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US3919101A - Carpet cleaning composition and method - Google Patents

Carpet cleaning composition and method Download PDF

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Publication number
US3919101A
US3919101A US348201A US34820173A US3919101A US 3919101 A US3919101 A US 3919101A US 348201 A US348201 A US 348201A US 34820173 A US34820173 A US 34820173A US 3919101 A US3919101 A US 3919101A
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United States
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percent
weight
composition
water
concentrate
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US348201A
Inventor
Raymond Michael Anstett
Charles Edward Buck
Victor Earl Sheaffer
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Colgate Palmolive Co
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Colgate Palmolive Co
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Filing date
Publication date
Priority to DE19712110750 priority Critical patent/DE2110750A1/en
Priority to CA107,304A priority patent/CA941259A/en
Priority to CH390071A priority patent/CH549637A/en
Priority to FR7109349A priority patent/FR2084754A5/fr
Priority to GB2333071*A priority patent/GB1343312A/en
Priority to US00161276A priority patent/US3736259A/en
Priority to DE2232411A priority patent/DE2232411A1/en
Priority to GB3099172A priority patent/GB1393408A/en
Priority to FR7224732A priority patent/FR2145537B1/fr
Application filed by Colgate Palmolive Co filed Critical Colgate Palmolive Co
Priority to US348201A priority patent/US3919101A/en
Application granted granted Critical
Publication of US3919101A publication Critical patent/US3919101A/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0094—High foaming compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • C11D1/10—Amino carboxylic acids; Imino carboxylic acids; Fatty acid condensates thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0043—For use with aerosol devices
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0031—Carpet, upholstery, fur or leather cleansers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2006—Monohydric alcohols
    • C11D3/201—Monohydric alcohols linear
    • C11D3/2013—Monohydric alcohols linear fatty or with at least 8 carbon atoms in the alkyl chain

