[go: up one dir, main page]

EP0342199A1 - Polyetherurethane, procede pour sa fabrication, adjuvant d'egalisation et emploi du polyetherurethane - Google Patents

Polyetherurethane, procede pour sa fabrication, adjuvant d'egalisation et emploi du polyetherurethane

Info

Publication number
EP0342199A1
EP0342199A1 EP88901245A EP88901245A EP0342199A1 EP 0342199 A1 EP0342199 A1 EP 0342199A1 EP 88901245 A EP88901245 A EP 88901245A EP 88901245 A EP88901245 A EP 88901245A EP 0342199 A1 EP0342199 A1 EP 0342199A1
Authority
EP
European Patent Office
Prior art keywords
atoms
parts
polyether urethane
same
agent according
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
EP88901245A
Other languages
German (de)
English (en)
Inventor
Michael Geist
Günther OTT
Helmut Fobbe
Klaus Arlt
Udo Strauss
Klaus Cibura
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.)
BASF Farben und Fasern AG
Original Assignee
BASF Lacke und Farben AG
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 BASF Lacke und Farben AG filed Critical BASF Lacke und Farben AG
Publication of EP0342199A1 publication Critical patent/EP0342199A1/fr
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • 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
    • C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4488—Cathodic paints
    • C09D5/4492—Cathodic paints containing special additives, e.g. grinding agents
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/47—Levelling agents

