synergistic mixture" as used herein refers to a mixture of two discrete compounds that has an initial degree of foam height and quality greater than the sum of heights

  foam initials of the individual compounds.

  The particular amphoteric-fatty acid complexes which have been found useful in the present invention are non-zwitterionic in nature and are represented by the formula eo LRc-2-tN2 wherein R 1 is an alkyl or substituted alkyl radical containing from 6 to 18 carbon atoms. about one carbon and mixtures thereof, R2 is an alkyl group containing from about 8 to about 18 carbon atoms and mixtures thereof or an alkylamido radical of the formula OZ

R3-C-N-Y

  wherein R 3 is an alkyl radical containing about 8 to 18 carbon atoms, Z is H or a lower alkyl radical containing 1 to 4 carbon atoms; and Y is a lower alkylene radical containing from 1 to 4 carbon atoms; Al and A, are identical or different and are chosen from the following anionic salt moieties CH2CH2-COOX] n + CH2-COOX] n, {CH2CHOH-CH2-SO3X] n, + CH2-CHOH-CH2-OPO3x] # X is a water-soluble cation such as Na, K, Ca ++, Mg +, etc., and n is an integer selected from 1 and 2, with the proviso that if only one of the portions A1 and A2 is selected from the salt portions anionic above, the other may be a lower alkyl radical or lower hydroxyalkyl radical containing from 1 to 4 atoms

of carbon.

  The amphoteric-fatty acid complexes that are useful in the present invention are novel compounds described and claimed in a patent application.

  filed that same day on behalf of the plaintiff.

  and can be prepared according to the methods described therein; the teachings of this patent application

  are incorporated herein by reference.

  Representative examples of compound complexes

  In this invention, the fatty acid-fatty acid useful in

  take the following: (a)) [X-C-N C240i (A) | R-C-O1ll23-C-N (CH2) 2-N> ^

  R1 is a ClH23-C18H37 mixture.

-5- (9 r 19 CH CH cHCOONa

18) R-C-0 C1L4H2 -N

  (_) _R 9] CH2CH2COONa o R1 is an 80% / 20% mixture of tallow and coconut fatty acids;

C) 1-C-R2-C-N- (CH 2) 2-N

  Wherein R 1 is tallow fatty acid and R 2 is C 11 H 23 -C 17 H 25; H o R1 is a 70% / myristisue mixture;

CH2CHOHCH2S03

CH2CHOHCH2SO3 J

% of lauric acids and G

(ú) [

(E) JC C12H25 N-CH 2CH2C0011to

  o R1 is tallow fatty acid -6- 1 CH7CH2COONa @

THIS/ -

  (F), 225c C42-N - CH2CH2COCoo.a (G) RC-O- [C12-C25]

R1 is a C6H13-C 8H37 mixture.

  The amphoteric-fatty acid complex complexes useful in the compositions according to the invention are present in the range of about 1 to 50% by weight of the total composition, preferably about 5 to 15% by weight of the composition.

total composition.

  The particular anionic surfactants which have been found to be useful in the present invention are those containing at least one carboxylic acid portion and are selected from sulfosuccinates, alkylcarboxylates, carboxylates of fatty acids and alpha-sulfonated esters, alkyl succinates, alkylsarcosinates, and the like. and the fatty acid-protein condensation products. All of these compounds are well known in the art and can be prepared

according to well known methods.

  Sulfosuccinates are of the general formula o0 ii

R-0-C-CHCH2COOX

  OSO3Na and can be prepared by reaction of maleic acid with a suitable fatty alcohol followed by addition of NaHSO3 to

the double bond.

  The carboxylates of fatty acids and of alpha esters

  sulphonated are represented by the following general formulas

2501225 '

R-CH-C-OX 'and S3X

R-CH-C-OR '

  x S3X respectively and can be prepared by sulfonation

  suitable fatty acids and esters.

  The alkylcarboxylates are of the following general formula: R-O / (CH) 207a-CH2COOX wherein a is from 1 to 4; and these compounds can be prepared by the synthesis of Williamson's ethers which makes

  react the reaction of an alcoholate with chloro

  acetic. Alkyl succinates are of the general formula

R-O-C-CH2CH2COOX

  and are the reaction product of a suitable fatty alcohol

  with succinic acid or succinic anhydride.