Definitions

  • This invention relates to a composition for cleaning carpets and more particularly to an aerosol carpet cleaner.
  • Carpets are commonplace in the American house hold. They are made in numerous sizes, shapes. and fabrics. Most households have at least one of the many types available. Since vacuuming of the carpet only removes loose dirt, a more effective means is required to remove soil which is strongly attached to the carpet fibers. Although professional cleaning is quite effective in removing imbedded dirt and soil, it has its disadvantages, the most evident being cost. Equally burdensome is the necessity of removing the carpet and transporting it to the cleaning plant. This not only creates problems in removing and transporting the carpet, but it also leaves the floors uncovered for a long period of time giving a less attractive appearance to the home.
  • the present invention resides in the provision of cleaning compositions for carpets wherein the foregoing and related disadvantages are eliminated or at least mitigated to a substantial extent.
  • the present invention is directed to a fast-foam forming aerosol cleaning composition for carpets which provides improved cleaning, retardation of the rate of resoiling. prevention of excessive wetting and promotion of faster water evaporation.
  • the aforestated aerosol composition is composed primarily of water-soluble surfactant. higher aliphatic alcohol, silica, water, and propellant.
  • the inventive composition is formulated by first preparing a concentrate which essentially contains surfactant, silica, long chain alcohol and water. The concentrate is then placed into a suitable aerosol container to which liquefied propellant is added in the conventional manner.
  • This novel formulation prevents overwetting of the backing of the carpet because of the amazing. unique stable foam which is formed. The foam lattice holds back most of the water molecules from reaching the backing of the carpet thereby pre- 2 venting saturation and concomitant shrinking of the carpet.
  • compositions containing higher aliphatic alcohols have good foam stability.
  • formulations containing in addition, silica provide superior foam stability and antiwetting properties. Foams not containing silica are wetter and therefore are not as effective as silica containing foams in preventing water from draining into and permeating the carpets backing.
  • the compositions of the present invention provide a drier foam mainly due to the fine dispersion of silica throughout the foam lattice.
  • the dispersed silica augments the retaining ability of the foam achieving more efficient retention of the water molecules within foam structure.
  • the silica also provides a greater surface area from which water may more readily evaporate with concomitant acceleration of the drying time of the carpet.
  • the silica particles tend to embed themselves and fill the void and interstices present in the fibrous material comprising the carpet, in effect blocking those sites which would otherwise serve as reservoirs for soil, dust, grease and the like.
  • the useful life of the fabric in view of the protective action of the silica particles, can be significantly enhanced.
  • actual carpet cleaning is greatly facilitated in view of the substantial reduction in actual embedding of dirt particles. the latter tending to agglomerate at the surface of the fabric being thus rendered more accessible to removal operations, e.g., vacuuming.
  • Reflectance data reveal the improved cleaning ability of compositions containing higher aliphatic alcohols in addition to suitable conventional detergents and surfactants. Also discovered is the further improved cleaning ability of compositions containing silica in addition to surfactants and higher aliphatic alcohols. These silica-containing compositions are superior to those which are devoid of this essential ingredient because of the abrasive action of the silica particles on the soiled fibers.
  • Contemplated by the present disclosed invention is a unique, novel composition of silica and higher aliphatic alcohol in combination with water-soluble surfactants in a water/propellant system.
  • the long chain alcohols provide a uniquely structured, foam lattice and the silica dispersed therein increases cleaning power, delays resoiling, prevents excessive draining of water to the carpet backing, and effectuates rapid evaporation of water from the carpet.
  • the higher aliphatic alcohols of the present invention which perform the critical role of foam builder and stabilizer are alcohols which are solids at room temperature. Alcohols with less than 14 carbon atoms in the aliphatic chains are undesirable since they leave a liquid residue on the carpet fibers. Alcohols with more than 20 carbon atoms in the aliphatic chain are also not beneficial since they form poor foams. Higher aliphatic alcohols having 14 to 20 carbon atoms are the preferred ones for use in the present invention. More particularly preferred are those alcohols with 16 to 18 carbon atoms in the aliphatic chain.
  • the solid long chain alcohols agglomerate by nature. They must be dissolved or dispersed in the product in a finely divided state. If not properly prepared. the alcohol moieties agglomerate to form groupings large enough to lodge in and eventually plug up the ap- 3 ertures of the aerosol actuator. causing cessation of the operation. thereby preventing the product from being dispensed. It has been found. and is contemplated. as within the scope of this invention. that to insure against agglomeration of particles. the long chain alcohol must be liquefied first. then heated along with the other organic components in the water to a temperature at which complete solution is obtained. If this is attempted in all or most of the formula water. inordinately high temperatures (approaching the boiling point of water and resulting in manufacturing difficulties and expenses) are required. If. however. to percent of the water of the formulation is used, the organic components are all in complete solution at 160F.. which is very reasonable for factory operation.
  • the recommended content of higher aliphatic alco hol in the composition is between about A; percent to about 2 percent by weight of the concentrate with a range of about /2 percent to about 1V2 percent being particularly preferred.
  • the water-soluble surfactants employable in the present invention may be selected from the variety of surface active materials conventionally employed in the preparation of carpet cleaning compositions. How ever. the use of such materials inherently involves certain disadvantages. the more problematical being those associated with the deposition of tacky or sticky residues. Accordingly, considerable caution should be exercised as regards surfactant selection; in any event, the surfactant material should exhibit the property of drying to a friable residue capable of ready removal by vacuuming. in general. surfactants of the anionic type are preferred for use.
  • the alkali metal alkyl sulfates and alkali metal alkoyl sarcosinates are most preferred.
  • Surfactant materials falling within the alkyl sulfate category may be represented. according to the following structural formula:
  • R comprises an aliphatic hydrocarbon group i.e.. alkyl and alkenyl. such group containing preferably from 10 to l 8 carbon atoms.
