JPS63199298A - Stable liquid detergent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to sulfonate surfactants, ethoxylated nonionic surfactants, alkyl or alkenyl succinates and citrate virions, potassium and sodium ions and preferably small amounts of alkanolamines. and a solvent system comprising propylene glycol and water.

The composition is a stable isotropic liquid that provides scion-level cleaning performance and good chlorine bleach compatibility. The composition preferably comprises an alkylamine-anionic surfactant ion pair complex (i.e., an alkylamine-anionic surfactant ion pair complex) that imparts fabric care (i.e., softening and/or static control) benefits through cleaning without significantly compromising cleaning performance. complex). Such compositions are preferably in the form of stable homogeneous suspensions.

BACKGROUND OF THE INVENTION There has been a considerable need for liquid detergents that can provide superior cleaning under a variety of laundry conditions.

Such compositions are generally discrete.
e) Requires a large number of components that tend to separate into phases.

Note that isotropic liquid detergents are preferred for both consistency of performance and aesthetic reasons. The composition should be isotropic as prepared, for example at about 68 tones (20 °C), preferably from more than 90 to 55 tones (at 12,8 °C)
It should remain isotropic during transportation and storage, where temperatures up to and including temperatures are often encountered. Additionally, the composition should be formulated to recover to the isotropic phase after freezing and thawing prior to consumer use.

Liquid detergents often contain large amounts of alkanolamines to enhance performance and product stability. However, alkanolamines readily react with and destroy chlorine bleach.

Therefore, consumers who add chlorine bleach to cleaning solutions containing alkanolamine-based detergents are not obtaining optimal bleaching performance.

Heavy duty liquid detergent compositions that are isotropic liquids that provide high levels of cleaning performance and improved chlorine bleach compatibility are disclosed in U.S. Pat. No. 4,507,219.

The composition contains sulfonate and alcohol ethoxylate sulfate anionic surfactants, ethoxylated nonionic surfactants, any quaternary ammonium, amine or amine oxide surfactants, saturated fatty acids, polycarboxylate builders, sodium and potassium and preferably a small amount of an alkanolamine, and a solvent system containing ethanol, a polyol, and water.

Additionally, many attempts have been made to formulate laundry detergent compositions that simultaneously provide good cleaning and fabric care performance. Attempt to incorporate cationic fabric softeners into anionic surfactant-based detergent compositions using various means to overcome the natural antagonism between anionic and cationic surfactants. Attempts have been made to do so.

For example, U.S. Pat. No. 3,936,537 discloses that organic surfactants, virgoos, and, in particulate form, are combined with poorly water-soluble dispersion inhibitors to inhibit premature dispersion of the cationic surfactants into the cleaning fluid. Detergent compositions containing quaternary ammonium softeners are disclosed. Even in these compositions, some compromise between cleaning and softening effectiveness must be accepted.

Other laundry detergent compositions utilize tertiary amines in combination with anionic surfactants to act as fabric softeners. GB 1,514,276 uses a tertiary amine consisting of two long chain alkyl or alkenyl groups and one short chain alkyl group. Amines have their isoelectric points such that they exist as a dispersion of negatively charged droplets in normal alkaline wash solutions and in a more cationic form at the lower pH of the rinse solution and are therefore more likely to be attached to the fabric. They are useful as fabric softeners in detergent compositions. In particular, the use of such amines in detergent compositions is described in British Patents Nos. 1 and 2.
No. 86.054, British Patent No. 1.514,276
No. 4,375,416 and U.S. Patent No. 4,375,416. It is already stated in the specification of the No.

Another approach to imparting fabric softening capabilities to anionic detergent compositions has been the use of smectite-type clays as described in US Pat. No. 4,062,647. These compositions clean well, but require high clay contents for effective softening. Clays in combination with water-insoluble cationic compounds in conductive metal salts as softening compositions suitable for use with anionic, nonionic, zwitterionic and amphoteric surfactants This is described in British Patent No. 1,483,627.

British Patent No. 1.077.103 and No. 1.0
No. 77.104 discloses amine-anionic surfactant ion pair complexes (10 n-pa) useful as antistatic agents.
lr coBIex). The complex is applied directly to the fabric from the aqueous carrier. There is no suggestion in any of these documents that such complexes could be added to detergent compositions to impart fabric care benefits through cleaning. In fact, such complexes could not be delivered through washing.

