AU5503473A - Low-foaming detergent composition - Google Patents

Description

4 2.00!r~ III~ .4U

TESTCHART MICROCOPYRESOLUTION OF STANDARS 963 BUREAU NATIONAL

K 13

I

COMMONWEALTH OF AUSTI ALIA AETOFC Patents Act 1952.69 PAnTOIC I CONVENTION APPLICATION FOR A PATENT

XL'We COLGATE-PALMOLIVE COMPANY1, a corporation organized and exisinig urii'-the laws of the State of Delaware, of eG 300 Park Avenue, New York, New York 10022, United States of America.

e*

a hereby apply for the grant of a Patent for an invention entitled a. a a

"Low-Foaming Detergent Composition"

a. a

which is described in the accompanying complete sM@-~-pecification.

o *a a 0

This application is made under the provisions of Part XVI of the Patents Act 1952-69 and is based on an application for a patent or i;imilar protection made

in United States of America on 6th June, 1972 (No. 260,320) iv

W~Our address for service is: F. B. Rice Co., 109 Pitt Street, Sydney, N.S.W.

Dated this 30th day of April, 1973

COlGATE-PALMOLIVE COMPANY~

Patent Attorney

F. B. RICE CO., To: The Commissioner of Patents, Patent Attorneys, Commonwealth of Australia. Sydney.

260,320

COMMONWEALTH OF AUSIRALIA Patents Act I932-ig 69 DECLARATrION IN SUPPORT OF

A CONVENTION APPLICATION FOR A PATENT In support of the Cnmade by

Convntio Api a

for a patent~ for an invention entitled "LOW-FOAlMENG DETERG~ENT COMPOSITION" Sidney S. Coggan of 8 Wight Place, Tenafly, New Jersey, United States I/Xe of America, Assistant Secretary of' and on behalf of the applicant company, do solemnnly and sincerely declare as follows:

1 am authorised b:y COLG~ATE-PAIMOLIVE COMPANY

the applicant foraen n-o th make this declaration CB.

C. on its behalf. B The basic application as defined by Section lzof the Act ma C United States of 12were B*C C made in America on June 6, 1972 lb dlk

byJack Thomas Inamorato Robert Tweedy Hunter 113 Duncan Hill 4*016 Baywood Drive South East Westfield, New Jersey, Grand Rapiids, Michigan C C C Robert Ervin Dickson Sunset Road Belle Mead, New Jersey

Swho are the actual inventors of the invention referred to in the basic application and the facts upon which COWGATE-PALMOLIVE COMPANY ~'YT is entitl&J to make the application are as follows: COLGATE-PALMOLIVE COMPANY is the assignee of the, invention from the said inventors.

The basic application referred to in paragraph 2 of this Declaration is/Me the first applicatiian made in a Convention country in respect of the invention the s;ibject of the application.

Declared at this day of I 19'

.1Y

F. B. RICE CO., To: The Commissioner of Pates Patent Attorneys, Commonwealth of Austra Sydney. This Form is suitable for any type of Patet Application. No legalisation required. CECVRAI. *CCBC-ttes.tw.

Form

COMMONWEALTH OF AUSTRALIA

Patents Act 1952-62

CO0M PL E TE SP E CI F IC ATIO N

Class !at. Oas

Application Number 55, -o3e-7 3 Lodged 6- 73

k' CF, S3 C (ID -31 f/ 4/2; :*Complete Specification Lodged Aee~ed 4--7qP:56D S-ec :Published +-s*A

:Priorit y 6th Juns, 1972

Related Art 4e- 0/O~ .P 6' Fr7 16 .23 oo17

Name of Applicant COLGATE-PALMOLIVE CONPAWr *0

Address of Applicant 300 Park Avenue, New Yor)k New York, 10022, United States of America.