  • X represents a watersolubilizing cation e.g.. alkali metal such as sodium. potassium. lithium. ammonium. substituted ammonium. amine salts. etc.
  • Surfactant material falling within the alkoyl sarcosinate category comprises the alkali metal alkoyl sarcosinates which may be represented according to the following structural formula;
  • alkyl sulfates and alkali metal alkoyl sarcosinates are preferred. Although various ratios of sulfate to sarcosinate are operable. the preferred range of proportion of sulfate to sarcosinate being about 1:3 to about 3:1. It is preferred to have the sulfate present in greater proportion than the sarcosinate and in particular the ratio of 3:1 is eminently preferred.
  • the silica material preferred for use in accordance with the present invention has an average particle size ranging from about 0.007 to about 5 microns with a range of about 0.01 to about 2 microns being particularly preferred and most particularly preferred is a range of about 0.012 to about 0.05 microns.
  • the density of the suitable silicas are in the range of about 2 to about 16 lbs/cu. ft. and more preferably 2 to about 6 lbs/cu. ft.
  • colloidal silica is the ingredient of choice. It is available commercially in a wide variety of grades and forms depending upon the process of manufacture employed. Thus. the silica may be of the pyrogenic type. a suitable representative including Cab-O-Sil available commercially from the Cabot Corporation. A precipitated type of colloidal silica suitable for use herein is available commercially from the Philadelphia Quartz Company under the trademark designation Quso; suitable synthetic silicas include for example amorphous silica gel available commercially from W. R. Grace Company under the trademark designation Syloid. In general. the particle size of the pyrogenic and precipitated silicas falls within the lower portion of the range stated while the synthetics are usually provided in the larger particle size range. Also suitable for use is aluminum oxide having the appropriate particle size and density to provide similar effects as does silica.
  • the silica material in amounts ranging from about 0.75 percent to about 5 percent by weight of concentrate. Silica in amounts less than 0.75 percent would have minimal effect and amounts greater than about 5 percent are difficult to disperse and may cause clogging of the actuator and orifice of the button of the aerosol container. To achieve maximum effects from the silica and to avoid problems of clogging. the preferred silica content of the cleansing composition is about 1 to about 2 percent by weight of concentrate.
  • the quantities of water employed vary from about to about 95 percent by weight of concentrate.
  • the concentrate of the present invention is employed in amounts of about to about per cent by weight of the total composition.
  • compositions of the present invention are provided in the form of an aerosol. ln formulating such compositions.
  • the quantity of propellant used is about 5 to about 15 percent by weight of total composition. It was found that the liquefied gas propellant isobutane provides the desirable low pressure sufficient to expel the composition from the container and also provides optimum control over the nature of spray upon discharge of the composition.
  • isobutane is the propellant of choice. propellants which are normally gaseous. liquefied materials such as lower alkanes. such as propane and butane. lower alkyl chloride and chlorinated and fluorinated lower alkanes are suitable for use. Also suitable are mixtures of the above propel lants.
  • optional ingredients of conventional types including preservatives, germicicles. fluorescent brightening agents. anti-corrosion agents. etc. may be incorporated in the composition.
  • the amount of any such ingredient employed is not of critical import although recommended practice would suggest its use in small amounts i.e.. from O to 1 percent by weight of total composition.
  • optional ingredients in addition to those specifically enumerated may be employed in the composition provided herein. the salient requirement being. of course. that any such ingredient be completely devoid of any tendency to deleteriously affect or otherwise degrade the properties and characteristics of the parent composition.
  • compositions of the present invention are particularly and beneficially adapted for use in the cleansing of formed textile fabrics and more particularly. to heavy durable fabrics having a nap or pile. Such compositions are particularly advantageous in the treatment of rugs and carpets.
  • the formed textile fabric may be of vegetable. synthetic or animal origin including mixtures of same.
  • synthetic fabrics as employed in the context of the present invention has reference to a wide variety of materials among which may be mentioned viscose rayon, acetate rayon. nylon. as well as fibers derived from polyester and acrylic type polymers.
  • the cleansing composition is applied to the surface to be treated imparting a layer of foam thereto.
  • a wet sponge containing water is used to spread the foam evenly.
  • the foam is worked until it disappears.
  • the treated area is allowed to dry, then vacuumed to remove dried cleaner and loosened dirt. There is no need for application of heat or other excess energy.
  • composition of the present invention provides superior cleaning activity while imparting to the carpet 6 surface exceptional resistance to soiling despite immediate resumption of traffic. Also provided is a cleaning composition which does not overly wet the carpet backing. provides fast drying of the carpets by preventing water drainage and facilitates water evaporation.
  • a cleaning composition adapted for shampooing carpets and the like consisting essentially of A. 4.0 to 15.0 percent by weight of a water soluble. organic surface active agent selected from the group consisting of sodium lauryl sulfate. sodium lauroyl sarcosinate and mixtures thereof;
  • composition as defined in claim 1 wherein:
  • C. is a colloidal silica.
  • composition of claim 1 in a pressurized aerosol container wherein also present is a normally gaseous liguefied propellant.
  • a containerized aerosol composition as defined in claim 3 wherein ingredients A. B and C in an aqueous medium form a concentrate which is -95 percent by weight of the composition and wherein A is 4-l5 percent by weight of the concentrate and is a mixture of equal parts of sodium lauryl sulfate and sodium lauroyl sarcosinate.
  • B is cetyl alcohol and is 0.5-2 percent by weight of the concentrate and C is 0.75-2.5 percent by weight of the concentrate and is colloidal silica having a maximum particle size of about 5 microns; and said propellant is isobutane and is present in an amount from about 5-15 percent by weight of the composition.
  • a pressurized aerosol package consisting essentially of a valved container having therein about 85-95 percent by weight ofa concentrate and 15 to 5 percent by weight of a liquefied normally gaseous propellant.
  • said concentrate consisting essentially of:
  • a watersoluble anionic. organic. surface active agent selected from the group consisting of l alkyl sulfates represented by the fomiula ROSO X wherein R is an aliphatic hydrocarbon group containing [0 to 18 carbon atom