Definitions

  • the film defects such as craters and the like, which are well known to the person skilled in the art, can then occur due to the incompatibility between the lacquer binder and the contamination.
  • silicone oils can be water-miscible or immiscible. They can also be modified with reactive groups, e.g. with hydroxyl or amino groups. What this group of additives has in common, however, is that although they can eliminate the surface defects, they generally cause serious adhesion problems for subsequent layers of paint such as fillers and topcoats.
  • Japanese patent application J 6 1115 974 describes a reaction product made from a polyepoxy resin modified with dimer fatty acid with polyoxyalkylene polyamine. This product is intended to suppress the tendency of KTL materials to crater.
  • EP 70 550 describes a reaction product of a polyepoxy resin with a polyoxylalkylene polyamine with primary amino groups. This material is also intended to improve the KTL films by eliminating or at least minimizing the tendency to crater. But these products also lead to sustained interim liability problems for fillers and top coats.
  • Polyether urethane process for its preparation, leveling agents and use of the polyether urethane
  • the invention relates to a polyether urethane, a process for its preparation, a leveling aid and the use of the polyether urethane.
  • KTL Cationic electrocoating
  • Electrocoating baths of the type described above are e.g. disclosed in the following patent documents: U.S. Patent 3,799,854; U.S. Patent 3,984,299; U.S. Patent 4,031,050; U.S. Patent 4,252,703; U.S. Patent 4,332,711 and German Patent 3108073.
  • these impurities are removed with in the polyether urethane according to the invention and its use in particular in aqueous, cathodically depositable electrocoat materials.
  • the polyalkylene ether diols are reaction products of water, aliphatic or aromatic diols and monoepoxides.
  • the molecular weight can be varied within wide limits via the stoichiometry. Molecular weights between 500 and 8000 are preferred for the purpose according to the invention, in particular molecular weights between 1000 and 5000 are preferred.
  • the person skilled in the art is familiar with the suitable monoepoxides. These include e.g. Ethylene oxide, propylene oxide and butylene oxide. These can be used individually or as a mixture. If a polyalkylene ether from various monoepoxides is desired, this is the case
  • aliphatic diols are suitable as aliphatic diols; diols with primary hydroxyl groups, ie diols such as ethylene glycol or diethylene glycol, are preferred.
  • Resorzinol, bisphenol A and bisphenol F have proven particularly useful as aromatic diols.
  • Aromatic and aliphatic diisocyanates are suitable for chain extension of the polyalkylene ether diols. These classes of substances are also familiar to the person skilled in the art, so that only a few suitable types are to be mentioned here as representative. These include tolylene diisocyanate, 4,4'-diisocyanatodiphenylmethane, hexamethylene diisocyanate and isophorone diisocyanate. These isocyanates are reacted at room temperature or at elevated temperature, if appropriate in the presence of solvents which cannot react with isocyanate groups. The reaction can be accelerated with the usual catalysts for the isocyanate-hydroxyl group reaction.
  • Organotin compounds such as dibutyltin dilaurate are particularly suitable.
  • KTL binders reduce the tendency to craters and, on the other hand, can react via functional groups with the auxiliary in the KTL binder during the stoving process.
  • These additives are reaction products of polyalkyl ether diols with aromatic and / or aliphatic diisocyanates in a molar ratio of approximately n: (n + 1); the remaining isocyanate groups are further modified with secondary amines in a second reaction step.
  • the invention thus relates to a polyether urethane of the general formula
  • R 1 H or an alkyd radical having 1 to 8 carbon atoms
  • R 2 the alkylene radical with 2 to 10 C atoms or a cycloalkylene radical with 6 to 20 C atoms or an arylene radical with 6 to 20 C atoms R 3 ,
  • R 4 an optionally substituted alkyl radical with 1 to 8 carbon atoms or a common ring, the members of which are R 3 and
  • the invention further relates to a process for the preparation of a polyether urethane in which a polyalkylene ether diol with an excess of aromatic and / or aliphatic diisocyanates is converted into an intermediate product with terminal isocyanate groups and then these isocyanate groups are reacted with secondary amines, a leveling agent for aqueous lacquers consisting of or containing The polyalkylene ether diols are reacted with the diisocyanates in such stoichiometric amounts that the intermediate product has terminal isocyanate groups.
  • the ratio of polyalkylene ether to diisocyanate is approximately n: (n + 1).
  • terminal I socyanate groups are then reacted further with secondary amines in a subsequent reaction step.