Actual Inventors: Jack Thomas Inamorato, Robert Tweedy Hunter# Robert E. Dickson

Address for Service F. B. RICE CO., Patent Attorneys, 1u.'y ni-I I 109 Pitt Street, F 'EC

SYDNEY. Complete Specification for the invention entitled: "fLow-Foaming Detergent composition"

The following statement is a full description of -'his invention including the best method of performing it known to us

The present invention relates to new synthetic detergent compositions and more particularly to corr.ositions based on anionic detergentJ, nonionic detergents, and mixtures thereof having improved properties. Aqueous solutions of these

detergent compositions are characterized by a very low degree

of foam formation under conditions of vigorous and continuous agitation.

Although the formation of abundant foam has been i t) considered a desirable property of a washing agent as an

indication of lasting detergent power, it is also recognized .i that copious suds formation is not necessarily a measure of detergent effectiveness. In fact, with certain household

and commercial applicances and apparatus, production of 15 copious suds is a handicap rather than an advantage. Composi- tions of the present invention not only do not foam excessively,

but they also have superior detersive properties.

Urea and certain lower alkyl derivatives thereof

have heretofore been used with certain surface-active agents chiefly in large proportions as cheap and innocuous fillers

and as solubilizing agents. It has now been discovered that

the presence of a 1, 1 dialkyl urea in detergent compositions

consisting essentially of anionic sulfated and sulfonated and

nonionic surfactants is effective to achieve a significant

enhancement in surface-active properties and a reduction in

foaming. More particularly, the improved detergent compositions consist essentially of water-soluble anionic surfactants,

-la- nonionic surfactants, alkaline builder salts, and a minor proportion of a 1, 1-dialkyl urea effective to suppress the formation of foam in the detergent compositions.

The new detergent compositions generate less foam

than current available products, and prevent over-foaming in soft water areas. In addition, the new detergent compositions

permit the consumer to use higher levels of detergent before

over-foaming occurs. Illustrative of the foam suppressing additives of the o

10 present invention are the higher dialkyl substituted urea compounds wherein the alkyl substituents have 8 to 18 carbon

.0 atoms. Suitable examples of such compounds are 1, 1 di (2 ethyl

hexyl) urea; 1, 1 dihydrogenated tallow urea; and 1, 1 di- coco urea.

i.15 These 1, 1 dialkyl ureas may be prepared by reacting

secondary amines with urea.

The novel compositions of the present invention contain as the active ingredient the anionic sulfated and

sulfonated detergents, and nonionic detergents including

suitable mixtures thereof. Included therein are the aliphatic

sulfated or sulfonated compounds, such ao the aliphatic acyl- containing compounds wherein the acyl radical has between 8

and 22 carbon atoms, and, more particularly, the aliphatic

carboxylic ester type, containing at least about 10 and

preferably between 12 and 26 carbon atoms to the molecule.

Among the aliphatic detersive compounds, it is preferred to

use the sulfated aliphatic compounds having between 12 and 22

carbon atoms. As suitable examples of aliphatic detergents may be found the sulfuric acid esters of polyhydric alcohols incompletely esterified with higher fatty acids, coconut oil monoglyceride monosulfate, tallow-di-glyceride monosulfate; the long chain pure or mixed higher alkylsulfates, e.g. lauryl sulfate, cetyl sulfate, higher fatty alcohol sulfates derived from coconut oil; the hydroxy sulfonated higher fatty acid esters, higher fatty acid esters of 2, 3 dihydroxy propane sulfonic acid; the higher fatty acid esters of low molecular

Sweight alkylol sulfonic acids, oleic ester of isethionic

0..10 acid; the higher fatty acid ethanolamide sulfates; the higher fatty acid amides of amino alkyl sulfonic acids, lauric amide of taurine, and the like. It is a feature of this invention that the effects are particilarly enhanced with the alkyl aryl sulfonate deter-

gents. These aromatic sulfonate detergents are also known in the art. They may be mononuclear or polynuclear in structure.