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Cosmetics (AREA)

Abstract

A fast-foaming, carpet cleaner containing water-soluble surfactant, silica, higher aliphatic alcohol, water and liquefied propellant. The composition which is dispensed from an aerosol container provides improved cleaning, exceptionally stable foam which prevents oversetting of the carpet and resoiling retardation.

Description

United States Patent 1191 Anstett et a1.
CARPET CLEANING COMPOSITION AND METHOD Inventors: Raymond Michael Anstett, Hazlet;
Charles Edward Buck, Caldwell; Victor Earl Sheaffer. Glen Gardner. all of NJ.
Colgate-Palmolive Company, New York, N.Y.
Filed: Apr. 5, 1973 Appl. No: 348,201
Related U.S. Application Data Continuation of Ser. No. 20.398. March 17. 1970. abandoned.
Assignee:
U.S. Cl. 252/90; 252/89; 252/153; 252/154; 252/155; 252/305; 252/546; 252/550. 8/137 Int. CIR... CllD 1/10; C1 1D 3/14'.C11D 3/20 Field of Search 252/88. 89. 90. 305. 163. 252/153. 546. 154. 155'. 8/137 References Cited UNITED STATES PATENTS 7/1939 Martin 252/550 Nov. 11, 1975 2.344.671 3/1944 Bertsch 252/164 2.913.418 11/1959 Sohngen 252/16 3.206.408 9/1965 Vitalis 252/557 3.401.007 9/1968 Hoffman 252/577 X 3.630.919 12/1971 Sheafferw. 252/88 3.714.049 1/1973 Charle 252/90 OTHER PUBLICATIONS The Chemical Formulary. Vol. Xlll. Edited by H. Bennett. published by The Chemical Publishing Co.. New York. 1967. page 381.
Prinmr Evuminer-Dennis E. Talbert. Jr. Assistant [imminer-Dennis L. Albrecht Attorney. Agenl. 0r Firm-Herbert S. Sylvester; Muuray M. Gn'll; Norman Blumenkopf 9 Claims. N0 Drawings CARPET CLEANING COMPOSITION AND METHOD This is a continuation, of application Ser. No. 20,398 filed Mar. 17, 1970 now abandoned.
This invention relates to a composition for cleaning carpets and more particularly to an aerosol carpet cleaner.
Carpets are commonplace in the American house hold. They are made in numerous sizes, shapes. and fabrics. Most households have at least one of the many types available. Since vacuuming of the carpet only removes loose dirt, a more effective means is required to remove soil which is strongly attached to the carpet fibers. Although professional cleaning is quite effective in removing imbedded dirt and soil, it has its disadvantages, the most evident being cost. Equally burdensome is the necessity of removing the carpet and transporting it to the cleaning plant. This not only creates problems in removing and transporting the carpet, but it also leaves the floors uncovered for a long period of time giving a less attractive appearance to the home.
In view of both the economical and physical inconveniences, the need for a do-it-yourself carpet cleaning composition arose. In response to this need, many cleaning compositions were developed and commercially exploited. They were formulated in a variety of forms, i.e., dry powder, liquid, and aerosol. Although these compositions have saved consumers large expenditures on professional rug cleaning, many compositions require special equipment necessitating further expenditure of funds and equipment storage problems.
Other problems resulting from the use of do-it-yourself compositions are the slow drying of the carpets after they have been shampooed, and the leaving of tacky, sticky residues which promote resoiling of the carpet. The slow drying of the carpet is the result of water, used in shampooing, permeating the backing of the carpet. Since the backing of the carpet is not exposed to the air, the soaked in water takes a long time to evaporate. Resoiling is also a major problem and although compositions are marketed containing detergents which do not leave a sticky or tacky residue, resoiling is not retarded and it is necessary then to clean the carpet more often.
The present invention resides in the provision of cleaning compositions for carpets wherein the foregoing and related disadvantages are eliminated or at least mitigated to a substantial extent.
The present invention is directed to a fast-foam forming aerosol cleaning composition for carpets which provides improved cleaning, retardation of the rate of resoiling. prevention of excessive wetting and promotion of faster water evaporation. The aforestated aerosol composition is composed primarily of water-soluble surfactant. higher aliphatic alcohol, silica, water, and propellant. The inventive composition is formulated by first preparing a concentrate which essentially contains surfactant, silica, long chain alcohol and water. The concentrate is then placed into a suitable aerosol container to which liquefied propellant is added in the conventional manner. This novel formulation prevents overwetting of the backing of the carpet because of the amazing. unique stable foam which is formed. The foam lattice holds back most of the water molecules from reaching the backing of the carpet thereby pre- 2 venting saturation and concomitant shrinking of the carpet.
Even though compositions containing higher aliphatic alcohols have good foam stability. formulations containing in addition, silica, provide superior foam stability and antiwetting properties. Foams not containing silica are wetter and therefore are not as effective as silica containing foams in preventing water from draining into and permeating the carpets backing. The compositions of the present invention provide a drier foam mainly due to the fine dispersion of silica throughout the foam lattice. The dispersed silica augments the retaining ability of the foam achieving more efficient retention of the water molecules within foam structure. The silica also provides a greater surface area from which water may more readily evaporate with concomitant acceleration of the drying time of the carpet.
Commensurate with the anti-wetting properties of the novel formulation is res/oiling retardation. It is postulated in explanation thereof that the silica particles tend to embed themselves and fill the void and interstices present in the fibrous material comprising the carpet, in effect blocking those sites which would otherwise serve as reservoirs for soil, dust, grease and the like. As will be readily evident, the useful life of the fabric, in view of the protective action of the silica particles, can be significantly enhanced. Moreover, actual carpet cleaning is greatly facilitated in view of the substantial reduction in actual embedding of dirt particles. the latter tending to agglomerate at the surface of the fabric being thus rendered more accessible to removal operations, e.g., vacuuming.
Reflectance data reveal the improved cleaning ability of compositions containing higher aliphatic alcohols in addition to suitable conventional detergents and surfactants. Also discovered is the further improved cleaning ability of compositions containing silica in addition to surfactants and higher aliphatic alcohols. These silica-containing compositions are superior to those which are devoid of this essential ingredient because of the abrasive action of the silica particles on the soiled fibers.
