GB2269597A - Cleaning composition - Google Patents

Cleaning composition Download PDF

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Publication number
GB2269597A
GB2269597A GB9216535A GB9216535A GB2269597A GB 2269597 A GB2269597 A GB 2269597A GB 9216535 A GB9216535 A GB 9216535A GB 9216535 A GB9216535 A GB 9216535A GB 2269597 A GB2269597 A GB 2269597A
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United Kingdom
Prior art keywords
composition
weight
addition polymer
present
amount
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9216535A
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GB9216535D0 (en
Inventor
Hee Sun Kaw
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9216535A priority Critical patent/GB2269597A/en
Publication of GB9216535D0 publication Critical patent/GB9216535D0/en
Publication of GB2269597A publication Critical patent/GB2269597A/en
Withdrawn legal-status Critical Current

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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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/261—Alcohols; Phenols
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D9/00—Chemical paint or ink removers
    • 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
    • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
    • C11D3/3773—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3209—Amines or imines with one to four nitrogen atoms; Quaternized amines
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3272—Urea, guanidine or derivatives 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3281—Heterocyclic compounds
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5013—Organic solvents containing nitrogen
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5022—Organic solvents containing oxygen
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/263—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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/264—Aldehydes; Ketones; Acetals or ketals
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/266—Esters or carbonates
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen

Landscapes

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

Abstract

An aqueous composition for removing surface coatings comprises: an inverted addition polymer emulsion wherein the polymer has an average molecular weight of greater than one million and is finely divided particles; a surface tension modifying solvent, and an ammonia-liberating compound. Preferably the addition polymer is from 1 to 40% by weight of the total composition and is an acrylamide polymer.

Description

CLEANING COMPOSITION The present invention relates to a thixotropic composition for the removal of extraneous surface coatings.
There are at the present time, numerous chemicals and chemical compositions available for the removal of extraneous surface coatings such as grease, grime, dirt, carbon and paint. In most cases the efficiency of the removal of the surface coatings is determined by the strength and concentration of the chemicals involved. Invariably most of these chemicals or chemical compositions are solvent based and some include chlorinated or fluorinated hydrocarbons which are harmful to the earth's environment. Also, most such compositions suffer the disadvantage of a low viscosity similar to that of water. Furthermore, most of these solvent based compositions are associated with the problem of solvent evaporation.
Accordingly, the present invention provides an aqueous surface coating removal composition which comprises an inverted vinyl addition polymer emulsion wherein the addition polymer has an average molecular weight of greater than one million and is present in the emulsion as finely divided particles, a surface tension modifying solvent and an ammonia-liberating compound.
The inverted polymer emulsion is preferable present in an amount of from 1 to 40% by weight, more preferably 5 to 35% by weight, yet more preferably 10 to 30% by weight. It is preferred that the polymer of the emulsion has a particle size of from 5 nanometres to 5 micrometres, and that the emulsion contains from 5 to 75% by weight of the polymer particles.
Preferred inverted addition polymers for use in the present invention are sold as FLOERGER products (from SNF FLOERGER, France) and-NALCO products (from NALCO CHEMICAL COMPANY, U.S.A.).
The surface tension modify solvent in the composition is used to modifying the tension of the composition, preferably to lower the surface tension resulting in more easy spreadability of the composition. It has been found that the addition of a surface-tension modifying agent enables the composition to more easily penetrate the surface of the substrate to which it is applied. Generally, the surface-tension modifying agent should be included in an amount sufficient to lower the surface tension of the composition to a level where the composition will achieve the desired penetration into the surfaces to be removed.
