EP0199785A1 - Procede d'application d'une couche d'appret aux matieres plastiques - Google Patents

Procede d'application d'une couche d'appret aux matieres plastiques

Info

Publication number
EP0199785A1
EP0199785A1 EP85905506A EP85905506A EP0199785A1 EP 0199785 A1 EP0199785 A1 EP 0199785A1 EP 85905506 A EP85905506 A EP 85905506A EP 85905506 A EP85905506 A EP 85905506A EP 0199785 A1 EP0199785 A1 EP 0199785A1
Authority
EP
European Patent Office
Prior art keywords
polyacrylate
aqueous dispersion
polyurethane
pigment
weight
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Withdrawn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
EP85905506A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Weinert
Frank Clasen
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.)
Chemulack Chemische-Und Lackfabrik & Co KG GmbH
Original Assignee
Chemulack Chemische-Und Lackfabrik & Co KG GmbH
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
Priority claimed from DE19843440535 external-priority patent/DE3440535A1/de
Application filed by Chemulack Chemische-Und Lackfabrik & Co KG GmbH filed Critical Chemulack Chemische-Und Lackfabrik & Co KG GmbH
Publication of EP0199785A1 publication Critical patent/EP0199785A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2433/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2433/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes

Definitions

  • the polyacrylate has reactive carboxyl groups.
  • the polyacrylate is free of reactive carboxyl groups, which does not rule out that the polyacrylate contains small amounts of carboxyl groups due to the manufacturing process.
  • a second invention is based on the object, a suitable coating for the primer mentioned above to accomplish.
  • an aqueous dispersion is used as the coating to be applied to the primer, which comprises an aliphatic, reactive carboxyl group-containing polyurethane, a reactive carboxyl group-containing or free of such carboxyl group, optionally a pigment and possibly a hardener contains, the ratio of polyurethane to polyacrylate between 90:10 and 10:90, in particular between 80:20 and 20:80, in particular between 70:30 and 30:70, in particular between 60:40 and 40:60.
  • Such a coating not only adheres well, it also does not attack the plastic (through the primer) and is also environmentally friendly.
  • the above object is achieved in that a mixture is used as the coating to be applied to the primer, which contains a polymer containing hydroxyl groups as a binder, in particular polyacrylate and / or polyester, an organic solvent, optionally a pigment and a hardener, in particular an isocyanate, contains.
  • a mixture is used as the coating to be applied to the primer, which contains a polymer containing hydroxyl groups as a binder, in particular polyacrylate and / or polyester, an organic solvent, optionally a pigment and a hardener, in particular an isocyanate, contains.
  • This coating also adheres well and does not or hardly attacks the plastic under the primer through the primer.
  • ABS acrylonitrile-butadiene-styrene copolymers
  • PA polyamide
  • POM paintable polyoxymethylene
  • PUR polyurethane
  • PVC polyvinycnioria
  • EPDM polypropylene rubber modified
  • PVCA vinyl chloride-vinyl acetate copolymers
  • UP unsaturated polyester
  • EP pretreated e.g. flamed Polyethylene (PE) and polypropylene (FF), polyphenylene oxide (PPO), in particular Noryl 731-802, polybutylene terephthalate (PBTP), GRP, polystyrene (PS)
  • ABS acrylonitrile-butadiene-styrene copolymers
  • PA polyamide
  • POM paintable polyoxymethylene
  • PUR polyurethane
  • PVC polyvinycnioria
  • EPDM polypropylene rubber modified
  • PP-EPDM vinyl chloride-vinyl acetate copolymers
  • UP
  • the dispersion be applied with or without pigments as the first and optionally only layer.
  • the dispersion can be used quite generally as a coating for plastics, regardless of whether it contains pigments or not: it does not attack the plastic and is environmentally friendly.
  • a second layer is applied to the first dispersion, it may contain organic solvents. These do not or hardly penetrate through the first layer. However, there is a further improvement in terms of non-interference with the plastic substrate if the second layer is also a dispersion according to the invention.
  • the dispersion according to the invention can be used particularly advantageously for coating hard PVC parts, in particular window parts, because PVC must be coated, since it would otherwise be degraded by the weather. It is particularly expedient if the layer to be applied directly to the rigid PVC parts contains a pigment and if, when a second layer is provided, this is an aqueous dispersion corresponding to the first layer (with or without pigment). If there is no pigment in the second layer, it may contain a UV absorber. If a metal pigmentation is provided for the second layer, it is expedient to first apply a metal base lacquer to the first layer and, after it has dried, the clear lacquer according to the invention or a top lacquer containing a metal pigment.
  • polyurethane dispersions are used which, at a solids content (% by weight) of 25-5o%, preferably 35-4o%, have a consistency of ⁇ 3000 mPas, preferably loo- 5oo mpas .
  • the liquid portion need not only consist of water, but it can also consist of 75-99% by weight, in particular 81-92% by weight, water and 25-1% by weight, in particular 19-8% by weight, of organic solvents and added neutralization means exist.
  • Such a dispersion that is completely or largely free of organic solvents does not attack the plastic that is coated. In addition, the dispersion cannot cause contamination of the atmosphere.
  • the dispersion can be used with and without a curing accelerator.
  • the otherwise customary pigments can be used as the pigment.
  • the aqueous dispersion can be applied by the usual methods.
  • the primer or coatings can also have additives, such as butchers, leveling agents.
  • the invention also relates to the fabrics according to the claims.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

