FR2671093A1 - Chemical process for stripping paints and varnishes - Google Patents

Chemical process for stripping paints and varnishes Download PDF

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Publication number
FR2671093A1
FR2671093A1 FR9016289A FR9016289A FR2671093A1 FR 2671093 A1 FR2671093 A1 FR 2671093A1 FR 9016289 A FR9016289 A FR 9016289A FR 9016289 A FR9016289 A FR 9016289A FR 2671093 A1 FR2671093 A1 FR 2671093A1
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France
Prior art keywords
varnishes
chemical process
stripping
paints
stripping paints
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.)
Pending
Application number
FR9016289A
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French (fr)
Inventor
Januszewski Paul
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
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 Individual filed Critical Individual
Priority to FR9016289A priority Critical patent/FR2671093A1/en
Publication of FR2671093A1 publication Critical patent/FR2671093A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C09D9/005—Chemical paint or ink removers containing organic solvents
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

New chemical formulation permitting the stripping of resinous coatings, this being done by physical action rather than by chemical action.

Description

La présente invention concerne en un procedé physicocimique permettant le décapage des peintures et vernis et autres revêtements polymérisés. The present invention relates to a physico-physical process for the stripping of paints and varnishes and other polymerized coatings.

Les procedés actuelements utilisés agissent par dissolution des revetements dans la solution chimique, d'ou une rapide déterio ration des bains. The processes currently used act by dissolving the coatings in the chemical solution, resulting in rapid deterioration of the baths.

La présente invention remedie à cet inconvénient.The present invention remedies this drawback.

En effet la formule chimique proposée agit par migration physique des solvants au travers des membranes et provoque un décollement suivant la relation:

Figure img00010001
In fact, the chemical formula proposed acts by physical migration of the solvents through the membranes and causes detachment according to the relationship:
Figure img00010001

V = Vitesse de migration du solvant. V = Rate of migration of the solvent.

= Coefficient de porosité de la membrane
N = lasse moléculaire des solvants.= Coefficient of porosity of the membrane
N = molecular fatigue of solvents.

La méthode pratique consiste à immerger dans le liquide les pièces à traiter.The practical method is to immerse the parts to be treated in the liquid.

Le temps de traitement est variable suivant l'épaisseur du revêtement . The treatment time is variable depending on the thickness of the coating.

La formule chimi-ue agit à la température ambiante et s'active en fonction de l'élévation de la température.The chemi-ue formula acts at room temperature and activates depending on the rise in temperature.

La formule ainsi élaborée agit par migration au travers des membranes,une fois le support atteint,le revetement se trouve totalement décollé. The formula thus worked out acts by migration through the membranes, once the support is reached, the coating is completely peeled off.

La formule chimi-ue comporte au moins trois composants de base rlui s ont:
Un solvant chloré,un acide,et un mouillant.The chemical formula has at least three basic components that have:
A chlorinated solvent, an acid, and a wetting agent.

Exemple de formule:
Chlorure de méthylène,plus acide trichloracetique, plus alkylary] sulfonate de sodium.Example of formula:
Methylene chloride, plus trichloroacetic acid, plus sodium alkylary] sulfonate.

La porosité augmente sous 1'action acide,ce ui provoçu une plus grande vitesse de migration des solvants.  The porosity increases under the acid action, which results in a faster migration speed of the solvents.

Claims (1)

REVENDICATION CLAIM Procédé physicochimioue de décapage au trempé des peintures et vernis.Physicochemical process of pickling by dipping paints and varnishes. La formule chimique du mélange se compose de:The chemical formula of the mixture consists of: CHLORURE DE bfETXYLENE BfETXYLENE CHLORIDE ACIDE TRICHLORACETIQUETRICHLORACETIC ACID ALKYLARYLSULFONATE DE SODIUM.SODIUM ALKYLARYLSULFONATE. Cette composition agit en augmentant la porosité des résines,et par osmose provoque le décollement sans dissoudre This composition acts by increasing the porosity of the resins, and by osmosis causes detachment without dissolving
FR9016289A 1990-12-27 1990-12-27 Chemical process for stripping paints and varnishes Pending FR2671093A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9016289A FR2671093A1 (en) 1990-12-27 1990-12-27 Chemical process for stripping paints and varnishes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9016289A FR2671093A1 (en) 1990-12-27 1990-12-27 Chemical process for stripping paints and varnishes

Publications (1)

Publication Number Publication Date
FR2671093A1 true FR2671093A1 (en) 1992-07-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9016289A Pending FR2671093A1 (en) 1990-12-27 1990-12-27 Chemical process for stripping paints and varnishes

Country Status (1)

Country Link
FR (1) FR2671093A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072579A (en) * 1959-10-28 1963-01-08 Kenneth W Newman Method of removing epoxy, silicone and melamine coatings
US3232881A (en) * 1962-05-11 1966-02-01 Pittsburgh Plate Glass Co Method for removing cured amide interpolymer resins
US3813309A (en) * 1969-12-23 1974-05-28 Ibm Method for stripping resists from substrates
EP0095171A2 (en) * 1982-05-24 1983-11-30 Daikin Kogyo Co., Ltd. Composition for cleaning surface of substrate
EP0195969A2 (en) * 1985-03-08 1986-10-01 MONTEDIPE S.r.l. Process for the removal of paints
US4726848A (en) * 1980-09-08 1988-02-23 Parker Chemical Company Chlorinated hydrocarbon protective and/or decorative coating stripping composition and method
GB2199337A (en) * 1986-12-19 1988-07-06 Pyrene Chemical Services Ltd Paint stripper composition

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3072579A (en) * 1959-10-28 1963-01-08 Kenneth W Newman Method of removing epoxy, silicone and melamine coatings
US3232881A (en) * 1962-05-11 1966-02-01 Pittsburgh Plate Glass Co Method for removing cured amide interpolymer resins
US3813309A (en) * 1969-12-23 1974-05-28 Ibm Method for stripping resists from substrates
US4726848A (en) * 1980-09-08 1988-02-23 Parker Chemical Company Chlorinated hydrocarbon protective and/or decorative coating stripping composition and method
EP0095171A2 (en) * 1982-05-24 1983-11-30 Daikin Kogyo Co., Ltd. Composition for cleaning surface of substrate
EP0195969A2 (en) * 1985-03-08 1986-10-01 MONTEDIPE S.r.l. Process for the removal of paints
GB2199337A (en) * 1986-12-19 1988-07-06 Pyrene Chemical Services Ltd Paint stripper composition

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