Fatty acid-amine ion pair complexes in granular detergents are disclosed in European Patent Application No. 0.133,804. Although these compositions provide fabric conditioning, the alkylamine-anionic surfactant complexes of the present invention provide superior antistatic performance.

It is therefore an object of the present invention to provide a heavy duty liquid detergent composition in stable isotropic form that exhibits good cleaning performance and bleach compatibility.

Another object of the present invention is to clean the composition and its cleaning performance through-the-shu without significantly compromising its cleaning performance.
An object of the present invention is to provide a heavy duty liquid detergent composition in the form of a stable homogeneous suspension containing an alkylamine-surfactant ion pair complex that provides fabric care benefits through-the-wash.

SUMMARY OF THE INVENTION The present invention provides, by weight, (a) about 10% to 30% (acid basis) of sulfonate surfactants containing C10-C,8 alkyl or alkenyl groups; (b) formula R(oC2H4)nOH (formula In the middle, R is Cl0=
018 alkyl group or 08-C12 alkyl phenyl group, where n is on average about 3 to about 9). 10 to about 13); (c) CI2-C14 alkyl or alkenyl succinate builder material 7% to about 20% (acid basis); (d)
(e) from about 0 to about 0.04 moles per 100 g of the composition;
an alkanolamine selected from the group consisting of monoethanolamine, jetanolamine, and triethanolamine; (f) a potassium to sodium molar ratio of from 1.4 to about 5.
0 potassium and sodium ions; (g) about 5% to about 20% propylene glycol; and (h) about 15% to about 45% water, including (a) + (b) about 15% to about 40%. ; (c) + (d) about 10% to about 2
5%; (a) + (b) + (c) + (d) approximately 30%
~about 55%; and (g) + (h) about 30% to about 55
contains 26; the ff1Jl ratio of (a) to (b) is approximately 1
and all of the above components at a concentration of about 10% by weight in water at 20°C with an initial pH of about 6.0 to about 10.
Heavy duty liquid detergent compositions characterized in that they are selected to provide an isotropic liquid (20°C) with a temperature of 0.

Preferred compositions further include an alkylamine-anionic surfactant ion pair complex that provides fabric care benefits, and optional detergent ingredients, and are in the form of a stable homogeneous suspension.

DETAILED DESCRIPTION OF THE INVENTION The liquid detergent of the present invention comprises a sulfonate anionic surfactant, an ethoxylated nonionic surfactant, an alkyl or alkenyl succinate and a citrate builder, potassium and sodium ions and preferably a small amount of an alkanolamine. and a solvent system containing propylene glycol and water.

The composition is formulated to provide a high level of cleaning performance under a variety of laundering conditions. The composition also provides good chlorine bleach compatibility due to the limited amount of alkanolamine. The compositions contain relatively large amounts of active ingredients to enhance product stability, and little or no alkanolamines, so that the types, amounts and proportions of the ingredients are consistent with the isotropic liquid as prepared. and must be carefully (balanced) to give an isotropic liquid at storage temperatures as high as 90°C (32,2°C) and preferably as low as 55°C (12,8°C). Furthermore, the composition preferably contains 55 pieces (12 pieces) after freezing and thawing.
, 8° C.), more preferably by 50° C. (10° C.).

To meet these stability constraints, the composition requires a neutralizing system containing a specific molar ratio of potassium and sodium ions. A higher degree of sodium neutralization than required will result in gelation of the product upon addition of the succinate builder material, while a higher degree of potassium neutralization will result in an unacceptably cloudy product. Also, the pH is
If sensitive stain removal and enzyme stability are not high enough to be compromised, the total amount of organic and inorganic bases should be adjusted to give a product pH high enough to give the desired cleaning solution pH for cleaning performance. You have to choose.

The composition also requires a solvent system containing sufficient amounts of propylene glycol and water to prevent organic phase separation (ie, keep the sparingly soluble surfactant in solution).

Sulfonate Surfactants The detergent compositions of the present invention contain from about 10 to about 30% by weight, preferably about 1% by weight, of a water-soluble anionic sulfonate surfactant containing a Cto''Cte alkyl or alkenyl group.
5 to about 25% by weight (in acid groups). Anionic sulfonate surfactants useful in the present invention are described in U.S. Pat.
No. 285,841 and U.S. Patent No. 3.919,
No. 678.

