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
  • C11D3/0031—Carpet, upholstery, fur or leather cleansers
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
  • C07C59/125—Saturated compounds having only one carboxyl group and containing ether groups, groups, groups, or groups
• • 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
  • C11D1/06—Ether- or thioether carboxylic acids

Definitions

• ABSTRACT A carpet shampoo containing as essential ingredient a mixture of a. 10-70 by weight of a detergent of the formula l 2 4 )1
• This shampoo can be prepared in the form of an aqueous concentrate of a solids content of e.g. 20-50 and this concentrate can be diluted to the use concentration of l-30
• the shampoo can also be prepared conveniently in the form of an aerosol.
• the Dutch patent application 6409345 states explicitly that any of the various classes of anionic detergents can be used in the form of their lithium salts in shampoos for carpets, rugs and the like.
• fatty alcohol sulfates, fatty alcohol ether sulfates, alkyl benzene sulfonates, alkyl succinic ester sulfonates, alkane sulfonates and also higher carboxylates No preference is stated for any of these classes of compounds; only a preference is stated for compounds containing l2-l 8 carbon atoms. This preference in this form is rather incomprehensible, but is probably meant to relate to the hydrophobic part of the molecule.
• the surfactants are compounds of the formula [RO(C H.,O),,-(CH COO],,,M wherein R is a hydrophobic hydrocarbon residue of eight to 20 carbon atoms, which may contain one or more hydrophobic oxyalkylene units, n has an average value of 0-10, I is one of the numbers 1 and 2, m is one of the numbers 1 and 2 and M is a monovalent or divalent cation.
• the hydrocarbon residue R can be saturated or unsaturated, and it may contain an aromatic nucleus.
• the number of carbons of this residue has some influence on the HLB-value of the product, and therefore it is preferred that the average value of n is in the lower end of the defined range in case the number of carbon atoms in R is smaller than 12, whereas values of n near the upper limit are more desirable, when R contains 16 carbon atoms or more.
• the residue R contains 12-14 carbon atoms in which case average values of n in the range of 3-4 yield a highly satisfactory product.
• the present compounds wherein at is 1, can be prepared by either reacting a polyether alcoholate of the formula RO--(C H O),,Me, wherein Me is an alkali metal, with a haloacetic acid or salt thereof, or oxidizing a compound of the formula RO(C2H4O),, H, whilst compounds, wherein x is 2, can be prepared by reacting a compound RO(C H4O),,H with e.g. acrylonitrile, followed by hydrolysis.
• the above-mentioned ethoxylated intermediates are in turn prepared by ethoxylating a compound of the formula ROH.
• a particularly suitable starting product of the formula ROH is commercial lauryl alcohol derived from oils and fats which contains about 70-75% of n-lauryl alcohol and about 25-30% of other alcohols having even numbers of carbon atoms. mainly tetradecyl alcohol. From this commercial alcohol a very satisfactory detergent product can be prepared. Of course, synthetic alcohol products, also the branched products (such as the oxo alcohols) and the like can be used likewise.
• the ethoxylation product having the desired narrow distribution of n values can be obtained in turn by separating a desired fraction from a broader range of ethoxylation products, but it is also possible to carry out the ethoxylation with acidic catalysts, such as described for example in US. Pat. No. 2,870,220.
• E0 means an oxyethylene unit: The salts of octyloxy-CH CO0H, octyloxy- E0CH CO0H, octyloxy-EO-CH CH COOH, octyloxy-(E0) CH CH C0OH, octyloxy- (E0) C1-l C00l-l, nonylQXy-CH COOH, nonyloxy- (E0) CH CH COOH, decyloxy-CH C00H, decyloxy-EO--CH CO0H, decyloxy-E0CH CH CO0H, decyloxy-( EO) -CH COOH, decyloxy- (EO) CH CH C00H, dodecyloxy- (E0) --CH CO0H, dodecyloxy-(EO) CH COOH,
• the detergents used according to this invention are formulated to rug shampoos or the like in the usual manner, i.e. preferably with solids with which they give a quick-drying residue which takes up the dirt.
• any solid having the required action such as the absorbing materials mentioned in Dutch patent application 6409345, or artificial resins as mentioned in the above-cited article in Chemical Week.
• brittle artificial resins i.e. resins which are filmforming at temperatures above 50C are preferred.
