EP0445216A1 - Revetement temporaire pour cabines de peinture au pistolet - Google Patents

Revetement temporaire pour cabines de peinture au pistolet

Info

Publication number
EP0445216A1
EP0445216A1 EP90900806A EP90900806A EP0445216A1 EP 0445216 A1 EP0445216 A1 EP 0445216A1 EP 90900806 A EP90900806 A EP 90900806A EP 90900806 A EP90900806 A EP 90900806A EP 0445216 A1 EP0445216 A1 EP 0445216A1
Authority
EP
European Patent Office
Prior art keywords
amino groups
aqueous
copolymers
weight
vinylpyridine
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
EP90900806A
Other languages
German (de)
English (en)
Inventor
Ludwig Schieferstein
Jürgen Geke
Joachim Conradi
Dieter Meyer
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0445216A1 publication Critical patent/EP0445216A1/fr
Pending legal-status Critical Current

Links

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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B08B17/02—Preventing deposition of fouling or of dust
    • B08B17/04—Preventing deposition of fouling or of dust by using removable coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • B05D1/322—Removable films used as masks
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/24—Homopolymers or copolymers of amides or imides
    • 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
    • C09D139/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Coating compositions based on derivatives of such polymers
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/008—Temporary coatings

Definitions

  • the invention relates to the use of clear water-soluble, cation group-containing polymers in neutral to weakly acidic, aqueous, liquid formulations which are capable of forming a continuous film at ambient temperatures for the temporary coating of paint booths before the start of a new working cycle with the aim of to be able to easily remove lacquer layer formed from the overspray during the following working cycle by loosening the intermediate layer formed from the polymers according to the invention.
  • US Pat. No. 3,476,575 also discloses hot water-soluble temporary spray booth coatings made from surfactant-containing terpene / hydrocarbon mixtures.
  • the object of the present invention is to provide a coherent, flexible and copolymers forming protective films which are not very sensitive to moisture in a neutral, possibly weakly acidic, aqueous solution which can easily be removed by water in the above-mentioned use if required.
  • the invention relates to the use of copolymers containing amino groups, obtained by copolymerizing, in each case based on copolymer,
  • amino groups of the copolymers are optionally completely or partially neutralized or quaternized, in aqueous clear-water-soluble preparation as a temporary coating in painting booths.
  • copolymers containing amino groups to be used according to the invention are known as such as coating material for tablets from DE-A 2 135 073, to the content of which reference is made.
  • nitrogen-free monomers to be used according to the invention for the production of the copolymers containing amino groups the following can be mentioned in particular: alpha, beta-unsaturated mono- and dicarboxylic acids, in particular acrylic acid, methacrylic acid, crotonic acid, itaconic acid, maleic acid and fumaric acid including esters thereof, z. B.
  • acrylic acid alkyl esters methacrylic acid alkyl esters, hydroxyethyl acrylate and methacrylate, beta-hydroxypropyl acrylate and - ethacrylate, beta-hydroxybutyl acrylate and methacrylate, gamma-hydroxybutyl acrylate and methacrylate, glycerol monoacrylate and methacrylate, ethylene glycol monoacrylate; furthermore vinyl esters, in particular vinyl acetate, and vinyl ethers and styrene (optionally in a mixture with butadiene), alpha-methylstyrene, vinyl toluene and the like.
  • nitrogen-free monomers are esters of acrylic or methacrylic acid with C 1 -C 4 -monoalcohols, for. B. the methyl, ethyl, propyl and butyl esters, optionally in a mixture with acrylic and / or methacrylic acid.
  • the aforementioned monomers can be used individually or in a mixture.
  • the polymer expert is familiar with the linearly polymerizable monomers to be used according to the invention and containing at least one tertiary amino function. Typical representatives are dialkylamino alkyl esters of acrylic, methacrylic, maleic, itaconic and fumaric acid.
