Note: Descriptions are shown in the official language in which they were submitted.
r
~ 9 _____ _
,
FATTY ACID CONTAINING DETERGENT COA~IPOSITIONS
Jean-Luc H. M. Wertz
Pierre C. E. Goffinet
Technical Field
The present invention relatas to detergent compositions,
preferably liquid detergents, containing an anionic synthetic
surfactant, a cosurfactant selected from the group consisting of
certain c-juaternary ammonium, diquaternary ammonium, amine,
diamine, amine oxide and di~amine oxide) surfactants, and a fatty
10 acid. The compositions herein have a molar ratio of the anionic
synthetic surfactant to the cosurfactant of at least 1 and ar~
formulated to prov7de an init~al p~l of from about 6.0 to about 8.5
at a concentration of from~about 0.190 to about 2% by weight in
water at 20C. The compositions provid~ both superior greasy/
oily soil removal and good builderlpH sensitive soil removal at the
near-neutral wash pH.
Background Art
U.S. Patent 4,285,841, Barrat et al, issued August 25, 1981,
discloses liquid detergents containing anionic surfactants, nonionic
20 surfactants and from about 8% to about 20% by weight of a fatty
acid. The compositions have a pH of from about 6.0 to 7.S.
U.S. Patent 4,287,082, Tolfo et al, issued September 1,
1981, discloses liquld detergents containlng saturated fatty acids ,
enzymes, enzyme-accessible calcium and selected short-chain
25 carboxylic acids~
U.S. Patent 4,321,165, Smith et al, issued March 23, 1982,
discloses built detergents containing anionic, nonionic and cationic
surfactants. The compositions provide a solution pH of at leas~
about 6, and preferably greater than about 8.
Summary of the Invention
The present invention encompasses detergent compositions
comprising:
(a) from about 2g6 to about 60% by weight of an anionic
synthetic surfactant;
(b) from about 0.259~i to about 12~ by weight of a cosur-
factant selected from the sroup consisting of:
` ~
~2~1~S~
-- 2 --
(i) quaternary ammonium surfactants having the
formula:
~R2[oR3)yl~R4(0R3)yl2R5N X
wherein R is an alkyl or alkyl benzyl group having from about 8
to about 18 carbon atoms in the alkyl chain; each R3 is selected
from the group ~onsisting of -CH2CH2-, -CH2CH(CH3)-,
-C:H2CH(CH2OH)-, -CH2CH2CH2-, and mixtures thereof; each R
is selected from the group consisting of C1 4 alkyl, C1 4 hydroxy-
alkyl, benzyl, ring structures formed by joining the two R
groups, -CH2C:HOHCHOHCOR6CHOHCH20H wherein R6 is any
hexose or hexose polymer having a molecular weight up to about
1000, and hydrogen when y is not 0; R5 is the same as R4 or is
an alkyl chain wherein the tGtal number of carbon atoms of R2
plus R5 is not more than about 18; each y is from 0 to about 10
and the sum of the y values is from 0 to about 15; and X is any
compatible anion
tii) diquaternary ammonium surfactants having the
formula:
lR2(OR3)~][R4(OR3)y]~N R3N R lR (OR )y]2 (X )2
wherein R, R3, R4, R, y and X are as defined above;
(iii) amine surfactants having the formula:
lR ~oR3)y ][R4~oR3)y]R5N
wherein R2, R3, R4, R5 and y are as defined above;
(iv) dlamine surfactants having the formula:
[R2(oR3))~3lR4(R3)Y]iiR3NR5lR4(oR3)y]
wherein R, R, R, R and y are as defined above;
(v) amine oxide surfactants having the formula:
1 R2(QR3) ] [ R4(oR3)y] R N ~0
wherein R2, R3, R4, R5 and y are as defined above; and
(vi) di(amine oxide) surfactants having the formula:
lR lOR )y][R (OR )y]NR3NR5[R4(OR3)y]
wherein Pc, R, R, R and y are as defined above; and
(c) from about 5% to about 409~ by weight of a fatty acid
containing from about 10 to about 22 carbon atoms;
~2~3519
said composition having a molar ratio of the anionic synthetic
surfactant to the cosurfactant of at least 1 and formulated to
provid~ an initial pH of from about 6.0 to about 8.5 at a concen-
tration of from about 0.1% to about 2% by weight in water at
20~.