• Such resins may be derived entirely or partially from methyl methacrylate, styrene monomers and similar hard monomers.
• the resins to be used in the shampoo of the invention are prepared by emulsion polymerization, using as emulsifier or dispersing agent a salt of an acid R0(C- H4O),,(CH COOH. After the polymerization some more of the same or a different salt according to the above general formula can be added, if necessary. In this way a composition is obtained, containing both the desired detergetn salts and the artificial resin component.
• the shampoos of the invention can be prepared in the form of concentrates which can be diluted in the final use concentration.
• concentration of the detergent is usually about 0.5 to 3 by weight.
• the content of the solid sorbents, such as brittle resins or bentonite or the like in the rug shampoos in the use concentration is usually also about 0.5 to 3 by weight.
• higher use concentrations are usually applied, such as 5-15 by weight of the aqueous composition (with the exclusion of the propelling gas).
• Preferably roughly equal amounts of detergent and solid are used, but of course this is not essential, and a broad range of weight ratios between these two substances can be used.
• EXAMPLE 2 A nylon carpet of 2 metres X 2 metres was used. The carpet was divided into four equal parts by cellophane strips which were stuck into the pole of the carpet. Each of the so obtained carpet quarts was treated with a 15 aqueous solution of a detergent, and the follow ing four different detergents were used for the four quarts:
• the carpet parts treated with the products b) and c) were dry and non-tacky after about six hours; the products b) and c) can be considered equivalent in this respect. However, the parts treated with the products a) and d) still had a stiff and tacky feel after one or two nights. Accordingly, in this respect the products b) and c) are clearly superior over the products a) and d), and
• EXAMPLE 3 Aqueous compositions were prepared which contained 2 by weight of detergent and 2 by weight (as dry resin) of the commercial product Ubatol 3101 (styrene-acrylate resin). Three different compositions were prepared which contained the following detergents: v
• Nylon carpets were treated with the three above compositions. Thereafter they were left to dry at ambient temperature (about 20C).
• the carpets treated with the composition containing detergent a. were well-cleaned and dry after about 2 hours so that they could be vacuum-cleaned to remove the dry residue.
• composition containing detergent b) yielded about the same good results, but the composition containing detergent a) was somewhat superior to this composition.
• composition containing detergent 0 The carpets treated with the composition containing detergent 0) still had a tacky feel after one or two nights. It is clear that the composition containing detergent c) has no commercial usefulness.
• EXAMPLE 4 A composition was prepared containing 6 parts of the same lithium salt as used in part a) of Example 3, 6 parts by weight of alumina (a product marketed under the name Dispal" by Condea), and for the rest water. A nylon carpet was treated with this composition and then dried at ambient temperature. A dry powdery residue was obtained within 2 hours.
• EXAMPLE A number of aqueous compositions were prepared, all of which contained 4 by weight of a mixture of detergent and adsorbing solid. In all these cases the weight ratio between pure detergent and adsorbing solid was 38:62. For simplicitys sake, the mixtures have been summarized in the table below.
• the detergents used in this Example were all salts with monovalent cations, and accordingly they can be indicated with the formula RO(C H O),,CH,COOM. Those products, wherein R is lauryl or oleyl, were derived from technical grade lauryl alcohol, and technical grade oleyl alcohol, respectively. Furthermore, all detergents contained about of non-ionic ethoxylated starting alcohol.
• the table states the nature of R, the value of n and the nature of the cation M.
• the adsorbing solids have been indicated in the table with the following codes:
• Ne a methyl methacrylate polymer, available from P0]- yvinyl Chemie Holland N.V.
• U 3101 an acrylic-styrene resin, available as emulsion from Stapol S.A., Lausanne D: Dispal, alumina sold by Condea B: Bentonite K: Kaolin Styr: a pure polystyrene.