More particularly, the aromatic nucleus may be derived from benzene, toluene, xylene, phenol, cresols, napthalene, etc. S The alkyl substituent on the aromatic nucleus may vary

widely, as long as the desired detergent power of the active

ingredient is preserved. More specific examples of suitable alkyl aromatic sulfonate detergents are the higher alkyl aromatic sulfonates.

The higher alkyl substituent may be branched or straight-chain

in structure; it comprises such groups as octyl, decyl, dodecyl, tridecyl, keryl, pentadecyl, and hexadecyl, mixed long-chain alkyls derived from long-chain fatty materials,

cracked paraffin wax olefins, polymers of mono olefins, etc.

Preferred examples of this class are the higher alkyl mono-

nuclear aryl sulfonates wherein the alkyl group has about 8

to about 22, and preferably between 12 and 18 carbon atoms.

More particularly, it is preferred to use the higher alkyl

benzene sulfonates wherein the higher alkyl group averages between 12 and 16 carbon atoms. For example, propylene may

be polymerized to the tetramer and condensed with benzene

in the presence of a Friedel-Crafts catalyst to yield

essentially the dodecyl benzene derivative which is suitable

for sulfonation to the desired sulfonate compounds. These various anionic detergents are generally used

in the form of their water-soluble salts, such as the alkali

metal, alkaline earth metal, ammonium, amine, and alkylolamine

salts. While the sodium, potassium, ammonium, and alkylolamine

mono-, di-, and tri-ethanolamine) salts are preferred ordinarily, other salts such as the lithium, calcium, and

magnesium salts may be used if desired. For general use, it is ordinarily preferred to use the sodium and potassium

salts. For certain specialized uses, it may be preferred to

select the ammonium and alkylolamine salts in view of their

generally greater solubility in aqueous solution. The con-

centration of these water soluble salts (including suitable

mixtures thereof) in the detergent compositions of the present

invention is generally at least 5% by weight of total solids,

and preferably from about 5-50%. With built compositions,

particularly in particulate form, an active ingredient content

of 5-50%, and preferably about 10-40%, yields highly satis-

factory results. Compositions with very high concentrations of these active ingredients are prepared for specialized use ganerally. Thus in liquid detergent compositions, any suitable concentrations may be employed, from about 9 to about of the weight of the total liquid detergent composition.

Nonionic surfactants are also suitable in the practice of the present invention. One class of compounds comprises

surfactants having alkylene oxide groups which are hydrophilic

in nature combined with an organic hydrophobic group. The 0 preferred class includes the ethoxylation products of hydro-

10 phobic hydroxyl compounds such as long chain aliphatic compounds S. and alkylaromatic compounds. Among such materials are the poly .(ethylene oxide) condensates of aliphatic alcohols having, for example, 8 to 18 carbon atoms, such as lauryl or tallow alcohols, combined with, for example, 3-30 moles of ethylene oxide for

each mole of the long chain alcohol. The corresponding alkyl mercaptans, when condensed with ethylene oxide, are also

admirably suitable in the compositions of the present invention. Other nonionic detergents are the polyethylene oxide condensates of alkyl phenols, having, for example, an alkyl

group of about 6 to 12 carbon atoms nonyl phenol) in which there are a plurality of ethylene oxide units

up to 30) per mole of alkyl phenol. Another class of non- ionic detergents includes the polyethylene oxide condensates

of higher glycols, which may be made, for example, by

condensing ethylene oxide with a polypropylene glycol made

by reacting propylene oxide and propylene glycol, said poly-

propylene glycol having a molecular weight of 1500-1800. Again, the nonionic detergent may be made by condensing ethylene oxide with a water-insoluble reaction product of molecular weight about 3,000) of a diamine ethylene diamine) and excess propylene oxide, to incorporate about 40-80% of ethylene oxide in the final condensation product. Ethoxy- lation products of compounds containing mercapto, rather than hydroxyl, groups may also be used.