The surface-tension modifying solvent is preferably present in an amount of from0.1% to 10% by weight of the total composition, more preferably 0.1% to 6% by weight, yet more preferably 0.2% to 4% by weight. Suitable solvents include: the glycols, such as ethylene glycol, propylene glycol or dipropylene glycol; glycol ethers such as 2-butoxy ethanol (e.g Butyl cellosolve) or diethylene glycol monobutyl ether (e.g Butyl carbitol); glycol ether esters; alcohols such as methanol, ethanol or propanol; ketones such as methyl ethyl ketone or methyl isobutyl ketone or mixtures of two or more thereof.
The ammonia-liberating compound is included to liberate a small amount of free ammonia and/or ammonium ions to allow the composition to provide a cleaning action on the surfaces of the substances to which the composition is applied.
The ammonia-liberating compound is preferably present in an amount of from 0.18 to 10% by weight of the total composition, more preferably 0.18 to 6% by weight, yet more preferably 0.2% to 4% by weight.
Suitable compounds for use as ammonia-liberating compounds include: mono-, di- and tri-functional amine compounds such as methylamine, ethylamine, ethylene diamine, propylene diamine, butyl diamine, hexamethylene diamine, cyclohexane diamine, piperazine, hydrazine, triethylamine or trimethylamine; other mono-, di- and tri-amine compounds; ammonia solution; ammonium compounds such as ammonium sulphate, ammonium chloride or ammonium nitrate; and naturally occurring compounds such as urea and biuret.
A film-forming solvent may also be included in the composition to modify and form a film when the composition is applied to surfaces. It is preferred to add a film-forming solvent as this enables the composition to remain as a coherent layer when applied.
The film-forming solvent is preferably present in an amount of from 0.1% to 10% by weight of the total composition, more preferably 0.1% to 6% by weight, yet more preferably 0.2% to 4% by weight.
Suitable solvents for use as film-forming solvents are pyrrolidone-type solvents, in particular N-methyl-2-pyrrolidone.
In addition, alkali may be included in the composition. The alkali is used to modify the pH of the composition. It has been found that it is preferred to add such an alkali as this enables the composition to more easily break and clean the surfaces of the substrates when the composition is applied onto surfaces containing the extraneous surface coatings.
The alkali is preferably present in an amount of from 0.1% to 30% by weight of the total composition, more preferably 1% to 20%, yet more preferably 3% to 15%.
Generally the alkali should be included in an amount sufficient to raise the pH of the composition to a level more alkaline than pH 7, preferably to a pH of from 8 to 14, more preferably to a pH of from 10 to 12.
Suitable pH adjusting-compounds for use as an alkali for inclusion in the composition include potassium hydroxide, sodium hydroxide and calcium hydroxide.
In addition, a dispersing medium may be included in the composition. The dispersing medium is preferably water. The amount of medium to be included in the composition is preferably from 1% to 99% by weight based on the total composition, more preferably 20% to 98%, yet more preferably 50% to 95%.
The composition is preferably prepared by mixing the various components into the dispersing medium.
Preferably, the components specified, when included in the composition, are added to the dispersing medium in the following sequence; alkali; ammonia-liberating compound; surface-tension modifying solvent; inverted polymer emulsion.
In addition, the following standard components as known in the art may be included in the composition; pigments, biocides, fungicides, perfumes and preservatives. Such components are preferably the last components to be added.
The composition is useful in removing extraneous surface coatings comprising grime, grease, dirt, carbon deposits and oil or alkyd-based paints. These extraneous surface coatings may be present on various surfaces including wood, concrete, brick, marble, cement, plastics, fibreglass, metals and metal alloys. The composition works well on all surfaces including those which are rough, smooth, pitted, contoured or porous. The thixotropic nature of the composition enables extraneous surface coatings to be removed from horizontal, vertical or inverted surfaces.
The composition may be applied to surfaces by means of brushing, by rollers or by simple spray equipment, in one or more layers of application.
The present invention will now be further illustrated with reference to the following example: Example A composition was prepared by sequentially mixing the following components into water: % by weight Potassium hydroxide 7% Urea 2% N-methyl-2-pyrrolidone 2% 2-butoxy ethanol 2% FLOERGER polymer emulsion 15%