• n are of course average values. In those cases, where the ethoxylation has been carried out with an acidic catalyst, and the product has a narrow distribution of n-values, this has been indicated with N after the value for n.
• DEA diethanolamine
• Morph means morpholine.
• Composition R n M Adsorbent a decyl 2N Li Ne b myristyl 3.5N DEA Ne c myristyl 3.5N K Ne d decyl 2N Li U 3101 e myristyl 3.5N Li Ne f myristyl 3,5N K B 3 myristyl 3.5N Morph Ne h cetyl 8 NH.
• the detergent of this composition was a product of the formula R(OC I-I ),.OCl-I- -COOLi, wherein R was derived from commercial lauryl alcohol (about 70 of n-dodecyl and about 30 of n-tetradecyl alcohol), and n had an average value of 3.3 (narrow distribution).
• the detergent as a 22.5 solution was mixed with a 40% poly( methyl methacrylate) emulsion in the weight ratio 485:515 and the so obtained mixture was diluted with water to the 14-fold volume. This diluted composition was used as the shampoo.
• the surface resistivity in ohms was measured for each of the carpets in accordance with the method DIN 53482-852. Then each of the carpets was laid in a room, where people used to come frequently, and the measurements were repeated after 1,000, 2,000, 3,000, and 5,000 persons had walked thereon. In all cases it took about a wek until 1,000 persons had walked on the carpet.
• Carpet- A Short pile; untreated; surface resistivity 10 Ohms. After 1,000, 2,000, 3,000, and 5,000 persons had walked on the carpet, the value found remained always 10 Ohms.
• Carpet B Short pile, shampooed with the above composition: Initial value 7.5.10 Ohms.
• Carpet C Long pile; untreated; surface resistance 10 Ohms. Values of 10 Ohms were also found after 1,000, 2,000, 3,000, and 5,000 persons had walked on this carpet.
• Carpet D Long pile; shampooed with the above composition: Initial value: 6.6. 10' Ohms.
• the present compositions have a very good and long-lasting antistatic effect. Accordingly they can also be used to treat carpets which have created problems by too high electrostatic charges which sometimes cause an electric shock to persons who standing on the carpet touch a metal doorknob or the like.
• the antistatic properties are also a cause of the excellent resoiling properties of the present compositions. Carpets treated with the present shampoo have acquired a better conductivity, and accordingly accumulate less electrostatic charges, and consequently attract less dust and soil particles.
• the shampoos were prepared in the same way as in Example 8, but with various detergents and resins.
• the resin was a styrene-acrylate resin, the same commercial product as used in Example 3.
• shampoos D, E, and F a poly(methyl methacrylate) resin was used.
• the detergent was the same as used in Example 8.
• shampoos B and E a mixture of this same detergent with decyl- (OC I-I )',,OCH COOK wherein it had an average value of 0.5, was used in the weight ratio 9:1.
• shampoos C and F a mixture of the same detergents was used in the weight ratio :25.
• shampoos C, D, E, and F were somewhat superior to shampoos A and B.
• a carpet shampoo was prepared by polymerizing methyl methacrylate in an aqueous emulsion which contained as emulsifier the detergent of Example 8.
• the methyl methacrylate was polymerized with the aid of a small amount of benzoyl persulfate catalyst.
• concentrations in the emulsion were chosen in such a way that the final product had a solids content of about 31.5 by weight of which 10.9 was detergent and 20.6 polymer.
• the detergent was added to the polymerization mixture as a 22.5 aqueous solution.
• EXAMPLE 1 l A rug shampoo was prepared in the form of an aerosol. A mixture of a 22.5 solution of the same detergent as in Example 8 with a 40 poly( methyl methacrylate) emulsion in the weight ratio 485:515 was prepared. 101.5 Grams of this mixture were diluted with l6l grams of water so that the solids content of the mixture was about 12 This mixture was filled in aerosol bottles, and an amount of 87.5 grams of propelling gas was used. As the propelling gas a butane-propane mixture was chosen. Of course, one can also use one of the well-known Freon products.
• EXAMPLE 12 A number of shampoos was prepared in accordance with the process of Example 8, but using various detergents, and one shampoo was prepared according to Example ll. A carpet was divided into strips and each strip was treated with one of the shampoos, whereas two of the strips were just treated with water for comparative purposes. The resoiling properties were determined after l4 days by a panel of 4 persons.