Preferred sulfonate surfactants include water-soluble salts, especially alkali metal salts, and alkanol ammonium salts (e.g. mono- ethanol ammonium salt or triethanol ammonium salt), e.g., U.S. Pat. No. 2,220.0
No. 99 and No. 2,477.383. Linear straight chain alkylbenzene sulfonates having an average number of carbon atoms in the alkyl group of from about 11 to about 13 are of particular value.

In addition, paraffin sulfonic acid, olefin sulfonic acid,
Alkylglyceryl ether sulfonic acids, esters of α-sulfonated fatty acids having about 1 to 10 carbon atoms in the ester group, 2-acyloxyalkane-1-sulfones having about 2 to 9 carbon atoms in the acyl group Water-soluble salts of acids and β-alkyloxyalkanesulfonic acids having about 1 to 3 carbon atoms in the alkyl group are useful in the present invention.

Mixtures of the abovementioned sulfonates can also be used, especially with 01□-13 linear alkylbenzene sulfonates.

(In the formula, R1 is a C-C alkyl group or
e 08-CI2 alkyl phenyl group, n is about 3 on average
to about 9) (the nonionic surfactant has an HLB (Hydrophilic-Lipophilic Balance)
from about 10 to about 13%], preferably from about 5 to about 12% by weight. These surfactants are described in detail in US Pat. No. 4,285,841 and US Pat. No. 4,284,532.

Condensates of CI2-C14 alcohols with about 3 to about 7 moles of ethylene oxide per mole of alcohol, such as C12-C13 alcohols condensed with about 6.5 moles of ethylene oxide per mole of alcohol, are particularly preferred.

Succinate Builder The detergent compositions of the present invention also contain from about 7 to about 20 ffi amount % of a succinate builder of the general formula %, where R is a C12-C14 alkyl or alkenyl group, preferably from about 7 to about 20 ffi. contains about 10 to about 15% by weight (acid basis).

These succinate builders are preferably used in the form of their water-soluble salts, including sodium, potassium, ammonium and alkanol ammonium salts (e.g., mono-, di-, or triethanolammonium salts). be done.

Specific examples of succinate builders include lauryl succinate, myristyl succinate, 2-dodecenyl succinate (
preferred) and 2-tetradecenyl succinate.

Citrate Builder The composition further comprises from about 1 to about 7% by weight, preferably from about 2 to about 5.5% by weight (acid basis) of a citrate builder material (preferably in the form of an alkali metal salt or alkanol ammonium salt). contains. This material is generally added to the composition as citric acid, but can be added in the form of a fully neutralized salt.

The present neutralized compositions contain from about 0 to about 0.04 moles, preferably from about 0.01 to about 0.035 moles, more preferably from about 0.015 to about 0.03 moles, per 100 g of the composition. It can contain alkano-amines selected from the group consisting of ethanolamine, jetanolamine, triethanolamine, and mixtures thereof. Small amounts of alkanolamines, especially monoethanolamine, are preferred to enhance product stability and cleaning performance. However, the amount of alkanolamine should be minimized for best chlorine bleach compatibility.

Further, the composition comprises potassium ions and sodium ions in a potassium to sodium molar ratio of 1.4 to about 5.0.
, preferably from about 1.5 to about 2.5, and in an amount sufficient to neutralize anionic species and provide the desired product pH.

The solvent system of the solvent-based composition consists of propylene glycol and water.

Propylene glycol (1,2-propanediol is particularly preferred) represents about 5% to about 20% by weight of the composition, preferably about 8% to about 18% by weight of the composition.

The composition also contains from about 15 to about 45% by weight, preferably from about 20 to about 40% by weight.

Additionally, propylene glycol + water is present in about 30 to 30% of the composition.
It represents about 55% by weight, preferably about 35% to about 50% by weight.

The compositions of the present invention are further bound by the following limitations.

All percentages and ratios are calculated on an acid basis when anionic substances are included. The sulfonate plus ethoxylated nonionic surfactant is about 15% to about 40% by weight of the composition.
, preferably represents about 20 to about 35% by weight. Also, the weight ratio of sulfonate surfactant to ethoxylated nonionic surfactant should be from about 1 to about 10, preferably from about 1.5 to about 5.

The succinate builder + citrate builder represents about 10% to about 25% by weight of the composition, preferably about 13% to about 20% by weight of the composition.
Expresses weight %. Additionally, the builder surfactants collectively constitute about 30 to about 55% by weight of the composition, preferably about 40% by weight of the composition.
~50% by weight.

