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
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2068—Ethers
• • 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
  • C11D1/37—Mixtures of compounds all of which are anionic
• • 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
  • C11D3/16—Organic compounds
  • C11D3/26—Organic compounds containing nitrogen
  • C11D3/33—Amino carboxylic acids
• • 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
  • C11D3/37—Polymers
  • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
  • C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid 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
  • C11D1/004—Surface-active compounds containing F
• • 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
  • C11D1/004—Surface-active compounds containing F
  • C11D1/006—Surface-active compounds containing fluorine and phosphorus
• • 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

Definitions

• This invention relates to cleaning compositions particularly useful in removing stains from rugs, carpets, and textiles.
• a wide variety of carpet cleaning and anti-soiling compositions are available for do-it-yourself carpet cleaning. Fluorochemical compounds have been described in the prior art as useful in treating textiles, such as carpets, to impart oil and water repellency and soil resistance. Although these compositions have found commercial success, there is a continuing need for alternative formulations offering an increased cleaning potential for a variety of stains, particularly oily stains. In formulating a new carpet cleaning composition, it is particularly challenging to impart a new property into an existing composition without destroying other worthwhile properties of the composition.
• an aqueous cleaning composition having a pH level falling within a range of from 4 to 9.5 comprising:
• the inventive composition is stable and is particularly effective in removing a variety of stains from carpeting without contributing to undesirable properties commonly associated with carpet cleaning compositions.
• One particular group of stains that may be substantially removed from textiles using the inventive composition are oily stains.
• the inventive composition is useful in cleaning textiles as well as rugs and carpets. Additionally, prevention of resoiling and stain and dirt repellency are observed as attributes of the composition.
• the sodium lauryl sulfate component is widely available commercially. Preferably it is employed in a range of 0.75% to 1.15% by weight, more preferably 0.8% to 1% by weight, and most preferably from 0.85% to 0.9% by weight % (active ingredient), with all weight percentages herein based on the total weight of the composition.
• the ethylene glycol monohexyl ether is also widely available and is preferably employed within a range of from 0.65% to 0.85% by weight, more preferably from 0.7% to 0.8% by weight, and most preferably about 0.75% by weight (active ingredient).
• the fluorinated surfactant acts primarily as an anti-soiling and anti-staining agent and is a mixture of Formula I and II, where Formula I is: F(CF2) n -CH2CH2-S-CH2CH2-COOLi I wherein n is an integer having a value of 6 to 12 and may be identified as an ⁇ - ⁇ 2-[(2-carboxyethyl)thio]ethyl ⁇ - ⁇ -fluoro-poly(difluoromethylene) lithium salt, and where Formula II is a diethanolamine salt of a perfluoroalkyl phosphate as represented by the general formula: wherein n is an integer having a value of 6 to 12.
• the weight-ratio of the perfluoropropionate of Formula I to the perfluoroalkyl phosphate of Formula II in the mixture is in the range of from 1:1 to 1:2, and the amount of the mixture employed in the composition is from 0.025% to 0.17% by weight, more preferably from 0.1% to 0.15% by weight, most preferably about 0.1% by weight (active ingredient).
• a mixture may be purchased from E.I. DuPont de Nemours & Co., Inc. under the chemical name ZONYLTM 7950.
• the composition also contains a carboxylated polymer salt, preferably a styrene maleic anhydride polymer, available commercially such as, for example, ZELANTM338, from E. I. DuPont de Nemours & Co., Inc. This ingredient is preferably employed in an amount from 0.025% to 0.05% by weight, and most preferably from 0.03% to 0.04% by weight (active ingredient).