  • the suitable secondary amines belong to the dialkylamines such as dimethylamine or dibutylamine, to the alkylalkanolamines such as methylethanolamine or ethylethanolamine, to the dialkanolamines such as diethanolamine.
  • Polyamines with a secondary amino group and further primary amino groups are also suitable.
  • the primary amino groups must be blocked before the reaction with the intermediate products containing isocyanate groups, in order to prevent undesired chain extension or gelling.
  • a well known method for blocking primary amino groups is the reaction with ke tonen.
  • a polyamine modified in this way is the diketimine from diethylene triamine and methyl isobutyl ketone.
  • the additives can be added during the production of the KTL binders, but they can also be converted separately into the aqueous solution by adding organic acids and water. If required, this aqueous solution can now be added to the KTL bath in suitable amounts, preferably between 1 and 20 parts by weight of the additive (solid) on KTL binder (solid).
  • the KTL binders and pigment pastes used correspond to Example 2 (binder dispersion) of DE-PS 3108073 and Example 7 (pigment paste) of EP 102501 B1.
  • the diisocyanate is initially charged with methyl isobutyl ketone (MIBK) in a suitable reaction vessel under nitrogen, heated to 50 ° C. and mixed with dibutyltin dilaurate.
  • MIBK methyl isobutyl ketone
  • the polyalkylene ether diol is then run in at a rate such that the temperature does not exceed 70.degree.
  • the secondary amine is added. The temperature is allowed to rise to 90 ° C and is held until all isocyanate groups have reacted.
  • MIBK methyl isobutyl ketone
  • Pluriol PE 3100 polyalkylene ether diol from BASF AG, copolymer based on ethylene oxide-propylene oxide,
  • Pluriol PE 6200 Polyethylene ether diol from BASF AG, copolymer based on ethylene oxide - propylene oxide,
  • Dianol 3310 Polyalkylene ether diol from AKZO based on ethoxylated bisphenol A, molecular weight 1020
  • Example 2 of DE-PS 3108073 The preparation of the binder dispersion is described in Example 2 of DE-PS 3108073. This dispersion without additives serves as a comparison dispersion.
  • additive Ib 203.5 parts of additive I are mixed with 7.22 parts of glacial acetic acid and 338.1 parts of deionized water. This additive mixture is then slowly stirred into 4500 parts of binder dispersion. A solid of 30% is then adjusted with a further 1193.2 parts of water. The additive content is 9.5% solid on solid. Dispersion Ib
  • the production takes place analogously to la.
  • the weights are:
  • the additive content is 13% solid on solid.
  • the production takes place analogously to la.
  • the weights are:
  • the additive content is 6% solid on solid.
  • the production takes place analogously to la.
  • the weights are:
  • the additive content is 9.5% solid on solid.
  • the production takes place analogously to la.
  • the weights are:
  • the production takes place analogously to la.
  • the weights are:
  • the additive content is 13% solid on solid.
  • 1675 parts of deionized water are placed in a suitable vessel and 25 parts of 10% acetic acid are added. 2279 parts of the binder dispersion and 775 parts of the pigment paste are stirred into this and made up with 246 parts of deionized water. The paint baths of the deposits are aged for 3 days with stirring.
  • the films were deposited on zinc-phosphated steel sheets, which were connected as cathode, at 300 V for 2 min. After the usual post-treatment, the films were baked at 175 ° C for 20 minutes.
  • Liability 1 0.5 0 0.5 0 1 0 0.5
  • the KTL tapes were then contaminated with 0.1% ASTM oil. The oil was stirred in one day. The baths were then separated as described above.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Molecular Biology (AREA)
  • Paints Or Removers (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Polyétheruréthane de formule générale (I), dans laquelle R1 est H ou un résidu alkyle avec 1 à 8 atomes de carbone, R2 est un résidu alkylène avec 2 à 10 atomes de carbone ou un résidu cycloalkylène avec 6 à 20 atomes de carbone ou bien un résidu arylène avec 6 à 20 atomes de carbone, R3 et R4 sont un résidu alkyle, éventuellement substitué, avec 1 à 8 atomes de carbone ou un composé cyclique commun dont les côtés sont R3 et R4, n vaut entre 2 et 180 et m vaut entre 1 et 15. Sont également décrits un procédé pour produire ledit polyétheruréthane, un adjuvant d'égalisation pour des vernis aqueux, ainsi que l'emploi du polyétheruréthane comme adjuvant d'égalisation dans des vernis électrophorétiques aqueux séparables cathodiquement.
EP88901245A 1987-01-21 1988-01-20 Polyetherurethane, procede pour sa fabrication, adjuvant d'egalisation et emploi du polyetherurethane Pending EP0342199A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3701547 1987-01-21
DE19873701547 DE3701547A1 (de) 1987-01-21 1987-01-21 Polyetherurethan, verfahren zu seiner herstellung, verlaufshilfsmittel und verwendung des polyetherurethans