• the detergents used in the shampoos prepared according to Example 8 had the formula [RO(C H O)- ,,CH COO],,,M. They are further specified in the following table, wherein N.D. means narrow distribution.
• EXAMPLE 13 A number of rug shampoos was prepared according to the process described in Example 8, but using various detergents.
• Shampoo 1 contained as detergent the lithium salt of lauroxy (4.5 E0) propionate, i.e. the compound RO-(CgH4O) CHg-CHzCOOLL wherein R was the residue of commercial lauryl alcohol (70% C12 d. 0 14 an! nhasiaitsvs ags t s of Shampoo 2 contained the ethylenediainine salt ofthe same propionate (i.e. a salt of a divalent nitrogen base).
• the lithium salt of lauroxy (4.5 E0) propionate i.e. the compound RO-(CgH4O) CHg-CHzCOOLL wherein R was the residue of commercial lauryl alcohol (70% C12 d. 0 14 an!
• nhasiaitsvs ags t s of Shampoo 2 contained the ethylenediainine salt ofthe same propionate (i.e. a salt of a divalent nitrogen base).
• Shampoo 3 contained as detergent decyl- (C H O ),,CH COOLi, wherein n had an average value of l.
• Shampoo 4 contained as detergent stearyl- (C H.,O),,CH COOLi, I. wherein n had an average value of 10.
• Shampoo 5 contained as detergent the compound lauryl-(C l-LO),,CH COOLi, wherein the lauryl residue was derived again from the commercial lauryl alcohol, and the value of n was 3.3 (narrow distribution). This is the same product as used in Example 8.
• Shampoo 6 contained the sodium salt corresponding to the lithium salt of shampoo 5.
• rug shampoos can of course be used in the present compositions.
• optical brighteners dyes, perfumes, propelling gases for aerosols, solvents, bactericides, fungicides, corrosion inhibitors (which may be necessary for treating carpets attached to metal parts) etc.
• Antistatic agents are often added to rug shampoos, but since the detergents used according to the present invention have good antistatic properties themselves, it is in general not necessary to add additional antistatic agents to the present compositions.
• a carpet shampoo composition in concentrate form consisting essentially of a detergent and a solid sorbent capable of yielding with the detergent a quick drying residue which takes up dirt, the improvement wherein said detergent is present in a range of 10 by weight and has the formula:
• R is a hydrophobic hydrocarbon residue of eight to 20 carbon atoms, which may contain one or more hydrophobic oxyalkylene units, n has an average value ofO- l0,xis l or 2, m is l or 2, and Misamonovalent or divalent cation.
• a carpet shampoo consisting essentially of 0.5 3O by weight of the composition of claim 1 and 99 70 by weight of water.
• n is 2 to 3 when R has less than 12 carbon atoms, and n is 5 to 8 when R has more than 15 carbon atoms.
• composition in accordance with claim 1 wherein said solid sorbent is selected from the group consisting of brittle artificial resins which are filmforming at temperatures above 50C, alumina, silica, bentonite and kieselguhr.
• carpet shampoo in aerosol form consisting essentially of a carpet shampoo composition and a propelling gas, the improvement wherein said carpet shampoo composition is the composition of claim 1.
• a method of shampooing rugs, carpets and upholstery fabrics comprising applying the composition of claim 2 to the fabric to be cleaned, rubbing said composition into said fabric, drying the so wetted fabric, and removing the solid residue remaining after drying.
• a method of shampooing rugs, carpets and upholstery fabrics comprising applying the composition of claim 8 to the fabric to be cleaned, rubbing said composition into said fabric, drying the so wetted fabric, and removing the solid residue remaining after drying.

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

Applications Claiming Priority (1)

Publications (1)

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Family Applications (1)

Country Status (6)

Cited By (16)

Families Citing this family (1)

Citations (4)

• 1970
  • 1970-11-06 GB GB5295970A patent/GB1337401A/en not_active Expired
• 1971
  • 1971-11-05 DE DE2155004A patent/DE2155004C3/de not_active Expired
  • 1971-11-05 NL NL717115310A patent/NL147186B/nl not_active IP Right Cessation
  • 1971-11-05 SE SE7114146A patent/SE392286B/xx unknown
  • 1971-11-05 US US00196215A patent/US3775052A/en not_active Expired - Lifetime
  • 1971-11-05 FR FR7139813A patent/FR2113639A5/fr not_active Expired

Patent Citations (4)

Non-Patent Citations (1)

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