Detailed Descrip ion of the !nvention
The detergent compositions herein contain an anionic syn-
thetic surfactant, a cosurfactant sslected from certain quaternary
ammonium, diquaternary ammonium, amine, diamine, amine oxide
and di lamine oxide) surfactants, and a fatty acid material . The
C01pO8itiollS can be in any form, Tnclud~ng granules, liquids,
tablets or p~stos. However, liquid compos~t~ons are highly pr~-
ferred since the compositions herein are especially effectivo when
applied directly to solls and stains in a pretreatment step. The
compositions herein must have a molar ratio of the anionic syn-
thetic surfactant to the cosur~actant of at least one, preferably
from about 2 :1 to about 20 :1, and are formulated to provide an
initial pH of from about 6.0 to about 8.5 at a concentration of
from about 0,1~; to about 2% by weight in water at 20C. It has
been found that the addition of the cosurfactant to the fatty acid
containing detergents herein provides important greasy/oily soil
removal benefits only at the near-neutral wash pi-i. The wash pH
i5 preferably from abo-ot 7.0 to about 8.5, more preferably from
about 7.5 to about 8Ø
Whlle not Tntending to be limited by ~heory, it is believed
that the cosurfactant and anlonlc surfactant herein form complexes
which enhance packing of the surfactants at the oillwater inter-
face, thereby lowering interfacial tension and improving deter-
gency. tThe amine, diamine, amine oxide and di(amine oxide)
surfactants would be at least partially protonated at the near-
neutral pH and thus can ~orm charges species capable of complex-
ing with the anionTc surfactant. ) At the defined pH range
recited herein, the fatty acid component exists in a chemical form
which is optimal for effective detergency. At too low a pH, the
non-dissociated form of the acid is ineffective. It is also believed
that the higher pH s (i.e., above about 8.5) affect the interaction
.. . .... .. .. . ..... ... . ..
~2¢~519
of the fatty acid with the cosurfactant and water hardness and
result in the formation of undesirable species at the oillwater
interface which reduce de~ergency performance~
Anionic S nthetic Surfactant
_ Y
The detergent compositions herein contain from about 2% to
about 60% by weight of an anionic synthetic surfactant, or mix-
tures thereof. The anionic surfactant preferabiy represents from
about 596 to about 4n%, and more preferably from about 10% to
about 20%, by weight of the detorgent composition. Anionic sur-
factants useful herein are disclosed in U.S. Patent 4,285,841,
Barrat et al , issued August 25 , 1 981~ and in U . S. Patent
3,919,678, Laughlin et al, issued December 30, 1975,
Useful anionic surfactants include the water-soluble salts,
particularly the alkali metal, ammonium and alkylolammonium
( e . g ., monoethanolar~monium or triethanolammonium) salts , of
organic sulfuric reaction products having in their molecular
structure an alkyl group containing from about 10 to about 20
carbon atoms and a sulfonic acid or sulfuric acid ester group.
llncluded in the term "alkyl" is the alkyl portion of aryl groups.)
Examples of this group of synthetic surfactants are the alkyl
sulfates, especially those obtained by sulfating the higher alcohols
( C8-CI8 carbon atoms) such as those produced by reducing the
glycerides of tallow or coconut oil; and the alkylbenzene sul-
fonates Tn which the alkyl group contains from about 9 to about 15
carbon atoms, In straight chain or branched chain configuratlon,
e.g., thosc of the type described in United States Pat~nts
2 ,220 ,099 and 2 ,477 ,383. Especially valuable are llnear stralght
chain alkylbenzene sulfonates in which the average number of
carbon atoms ;n the alkyl group is from about ll to 14.
Other anionic surfactants herein are the water-soluble salts
of: paraffin sulfonates containing from about 8 to about 24 (pre-
ferably about 12 to 181 carbon atoms; alkyl glyceryl ether sul-
fonates, especially those ethers of C8_18 alcohols (e.g., those
derived from tallow and coconut oil); alkyl phenol ethylene oxide
. . . ... ... . .. ... . .. .. . . ... . . . . .. . .
31.;2~3519
-- 5 --
ether sulfates sontaining from about I to about 4 units of ethylene
oxide per molecule and from about 8 to about 12 carbon atoms in
the alkyl group; and alkyl ethylene oxide ether sulfates con-
taining about I to about 4 units of ethylene oxide per molecule
and from about 10 to about 20 carbon atoms in the alkyl group.