• the chelating agent(s) used are preferably aminopolycarboxylic acid compounds in which the amino nitrogen has attached thereto two or more substituent groups.
• Preferred are the acids and potassium or sodium salts of ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), and N-hydroxyethylethylenediaminetriacetic acid (HEDTA) and mixtures thereof.
• EDTA ethylenediaminetetraacetic acid
• DTPA diethylenetriaminepentaacetic acid
• HEDTA N-hydroxyethylethylenediaminetriacetic acid
• Most preferred is tetrasodium ethylenediaminetetraacetate (Na4EDTA).
• the chelating agent is used in an amount ranging from 0.3% to 0.45% by weight, more preferably from 0.35% to 0.4% by weight, and most preferably from 0.37% to 0.39% by weight (active ingredient).
• compositions of the invention may include optional ingredients for performing specifically desired functions such as sequestrates, e.g., citric acid, sodium hexametaphosphate, and the like; organic liquid solvents for water-soluble stains, e.g., monohydric aliphatic alcohols having 1 to 6 carbon atoms; corrosion inhibitors, such as, citric acid, formaldehyde (formalin), sodium citrate, sodium nitrate, ammonia, and so on; preservatives, such as methyl- and ethylparaben, 1,2-benzoisothiazole-3(2H)-ones (including the preservative KATHONTMCG-ICP, available from Rohm and Haas).
• sequestrates e.g., citric acid, sodium hexametaphosphate, and the like
• organic liquid solvents for water-soluble stains e.g., monohydric aliphatic alcohols having 1 to 6 carbon atoms
• corrosion inhibitors such as, citric
• compositions of the invention are preferably formulated as aqueous solutions or emulsions and can be dispensed for use as liquids using conventional dispensing devices such as squeeze bottles fitted with a suitable dispensing nozzle or containers fitted with trigger spray pumps which are well known in the art.
• the pH of the aqueous compositions of the invention preferably falls within a range of from 4 to 9.5, more preferably from 5 to 8, and most preferably between 6 and 7. If the composition requires an pH adjustment to fall within this range, known pH adjusting agents may be employed.
• the composition may be prepared using conventional techniques known to those skilled in the art.
• the composition is a substantially clear liquid having the viscosity similar to that of water and may be stored as a stable liquid for extended periods.
• carpets are cleaned by applying the composition directly on the carpet, by spraying for example, followed by rubbing the sprayed area with a suitable device, such as, for example, a clean damp cloth or sponge mop, with rinsing of the device until the stain or soil is removed.
• a suitable device such as, for example, a clean damp cloth or sponge mop, with rinsing of the device until the stain or soil is removed.
• Textiles may also be cleaned by the composition in a similar manner.
• composition of the invention is illustrated by the following examples of specific formulations without, however, being limited thereto.
• Formulas A-C were prepared by techniques familiar to those skilled in the art using ingredients as shown in the Tables. Formulas A-C were each tested for stability for 6 weeks at room temperature, 105°F., 120°F. and 40°F. Additionally, the formulas were subjected to a freeze-thaw test for 3 cycles (thaw for 24 hours after freezing). All tests results for Formulas A-C showed the formulas as stable.
• FORMULA A COMPONENT WT% Water q.s. Sodium lauryl sulfate a. (29%) 3 Ethylene glycol monohexyl ether b. 0.75 Isopropyl Alcohol 2 Fluorinated Surfactant (25%) c.
• ZONYLTM 7950 a 10-15% mixture of a perfluoropropionate of Formula I herein; 15-20% of a mixture of perfluoroalkyl phosphates of Formula II herein (the perfluoroalkyl phosphate salts are obtained by neutralization of the corresponding acid with diethanolamine); 5-10% trichlorotrifluoroethane; 25-30% isopropyl alcohol; 35-40% water - manufactured by E. I. DuPont de Nemours Co., Inc., active ingredient 0.1 wt.%. d. ZELANTM 338, a styrene maleic anhydride polymer - manufactured by E. I. DuPont de Nemours Co., Inc., active ingredient 0.0375 wt.%. e. Active Ingredient 0.38 wt.%. f. KATHANTMCG-ICP, active ingredient 0.00075 wt.%.