Contemplated by the present disclosed invention is a unique, novel composition of silica and higher aliphatic alcohol in combination with water-soluble surfactants in a water/propellant system. The long chain alcohols provide a uniquely structured, foam lattice and the silica dispersed therein increases cleaning power, delays resoiling, prevents excessive draining of water to the carpet backing, and effectuates rapid evaporation of water from the carpet.
The higher aliphatic alcohols of the present invention which perform the critical role of foam builder and stabilizer are alcohols which are solids at room temperature. Alcohols with less than 14 carbon atoms in the aliphatic chains are undesirable since they leave a liquid residue on the carpet fibers. Alcohols with more than 20 carbon atoms in the aliphatic chain are also not beneficial since they form poor foams. Higher aliphatic alcohols having 14 to 20 carbon atoms are the preferred ones for use in the present invention. More particularly preferred are those alcohols with 16 to 18 carbon atoms in the aliphatic chain.
Since the solid long chain alcohols agglomerate by nature. they must be dissolved or dispersed in the product in a finely divided state. If not properly prepared. the alcohol moieties agglomerate to form groupings large enough to lodge in and eventually plug up the ap- 3 ertures of the aerosol actuator. causing cessation of the operation. thereby preventing the product from being dispensed. It has been found. and is contemplated. as within the scope of this invention. that to insure against agglomeration of particles. the long chain alcohol must be liquefied first. then heated along with the other organic components in the water to a temperature at which complete solution is obtained. If this is attempted in all or most of the formula water. inordinately high temperatures (approaching the boiling point of water and resulting in manufacturing difficulties and expenses) are required. If. however. to percent of the water of the formulation is used, the organic components are all in complete solution at 160F.. which is very reasonable for factory operation.
Unless the higher aliphatic alcohols are incorporated in the composition by the above stated method. clogging of the actuator and orifice of the aerosol button will occur. The above stated method provides sufficiently small particles of long chain alcohol which do not agglomerate and clog the actuator or orifice as would occur in compositions in which the organic alcohol is not so prepared.
The recommended content of higher aliphatic alco hol in the composition is between about A; percent to about 2 percent by weight of the concentrate with a range of about /2 percent to about 1V2 percent being particularly preferred.
The water-soluble surfactants employable in the present invention may be selected from the variety of surface active materials conventionally employed in the preparation of carpet cleaning compositions. How ever. the use of such materials inherently involves certain disadvantages. the more problematical being those associated with the deposition of tacky or sticky residues. Accordingly, considerable caution should be exercised as regards surfactant selection; in any event, the surfactant material should exhibit the property of drying to a friable residue capable of ready removal by vacuuming. in general. surfactants of the anionic type are preferred for use. The alkali metal alkyl sulfates and alkali metal alkoyl sarcosinates are most preferred.
' Surfactant materials falling within the alkyl sulfate category may be represented. according to the following structural formula:
wherein R comprises an aliphatic hydrocarbon group i.e.. alkyl and alkenyl. such group containing preferably from 10 to l 8 carbon atoms. and X represents a watersolubilizing cation e.g.. alkali metal such as sodium. potassium. lithium. ammonium. substituted ammonium. amine salts. etc.
Surfactant material falling within the alkoyl sarcosinate category comprises the alkali metal alkoyl sarcosinates which may be represented according to the following structural formula;
alkyl sulfates and alkali metal alkoyl sarcosinates are preferred. Although various ratios of sulfate to sarcosinate are operable. the preferred range of proportion of sulfate to sarcosinate being about 1:3 to about 3:1. It is preferred to have the sulfate present in greater proportion than the sarcosinate and in particular the ratio of 3:1 is eminently preferred.
The silica material preferred for use in accordance with the present invention has an average particle size ranging from about 0.007 to about 5 microns with a range of about 0.01 to about 2 microns being particularly preferred and most particularly preferred is a range of about 0.012 to about 0.05 microns. The density of the suitable silicas are in the range of about 2 to about 16 lbs/cu. ft. and more preferably 2 to about 6 lbs/cu. ft.
Colloidal silica is the ingredient of choice. It is available commercially in a wide variety of grades and forms depending upon the process of manufacture employed. Thus. the silica may be of the pyrogenic type. a suitable representative including Cab-O-Sil available commercially from the Cabot Corporation. A precipitated type of colloidal silica suitable for use herein is available commercially from the Philadelphia Quartz Company under the trademark designation Quso; suitable synthetic silicas include for example amorphous silica gel available commercially from W. R. Grace Company under the trademark designation Syloid. In general. the particle size of the pyrogenic and precipitated silicas falls within the lower portion of the range stated while the synthetics are usually provided in the larger particle size range. Also suitable for use is aluminum oxide having the appropriate particle size and density to provide similar effects as does silica.
In order to assure the obtention of optimum results. it is recommended practice to utilize the silica material in amounts ranging from about 0.75 percent to about 5 percent by weight of concentrate. Silica in amounts less than 0.75 percent would have minimal effect and amounts greater than about 5 percent are difficult to disperse and may cause clogging of the actuator and orifice of the button of the aerosol container. To achieve maximum effects from the silica and to avoid problems of clogging. the preferred silica content of the cleansing composition is about 1 to about 2 percent by weight of concentrate.
In formulating the concentrate of the compositions of the present invention. the quantities of water employed vary from about to about 95 percent by weight of concentrate. The concentrate of the present invention is employed in amounts of about to about per cent by weight of the total composition.