Finally, all of the above components are combined at 68°C (20°C) and preferably below 90°C (32,2°C) and below 55°C (12,2°C).
8°C) to provide an isotropic liquid detergent. The ingredients also have an initial pH of about 6.0 to about 10.0, preferably about 7.0, at a concentration of 10% by weight in water at 68° C. (20° C.).
~9.0.

Optional Ingredients The liquid detergent of the present invention may contain other surfactants and builders,
and other ingredients known for use in detergent compositions, such as enzymes, enzyme stabilizers, polyacids, soil removers, anti-redeposition agents, foam control agents, hydrotropes, opacifiers, antioxidants, Bacterial agents, dyes, delta agents, and brighteners, such as those described in U.S. Pat. No. 4,285,841 and U.S. Pat. No. 4,507,219, can be included. Such optional ingredients generally represent less than about 15%, preferably from about 2 to about 10% by weight of the composition.

Particularly preferred compositions of the invention include from 0.1 to about 10% by weight, preferably from about 0.5% to about 10% by weight of relatively water-insoluble particulates containing an alkylamine-anionic surfactant ion pair complex as a fabric care agent. about 8% by weight, more preferably about 1 to about 6%
% by weight.

The conjugate can be represented by the following formula, where R and R can independently be 018-C20 alkyl or alkenyl groups. Preferred amines used to form these complexes are water insoluble, examples of which include hydrogenated or non-hydrogenated cytalloamines. A
represents an anionic surfactant selected from the group consisting of alkyl sulfonates, aryl sulfonates, alkylaryl sulfonates, and paraffin sulfonates. Preferred anionic surfactants are 01-C2o linear alkylbenzene sulfonates and C12-018 paraffin sulfonates.

Mixtures of these ion pairs can also be used.

In order for these ion-pair complex particles to confer their fabric care benefits, they should have an average particle size of about 10 to about 300 microns,
Preferably about 10 to about 250μ, more preferably about 1O
It has been found that it should have from about 200μ, most preferably from about 10μ to about 150μ. The term "average particle size" means the average particle size of the actual particles of a given substance. Averages are calculated on a weight % basis. The average is determined by conventional analytical techniques, for example by laser light diffraction or microscopy using a scanning electron microscope. Preferably, the amount is greater than 50%, more preferably greater than 60%, most preferably 7% by weight of the particles.
The amount greater than 0% by weight is about 10 to about 300μ, preferably about 10 to about 250μ, more preferably about 10 to about 2
00μ, most preferably within the range of about 10μ to about 150μ.

The starting alkylamine has the formula R1\-H R/ (wherein R and R2 are CI6-C2o alkyl,
or an alkenyl group, preferably C16-C18 alkyl or alkenyl, most preferably 016-018 alkyl. Suitable non-limiting examples of starting amines include hydrogenated citaloamine, non-hydrogenated citaloamine, civalmitylamine, distearylamine, dialchydylamine, palmitylstearylamine, palmitylarachidylamine and stearylaraxylamine. .

Hydrogenated and non-hydrogenated forms of citalohamine are most preferred.

Anionic surfactants (
A) are 01-C20 alkyl sulfonates, aryl sulfonates, C1-C2o alkylaryl sulfonates and 012-018 paraffin sulfonates. These types of anionic surfactants are detailed above.

Linear 01-C2o alkylaryl sulfonates are particularly preferred, and linear 04-013 alkylbenzenesulfonates are even more particularly preferred. Linear 06-CII alkylbenzene sulfonates are most preferred.

Non-limiting examples of ion pair complexes suitable for use in the present invention include citaloamine (hydrogenated or non-hydrogenated) complexed with a linear 01-C20 alkylbenzene sulfonate (LAS), complexed with a C1-C2o LAS; Civalmitylamine complexed with 01-C20L A S, distearylamine complexed with 01-C2oLAS, diarachidylamine complexed with C1-C2oLAS
Valmitylstearylamine complexed with C1-C
2. Palmitylaraxylamine complexed with LAS, C1-C2o Stearylaraxylamine complexed with LAS, C1-C2o alkyl sulfonate (AS
) complexed with citalohamine (hydrogenated or non-hydrogenated), civalmitylamine complexed with 00~C2oAS, distearylgemine complexed with C1~C2oAS, complexed with C1~C20A S Diarachidylamine, valmitylstearylamine complexed with C1-C2oAS, balmitylstearylamine complexed with 01-02oAS, citallowamine complexed with C12-018 paraffin sulfonate (PS) (hydrogenated or non-hydrogenated), 01'2~018P
Cybalmitylamine complexed with S, C12-Cl8
Distearylamine complexed with PS, C12-Cl
Diarachidylamine complexed with 8PS, C12-C
palmitylstearylamine complexed with l8PS,
Examples include palmitylaraxylamine complexed with C1□-Cl8PS, stearylaraxylamine complexed with C1□-Cl8PS, and mixtures of these ion pair complexes.