Publications (1)

Publication Number Publication Date
EP0342199A1 true EP0342199A1 (fr) 1989-11-23

Family

ID=6319160

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19880100762 Expired - Lifetime EP0279198B1 (fr) 1987-01-21 1988-01-20 Composition pour le trempage électro-phorétique
EP88901245A Pending EP0342199A1 (fr) 1987-01-21 1988-01-20 Polyetherurethane, procede pour sa fabrication, adjuvant d'egalisation et emploi du polyetherurethane

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19880100762 Expired - Lifetime EP0279198B1 (fr) 1987-01-21 1988-01-20 Composition pour le trempage électro-phorétique

Country Status (8)

Country Link
US (1) US5879754A (fr)
EP (2) EP0279198B1 (fr)
JP (1) JPH0649841B2 (fr)
AT (1) ATE78269T1 (fr)
BR (1) BR8807325A (fr)
DE (2) DE3701547A1 (fr)
ES (1) ES2042604T3 (fr)
WO (1) WO1988005445A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3741538A1 (de) * 1987-12-08 1989-06-22 Bayer Ag Polyurethanharnstoffe
AT392074B (de) * 1988-10-13 1991-01-25 Vianova Kunstharz Ag Verfahren zur herstellung von bindemittelkombinationen fuer kathodisch abscheidbare lacke
DE3919547A1 (de) * 1989-06-15 1990-12-20 Ruetgerswerke Ag Haertungsmittel fuer epoxidharze
DE3924694A1 (de) * 1989-07-26 1991-01-31 Basf Lacke & Farben Verfahren zum beschichten elektrisch leitfaehiger substrate, waessriger lack, verfahren zur herstellung eines urethangruppenhaltigen adduktes und urethangruppenhaltiges addukt
US5389720A (en) * 1990-05-25 1995-02-14 Miles Inc. Aqueous polyisocyanate dispersions
DE4215480A1 (de) * 1992-05-11 1993-11-18 Hoechst Ag Elektrotauchlackbad enthaltend ein Urethan
DE4311923A1 (de) * 1993-04-10 1994-10-13 Huels Chemische Werke Ag Zweikomponentig zu verarbeitende Beschichtungszusammensetzung zur Herstellung von PUR-Elastomeren
PL335694A1 (en) 1997-03-17 2000-05-08 Dow Chemical Co Polyurethane latexes, methods of obtaining them and polymers produced from such latexes
NO20001904L (no) * 1999-04-14 2000-10-16 Dow Chemical Co Polyuretanfilmer fremstilt ved elektrolytisk utfelling fra polyuretandispersjoner
NO20001903L (no) 1999-04-14 2000-10-16 Dow Chemical Co Polyuretan-filmer fremstilt fra polyuretan-dispersjoner
DE10353638A1 (de) * 2003-11-17 2005-06-23 Basf Coatings Ag Strukturviskose, wässrige Dispersionen, Verfahren zu ihrer Herstellung und ihre Verwendung
US7828994B2 (en) * 2004-10-26 2010-11-09 Ortec, Inc. Conductive paint compositions for forming conductive coatings on substrates
EP1792925B1 (fr) * 2005-12-01 2015-10-07 Henkel AG & Co. KGaA Nouveau matériau formant des structures supramoleculaires, procédé et utilisations