Other suitable nonionic compounds are the polyoxy- alkylene esters of the organic acids such as the higher fatty acids, the rosin acids, tall oil acids, acids from petroleum e. :o0 oxidation products, etc. These esters will usually contain

from about 10 to 22 carbon atoms in the acid moiety and from about 12 to about 30 moles of ethylene oxide or its equivalent.

Still other nonionic surfactants are the alkylene

oxide condensates with higher fatty acid amides. The fatty

15 acid group will generally contain from about 8 to 22 carbon atoms, and this will be condensed with about 10 to about

moles of ethylene oxide as the preferred illustration. The corresponding carboxamides and sulfonamides may also be used

as substantial equivalents.

In liquid detergents, the active ingredient (surfactant)

should preferably be in the form of a highly water soluble

salt, ammonium, mono-, di-, and triethanolamine salts.

The liquid detergent composition may be prepared in dilute or

concentrated aqueous solution with or without the presence

of a lower molecular weight aliphatic alcohol such as ethyl

alcohol, propylene glycol, etc. The amount of nonionic surfactant that can be

present in compositions of the present invention ranges from about 2% to 40%, preferably from about 5% to about 15%, by weight, based on the final composition. The presence of conventional amounts of inorganic salt detergent builders, such as various water-soluble inorganic polyphosphates, sulfates, silicates, borates, and carbonates, does not adversely affect the foaming and detergent properties of the present domposition. These builders, the total amount of which may range by weight based on finished composition, from about 40% to about 90%, but more usually between

.0 to about 85%, contribute their different specific effect toward a more satisfactory washing treatment of soiled clothing, dishes, etc. The most common alkaline builder salts are the

phosphates which inhibit the precipitation of alkaline earth

15 materials, such as calcium and magnesium compounds, in aqueous

Smedia. The alkali netal salts, and, most particularly, the

potassium salts, of the chain polyphosphates are usually

employed. Examples of such compounds include: potassium

tripolyphosphate, potassium acid tripolyphosphate, tetra-

potassium pyrophosphate, potassium hexametaphosphate,

potassium tetraphosphate, and the like. The phosphates

are either crystalline substances or glassy, amorphous

products. Any water-soluble glassy polyphosphate with mole

ratios of alkali oxide to phosphorous oxide of between about 5:3 and about 1:1, and an average chain length of

from 3 to several thousands, is suitable for use as a

builder in the compositions of the present invention. These phosphates may be the sole builder salts or may be used in

combination with any of the aforementioned builder salts.

Where a phosphate free detergent composition is desired, the principal builder salts used are the soluble alkali-metal

silicates. Suitable silicates are those having an alkali oxide to silica ratio within a range of about 1:1 to about 1:4, and

preferably from about 1:2 to about 1:3. Other builder salts which may be combined with the silicates in phosphate-free compositions include water-soluble alkali metal salts of

0009 borates, carbonates, and sulfates.

Other functional materials which optionally may be

0 present in the compositions of the present invention include soil suspending agents, brighteners, thickening agents, coloring *e 9

materials, and perfumes. These additives are generally present in amounts of less than 5% of the total detergent composition. The soil suspending agents are generally water-soluble

15 or hydrophilic polymeric substances such as the lower alkyl cellulose esters, methyl cellulose and ethyl cellulose;

hydroxyalkyl cellulose esters, hydroxyethyl cellulose, cellulose ethane sulfonic acid, cellulose glycollic acid; carboxy lower alkyl cellulose compounds, sodium carboxy

methyl cellulose, potassium carboxy methyl cellulose, sodium

carboxy propyl cellulose, and the like; water-soluble or

dispersible synthetic polymeric materials which may be homo-

polymers, copolymers, graft copolymers, terpolymers, inter-

polymers, and the like and are illustrated by polyvinyl pyrrolidone,

polyvinyl alcohol, hydrolyzed polyvinyl acetate, polyacrylic

acid, polyacrylatide; maleic anhydride copolymers with alkyl

vinyl esters, methyl vinyl ester; natural products such

as starch, and jhe like.