The compositions of the present invention are provided in the form of an aerosol. ln formulating such compositions. the quantity of propellant used is about 5 to about 15 percent by weight of total composition. It was found that the liquefied gas propellant isobutane provides the desirable low pressure sufficient to expel the composition from the container and also provides optimum control over the nature of spray upon discharge of the composition. Although isobutane is the propellant of choice. propellants which are normally gaseous. liquefied materials such as lower alkanes. such as propane and butane. lower alkyl chloride and chlorinated and fluorinated lower alkanes are suitable for use. Also suitable are mixtures of the above propel lants.
It is to be understood that optional ingredients of conventional types including preservatives, germicicles. fluorescent brightening agents. anti-corrosion agents. etc. may be incorporated in the composition. The amount of any such ingredient employed is not of critical import although recommended practice would suggest its use in small amounts i.e.. from O to 1 percent by weight of total composition. It will be understood of course that optional ingredients in addition to those specifically enumerated may be employed in the composition provided herein. the salient requirement being. of course. that any such ingredient be completely devoid of any tendency to deleteriously affect or otherwise degrade the properties and characteristics of the parent composition.
The compositions of the present invention are particularly and beneficially adapted for use in the cleansing of formed textile fabrics and more particularly. to heavy durable fabrics having a nap or pile. Such compositions are particularly advantageous in the treatment of rugs and carpets. In any event. the formed textile fabric may be of vegetable. synthetic or animal origin including mixtures of same. The term synthetic fabrics as employed in the context of the present invention has reference to a wide variety of materials among which may be mentioned viscose rayon, acetate rayon. nylon. as well as fibers derived from polyester and acrylic type polymers.
in practice. the cleansing composition is applied to the surface to be treated imparting a layer of foam thereto. A wet sponge containing water is used to spread the foam evenly. The foam is worked until it disappears. The treated area is allowed to dry, then vacuumed to remove dried cleaner and loosened dirt. There is no need for application of heat or other excess energy.
The following examples are given for purposes of illustration only and do not constitute a limitation on the present invention. All percentages are by weight.
The above formulations are adjusted to a pH of about 9.2. however a range of pH of 8.5-9.5 is suitable for practice of this invention. A composition of low pH is a less? fficient cleaner and also causes can corrosion.
It as further been found that certain of the fluorescent brighteners. which improve the appearance of carpeting further than the cleaning process. cannot be dissolved in the composition as described. For these. it becomes necessary to first liquefy the solid long chain alcohol. dissolve the brightener therein. and then add this to the organic-water mixture at l60F. as previously described.
The composition of the present invention provides superior cleaning activity while imparting to the carpet 6 surface exceptional resistance to soiling despite immediate resumption of traffic. Also provided is a cleaning composition which does not overly wet the carpet backing. provides fast drying of the carpets by preventing water drainage and facilitates water evaporation.
Although the present invention has been described and illustrated. it is understood that modifications and variations of compositions and particulars are contemplated within the scope of the appended claims.
We claim:
1. A cleaning composition adapted for shampooing carpets and the like consisting essentially of A. 4.0 to 15.0 percent by weight of a water soluble. organic surface active agent selected from the group consisting of sodium lauryl sulfate. sodium lauroyl sarcosinate and mixtures thereof;
B. 0.25 to 2.0 percent by weight of cetyl alcohol; and
C. 0.75 to 5.0 percent by weight of a finely divided water insoluble siliceous material in an aqueous medium.
2. A composition as defined in claim 1 wherein:
C. is a colloidal silica.
3. The composition of claim 1 in a pressurized aerosol container wherein also present is a normally gaseous liguefied propellant.
4. A containerized aerosol composition as defined in claim 3 wherein ingredients A. B and C in an aqueous medium form a concentrate which is -95 percent by weight of the composition and wherein A is 4-l5 percent by weight of the concentrate and is a mixture of equal parts of sodium lauryl sulfate and sodium lauroyl sarcosinate. B is cetyl alcohol and is 0.5-2 percent by weight of the concentrate and C is 0.75-2.5 percent by weight of the concentrate and is colloidal silica having a maximum particle size of about 5 microns; and said propellant is isobutane and is present in an amount from about 5-15 percent by weight of the composition.
5. In a process for making a composition as defined in claim 1, the steps consisting essentially of liquifying component B. then adding said liquified alcohol to part of the water containing component A. and thereafter heating said mixture to a temperature sufficient to effect substantial solution of all components in the water and thereafter mixing component C with said clarified mixture and adding the balance of the formula water.
6. A pressurized aerosol package consisting essentially of a valved container having therein about 85-95 percent by weight ofa concentrate and 15 to 5 percent by weight of a liquefied normally gaseous propellant. said concentrate consisting essentially of:
A. 4-l5 percent by weight of the concentrate. of a watersoluble anionic. organic. surface active agent selected from the group consisting of l alkyl sulfates represented by the fomiula ROSO X wherein R is an aliphatic hydrocarbon group containing [0 to 18 carbon atoms and X represents a cation selected from the group consisting of sodium. potassium. lithium. and ammonium; 2) alkoyl sarcosinates represented by the formula R,CON(CH.;)CH- COOX wherein R is an aliphatic hydrocarbon group containing from 9 to 18 carbon atoms and wherein X represents a cation selected from the group consisting of sodium. potassium. lithium. and ammonium; and 3) mixtures thereof;
B. 0.25 to 2 percent by weight of the concentrate. of
an aliphatic C -C fatty alcohol;
C. 0.75 to 5 percent by weight of the concentrate. of a finely divided water insoluble siliceous material having an average particle size ranging from about (1.01 to about 2 microns;
and
D. 65 to 95 percent by weight of the concentrate. of