Un procédé d'application d'une couche d'apprêt aux matières plastiques consistant essentiellement à utiliser une dispersion aqueuse contenant a) un polyuréthane aliphatique composé de groupes de carboxyle réactifs, b) un polyacrylate, c) un pigment, et éventuellement d) un durcisseur. Ce genre d'apprêt n'attaque pas la matière plastique et ne nuit pas à l'environnement.
EP85905506A 1984-11-02 1985-10-25 Procede d'application d'une couche d'appret aux matieres plastiques Withdrawn EP0199785A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19843440535 DE3440535A1 (de) 1983-05-03 1984-11-02 Verfahren zum grundieren von kunststoffen
DE3440534A DE3440534A1 (de) 1983-05-03 1984-11-02 Verfahren zum beschichten von kunststoffen
DE3440537 1984-11-02
DE3440535 1984-11-02
DE3440534 1984-11-02
DE19843440537 DE3440537A1 (de) 1983-05-03 1984-11-02 Verfahren zum beschichten von kunststoffteilen

Publications (1)

Publication Number Publication Date
EP0199785A1 true EP0199785A1 (fr) 1986-11-05

Family

ID=27192485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85905506A Withdrawn EP0199785A1 (fr) 1984-11-02 1985-10-25 Procede d'application d'une couche d'appret aux matieres plastiques

Country Status (3)

Country Link
EP (1) EP0199785A1 (fr)
AU (1) AU5012985A (fr)
WO (1) WO1986002655A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8617535D0 (en) * 1986-07-17 1986-08-28 Du Pont Canada Gas barrier structures
DE69004274T2 (de) * 1989-01-18 1994-02-24 Kansai Paint Co Ltd Wässerige thermoplastische Beschichtungszusammensetzung für Kunststoff-Werkstoffe sowie dieselbe benützendes Beschichtungsverfahren.
DE4239695A1 (de) * 1992-11-26 1994-06-01 Basf Lacke & Farben Verfahren zum Grundieren oder einschichtigen Lackieren von Kunststoffen mit einem wäßrigen Beschichtungsmittel
DE69524880T2 (de) * 1994-10-04 2002-08-22 Minnesota Mining & Mfg Reaktive, zweiteilige polyurethanzusammensetzungen, sowie daraus hergestellte gegebenenfalls selbstheilende und kratzfeste beschichtungen
US5798409A (en) * 1995-10-03 1998-08-25 Minnesota Mining & Manufacturing Company Reactive two-part polyurethane compositions and optionally self-healable and scratch-resistant coatings prepared therefrom
US5952106A (en) * 1996-11-14 1999-09-14 Alliedsignal Inc. Coated nylon film
FR2847259B1 (fr) * 2002-11-20 2006-11-24 Hutchinson Nouvelles compositions de peinture pour elastomeres

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278578A (en) * 1979-11-05 1981-07-14 Hillyard Enterprises, Inc. Coating composition for synthetic plastic substrates and methods for preparing and using same
US4301053A (en) * 1980-01-29 1981-11-17 General Electric Company Polyurethane resin coating composition
DE3112704C2 (de) * 1981-03-31 1986-08-07 Basf Farben + Fasern Ag, 2000 Hamburg Wäßrige Dispersion oder Emulsion zum Herstellen eines Überzuges auf Polyvinylchlorid-Oberflächen
DE3316550C2 (de) * 1983-05-03 1985-07-25 Chemulack Chemische- Und Lackfabrik Gmbh & Co Kg, 1000 Berlin Verfahren zum Grundieren von Kunststoffen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8602655A1 *

Also Published As

Publication number Publication date
WO1986002655A1 (fr) 1986-05-09
AU5012985A (en) 1986-05-15

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Inventor name: WEINERT, KARL-HEINZ

Inventor name: CLASEN, FRANK