EP0208745A1 - Compositions pour l'elimination de peinture et/ou de la rouille - Google Patents

Compositions pour l'elimination de peinture et/ou de la rouille

Info

Publication number
EP0208745A1
EP0208745A1 EP19860900715 EP86900715A EP0208745A1 EP 0208745 A1 EP0208745 A1 EP 0208745A1 EP 19860900715 EP19860900715 EP 19860900715 EP 86900715 A EP86900715 A EP 86900715A EP 0208745 A1 EP0208745 A1 EP 0208745A1
Authority
EP
European Patent Office
Prior art keywords
composition
composition according
weight
detergent
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Withdrawn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
EP19860900715
Other languages
German (de)
English (en)
Inventor
Jeremy George Mckenzie Frew
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.)
PROTECTIVE RESEARCH INDUSTRIES Ltd
Original Assignee
PROTECTIVE RESEARCH INDUSTRIES Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PROTECTIVE RESEARCH INDUSTRIES Ltd filed Critical PROTECTIVE RESEARCH INDUSTRIES Ltd
Publication of EP0208745A1 publication Critical patent/EP0208745A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/88—Ampholytes; Electroneutral compounds
    • C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
    • 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
    • C09D9/04—Chemical paint or ink removers with surface-active agents
    • 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
    • C11D3/43—Solvents

Definitions

  • the present invention relates to a paint and/or rust removal composition.
  • a composition which has been formed by producing an aqueous solution of sodium or potassium hydroxide containing from 20% by weight to saturation of the alkali metal hyrdroxide, adding to the solution of alkali metal hydroxide a balanced amphoteric detergent, adding to the resulting composition a liquid aromatic solvent and then adding to the resulting composition a liquid ethoxylated alcohol detergent in an amount sufficient to clarify the liquid composition.
  • the compositions of the present invention have been found particularly useful in removing paint from shipping containers.
  • the balance amphoteric detergent may be of a type sold under the Trade Mark “Miranol” by Miranol, Inc. In particular, it has been found that "Miranol” JEM or "Miranol” C2MSF are particularly effective.
  • the balance amphoteric detergent forms one half of a solubilising system of which the other half is the ethoxylated alcohol.
  • the balanced amphoteric detergents are very good solubilisers in higher pH systems.- Preferably, the balanced amphoteric detergent is used in an amount from 2-5% by weight of the composition.
  • an amount of glycol ether is incorporated in the composition after the addition of the balanced- amphoteric detergent since this helps to solubilise the balanced amphoteric detergent.
  • a suitable glycol ether is sold under the Trade Mark "DIOXITOL" by Shell Chemicals.
  • the glycol ether is preferably incorporated in the composition in an amount from 1 to 15% by weight more preferably from 2 to 3% by weight of the composition.
  • a rust complexing agent such as glutamic acid or EDTA, which is effective at high pH.
  • the rust complexing agent is preferably used in an amount from 2 to 15% by weight of the composition.
  • the rust complexing agent is preferably added after the balance amphoteric detergent and before the liquid aromatic solvent.
  • the liquid aromatic solvent is preferably mononuclear but it may be dinuclear. It is preferably a substituted aromatic compound.
  • the substituents are preferably alkyl groups containing from 1 to 6 carbon atoms, more preferably 1 or 2 carbon atoms.
  • the liquid aromatic ' solvent is preferably toluene or xylene.
  • the liquid aromatic solvent is preferably used in an amount from 0.9:1 to 1.1:1 based on the weight of alkali metal hydroxide.
  • the ethoxylated alcohol is preferably a 2 to 10 mole ethoxylated alcohol and is preferably used in an amount from 2 to 5% by weight of the composition.
  • the ethoxylated alcohol may have a branched chemical structure.
  • the composition of the present invention may be applied such as by spraying to the exterior of the articles such as shipping containers. It has been found that treatment for ⁇ '4 hour to 2 hours is typically enough to remove paint or rust and render a shipping container suitable for repainting. Each batch of the composition can also be used a plurality of times but in this case any solids are preferably filtered out. As mentioned above it is envisaged that the composition- could be used to clean the interior of shipping containers but it is envisaged that it would .probably be used in a diluted form in this case.
  • the present invention will now be illustrated by the following example.
  • a composition in accordance with the present invention was made from a saturated aqueous solution of OH containing 46% KOH by adding to it in order 2.4% by weight of the final composition of "Miranol” JEM, 10% by weight of the final composition of glutamic acid, 2.5% by weight of the final composition of "Dioxitol” glycol ether, an amount of toluene equal in weight to the KOH, and 3% by weight of the final composition of a 6 mole ehtoxylated alcohol detergent.
  • the resulting composition was applied to a corroded shipping container in a system as shown in the accompanying drawing which shows a shipping container 10 mounted above a catchment tray 12 which has an outlet leading to a reservoir 14.
  • the reservoir 14 is connected to a pump 16 which pumps compositions of the invention up to a spray 18.
  • the spray system was used to spray a container for about one hour by which time all rust and paint had been stripped off.
  • the steel surface of the container was ready for repriming and subsequent painting.
  • the used composition falls into the catchment tray 12 and then via a filter into the reservoir 14. It is then available for re-use.