Claims (8)

1. A cleaning composition adapted for shampooing carpets and the like consisting essentially of A. 4.0 to 15.0 percent by weight of a water soluble, organic surface active agent selected from the group consisting of sodium lauryl sulfate, sodium lauroyl sarcosinate and mixtures thereof; B. 0.25 to 2.0 percent by weight of cetyl alcohol; and C. 0.75 to 5.0 percent by weight of a finely divided water insoluble siliceous material in an aqueous medium.
2. A composition as defined in claim 1 wherein: C. Is a colloidal silica.
3. The composition of claim 1 in a pressurized aerosol container wherein also present is a normally gasEous liguefied propellant.
4. A containerized aerosol composition as defined in claim 3 wherein ingredients A, B and C in an aqueous medium form a concentrate which is 85-95 percent by weight of the composition and wherein A is 4-15 percent by weight of the concentrate and is a mixture of equal parts of sodium lauryl sulfate and sodium lauroyl sarcosinate, B is cetyl alcohol and is 0.5- 2 percent by weight of the concentrate and C is 0.75- 2.5 percent by weight of the concentrate and is colloidal silica having a maximum particle size of about 5 microns; and said propellant is isobutane and is present in an amount from about 5-15 percent by weight of the composition.
5. In a process for making a composition as defined in claim 1, the steps consisting essentially of liquifying component B, then adding said liquified alcohol to part of the water containing component A, and thereafter heating said mixture to a temperature sufficient to effect substantial solution of all components in the water and thereafter mixing component C with said clarified mixture and adding the balance of the formula water.
7. A package as defined in claim 6 wherein said surface active agent is a mixture of C10-C18 alkyl sulfate and a C9-C18 alkoyl sarcosinate.
8. A package as defined in claim 7 wherein said surface active agent is a mixture of equal parts of sodium lauryl sulfate and sodium lauroyl sarcosinate.
9. A package as defined in claim 6 wherein said alcohol is cetyl alcohol.
US348201A 1970-03-17 1973-04-05 Carpet cleaning composition and method Expired - Lifetime US3919101A (en)

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Application Number Priority Date Filing Date Title
DE19712110750 DE2110750A1 (en) 1970-03-17 1971-03-06 Carpet cleaning agent and process for its manufacture
CA107,304A CA941259A (en) 1970-03-17 1971-03-09 Cleansing compositions and method
CH390071A CH549637A (en) 1970-03-17 1971-03-17 DETERGENT AND METHOD FOR MANUFACTURING IT.
FR7109349A FR2084754A5 (en) 1970-03-17 1971-03-17
GB2333071*A GB1343312A (en) 1970-03-17 1971-04-19 Cleaning compositions and a method for preparing them
US00161276A US3736259A (en) 1970-03-17 1971-07-09 Cleaning compositions and method
DE2232411A DE2232411A1 (en) 1970-03-17 1972-07-01 CARPET CLEANER
GB3099172A GB1393408A (en) 1970-03-17 1972-07-03 Cleaning compositions
FR7224732A FR2145537B1 (en) 1970-03-17 1972-07-07
US348201A US3919101A (en) 1970-03-17 1973-04-05 Carpet cleaning composition and method