C1~C20L A S -C1~C20A S1 or C12~Cl8Citaloamine complexed with PS (
More preferred are complexes formed from a combination of hydrogenated or non-hydrogenated hydrogenated hydrogenated hydrogenated or non-hydrogenated hydrogenated hydrogenated hydrogenated or non-hydrogenated hydrogenated or hydrogenated hydrogenated hydrogenated or non-hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated hydrogenated carbonaceous materials. Citaloamine complexed with 01-C2°LAS (hydrogenated or non-hydrogenated)
Even more preferred are complexes produced from. 06~C13
Most preferred are complexes formed from citalohamine (hydrogenated or non-hydrogenated) complexed with LAS.

The amine-surfactant complex of the present invention is formed separately from the remainder of the composition and then preferably added to the detergent component in a manner that ensures that the complex is homogeneously dispersed in the detergent component. The amine and surfactant components have a molar ratio of alkyl amine to surfactant of 1=10 to about 10:1;
Preferably they are combined in a ratio of about 1:1 to about 9:1. This can be accomplished by any of a variety of means, including but not limited to preparing a melt of the anionic surfactant and amine and then adding the molten complex to the remainder of the detergent ingredients under constant agitation. This can be achieved by dispersing.

Alternatively, the molten composite may be allowed to cool, preferably while stirring the molten mixture.

Other methods for preparing ion-pair complexes include dispersing the components in an organic solvent or heating the amine to a liquid state, then adding the molten amine component to a heated, acidified aqueous solution of an anionic surfactant; Examples include methods of extracting ion pair complexes by using a solvent such as chloroform.

The conjugation of an amine with an anionic surfactant creates an entity (
entity) (ion pair).

The desired particle size can be determined, for example, by converting the resulting ion-pair complex into a blender (e.g., an Ostcr® blender) or a large mill (e.g., a Wiley).
R) mill] to the desired particle size range.

Factors such as the type of amine used and the ratio of amine:surfactant components can influence the physical properties of the resulting composite. Complexes that are gelatinous at room temperature are e.g.
After flash freezing by using liquid nitrogen, it can be mechanically crushed to achieve the desired particle size.

The composite is further characterized by a melting point that is generally within the range of about 0<0>C to about 75<0>C. Linear C6 with a molar ratio of 1
A particularly preferred complex comprising a hydrogenated citallow amine complexed with a ~C13 alkylbenzene sulfone surfactant has a melting point of 20<0>C.

It has been found that these fabric care agents, unlike those of the prior art, can be incorporated into the detergent compositions of the present invention with little, if any, adverse effect on cleaning. These detergent compositions provide fabric care benefits across a variety of laundering conditions: machine or hand wash-machine drying, and also machine or hand wash-line drying. Additionally, these fabric care agents can be used in conjunction with a variety of surfactant systems.

Preferably, the compositions of the present invention contain a stabilizer to keep the fabric care agent uniformly dispersed in the liquid detergent. Otherwise, density differences between the insoluble particles and the liquid-based detergent may cause final particle settling or cleaning.

The choice of stabilizer for the present compositions will depend on factors such as the type and amount of solvent components in the composition.

Suitable suspending agents include various clay materials, e.g.
montmorillonite clays, quaternized montmorillonite clays (e.g. Bentone 14 available from NL Industries), polysaccharide gums (e.g. xanthan gum available from Merck & Co., Inc.'s Kelco Division), Any of several long chain acyl derivative materials, or mixtures of such materials, jetanolamide of long chain fatty acids (e.g. PEG3 lauramide), block polymers of ethylene oxide and propylene oxide [e.g. Pluronic F 88, offered by Dot, sodium chloride, ammonium xylene sulfonate, sodium sulfate, and polyvinyl alcohol. Other suspending agents that have been found to be useful include carbon atoms of about 1
Alkanolamides of fatty acids having from 6 to about 22 carbon atoms, preferably from about 16 to about 18 carbon atoms. Preferred alkanolamides are stearic acid monoethanolamide, stearic acid jetanolamide, stearic acid monoisopropanolamide and stearic acid monoethanolamide stearate. Other long chain acyl derivatives include
Long chain esters of long chain alkanolamides (eg stearamide DEA distearate, stearamide MEA stearate) are mentioned.