  The alkylsarcosinates are of the general formula OX s' |

R-C-N-CH2COOX

  and are the reaction product of a suitable fatty acid with a substituted lower amine such as glycine or

N-methyl glycine.

  The fatty acid-protein condensation products are of the general formula

O R 'O R "

not! I

R-C- (NH-C-H-C-NH-CH) COOX

  n and are the reaction products of a suitable fatty acid

with an amine hydrolyzate.

  Specific examples of suitable anionic surfactants include:

0 0

  (AA) C 11 H 23 O-C-CHCH 2 -C-O-Na osO 3 Na O S (BB) C 12 H 25 -CH-C-O-Na SO 3 Na I

(CC) C H -CH-C-OCH

21, 3

S03Na

O O

I! I.

(DD) R-O-C-CH2-CH2-C-OK

  R is a 50/50 mixture of C12EH25 -C14H29 (EE) C13H27-O- / - (CH2) 2074 CH2COONa

O CHO CH

N 30, 3

  (FF) CH (C- {NH-CH-C-NH-CH) 50COONa O CH3 (GG) C11H23-CN-CH2COO0Na The anionic surfactants useful in the compositions according to the invention are present in a proportion of about 2 to 50 % of the weight of the total composition, preferably about 5

  at 90% of the weight of the total composition.

  In addition, to obtain the desired results of the present invention, the amphoteric fatty acid complex and the particular anionic surfactant must be present.

  in a ratio of about 4: 1 to about 1: 4, preferably

between about 2: 1 and about 1: 2.

  In the preparation of various mixtures and compositions, if desired and compatible, various other surfactants may be used such as other anionic surfactants, nonionic, amphoteric, cationic surfactants, etc. In addition to these others -9-

  surfactants, other ingredients added in a conventional manner

  Detergents to body care detergent or detergent compositions, such as dyes, preservatives, fragrances, thickeners, opacifiers, conditioners, emollients, buffering agents, etc. may be added in minor amounts. . Ingredients such as dyes, preservatives and perfumes usually together constitute less than 2% of the weight of the total composition and the thickeners may be added from about 1 to about 3% of the weight of the total composition. Detergent or detergent compositions according to

  present invention may be in the form of

  liquid detergent or bar compositions,

as desired.

  Liquid detergent compositions according to the present invention

  The present invention can be prepared by mixing the amphoteric fatty acid complex and the anionic surfactant at room temperature or at slightly elevated temperatures (about 50 ° C) and then adding enough deionized water to bring the composition to three quarters about its expected weight. Other ingredients such as other surfactants, various detergency builders, fillers, vehicles, perfumes, preservatives, gelling agents, etc., are added as needed, and then the rest of the water. The pH is then adjusted to the desired range by the addition of a strong acid, for example HCl, or a strong base, for example NaOH,

as needed.

  Bar detergent compositions according to the present invention.

  This invention can be prepared by mixing the amphoteric fatty acid complex and the anionic surfactant.

  in a rotary mixer.to steam jacket at temperatures of

  eratures between 60 and 80 ° C. Other surfactants, fillers, bleaches and process oils may be added, as needed, to the hot slurry. After a mixing operation sufficient to ensure homogeneity and the appropriate moisture content, the product is formed into flakes by cold rolling or drum drying. Colorantsand

  perfumes are added to the glitter in an amalga-

  normal meter together with additional water to allow for proper bar formation. After a sufficient mixing operation, the flakes are crushed and passed to the extruder for forming flanges which are then cut into bonds before embossing.

form of bars.

  The detergent compositions according to the present

  invention can be tried with regard to irri-

  The following modified Draize-Test test (J.H. Draize and others, ToiletGods No. 17, May 1952, No. 1,

Proc. Sci. Sect.).

  One sample of 0.1 cc of a neutral composition tested in one eye of a white rabbit is placed dropwise, the other eye serving as a control. Six rabbits are used for each composition. Observations are made

  after 1, 24, 48, 72 and 96 hours and 7 days after the instillation

  initial release; a second instillation is performed and

  a third after the observations at 24 and 48 hours.

  The results may vary from substantially no change or only slight irritation in the appearance of the rabbit eye after 7 days to severe irritation and / or complete corneal opacity. Notes on ocular lesions on the cornea, iris and conjunctiva are given, with a higher score indicating greater eye irritation and adding notes

  to obtain a total numerical value for each

  for six rabbits and we take the average. The average score is an indication of the irritating power of the composition tested. Based on the mean score, a descriptive assessment of the irritation can be

  example nil, weak, moderate, severe, as the case may be.