Claims (27)

CLAIMS:
1. An aqueous composition for removing surface coatings which composition comprises: an inverted vinyl addition polymer emulsion wherein the addition polymer has an average molecular weight of greater than one million and is present in the emulsion as finely divided particles; a surface tension modifying solvent, and an ammonia-liberating compound.
2. A composition as claimed in claim 1 wherein the inverted vinyl addition polymer emulsion is present in an amount of from 1 to 40% by weight of the total composition.
3. A composition as claimed in claim 1 or claim 2 wherein the inverted addition polymer emulsion is an acrylamide polymer emulsion.
4. A composition as claimed in any one of claims 1 to 3 wherein the average particle size of the addition polymer is from 5 nanometres to 5 micrometres.
5. A composition as claimed in any one of claims 1 to 4 wherein the inverted addition polymer emulsion contains from 5 to 75% by weight of finely divided addition polymer particles.
6. A composition as claimed in any one of claims 1 to 5 wherein the addition polymer is Floerger or Nalco.
7. A composition as claimed in any one of claims 1 to 6 wherein the surface tension modifying solvent is present in an amount of from 0.1 to 10% by weight.
8. A composition as claimed in any one of claims 1 to 7 wherein the surface tension modifying solvent is a glycol, a glycol ether, a glycol ester, an alcohol, a ketone, or a mixture of two or more thereof.
9. A composition as claimed in any one of claims 1 to 8 wherein the ammonia liberating compound is present in an amount of from 0.1 to 10% by weight.
10. A composition as claimed in any one of claims 1 to 9 wherein the ammonia liberating compound is a mono-, di- or tri-functional amine compound, ammonia solution, an ammonium compound, urea, biuret or a mixture of two or more thereof.
11. A composition as claimed in any one of the preceding claims which further includes a film-forming solvent.
12. A composition as claimed in claim 11 wherein the film-forming solvent is present in an amount of from 0.1 to 10% by weight.
13. A composition as claimed in any one of claims 11 to 12 wherein the film-forming solvent is a pyrrolidone.
14. A composition as claimed in any one of claims 11 to 13 wherein the film-forming solvent is N-methyl-2-pyrrolidone.
15. A composition as claimed in any one of claims 1 to 14 which further includes an alkali.
16. A composition as claimed in claim 15 wherein the alkali is present in an amount of from 0.1 to 30% by weight.
17. A composition as claimed in any one of claims 15 or 16 to 27 wherein the alkali is present in an amount sufficient to raise the pH of the composition above pH 7.
18. A composition as claimed in any one of claims 1 to 17 wherein the alkali is potassium hydroxide, sodium hydroxide, or calcium hydroxide.
19. An aqueous surface coating removal composition as claimed in any one of claims 1 to 18 which further includes a dispersing medium.
20. A composition as claimed in claim 19 wherein the dispersing medium is water.
21. A composition as claimed in claim 19 or claim 20 wherein the dispersing medium is present in an amount of from 1 to 99% by weight of the composition.
22. A composition as claimed in any one of claims 1 to 21 which further includes colouring pigment, biocide, fungicide, perfume, preservative or mixture of two or more thereof.
23. The use of a composition such composition as claimed in any one of claims 1 to 22 for the removal of extraneous surface coatings.
24. The use of a composition as claimed in any one of claims 1 to 22 for use in cleaning extraneous surface deposits of grease, dirt, carbon, oil, alkyd-based paints or mixtures of two or more thereof.
25. The use of a composition as claimed in claim 22 in cleaning extraneous surface deposits from surfaces of wood, concrete, brick, marble, cement, plastics, fibreglass, metals or metal alloys.
26. A method of making a composition as claimed in any one of claims 1 to 10 comprising mixing the following components in sequential order: 1) an inverted vinyl addition polymer emulsion wherein the addition polymer has an average molecular weight of greater than one million and is present in the emulsion as finely divided particles; 2) a surface tension modifying solvent; 3) an ammonia-liberating compound.
27. An aqueous surface coating composition substantially as described herein in the example.
GB9216535A 1992-08-04 1992-08-04 Cleaning composition Withdrawn GB2269597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9216535A GB2269597A (en) 1992-08-04 1992-08-04 Cleaning composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9216535A GB2269597A (en) 1992-08-04 1992-08-04 Cleaning composition

Publications (2)

Publication Number Publication Date
GB9216535D0 GB9216535D0 (en) 1992-09-16
GB2269597A true GB2269597A (en) 1994-02-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0712911A3 (en) * 1994-11-17 1997-10-01 Atochem North America Elf Ammonium bicarbonate/ammonium carbamate activated benzyl alcohol paint stripper
WO2004022658A1 (en) * 2002-09-06 2004-03-18 Basf Corporation Method of removing coatings from plastic articles

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB680207A (en) * 1949-02-24 1952-10-01 Gekah Ets Improved cleaning product and method for its manufacture
GB1073462A (en) * 1963-05-23 1967-06-28 Nippon Comb Chemicals Mfg Co L A new cleaning solution
GB1495549A (en) * 1974-04-17 1977-12-21 Procter & Gamble Scouring compositions
GB1534815A (en) * 1976-04-29 1978-12-06 Henkel Kgaa Cleaning compositions
GB2009221A (en) * 1977-11-28 1979-06-13 Kao Corp Liquid cleanser composition
GB2180847A (en) * 1985-09-24 1987-04-08 Procter & Gamble Liquid scouring cleansers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB680207A (en) * 1949-02-24 1952-10-01 Gekah Ets Improved cleaning product and method for its manufacture
GB1073462A (en) * 1963-05-23 1967-06-28 Nippon Comb Chemicals Mfg Co L A new cleaning solution
GB1495549A (en) * 1974-04-17 1977-12-21 Procter & Gamble Scouring compositions
GB1534815A (en) * 1976-04-29 1978-12-06 Henkel Kgaa Cleaning compositions
GB2009221A (en) * 1977-11-28 1979-06-13 Kao Corp Liquid cleanser composition
GB2180847A (en) * 1985-09-24 1987-04-08 Procter & Gamble Liquid scouring cleansers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0712911A3 (en) * 1994-11-17 1997-10-01 Atochem North America Elf Ammonium bicarbonate/ammonium carbamate activated benzyl alcohol paint stripper
CN1054873C (en) * 1994-11-17 2000-07-26 北美埃尔夫爱托化学股份有限公司 Ammonium bicarbonate/ammonium carbamate activated benzyl alcohol paint stripper
WO2004022658A1 (en) * 2002-09-06 2004-03-18 Basf Corporation Method of removing coatings from plastic articles

Also Published As

Publication number Publication date
GB9216535D0 (en) 1992-09-16

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