The most preferred anti-settling agents for use in the present invention are quaternized montmorillonite clays.

This sedimentation control! The detergent composition preferably contains about 0.1% of the detergent composition.
~About 10.0! i amount %, preferably about 0. 5 to about 1,
Present in an amount of 5% by weight.

The compositions also contain polymeric soil release agents, such as cellulosic derivatives such as hydroxyether cellulose-based polymers, copolymer blocks of ethylene terephthalate and polyethylene oxide terephthalate or polypropylene oxide terephthalate, and cationic guar gums. can contain.

Cellulose-based derivatives that function as soil release agents are commercially available, examples include Methocel (MeLItoc).
elR) (Dow) and other cellulose hydroxyethers and polymers (Polymer) JR-12
Examples include cationic cellulose ether derivatives such as 4R, JR-400R1 and JR-30MR (Union Carbide).

See also U.S. Pat. No. 3,928.213.

Other effective stain removers include Jag
uar Plau R) (Stein II Hall),
Cationic guar gum such as Gcndrive 458 R (General Mills).

Preferred cellulosic soil release agents for use in the present invention are selected from the group consisting of methylcellulose, hydroxypropylmethylcellulose, hydroxybutylmethylcellulose, or mixtures thereof. Viscosity 15-75..0
00 centipoise).

A more preferred soil release agent is a random block copolymer of ethylene terephthylate and polyethylene oxide (PEO) terephthylate. More specifically, these polymers have a molar ratio of ethylene terephthalate units to PEO terephthalate units of 25:75.
Approximately 35:65 ethylene terephthalate and PE
(The PEO terephthalate units contain polyethylene oxide having a molecular weight of about 300 to about 2000). The molecular weight of this polymeric soil release agent ranges from about 25,000 to about 55,000. See U.S. Pat. No. 3,959,230. U.S. Pat. No. 3,8 disclosing similar copolymers.
See also No. 93,929. Surprisingly, these polymeric soil release agents have been found to balance the distribution of the fabric care agents of the present invention on a wide variety of synthetic fabrics such as polyester, nylon, polycotton, acrylic, and the like. This more uniform distribution of fabric care agents can result in improved fabric care quality.

Another preferred polymeric stain remover has an average molecular weight of 300 to
a crystalline polyester having repeating units of ethylene terephthalate units containing 10 to 15% by weight of ethylene terephthalate units together with 90 to 80% by weight of polyoxyethylene terephthalate units derived from polyoxyethylene glycol of 5,000; The molar ratio of ethylene terephthalate units to polyoxyethylene terephthalate units in the crystalline polymer compound ranges from 2:1 to 6.
:1. Examples of this polymer include the commercially available materials Zelcon® 5126 (from DuPont) and Mllease® (I
CI).

Particularly preferred polymers according to the invention and their preparation are detailed in European Patent Application No. 185.417.

If utilized, these soil release agents generally account for about 0.05% of the detergent composition. ~5.0% by weight, more preferably about 0.0% by weight of such compositions. It will constitute 2 to about 3.0% by weight.

The above compositions containing ion pair complexes may contain other detergent surfactants, but preferably anionic sulfate and ethoxy sulfate surfactants, such as formula % formula % where R is 010''= less than about 5%, preferably less than about 3%, most preferably less than about 3%, most preferably is about 1
Contains less than % H. Most preferably, the composition is substantially free of such sulfate surfactants to inhibit deposition of the fabric care active compounds.

The composition can contain up to about 2% by weight ethanol as an additional solubilizer. However, the compositions require ethanol for phase stability and preferably contain little or no ethanol for compatibility with the fabric care active compound that can be solubilized by ethanol (e.g., about less than 1% by weight). The composition is preferably substantially free of ethanol.

The following examples illustrate compositions of the invention.

All parts, percentages and ratios used herein are by weight unless otherwise specified.