  • esters of acrylic or methacrylic acid having in particular a tertiary amino function ⁇ having C2-Cs-monoalcohols such as dimethyl aminoethyl acrylate and methacrylate, diethylaminoethyl acrylate and methacrylate, dipropylaminoethyl acrylate and methacrylate, dibutylaminoethyl acrylate and methacrylate, 2- (dimethylamino) - propyl acrylate and methacrylate, 2- (diethylamino) butyl acrylate and - ethyl acrylate, dimethylaminoneopentyl acrylate and methyl acrylate and the like.
  • a tertiary amino function ⁇ having C2-Cs-monoalcohols such as dimethyl aminoethyl acrylate and methacrylate, diethylaminoethyl acrylate and methacrylate, dipropylaminoethy
  • the analog diethylamino compounds can also be used in the same way.
  • Other suitable monomers containing amino groups are 2-vinylpyridine or 4-vinylpyridine and the substituted diallylamines.
  • the aforementioned monomers can be used individually or in a mixture.
  • nitrogen-free monomers so that they are at least partially water-soluble in order to obtain, if desired, clear-water-soluble preparations .
  • An at least partially water-soluble comonomer is, for example, the methyl ester of acrylic acid (methyl acrylate).
  • the expert is also familiar with the selection of the monomers for the preparation of completely water-soluble comonomers.
  • the copolymers containing amino groups have glass transition temperatures (Tg) of from -30 to +50 ° C.
  • Tg glass transition temperatures
  • the setting of a corresponding glass transition temperature by selection of suitable comonomer compositions and / or polymerization conditions is a measure familiar to the person skilled in the polymer.
  • the aqueous clear water-soluble preparations contain the copolymers containing amino groups in an amount of 5 to 75, in particular 15 to 50% by weight, based on the total weight of the preparation. For on-site use, these can be diluted to very low concentrations.
  • the desired layer thickness in the coating of the paint booth determines the concentration of the comonomers in the aqueous preparation, which can optionally be 1% by weight, based on the total weight of the preparation.
  • Clear water-soluble preparations can be obtained by adding as much acid to an aqueous dispersion of the copolymers and thereby neutralizing the copolymers, ie the amino groups of the same are neutralized until a clear preparation results.
  • the amount of acid required for this depends on the type and composition of the copolymer.
  • the clear phase generally sets in when only part of the amino function is neutralized; however, it is of course also possible to neutralize all amino functions.
  • the usual, physiologically acceptable, inorganic and / or organic acids such as sulfuric acid, hydrochloric acid, phosphoric acid, formic acid, acetic acid and the like are suitable for the neutralization. Phosphoric acid and formic acid and / or acetic acid are particularly preferred.
  • the amino groups of the copolymers can also be quaternized with conventional alkylating agents, in particular methyl iodide, to obtain clear-water-soluble, aqueous preparations.
  • conventional alkylating agents in particular methyl iodide
  • the invention is further directed to aqueous, clear water-soluble preparations which contain 5 to 75% by weight, based on total weight, of copolymers containing amino groups, obtained by copolymerization, in each case based on copolymer, of
  • the present invention relates to aqueous preparations for coating paint booths, containing in particular 15 to 50% by weight, based on the total weight of the preparation, of copolymers containing amino groups, obtained by copolymerization of, in each case based on copolymer
  • amino groups of the copolymers are optionally completely or partially neutralized or quaternized.
  • the copolymers are completely or partially quaternized using phosphoric acid. This neutralization has an extremely corrosion-inhibiting effect on the aqueous preparations.
  • regulators when building the copolymers.
  • Suitable regulators are thioglycolic acid or mercaptoethanol and generally ionic crosslinking agents such as polyfunctional carboxylic acids, for example dicarbonyl acids with 2 to 10 carbon atoms.
  • the proportion of controllers should not exceed 2%. In many cases, additions of 0.5 or 0.1% and sometimes even smaller amounts are sufficient to reduce the viscosity. It should only be noted that increased amounts of regulators can impair the adhesion.
  • aqueous preparations of the invention may also contain conventional additives such as preservatives, dyes and the like.
  • aqueous preparations of the invention can be prepared by methods known per se. It is only necessary to ensure that the molecular weight of the copolymers does not fall below 10,000, preferably 30,000, since otherwise the adhesive properties could be impaired.