Other useful anionic surfactants herein include the water-
soluble salts of esters of a-sulfonated fatty acids containing from
about 6 to 20 carbon atoms in the fatty acid group and from
about I to 10 carbon atoms in the ester group; water-soluble salts
of 2-acyloxy-alkane-l-sulfonic acids containing from about 2 to 9
carbon atoms in the acyl group and from about 9 to about 23
carbon atoms in the alkane moiety; water-soluble salts of olefin
sulfonates containing from at,out 12 to 24 carbon atoms; and
3-alkyloxy alkane sulfonates containing from about I to 3 carbon
atoms in the alkyl group and from about 8 to 20 carbon atoms in
the alkane moiety.
Particularly preferred anionic surfactants herein are the
alkyl sulfates of the ~ormula
Ro(c2H4o)xso3M
wherein R is an alkyl chain having from about 8 to about 18
carbon atoms, saturated or unsaturated, and the longest linear
portion of the alkyl chain. is 15 carbon atoms or less on the
average, M i5 a cation which makes the compound water~soluble,
especially an alkall rnetal, ammonium or substituted ammonium
cation, and x is from 0 to about 4. Most preferred are the
non ethoxylated C12_15 prlmary and secondary alkyl sulfates,
Under cold water washing conditlons, i~e., less than about 65f
(18.3Cl, ~t is preferred that there be a mixture of such alkyl
sulfates .
Mixtures of the alkyl sulfates with the above-described
alkylbenzene sulfonates, paraffin sulfonates, alkyl glyceryl ether
sulfonates and esters of a -sulfonated fatty acids, particularly
with the C~ 3 linear alkylbenzene sulfonates, are also
preferred .
Cosurfactant
:
- -
l Z~B~9
-- 6 -
The compositions herein also contain from about 0.25% to
about 12%, preferably from about 0.5~ to about 8%, more
preferably from about 1~6 to about 4%, by weight of a cosurfactant
selected from the group of certain quaternary ammonium,
diquaternary ammonium, amine, diamine, amine oxide and dilamine
oxide~ surfactants. The quaternary ammonium surfactants are
particularly preferred.
The quaternary ammonium surfactants herein are of the
formula:
[R2(oR3)y][R4(0R3)y]2RSN X
wherein R is an alkyl or alkyl benzyl group having from about 8
to about 18 carbon atoms in the alkyl chain; each R3 is selected
from the group consisting of -CH2CH2-, -C~i2CH(CH3)-,
-CH2CH(CH20H)-, -CH~CH2CH2-, and mixtures thereof; each R
.5 is selected from the group consisting of C1 4 alkyl, C1 4
hydroxyalkyl, benzyl, ring structures formed by joining the two
R4 groups, -CH2CHOHCHOHCOR6CHOHCH20H wherein R6 is any
hexose or hexose polymer having a molecular weight less than
about tO00, and hydrogen when y is not 0; RS is the same as R4
or is an alkyl chain wherein the total number of carbon atoms of
R plus RS is not more than about 18; each y is from 0 to about
10 and the sum of the y values is from 0 to about 15; and X is
any compatible anion.
Preferred of the above are the alkyl quaternary ammonium
surfactants, especially the mono-long chain alkyl surfactants
described in the above formula when R5 is selected from the same
groups as R4. The most preferred quaternary ammonium
surfactants are the chloride, bromide and methylsulfate C8 16
alkyl trimethylammonium salts, C8_16 alkyl
di(hydroxyethyl)methylammonium satts, the C8_16 alkyl
hydroxyethyldimethylammonium salts, and C8 16 alkyloxypropyl
trimethylammonium salts. Of the above, decyl trimethylammonium
methylsulfate, lauryl trimethylammonium chloride, myristyl
trimethylammonium bromide and coconut trimethylammonium
chloride and methylsulfate are particularly preferred.
_. _ . . . . .
. .
51~
-- 7 --
Under cold water washing conditions, ~Oe., less than about
65F. ~1B.3~C), the C8 10 alkyltrimethyl ~mmonium surfact~nts
are particularly preferred since they have a lower Kraft boundary
and, therefore, a lower crystallization temperature than the
S longer alkyl chain quaternary ammonium surfactants herein.