Example I The following composition is prepared by adding the ingredients to a mixing vessel in the order indicated under continuous mixing.

component
Certification%1 water
100.0G1.2-propanediol 100.00 Sodium hydroxide
50.00 Sodium formate
ao, o.

Protease Enzyme (2,5 AU/g) Amylase Enzyme (155 AMU/Marg) Bentone 14 Clay 100.00
DTA/LAS complex
100.00 dye
1.00 yen fee
100.00 (total finished product) The balance to 1100% is water unless otherwise specified.

Poly(Tele 3111.711) ethoxylated with about 30 moles of ethylene oxide 15 to 18 ethylene oxide at each hydrogen site on each nitrogen rich from a manufacturer with more than 21
14.49' 14.
4915.56 0.71
G, 29246.62
11.21 11.212
2.00 1.00
0.108B, 67 1
．． 67 0.50894, 17
1? , 92
17.20114.47 5.2
0 0.2039.8+1
1.81 1.4
5 (1993, 88), (90,
61) 21.10 0.98(1
,7) 21.34 0.97
0.9712.76
0.58e, eo o, g.

15.84 0.72
0.72118.82
5.31 5.316.60
0.10
G, 015.0B 0.23
0.23 (2200,00)
(100,00) Coal polyethoxylate (6,5)★38.46% is also included.

The (average) ethoxylated tetraethylene pentimene phthalate propylene glycol ester) composition is
H about 14 and a temperature of about 37.8°C (the anhydride is
(used because they are easier to handle and give a lighter colored product than the corresponding acids). Increase the temperature to about 71.1°C under moderate stirring. High temperature, high pH and substantial water availability are set to complicate hydrolysis and neutralization of the anhydride. This is accomplished before the addition of monoethanolamine in order to avoid reaction of monoethanolamine with anhydride and the formation of the corresponding amide, which is not as builder. Then Benton 1
4. Cool the composition to about 26.7° C. before adding the clay.

The DTA/LAS ion pair complex was prepared using hydrogenated citaloamine [Shelex Chemical Co., Ltd., Dublin, Ohio].
Adgen (AdogcnR) 2 from Corporation
40; this can be atmospherically distilled to reduce the monotallowamine content from about 5% by weight to less than about 1% by weight, e.g., 0.9% by weight to improve particle integrity and physical stability. ] in a weight ratio of C11,4 linear alkylbenzene sulfonic acid and DTA:LAS 90:10.
Prepared by mixing at 1.1-76.7°C to produce a uniform syrupy liquid.

The composite at a temperature of 65.6-76.7°C is slowly added to the composition at 26.7°C under high shear mixing conditions. This disperses the complex into microdroplets.

The microdroplets were made of Malvern R 26
Freeze as particles having an average size of about 40-50μ and a median diameter of about 20μ as measured using a 00 particle size analyzer. Additionally, about 69% of the particles are size 9
~160μ.

The base product is an isotropic liquid that is stable at 20°C and has an initial pH of about 8.2 at a concentration of 10% by weight in water at 20°C. The finished product is a homogeneous dispersion that is stable at 20°C and has an initial pH of about 8.6 at a concentration of 1% by weight of 10M in water at 20°C.

Other compositions of the invention include when the molar ratio of potassium to sodium is adjusted to about 2.85; when the amounts of C12 alkenylsuccinic anhydride and citric acid are adjusted to 14% and 2%, respectively; and obtained when adjusting the amounts of CI2-13 alcohol polyethoxylate and 1,2-propanediol to 5% and 18.5%, respectively.

Other compositions of the invention combine all or part of the DTA/LAS ion pair complex with c6, c8.01G or C13.
obtained when replacing an equivalent amount of cytalloamine (hydrogenated or non-hydrogenated) complexed with a linear alkylbenzene sulfonic acid.