  • aqueous preparations of the invention are prepared, for example, by polymerization in aqueous solution before or after the addition of the neutralizing or quartering agent. If the comonomers of the aqueous monomer solution are not soluble, it is also possible to work in the manner of a precipitation polymerization in a non-solvent; the material obtained by precipitation polymerization can then be dissolved in an aqueous solution which may contain the neutralizing or quaternizing agent. Neutralizing or quaternizing agents can be present from the start in the polymerization in aqueous solution, but they can also be added only at the end of the polymerization.
  • an emulsion polymerization can also be carried out, followed by neutralization or Quaternization of the aqueous preparations are made.
  • emulsion polymerization it may be expedient to add substances which lead to a reduction in the viscosity.
  • molecular weight regulators can also be added in order to prevent an excessively high molecular weight, for example of more than 1,000,000.
  • the production took place in a reaction vessel with stirrer, heating, cooling, reflux condenser, temperature measurement and two inlet vessels.
  • the initial solution of water and catalyst was first prepared in the reaction vessel. Feed solutions 1 and 2 were placed in the separate feed vessels. The initial solution was heated to 75 ° C. with stirring. The two feed solutions were then added in parallel within 90 minutes, the temperature rising to 85 ° C. After the feed had ended, the reaction mixture was stirred at 80 ° C. for 60 min. After cooling to less than 45 ° C., the dispersion was adjusted to a pH of about 5.5 with the neutralizing solution.
  • the reaction product was obtained in the form of a clear solution and a Brookfield viscosity of more than 5 Pas (spindle 4, 20 up); the dry residue was 40% (determined by evaporation in an oil pump vacuum at 80 ° C).
  • the cloudy yellowish liquid had a pH of 5.4 + 1.
  • the density (20 ° C) was 1.056 + 0.1.
  • the viscosity (Ford cup, 4 mm nozzle) was 24 sec + _ 2.
  • the chemical oxygen demand (COD value, Dr. Lange cuvette test) was 357 g O2 / I.
  • the flash point (Abel-Pensky) was determined to be more than 100 ° C.
  • a) a glass plate and b) a painted steel sheet was provided with a coating of 10 to 20 ⁇ m thick by means of a paint spray gun.
  • the coconnage was left to dry for 15 to 20 min at room temperature on both surfaces. A transparent, hard film remained.
  • the applied coconnage was detached with water at room temperature (hand shower, 2 to 3 bar). The entire film was peeled off in less than 1 minute.
  • the COD value of the rinsing water was 433 mg 02 1-
  • Example 4 Using 70% by weight of dimethylaminopropyl methacrylamide (DMAPMA) and 30% by weight of ethyl acrylate (EA), a 30% by weight aqueous preparation was neutralized with glacial acetic acid as in Example 1.
  • DMAPMA dimethylaminopropyl methacrylamide
  • EA ethyl acrylate
  • DMAPMA dirnethylaminopropyl methacrylamide
  • BuA butyl acrylate
  • a 35% by weight aqueous preparation was neutralized with formic acid analogously to Example 1.
  • DMAEM dimethylaminoethyl methacrylate
  • MMA methyl methacrylate
  • DMAEM dimethylaminoethyl methacrylate
  • MMA methyl methacrylate
  • EA ethyl acrylate
  • Example 2 to 6 were examined analogously to Example 1 when coating surfaces. The results of Example 1 found could be confirmed with the monomer units of Examples 2 to 6.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Cable Accessories (AREA)
  • Hydrogenated Pyridines (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Utilisation de copolymères contenant des groupes amino dans des mélanges aqueux solubles à l'eau clarifiée en tant que revêtement temporaire dans des cabines de peinture au pistolet. Ces copolymères sont obtenus par copolymérisation de (a) entre 15 et 90 % en poids d'un ou plusieurs monomères non azotés avec une liaison double et (b) entre 85 et 10 % en poids d'un ou plusieurs monomères polymérisables linéaires contenant au moins une fonction amino tertiaire, diallylamine, 2-vinylpyridine et/ou 4-vinylpyridine. Les groupes amino des copolymères peuvent être entièrement ou partiellement neutralisés ou quaternisés.
EP90900806A 1988-11-26 1989-11-21 Revetement temporaire pour cabines de peinture au pistolet Pending EP0445216A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3839935 1988-11-26
DE3839935A DE3839935A1 (de) 1988-11-26 1988-11-26 Temporaere beschichtung von lackierkabinen