The brighteners that can be used include various well

known types of the more commonly used products. Such types,

which are by no means limiting, include the coumarin types,

the triazolyl stilbene types, the stilbene cyanuric types, the

acylamino stilbene types, and the like. The amount of the substitued urea foam suppressing

additives is generally minor in proportion to the total detergent

composition. Particularly effective results have been achieved wherein the 1, 1 dialkyl urea is present in amounts between

1/2% and 15% of the total detergent composition, although it is

Spreferred generally to use from about 1% to about 5% additive. SThe optimum amount of additive and its ratio to the active

1 *ingredients will vary according to the specific materials, the

contemplated field of application, and manner of use. The additives may be incorporated with the active

ingredient at any point during the manufacturing process at which subsequent operations will not adversely modify the

properties of the detergent compositions. A variety of procedures

which have proved to be convenient, economical, and productive

of best results are: the additives may be added to a hot aqueous

slurry of about 40-50% solids concentration comprising the

active ingredient with vigorous stirring to form a smooth,

uniform, and homogeneous paste; the additives may be dissolved in a suitable solvent and added to the slurry of the active ingredient; a mixture or emulsion of the additives in water

with a minor proportion of the active ingredient may be in-

corporated into the slurry; or the additives may be incorporated

in the detergent composition by a post treatment of spray-dried

detergent particles, etc.

Thereafter, these compositions may be prepared in

the form of solutions, pastes, or as dry or partially hydrated solid products, preferably in a finely divided condition. It is preferred to prepare the products in particulate form. Accordingly, the slurry of the detergent composition may be

subjected to any suitable drying operations and converted to

particle form. The mixture may thus be subjected to conventional

spray-drying, roll-drying, or drum-drying operations utilizing S temperatures above about 212 0 F to obtain homogeneous detersive particles.

In the foam height tests tabulated infra, detergent compositions A, B, and C were prepared by mixing the synthetic

control detergent and a 1, 1 dialkyl urea in the specified amounts. To determine the degree of foam inhibition, foam

heights were measured under simulated household-use conditions in a tumbler-type washing machine test. The washing machine

o test was conducted in the following manner: To a tumbler-type washing machine was charged 26

liters of water (150 ppm hardness) at 120OF containing 0.15% by

weight of the test formulation. Then three pounds of clean terry towels were added. The foam height, in inches, as viewed through the door window, is measured periodically over a

minute wash cycle.

The results of the test are tabulated below. In the tables, identification of the 1, 1 dialkyl urea used as foam suppressors is as follows:

A is 1, 1 di (2 ethyl hexyl) urea

B is 1, 1 di coco urea

C is 1, lidi hydrogenated tallow urea

Table I Foam Suppressant Effect 'sof Anionic- Dialkyl Uiea Systems Time Control 1% A 1% B 1% C 0 3 3/A 1/2 2 1 1/2 1 1/2 2 1/2 2 1l/2 1 3/ 2 1/2 6 1/2 1 3/4 8 1 1/4 1 1/2 10 1 1/2 14 7 1/2 10 1 1/ 1 1/2 4 1/2 10 1 1/2 13/4 5 1/2 .:00Table II -Foam Suppressant Effects of Nonionic- Dialkyl Urea Systems Time Control 1% A 1% B 1% C 0 2 1/2 1/2 1/2 1/2 1 1L/2 1/2 1/2 1/2 22 1/2 1/2 1/2 6 3/4 1/2 1/2 6 1/2 3/4 1/2 1/2 5 8 3/4 1/2 1/2 7 1/2 10 13/ 1 10 13411/ The anionic detergent control composition of Table I, con~sists of the following: Tridecyl benzene sulfonate *Neodol 4511* 2 CE Soap** 2 Sodium tripolyphosphate Sodium silicate Water Sodium carboxymethyl cellulose Sodium sulfate 23 *Ac, 4 -Cl 5 linear primary alcohol with 11 ethoxygroups, made by Shell Chemical Co. mixture of coco and tallow soaps.