  The detergent compositions according to the invention give a large volume of foam and, moreover, a remarkable stability of the foam, as measured by an adaptation of the well-known Ross-Miles Oil and Soap test principle.

18.9-102 (1941):

  Anhydrous lanolin, cosmetic grade, is mixed with dioxane (technical grade) in the proportion of 2.5 grams of lanolin per 100 grams of dioxane. The lanolin is mixed first with 25 cm of dioxane. This mixture is heated to 450C in a boiling water bath so as to dissolve the lanolin in dioxane. The remaining dioxane is then added and mixed. This solution of lanolin in dioxane, which

  is kept in an amber bottle, must be fresh

  prepared on the day of the tests.

  The composition to be tested is diluted by adding 376 cc of distilled water to 4 grams of the composition, and then adding 20 cc of the lanolin solution in the dioxane described above while stirring. Heat is produced when the lanolin solution in dioxane is added to the solution of the composition in water and care should be taken in controlling the temperature of this solution at 24-250C. These intermediate solutions must therefore be reset at 230 ° C. before the melting operation. The cooling of the lanolin solution in dioxane must therefore be

  progressive to avoid a precipitation of the lanolin.

  This will give a final solution of a temperature of

24-250C.

  The final solution of the test composition of water, dioxane and lanolin described above is then passed in the usual manner into a modified Ross-Miles foam column. All tests are done in duplicate, and we take the average of the two results. We

  determines the stability of the foam by measuring the

  the foam height after two minutes, expressed as a percentage of the initial height.

  Specific modes of implementation of the pre-

  This invention is illustrated by the examples shown in FIG.

  following. It is understood, however, that they do not

do not limit the invention.

  Examples I to IX The following compositions are prepared by mixing the surfactant components, adjusting the pH to 7.2 0.2 with a dilute acid or base as required and adding water deionized up to 100%:% by weight

EXAMPLES

I II III IV VI VI VII VIII IX

Coated B 5.0 2.5 2.5 2.5 2.5

lauryl succinic acid5.0 2.5 -

  disodium sulfooocoate 5.0 2.5 lauryl ether (4) carboxylate 5.0 2.5 disodium lauryl sulfosuccinate 5.0 2.5 deionized water 100% complement

Example X

  The compositions prepared in Examples I-IX are tested for foam formation in hard water using the modified Ross-Miles method described above and the results are as follows: Example Initial Height foam in mm hard water 200 ppm

I 358

II 330

III 348

IV 330

V 330

VI 365

VII 375

VIII 368

IX 378

  As can easily be seen from the results

  above, compositions containing a mixture of compounds

  Particular amphoteric compound-fatty acid plexes and surfactants according to the present invention (Examples VI-IX) show a svnercic increase in initial foam height. It has also been observed that the quality of the foam produced by the compositions according to the present invention is higher than that of the other compositions in that it is denser and more creamy. A foam produced of this nature is not only perceived to be better by the user, but is also capable of supporting and suspending soiling in a manner superior to the more open, lace-like foam, compositions examples I to IV, and so these soils are more

easily eliminated.

Example XI

  A bar-detergent composition is prepared by introducing into a steam jacketed rotary mixer 23.7 parts by weight of stearic acid, 13.3 parts by weight.

  weight of dextrin, 35.1 parts by weight of alpha-sulfo

  disodium cocoate, 14.2 parts by weight of compound A, 0.2 part of titanium dioxide and 10.0 parts of water. The mixture is heated to 50-60 ° C and mixed until homogeneous and the pH is adjusted to 7.2 + 0.2 with a solution of 14% NaOH. The resulting product is cooled, flaked rolled, milled, extruded and stamped into bars having the following composition:% by weight stearic acid 23.7 dextrin 13.3 alphasulfococoate disodium 35.1 compound A 14.2 TiO2 0.2 NaOH 50% 5.2 deionized water 8.3, 0 The resultant bar foams copiously in hard or soft water and does not produce calcium soap deposits, and it has also been found by tests that it is only

mildly irritating to the eyes.