Claims (1)

Claims: 1. from about 10% to about 3% by weight of (a) a sulfonate surfactant containing a C_1_0 to C_1_6 alkyl or alkenyl group;
0% (acid basis); (b) Formula R^1(OC_2H_4)_nOH (in the formula, R
_1 is C_1_0 to C_1_6 alkyl group or C_8
~C_1_2 alkylphenyl group, n is about 3 on average
~1% of the ethoxylated nonionic surfactant (~9)
~about 15% (the above nonionic surfactant has an HLB of about 10~
(c) about 7% to about 20% (acid basis) of a C_1_2-C_1_4 alkyl or alkenyl succinate builder material (d) about 1% to about 7% (acid basis) of a citrate builder material; (e) from about 0 to about 0.04 moles per 100 g of the composition;
an alkanolamine selected from the group consisting of monoethanolamine, diethanolamine, and triethanolamine; (f) a potassium to sodium molar ratio of about 1.4 to about 5.
0 potassium and sodium ions; (g) about 5% to about 20% propylene glycol; and (h) about 15% to about 45% water, including (a) + (b) about 15% to about 40%. ; (c) + (d) about 10% to about 25%
; (a) + (b) + (c) + (d) about 30% to about 55%
and (g) + (h) from about 30% to about 55%;
The weight ratio of (a) to (b) is from about 1 to about 10; all of the above components are present at an initial concentration of 10% by weight in water at 20°C.
Isotropic liquid with H about 6.0 to about 10.0 (20°C)
A heavy duty liquid detergent composition characterized in that it is selected to provide. 2. The sulfonate surfactant is C_1_1 to C_1_
is a trilinear alkylbenzene sulfonate, and in the ethoxylated nonionic surfactant, R is C_1_
2 to C_1_4 alkyl group, where n is about 3 to about 7 on average
The composition according to claim 1, which is 3. The composition of claim 2, comprising about 15% to about 25% (acid basis) sulfonate surfactant, and about 5% to about 12% ethoxylated nonionic surfactant. 4. Succinate builder about 10% to about 15% (acid basis), and cytrate builder about 2% to about 5.5% (acid basis)
4. A composition according to claim 3, comprising: an acid standard). 5. The composition of claim 4, wherein the molar ratio of potassium to sodium is from about 1.5 to about 2.5. 6. The composition of claim 5 comprising about 8% to about 18% 6,1,2-propanediol. 7. pH about 7 to about 9 at a concentration of 10% by weight in water at 20°C
．． 7. The composition of claim 6, having a 8. The composition of claim 1, wherein the succinate builder substance is added to the composition in its anhydrous form. 9. The composition of claim 8, wherein the anhydride is substantially hydrolyzed and neutralized before addition of the alkanolamine. 10. About 0.1% to about 10% of water-insoluble particles having an average diameter of about 10 to about 300μ C_
2_0 can be an alkyl or alkenyl group,
A is an anionic surfactant selected from the group consisting of alkyl sulfonates, arylsulfonates, alkylaryl sulfonates and paraffin sulfonates) and such ion pair conjugates. A composition according to claim 1, further comprising a mixture of the following. 11. The particles have an average diameter of about 10 to about 150μ;
A composition according to claim 10. 12. The composition of claim 10, wherein the particles comprise an ion-pair conjugate of a hydrogenated ditallow amine and a C_6-C_1_3 linear alkylbenzene sulfonate. 13. Claim 1 further comprising about 0.5% to about 1.5% quaternized montmorillonite clay.
The composition according to item 0. 14. Alkyl sulfates of the formula RO(C_2H_4O)_mSO_3M, where R is a C_1_0-C_1_6 alkyl group or a hydroxyalkyl group, m is 0 or up to an average of about 4, and M is a compatible cation. and an alkyl ethoxy sulfate surfactant. 15. The composition according to claim 10, which is substantially free of ethanol. 16. About 0.5% to about 8% of water-insoluble particles having an average diameter of about 10 to about 300 μ [the above particles have the formula ▲ mathematical formula, chemical formula,
There are tables, etc. ▼ (In the formula, R_1 and R_2 are independently C_1_6 to C_
2_0 can be an alkyl or alkenyl group,
A is an anionic surfactant selected from the group consisting of alkylsulfonates, arylsulfonates, alkylarylsulfonates and paraffin sulfonates. 10. The composition according to claim 9, further comprising: 17. The composition of claim 16, wherein the particles have an average diameter of about 10 to about 150 microns and include an ion pair complex of hydrogenated ditallow amine and C_6 to C_1_3 linear alkylbenzene sulfonate. 18. Hydrogenated ditallowamine and C_1_1_. 18. The composition of claim 17, comprising an ion pair complex with a _4 linear alkylbenzene sulfonate. 19. Claim 1 further comprising about 0.5% to about 1.5% quaternized montmorillonite clay.
Composition according to item 7. 20. The composition of claim 17, wherein the ditallowamine contains less than about 1% monotallowamine.