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US16127671A 1971-07-09 1971-07-09
US348201A US3919101A (en) 1970-03-17 1973-04-05 Carpet cleaning composition and method

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US4490270A (en) * 1982-07-28 1984-12-25 Purex Corporation Sanitizing liquid shampoo for carpets
US4652389A (en) * 1984-12-14 1987-03-24 The Clorox Company Carpet cleaner
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US4750942A (en) * 1986-07-08 1988-06-14 Lever Brothers Company Rinse aid
US4780100A (en) * 1984-12-14 1988-10-25 The Clorox Company Fabric cleaner
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US5002684A (en) * 1987-04-08 1991-03-26 Harris Research, Inc. Composition and method for removal of stains from fibers
US5167667A (en) * 1989-08-11 1992-12-01 Wacker-Chemitronic Gesellschaft Fur Elektronik-Grundstoffe Mbh Process for treating polishing cloths used for semiconductor wafers
EP0677577A1 (en) * 1994-03-30 1995-10-18 The Procter & Gamble Company Foamed cleaning compositions and method of treating textile fabrics
US5514302A (en) * 1992-09-25 1996-05-07 S.C. Johnson & Son, Inc. Fabric cleaning shampoo compositions
US5902225A (en) * 1994-10-11 1999-05-11 Monson; James A. Post foamable multiple-sequential-foaming composition
US6008175A (en) * 1996-03-04 1999-12-28 The Proctor & Gamble Company Method of cleaning carpets comprising an amineoxide or acyl sarcosinate and a source of active oxygen
US6239166B1 (en) * 1997-04-24 2001-05-29 Robert H. Black Compositions for killing dust mites and methods of using same
US6315949B1 (en) 1999-12-30 2001-11-13 Robert Carmello Composition for carpet and room deodorizer and method of delivering the composition
US6553887B1 (en) * 1999-02-19 2003-04-29 Her Majesty The Queen In Right Of Canada As Represented By The Solicitor General Acting Through The Commissioner Of The Royal Canadian Mounted Police Foam formulations
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US4490270A (en) * 1982-07-28 1984-12-25 Purex Corporation Sanitizing liquid shampoo for carpets
US4780100A (en) * 1984-12-14 1988-10-25 The Clorox Company Fabric cleaner
US4652389A (en) * 1984-12-14 1987-03-24 The Clorox Company Carpet cleaner
EP0187004A3 (en) * 1984-12-14 1989-08-09 The Clorox Company Fabric cleaner
US4703000A (en) * 1985-09-30 1987-10-27 James River Graphics, Inc. Anti-brick/anti-static compositions useful for treating film surfaces and films coated therewith
US4750942A (en) * 1986-07-08 1988-06-14 Lever Brothers Company Rinse aid
US5002684A (en) * 1987-04-08 1991-03-26 Harris Research, Inc. Composition and method for removal of stains from fibers
US4908149A (en) * 1988-06-10 1990-03-13 Milliken Research Corporation Cleaning composition for textiles containing sulfonated colorless dye site blocker
US5167667A (en) * 1989-08-11 1992-12-01 Wacker-Chemitronic Gesellschaft Fur Elektronik-Grundstoffe Mbh Process for treating polishing cloths used for semiconductor wafers
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EP0677577A1 (en) * 1994-03-30 1995-10-18 The Procter & Gamble Company Foamed cleaning compositions and method of treating textile fabrics
EP0744460A3 (en) * 1994-03-30 1999-10-27 The Procter & Gamble Company Foamed cleaning compositions and method of treating textile fabrics
EP0744461A3 (en) * 1994-03-30 1999-10-20 The Procter & Gamble Company Foamed cleaning compositions and method of treating textile fabrics
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US6553887B1 (en) * 1999-02-19 2003-04-29 Her Majesty The Queen In Right Of Canada As Represented By The Solicitor General Acting Through The Commissioner Of The Royal Canadian Mounted Police Foam formulations
US6315949B1 (en) 1999-12-30 2001-11-13 Robert Carmello Composition for carpet and room deodorizer and method of delivering the composition
US20100172947A1 (en) * 2005-10-17 2010-07-08 Solvay Sa Pediculicidal Process And Composition
DE102006000691A1 (en) * 2006-01-02 2007-07-05 Henkel Kgaa Use of nano-particulate colloidal silica as corrosion inhibitor in e.g. aqueous compositions, aerosol on water basis, furniture care, general-purpose cleaner, deodorants, hair spray and glass cleaner
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DE2232411A1 (en) 1973-03-01
US3736259A (en) 1973-05-29
CH549637A (en) 1974-05-31
FR2145537B1 (en) 1977-04-01
FR2084754A5 (en) 1971-12-17
GB1343312A (en) 1974-01-10
GB1393408A (en) 1975-05-07
DE2110750A1 (en) 1971-10-07
FR2145537A1 (en) 1973-02-23
CA941259A (en) 1974-02-05

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