Landscapes

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

Abstract

Composition détergente destinée notamment au nettoyage de conteneurs de transport, obtenue en formant une solution d'hydroxyde de sodium ou de potassium contenant de 20% en poids jusqu'à saturation d'hydroxyde de métal alcalin, en ajoutant à la solution d'hydroxyde métallique alcalin un détergent amphotérique équilibré, en ajoutant à la composition résultante un solvant aromatique liquide et en ajoutant enfin à cette solution un détergent à base d'alcool éthoxylé liquide en une quantité suffisante pour clarifier la composition liquide. De préférence dans la composition est incorporé également un agent de complexage de la rouille qui est efficace à un pH élevé.
EP19860900715 1985-01-15 1986-01-10 Compositions pour l'elimination de peinture et/ou de la rouille Withdrawn EP0208745A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU8880/85 1985-01-15
AU888085 1985-01-15

Publications (1)

Publication Number Publication Date
EP0208745A1 true EP0208745A1 (fr) 1987-01-21

Family

ID=3699593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860900715 Withdrawn EP0208745A1 (fr) 1985-01-15 1986-01-10 Compositions pour l'elimination de peinture et/ou de la rouille

Country Status (2)

Country Link
EP (1) EP0208745A1 (fr)
WO (1) WO1986004350A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414021A (en) * 1993-08-02 1995-05-09 General Electric Company Method for salvaging aromatic polycarbonate blend values
CN102433042B (zh) * 2011-08-18 2013-07-24 华阳新兴科技（天津）集团有限公司 一种无二氯甲烷环保型脱漆脱碳剂及其制备方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031409A (en) * 1958-10-27 1962-04-24 B T Babbitt Inc Aerosol oven cleanser
US3031408A (en) * 1959-08-07 1962-04-24 B T Babbitt Inc Aerosol oven cleanser
DE1280455B (de) * 1964-10-24 1968-10-17 Henkel & Cie Gmbh Hochalkalische, lagerstabile und schaumarme Flaschenreinigungsmittel
FR1482687A (fr) * 1965-12-28 1967-05-26 Glamorene Nouvelle composition alcaline de nettoyage
US3663447A (en) * 1968-10-01 1972-05-16 Hooker Chemical Corp Composition and process for stripping paint
DE1924332A1 (de) * 1969-05-13 1970-11-19 Henkel & Cie Gmbh Backofen- und Grillreiniger
NL151127B (nl) * 1970-02-13 1976-10-15 Stichting Bedrijven Van Het Werkwijze voor het reinigen van oppervlakken van warmtewisselaars en andere apparatuur die met minerale en/of organische stoffen bevattende, waterhoudende vloeistoffen in aanraking komen.
BE789084A (fr) * 1971-09-21 1973-03-21 Hoechst Ag Liqueur pour l'ajustement de bains de debouillissage de matieres textiles cellulosiques
FR2311090A1 (fr) * 1975-05-12 1976-12-10 Boehringer Sohn Ingelheim Produit dissolvant le goudron de fumee notamment pour le nettoyage de fumoirs
CA1083911A (fr) * 1976-12-13 1980-08-19 Thaddeus J. Kaniecki Detergent liquide et procede de fabrication de celui- ci
US4157921A (en) * 1978-02-13 1979-06-12 American Home Products Corporation Oven cleaning method and composition
US4477365A (en) * 1983-01-06 1984-10-16 Miles Laboratories, Inc. Caustic based aqueous cleaning composition

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8604350A1 *

Also Published As

Publication number Publication date
WO1986004350A1 (fr) 1986-07-31

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Inventor name: FREW, JEREMY, GEORGE, MCKENZIE