• HEXYL CELLOSOLVETM manufactured by Union Carbide Company.
• ZONYLTM 7950 a 10-15% mixture of a perfluoropropionate of Formula I herein; 15-20% of a mixture of perfluoroalkyl phosphates of Formula II herein (the perfluoroalkyl phosphate salts are obtained by neutralization of the corresponding acid with diethanolamine); 5-10% trichlorotrifluoroethane; 25-30% isopropyl alcohol; 35-40% water - manufactured by E. I. DuPont de Nemours Co., Inc., active ingredient 0.125 wt.%. d.
• ZELANTM 338 a styrene maleic anhydride polymer - manufactured by E. I. DuPont de Nemours Co., Inc., active ingredient 0.075 wt.%. e. Active Ingredient 0.38 wt.%. f. KATHONTMCG-ICP, active ingredient 0.0012 wt.%.
• HEXYL CELLOSOLVETM manufactured by Union Carbide Company.
• ZONYLTM 7950 a 10-15% mixture of a perfluoropropionate of Formula I herein; 15-20% of a mixture of perfluoroalkyl phosphates of Formula II herein (the perfluoroalkyl phosphate salts are obtained by neutralization of the corresponding acid with diethanolamine); 5-10% trichlorotrifluoroethane; 25-30% isopropyl alcohol; 35-40% water - manufactured by E. I. DuPont de Nemours Co., Inc., active ingredient 0.125 wt.%. d.
• ZELANTM 338 a styrene maleic anhydride polymer - manufactured by E. I. DuPont de Nemours Co., Inc., active ingredient 0.0375 wt.%. e. Active Ingredient 0.38 wt.%. f. KATHONTMCG-ICP, active ingredient 0.0012 wt.%.
• Table I illustrates the panel results. Out of 21 people paneled, the number of people who gave a response 'yes' to the question on whether the carpet appeared damaged. As employed throughout the examples, when the data is analyzed using the "Chi Square method" (as described in Statistical Analysis (2nd Edition) by Samuel B. Richmond, The Ronald Press Co., New York, 1964, p. 290-303) at a 95% confidence level, 15 panelists for each product tested per carpet would have had to give a 'yes' response for there to be any significance between the products tested. As shown by the data, at most only one panelist saw a difference with the carpet cleaned by Formula A.
• ⁇ E represents the difference in reflected light between the carpets cleaned with product, and a virgin piece of the same carpet. This value has been corrected for any carpet fiber change by rubbing. A ⁇ E value less than 2.0 is usually undetected by the human eye.
• feline malodor with Formula A was tested as follows. Two Philadelphia: MAINSTREET Cotton Seed carpet samples were stained with 2 g of cat urine obtained by Buckshire Labs, Perkosie, Pennsylvania. One carpet sample was left as the control. One of the carpet samples was then cleaned with 25 g of Formula A by spraying the composition on the carpet and then allowing it to set for 10 minutes. The carpet cleaned was then blotted with white paper towel until the visual stain was gone. The carpet was then dried overnight and subjected to fifteen (15) panelists thereafter. The panel was asked the question: "Is the pet stain removed?" The fifteen (15) panelists responded 'yes' the stain was removed, providing a 95% confidence level (using the Chi-Square method).
• Each of the carpets were cut into 12" x 12" pieces. Each carpet piece was treated with 16.6 grams of Formula A and rubbed into the carpet with white paper towel for approximately 50 strokes. The carpets were then allowed to dry overnight. Twenty (20) people were paneled, asking them the following question: "Is the carpet soft, not sticky?"
• Table III illustrates the panel results.
• the table shows out of twenty (20) people paneled, how many gave a response of 'yes' to the question asked.

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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)
• Detergent Compositions (AREA)
• Air-Conditioning For Vehicles (AREA)

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• 1994
  • 1994-10-13 EP EP94202969A patent/EP0648834B1/de not_active Expired - Lifetime
  • 1994-10-13 DE DE69424492T patent/DE69424492T2/de not_active Expired - Fee Related
  • 1994-10-13 AT AT94202969T patent/ATE193052T1/de not_active IP Right Cessation
  • 1994-10-18 AU AU75865/94A patent/AU675350B2/en not_active Ceased

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