Diquaternary ammonium surfactants herein are of the
formula:
IR (9R )yltR (OR3)y]~,N+R3N+R51R4(0~3) 1 (X~l
wherein the R, R, R, R, y and X substituents are as defined
above for the quaternary ammonium surfactants. These
substituents are also preferably selected to provide diquaternary
ammonium surfactants c~rresponding to the preferred quaternary
ammonium surfactants~ Particularly pr~ferred are the C8 16 alkyl
pentamethylethylenediammonium chloride, bromide and
methylsulfate salts.
Amine surfactants useful ^nerein are of the formula:
1 R (oR3~ ] [ R4(oR3) 1 RSN
wherein the R2, R3, R~, R5 and y substituents are as defined
above for the quaternary ammonium surfactants. Particularly
preferred are th~ C12~16 alkyi dimethyl aminesO
Diamine surfact~ants herein are of the formula
1 R2(~)R3]y1 I R4(~ 3)y] NR3NR51 ~4(oR )yl
wherein the R~, R3, R4, R5 and y substituents are as defined
above. Preferred are the C1 2-16 alkyl trimethylethylene
diamines.
Amine oxide surfactants useful herein are of the formulla:
I R~[oR3)y] ~ R4(0R3)yl RSN ~0
wherein the R2; R3, K4, R5 and y substituents are also as
defined above for the quaternary ammonium surfactants.
Particulariy preferred are ~he C12 16 alkyl dimethyl amine oxides.
Di(amine oxide) surfactants herein are of the formula:
I R2 ( oR3 l ] ~ R4 (oR3 ) 1 NR3 NR5 I R4 (0~ ) y l
wherein the R2, R3, R4, R5 and y substituents are as defined
above. Preferred is C12 16 alkyl trimethylethylene di(amine
oxide~ .
... .. -- ~
lZ~19
Fatty Acid
The compositions of the present invention contain from about
5~ to about 409~, preferably from about 7% to about 30~6, most
preferably from about 109~ to about 20%, by weight of a fatty acid
5containing from about 10 to about 22 carbon atoms. The fatty
acid can also contain from abou~ 1 to about 10 ethylene oxide
units in the hydrocarbon chain.
Suitable fatty acids are saturated and~or unsaturated and
can be obtained from naturai sources such as plant or animal
10esters le.g., palm kernel oil, palm oil, coconut oil, babassu oil,
safflower oil, tall oil, castor oil, tallow and fish 0il5, grease, and
mixtures thereof) or synthetically prepar~d (e.g., via the
oxidatlon of petroleum or by hydrogenation of carbon monooxide
via the Fischer-lTropsch process). Examples of suitable saturated
15fatty aclds for use in the compositions of this invention include
capric, lauric, myristic, palmitic, stearic, arachidic and behenic
acid. Suitable unsaturated fatty acid species include:
palmitoleic, oleic, linoleic, linolenic and ricinoleic acid. Example~
of preferred fatty acids are saturated C1 0-C1 4 (coconut) fatty
20acids, from about 5:1 to 1:1 ~preferably about 3:1) weight ratio
mixtures of lauric and myristic acid, and mixtures of the above
lauric/myrlstlc blends with oleic acid at a weight ratio of about
4:1 to 1:4 mixed lauric/myristic: oleic.
Op_ional Components
25The compositions of the present invention also preferably
contain up to about 30%, preferably from about 19~1 to about 2096,
more preferably from about 5% to about 15%, by weight of an
ethoxylated nonionic surfactant. These materials are described in
U.S. Patent 4,285,841, Barrat et al, issued August 25, 1981,
30Preferred are the ethoxylated
alcohols and ethoxylated alkyl phenols of the formula
R(OC2H4)nl)H, wherein R is selected from the group consisting of
aliphatic hydrocarbon radicals containing from about 8 to about 15
earbon atoms and alkyl phenyi radicals in which the alkyl groups
35contain from about 8 to about 12 carbon atoms, n is from about 3
,. .
-
~Z~3519
_ 9 _
to about 9, and said nonionic surfactant has an HLI3
lhydrophile-lipophile balance) value of from about 10 to about 13~
These surfactants are more fully described in U.S. Patent
1~,284,532, Leikhim et al, issued August 18, 1981,
Particularly preferred are ethoxylated
alcohols haviny an average of from about 10 to about 15 carbon
atoms in the alcohol and an average degree of ethoxylation of
from about 3 to about 8 moles of ethylene oxide per mole of
alcohol .