The nonionic detergent control composition of Table II, consists of the following:

Neodol 4511

Sodium tripolyphosphate Sodium silicate Water

Pblyvinyl alcohol 0.2

Sodium carboxy methyl cellulose Sb Optical brighteners 0.3 Sodium sulfate 27 Table III shows 'a comparison of the anionic detergent

of Table I containing the foam suppressors of the instant invention with a commercial low foaming detergent. The washing e

i'.'If machine test was conducted as above. In this table, A is the

anionic detergent composition containing 1% 1, 1 di (2 ethyl hexyl) urea, B is the anionic detergent composition containing

1% 1, 1 di coco urea, and C is the anionic detergent composition containing 1% 1, 1 di hydrogenated tallow urea. D is the commercial low foaming detergent.

Table III Foam Suppressant Effects of 1, 1' dialkyl Ureas Compared to Commercial Low-Foaming Detergent

Time (min.) Foam Heights (inches)

A B C D 0 3/4 1/2 1/2 3 11 1/2 1/2 4 1/2 2 1 3/4 1/2 6 3 1 3/4 1/2 6 1/2 4 1 1/4 1 1/2 7 1/2 5 1 1/2 1 1/2 7 1/2 1 1/2 1 1/2 1 11/2 11/2 1 1/2

The results of this foam test indicate that detergent

compositions of the present invention are much lower foamers

than the current commercially available low foaming detergent.

The following examples illustrate compositions of the present invention:

Example I

A detergent composition is prepared by forming about a solids slurry containing on a solids basis about 10% sodium

tridecylbenzene sulfonate, about 4% Neodol 4511, about sodium tripolyphosphate, about 1% 1, 1 di (2 ethyl hexyl) urea,

about 7.5% sodium silicate, 0.5% sodium carboxymethyl cellulose, and about 32% sodium sulfate. This slurry is agitated at about 140oF in a conventional soap crutcher to form a homogeneous e

mixture. The slurry is submitted to spray drying with heated air at a temperature of about 3500F with a resultant moisture

*0 loss of about 40%. The resulting composition is recovered in the form of beads, and possesses a high degree of detersive

properties and a low degree of foaming properties in both

hard and soft water.

Example II Using the procedure of Example I, an improved phosphate-free detergent composition is prepared from the following components:

Sodium dodecyl benzene sulfonate

Sodium silicate

Sodium sulfate 22 1, 1 di hydrogenated tallow urea 2 Sodium carboxy methyl cellulose 1

Example III An improved liquid detergent composition is prepared

from the following components:

Neodol 4511 Potassium tetrapyrophosphate

Sodium silicate

Optical brighteners 0.2

Sodium carboxy methyl cellulose 0.3 Resin stabilizer (Ethylene-maleic anhydride polymer) 1, 1 di coco urea

Water Q.S. 100 The improved-detergent formulations of this invention

S195 are suitable for use in dilute aqueous solutions in a variety of washing appliances, such as rotary drum or tumbler-type

washers, top-loading agitator washers, bottle washers, etc. *0 When so employed, little or no foam is formed, with no adverse

effect on the detergency characteristics, in operating at temperatures from about 65 to 1400F, as commonly used in

washing practice. This suppression of suds in accordance with the invention permits employing a larger concentration

of the active detergent in the preparation of washing solutions,

as compared with the concentrations heretofore considered

permissible maxima for tumbler-washer operations. Furthermore,

the tendency to froth upon rinsing is substantially obviated.