Example XII -

  A low pH detergent bar composition is prepared according to the procedure of Example XI and has the following composition:% by weight compound B 20.00 stearic acid 15.00 polyethylene glycol 4000 5.00 dextrin 10.00 talc 10.00 disodium lauryl sulfosuccinate 35.00 deionized water 5.00, 00

Example XIII

  A liquid cream soap product is prepared as follows: 87.5 parts by weight of compound C and 0 parts by weight of lauryl succinic acid are introduced into a

  container equipped with an agitator and a heating device

  The pH is adjusted to 7.0 with a dilute solution of NaOH and then 1 part of propylene glycol and 95 grams of water are added. deionized. The mass is cooled to 30 ° C. and 2 parts of a perfume are added before filling the tubes with the resulting product, which has the following composition:% by weight compound C 42.57 lauryl succinate 9.73 propylene glycol 0, 48 perfume 0.97 deionized water 100% complement The product is an opaque and smooth soft creamy gel

  easily distributed by tubes.

Example XIV

  An opaque liquid soap having the following composition is prepared:% by weight compound D 30.0 lauryl sarcosinate 20.0 polyethylene glycol distearate 6000 3.0 deionized water complement to 1 (The pH of the composition above is adjusted to 6.0

with dilute HCl.

Example XV

  An opaque liquid soap having the composition

  following: O0% wt% sulfosuccinate 3.00 compound A 2.50 lauryl (3) ammonium ether sulfate 3.00 polyoxyethylene monolaurate 80 sorbitan 5.00 preservative 0.10 dye and fragrance 0.25 deionized water supplement at 100 The pH of the above composition is adjusted to 6.0

with dilute HCl.

  It is obvious that the invention is not limited to the embodiments described above and that it can be

bring all variants.

-17-

Claims (10)

  A mildly irritating detergent or detergent composition in which the active ingredients consist essentially of (a) about 1 to 50% by weight of an amphoteric-fatty acid complex of the formula - [RoJ [R 2 -N]] in which R 1 is an alkyl or substituted alkyl radical containing from about 6 to about 18 carbon atoms and mixtures thereof; R2 is an alkyl radical containing from about 8 to 18 carbon atoms and mixtures thereof or alkyl-amido of the formula # 1 4R3-C-N-Y]   wherein R 3 is an alkyl radical containing from about 8 to 18 carbon atoms, Z is H or a lower alkyl radical containing from 1 to 4 carbon atoms and Y is a lower alkylene radical containing 1 to 4 carbon atoms; A1 and A2 are identical or different and are chosen from the following anionic salt portions: ## STR2 ## is a water-soluble cation and n is an integer selected from 1 and 2 with the proviso that if only one of A1 and A2 is selected from the anionic salt moieties above, the other may be a radical lower alkyl or lower hydroxyalkyl containing from 1 to 4 carbon atoms; and (b) about 2 to 50% by weight of an anionic detergent selected from sulfosuccinates, alkylcarboxylates, carboxylates of fatty acids and alpha-sulfonated esters, alkyl succinates, alkylsarcosinates, and the like.   fatty acid-protein condensation products.   2. A composition according to claim 1, characterized in that the amphoteric-fatty acid coposed complex and the anionic surfactant are present in a ratio of 1: 4. and about 4: 1.   3. Composition according to claim 1, characterized in that the amphoteric-fatty acid complex is of the formula ## STR2 ## C2H40H - [Cleo-C- "(C.2-2-N! LR1-C-02 Ca ET22 CH2COOI in which R1 is a mixture C11H23-C18H37 1 and 123 18 37 ' 4. Composition according to claim 1, characterized in that the fatty acid amrphoteric acid complex is of the formula r LC2H1CH2cHOeo; RC_ C12H25-N CH 2 CH 2 COONa.   in which R1 is a mixture C6H13 - C18H37.   -19- 5. The composition as claimed in claim 1, characterized in that the complex anodic-fatty acid complex is of the formula ## STR2 ## ## STR2 ## 6. The composition according to claim 1, characterized in that the amphoteric-fatty acid complex constitutes from about 15% of the weight of the total composition. 7. Composition according to claim 1, characterized   in that the anionic surfactant is an alkylsarcosinate.   8. Composition according to Claim 1, characterized   in that the anionic surfactant is a sulfosuccinate.   9. Composition according to claim 1, characterized   in that the anionic surfactant is an alkyl succinate.   10. Composition according to claim 1, characterized in that the anionic surfactant constitutes from 5 to 40%   about the weight of the total composition.