The compositions herein also preferably contain up to about
40%, more preferably from about 1% to about 309~, by weight of a
detergent builder material. While all manner of detergent builders
known in the art can be used in the present compositions, the
type and level of bui Ider must be selected such that the final
composition has an initial pH of frorn about 6.0 to about 8.5 at a
concentration of from about 0.19~ to about 19~ by weight in water
at 20~C . Detergent builders are described in U . S . Patent
4,321,165, Smith e~ al, issued March 23, 1982,
In the preferred liquid detergent
compositions herein, the builder preferably represents from about
1% to about 209~, more preferably from about 3% to about 10%, by
welght of the composition. Preferred builders for use in liquid
detergents herein are described in U,S. Patent 4,284,532, Leikhim
et al, issued August 18, 1981,
A pa'rticularly preferred builder Is citric acid.
Other preferred components ~or use In liquid detergents
herein are the neutralizing agents, buffering agents, phase
regulants, hydrotropes, enzymes, enzyme stabilizing agents,
polyacids, suds regulants, opacifiers, antioxidants, bactericides,
dyes, perfumes, and brighteners described in the U . S . Patent
4,285,841, Barrat et al, issued August 25, 1981,~
- Preferred neutralizing agents for use
herein are organic bases, especially triethanolamine and
monoethanolamine, which result in better detergency performance
' than inorganic bases such as sodium and potassium hydroxides.
.. . .. _ . .. .
..
~Z~Sl~ -
- 10 -
Particularly preferred compositions herein contain from about 0.196
to about 296 by weight of detersive enzymes, especially the
amylases, proteases, and mixtures thereof, of the type well
known to detergent formulators.
The following non-limiting examples illustrate the
compositions of the present invention. All percentages, parts and
ratios used herein are by weight unless otherwise specified.
EXAMPLE I
Four sets of 7.6 cm square polycotton (P/C) or cotton (C)
swatches stained with standard soils were washed in an automatic
mini-washer using 2000 ppm of either Composition A, a
commercially available heavy-duty liquid detergent; Composition IB
containing, by weight, 6.2% sodium C13 linear alkylhenzene
sul~onate, 9.4% sodium C14 15 alkyl sulfate, 10.0P~ C12_13 alcohol
polyethoxylate (6.5), 10.0% coconut fatty acid, 5.0% oleic fatty
acid, 15 . 09~ citric acid, O . 39~ diethylenetriame pentamethylene
phosphonic acid, 0.239~ brightener, 1.0% protease enzyme, enough
monoethanolamine to achieve the desired pH and the balance, to
100% water; Composition C, which was B plus 2.7% by weight of
~ C12 alkyl trimethylammonium chloride; or Composition D, which
was B plus 2.796 by weight of C12 16 alkyl dimethyl amine oxide.
The wash pH was about 7 . 3 for Composition A and about 7 . 4 for
E~, C and D. The wash water temperature was 95~F (35C) and
the water hardness was 5 grains/gallon (3:1 Ca+ :I\Ilg~ ). The
swatches were then dried and each set was round robin
comparison graded against its counterparts to determine relativQ
soil removal provided by the detergent compositlons. A grading
scale of -4 to 4 was used, with -4 indicating much less soil
removal, 0 indicating no difference and 4 indicating much more
soil removal. The results for each composition were then
averaged and Composition A was assigned a relative value of 0.
A similar comparision was made except that the wash pH for
Compositions B, C and D was about 9.5.
The results were as follows.
12~ .9
Klash pH 7 . 4 . Wash_pH 9 . s
Comp B C D B C D_ _ _ _ _
Soil Fabric
Bacon grease P/C0.1 1.6 0.9 0.6 0.7 0.5
Synthetic dir- P/C 0.1 1.9 2.6 -0.7 1.0 0.6
ty motor oil
Makeup ( oi I Pl C -0 . 5 1.5 1.6 -2.0 -1. 7 -2 . 6
base)
Spaghetti PIC-1.3 -1.7 -1.8 -0.5 -0.7 -0.1
sauce
Chocolate C 1 . 5 1 . 0 -0 . 2 -0 . 4 -2 . o -2 . o
Grass PIC-1.6 1.8 2.3 3.5 3.6 l~.2
Gravy C 0~9 0.5 1.6 4.0 3.6 3.7
Clay P/C2.2 3.7 3,3 -1,0 0.9 -0.