The low foaming detergent formulations of the

present invention can be used in tumbler-type washers, as well as in any other washing equipment which utilizes conven- tional high foaming organic detergent materials. In fact, these formulations can be used to reduce foaming in a number of solutions and emulsions which, upon agitation, produce unduly high suds levels; causing spillage and pumping difficulties, and interfering with a satisfactory filling of containers.

o

a

a

o a. *0

a

0A

Claims (9)

The claims defining the invention are as followss-

1. A low-foaming detergent composition comprising:

a synthetic organic detergent selected from the group consisting of anionic and nonionic detergents and

mixtures thereof;

inorganic water-soluble alkaline builder salts; and

a foam suppressing agent represented by ?;he formula 0 R 1 H R N-C-NH2 R a

wherein R is an alkyl group of between 8 and 18 carbon stoms.

2. The detergent composition of Claim 1 wherein the synthetic organic detergent is a nonionic detergent.

3. The detergent composition of Claim 1 wherein the foam suppressing agent is 1, 1 di (2 ethyl hexyl) urea.

4. The detergent composition of Claim 1 wherein the foam suppressing agent is 1, 1 di coco urea. o°

5. The detergent composition of Claim 1 wherein the S foam suppressing agent is 1, 1 di hydrogenated tallow urea.

6. A low-foaming detergent composition -omprising:

a synthetic organic detergent selected from the group consisting of anionic and nonionic detergents and mixtures thereof; inorganic water-soluble alkaline builder salts

selected from the group consisting of water-soluble alkali

metal borates, carbonates, silicates, sulfates, and mixtures

thereof; and a foam suppressing agent represented by the

N-C-NH2

wherein R is an alkyl group of between 8 and 18 carbon atoms. S

7. The detergent compositio of Claim 6 wherein the

foam suppressing agent is 1, 1 di (2 ethyl hexyl) urea.

8. The detergent composition of Claim 6 wherein :the foam suppressing agent is 1 di coco urea.

79. The detergent composition of Claim 6 wherein the foam suppressing agent is1, 1 di hydrogenated tallow urea. The detergent composition of Claim 6 wherein

the inorganic alkaline builder is sodium silicate.

A

11. A low-foaming detergent composition comprising:

from about 10 to about 40% of a synthetic

organic detergent selected from the group consisting of anionic

and nonionic detergents and mixtures thereof;

from about 50 to about 90% of inorganic

water-soluble alkaline builder salts; and

from about 1/2% to about 10% of a foam suppressing agent represented by the formula: 0 R N-C-NH2 *.R

wherein R is an alkyl group of between 8 and 18 carbon atoms. ego* 12. The detergent composition of Claim 11 wherein

the inorganic water-soluble alkaline builder salt is a water- soluble potassium polyphosphate. S. 13. The detergent composition of Claim 12 wherein

the water-soluble potassium polyphosphate is potassium

tripolyphosphate. 14. The detergent composition of Claim 11 wherein

the foam suppressing agent is 1, 1 di (2 ethyl hexyl) urea.

The detergent composition of Claim 11 wherein the foam suppressing agent is 1, 1 di coco urea.

16. The detergent composition of Claim 11 wherein

the foam suppressing agent is 1, 1 di hydrogenated tallow urea.

17. The detergent composition of Claim 11 wherein the inorganic, water-soluble alkaline builder is a mixture of

sodium silicate and sodium sulfate. V I.Q 1 I I m ~LYYnulql~ l)lr~L~iPr~a~L~nrrm~lYU~~ II UUIU-LJ IIuIug 1IIIIHU$1mifttIuwx uf

thmodmama~ mi~raan~oh~paPs~n~rrrManlsn

18 1

18. The detergent composition of Claim 11 wherein the inorganic 0 water-soluble. alkaline builder i. sodium silicate.

DATE) this 30th day of April, 1973~

COIA~&TE-PALMOLIVE COMPMQY Patent Attorneys for the Applicant: F.B. RICE Co.

es, 0~*S V. ~S C V V C A..

*4 CC C C C V AC V C 9

9. C. .4 I A C.

CC. CC

CC C CV V 9

UC 4COC C