Publications (1)

Publication Number Publication Date
EP0445216A1 true EP0445216A1 (fr) 1991-09-11

Family

ID=6367929

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90900806A Pending EP0445216A1 (fr) 1988-11-26 1989-11-21 Revetement temporaire pour cabines de peinture au pistolet
EP89121532A Expired - Lifetime EP0371378B1 (fr) 1988-11-26 1989-11-21 Revêtement temporaire pour cabines de peinture

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP89121532A Expired - Lifetime EP0371378B1 (fr) 1988-11-26 1989-11-21 Revêtement temporaire pour cabines de peinture

Country Status (9)

Country Link
EP (2) EP0445216A1 (fr)
JP (1) JPH04502026A (fr)
KR (1) KR900701939A (fr)
AT (1) ATE89305T1 (fr)
BR (1) BR8907790A (fr)
CA (1) CA2003986A1 (fr)
DE (2) DE3839935A1 (fr)
ES (1) ES2040967T3 (fr)
WO (1) WO1990006344A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK53391D0 (da) * 1991-03-25 1991-03-25 Isoline As Fremgangsmaade til semiautomatisk rengoering og konservering af overflader og middel til brug ved fremgangsmaaden
CA2067482A1 (fr) * 1991-05-09 1992-11-10 Emanuiel Cooper Revetement antistatique permanent et pellicule polymere revetue
DE4323638A1 (de) * 1993-07-15 1995-01-19 Henkel Kgaa Verhinderung von Wasserflecken bei der technischen Reinigung
DE19822721A1 (de) * 1997-12-23 1999-07-01 Fraunhofer Ges Forschung Filmbildendes gezielt wiederablösbares Material
JP4597343B2 (ja) * 2000-10-04 2010-12-15 エスケー化研株式会社 多彩模様塗膜積層体
DE102008064043A1 (de) * 2008-12-19 2010-07-01 Dürr Systems GmbH Lackiervorrichtung und Verfahren zu deren Betrieb
JPWO2019044904A1 (ja) * 2017-08-30 2020-10-08 株式会社ネオス 塗膜剥離用プレコート剤、塗膜剥離用プレコート液および塗膜の剥離方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151372A1 (de) * 1981-12-24 1983-07-07 Henkel KGaA, 4000 Düsseldorf "entfernbare schutzueberzuege ergebende waessrige emulsionen sowie deren verwendung zum temporaeren schutz von lackierten und metallischen gegenstaenden"

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9006344A1 *

Also Published As

Publication number Publication date
EP0371378A1 (fr) 1990-06-06
ATE89305T1 (de) 1993-05-15
CA2003986A1 (fr) 1990-05-26
BR8907790A (pt) 1991-08-27
ES2040967T3 (es) 1993-11-01
EP0371378B1 (fr) 1993-05-12
KR900701939A (ko) 1990-12-05
WO1990006344A1 (fr) 1990-06-14
JPH04502026A (ja) 1992-04-09
DE58904345D1 (de) 1993-06-17
DE3839935A1 (de) 1990-05-31

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