Clay C 3.2 2.9 3.5 4.1 3.6 3.2
Body Soil P/C0.6 0.4 0.5 0.8 1.3 0.8
The above results dernonstrate that Compositions C and D of
the present invention containing quaternary ammonium and amine
oxide cosurfactants, respectively, provide important advantages
20 on greasy/oil soils and also on grass and clay (on PC) relative to
Composition B at wash pH's of 7.4. However, these advantages
are substantially eliminated at wash pH's of 9.5.
As demonstrated above, the present Tnvention also
encompasses a method for laundering fabrics comprising contacting
25 said fabrics with an aqueous solution having a pH of from about
6 . 0 to about 8 . 5 at 20C . and containing at least about 0 .1% by
welght of the compositions h~rein.
EXAhlPLF H
Liquld detergent compositions of the pressnt invention are as
follows.
Component Wt. %
C13 linear alkylbenzene sulfonic acid 5.8 5.5
Coconutalkyl sulfuric acid 8.8 8.3
C12 alkyl trimethylammonium chloride 1.2
... . ..... . .. ..... .. .. . . .. ..
~Z~S~9
C14 alkyl trimethylammonium bromide - 1.7
C12 13 alcohol polyethoxylate (6.5) 10.0
C1 3 15 alcohol polyethoxylate (7 ) - ~ . 4
Lauric acid 7.5 7.1
Myristic acid 2.5 2.3
Oleic acid 5.0 4.7
Citric acid monohydrate 7.s 5.7
Diethylenetriamine pentamethylene-
phosphonic acid 0.3 0.3
Diethylenetriamine pentaacetic acid 0.3 0.3
Protease enzyme 1.0 1.0
Amylase enzyma 0.3 0.3
Monoethanolamine 12.0
Triethanolamine 6 .7 7 . 5
Sodium hydroxide - 3 . 2
Potzssium hydroxlde - 4.0
1 ,2-Propanediol 5.0 8.5
Ethanol 1 . 0 4 . 7
Sodium formate 1.0 1.0
Sodium toluene sulfonate 5.0
Minors and water Balance to 100
4596 branched
Composition A was prepared by adding the components, with
continuous mixing, In the following order: aicohol polyethoxylate;
25 monoethanolamine; premix of coconutalkyl sulfuric acid paste
(containing propanediol, triethanolamine, coconutalkyl sulfuric
acid, water and minors~ and monoethanolamine-neutralized
alkylbenzene sulfonic acid; premix of toluene sulfonate and water;
citric acid alkyl trimethylammonium chloride; premix of fatty
30 acids; phosphonic acid; acetic acid; premlx of dye, brigh~ener,
formate, ethanol and water; adjust pH to about 8,1 with
monoethanolamine or water; protease enzyme; amylase enzyme; and
perfume. The product obtained was a clear liquid. It exhibited
better detergency performance than a similar product obtained by
35 adding the fatty acids prior to adding the alkyltrimethylammonium
chloride. The product also exhibited better detergency
~Z6~35~9
-- 13 --
performance, phase stability and a less objectionable base odor
than a similar product obtained by adding the monoethanolamine
after the premix of the coconut alkyl sulfuric acid paste and the
neutralized alkylbenzene sulfonic acid.
Composition B was obtained by mixing the components.
Other compositions of the present invention are obtained
when the alkyl trimethyiammonium halides in the above
compositions are replaced with coconutalkyl trimethylammonium
chloride, decyl trimethylammonium methylsulfa~e, Iauryl
di(hydroxyethyl) methylammonium chloride, decyloxypropyl
trimethylammonium chloride, lauryl pentamethylethylenediammonium
chloride, lauryl diethanolamine, coconutalkyl trimethylethylene
diamine, C12 16 alkyl dimethyl amine oxide, or with coconutalkyl
trimethylethylene ditamine oxide).
Other compositions herein are obtained when, in the above
compositions~ the C13 linear alkylbenzene sulfonic acid is replaced
with coconutalkyl sulfurTc acid or C1 4-15 allcyl sulfuric aci
when the coconutalkyl sulfuric acid is replaced with C14 15 alkyl
ethoxy (l avg.) sulfuric acid.
Compositions of the present invention are also obtained when
the lauric/myristic/oleic fatty acid mixture in the above
compositions is replaced with coconut fatty acid or a 3 :1 weight
~ ratio mixture of lauric and myristic acid.
Granular detergents of the present invention can be obtained
by spray-drying the above compositions and admixing
heat-sensitlve materials such as the enzymes.