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069383B (de) * 1954-08-13 1959-11-19 E. I. Du Pont De Nemours And Company, Wilmington, Del. (V. St. A.) Verfahren zur Stabilisierung kautschukartiger Produkte
DE1078321B (de) * 1957-08-13 1960-03-24 Bayer Ag Verfahren zur Herstellung von homogenen verformten Elastomeren oder Schaumstoffen
US3799854A (en) 1970-06-19 1974-03-26 Ppg Industries Inc Method of electrodepositing cationic compositions
US3984299A (en) 1970-06-19 1976-10-05 Ppg Industries, Inc. Process for electrodepositing cationic compositions
BE791999A (fr) * 1971-11-30 1973-03-16 Witco Chemical Corp Solution de laque de polyurethane derivant du di-isocyanate de toluene et son procede de fabrication (
US4046729A (en) * 1975-06-02 1977-09-06 Ppg Industries, Inc. Water-reduced urethane coating compositions
US4009307A (en) * 1975-07-24 1977-02-22 Ppg Industries, Inc. Polyurea-urethane coatings
US4155892A (en) * 1975-10-03 1979-05-22 Rohm And Haas Company Polyurethane thickeners for aqueous compositions
US4137276A (en) * 1977-08-19 1979-01-30 National Starch And Chemical Corporation Flexible film laminating adhesives
US4136070A (en) * 1977-10-31 1979-01-23 E. I. Du Pont De Nemours And Company Cathodic electrodeposition of paints
AT356779B (de) 1978-03-13 1980-05-27 Herberts & Co Gmbh Kathodisch abscheidbares waesseriges elektro- tauchlack-ueberzugsmittel
DE2843790A1 (de) * 1978-10-06 1980-04-17 Bayer Ag Verfahren zur herstellung von waessrigen dispersionen oder loesungen von polyurethan-polyharnstoffen, die nach diesem verfahren erhaeltlichen dispersionen oder loesungen, sowie ihre verwendung
JPS5580436A (en) 1978-12-11 1980-06-17 Shell Int Research Thermoplastic resin binding composition* preparing same* and using same as coating material
AT366400B (de) * 1979-04-09 1982-04-13 Vianova Kunstharz Ag Verfahren zur herstellung kathodisch abscheidbarer lackbindemittel
DE3108073C2 (de) 1981-03-04 1983-10-06 Basf Farben + Fasern Ag, 2000 Hamburg Wasserdispergierbare Bindemittel für kationische Elektrotauchlacke
DE3300545A1 (de) * 1983-01-10 1984-07-12 Basf Farben + Fasern Ag, 2000 Hamburg Wasserdispergierbare bindemittel fuer kationische elektrotauchlacke und verfahren zu ihrer herstellung
US4522986A (en) * 1984-07-20 1985-06-11 General Motors Corporation Urea flow control agents for urethane paint prepared by reaction of an isocyanate-terminated prepolymer and an ethanolamine
DE3438563A1 (de) * 1984-10-20 1986-04-24 Bayer Ag, 5090 Leverkusen Waessrige loesungen oder dispersionen von polyisocyanat-additionsprodukten, ein verfahren zu ihrer herstellung, sowie ihre verwendung als beschichtungsmittel oder als leimungsmittel fuer papier
US4742095A (en) * 1985-07-25 1988-05-03 Mobay Corporation Continuous process for the production of aqueous polyurethane-urea dispersions
DE3613492A1 (de) * 1986-04-22 1987-10-29 Bayer Ag Verfahren zur herstellung von waessrigen dispersionen von polyurethan-polyharnstoffen, die nach diesem verfahren erhaeltlichen dispersionen und ihre verwendung als oder zur herstellung von beschichtungsmitteln
AT388924B (de) * 1987-11-03 1989-09-25 Vianova Kunstharz Ag Verfahren zur herstellung von kationischen lackbindemitteln auf basis von polyetherurethanen und deren verwendung

Also Published As

Publication number Publication date
JPH01503239A (ja) 1989-11-02
WO1988005445A1 (fr) 1988-07-28
JPH0649841B2 (ja) 1994-06-29
DE3872728D1 (en) 1992-08-20
ES2042604T3 (es) 1993-12-16
ATE78269T1 (de) 1992-08-15
BR8807325A (pt) 1990-03-01
US5879754A (en) 1999-03-09
EP0279198A1 (fr) 1988-08-24
DE3701547A1 (de) 1988-08-04
EP0279198B1 (fr) 1992-07-15

Similar Documents

Publication Publication Date Title
EP0505445B1 (fr) Procede pour revetir des substrats electroconducteurs, vernis aqueux, produit d'addition amine-epoxy et emploi de ce dernier comme resine de friction pour la fabrication de pates pigmentaires
DE69803386T2 (de) Elektrotauchlackierungszusammensetzungen und ihre verwendung bei der kationischen elektrotauchlackierung
EP0010670B1 (fr) Procédé de préparation de liants pour vernis électrodéposables à la cathode
EP0121837A1 (fr) Liant pour revêtements auto-réticulable par la chaleur, procédé pour sa préparation et utilisation
EP0409821A1 (fr) Couches de revetement appliquees par un procede de trempage electrophoretique et susceptibles d'etre recouvertes par electrophorese.
DE3108073C2 (de) Wasserdispergierbare Bindemittel für kationische Elektrotauchlacke
EP0279198B1 (fr) Composition pour le trempage électro-phorétique
EP0626000B1 (fr) Procede de laquage de substrats electro-conducteurs, laques de trempage electrophoretique aqueuses, procede de fabrication d'une dispersion aqueuse de microparticules polymeres reticulees et dispersions realisees d'apres ledit procede
DE60019073T2 (de) Kationische Beschichtungszusammensetzung
DE69506126T3 (de) Elektrotauchlackzusammensetzungen mit verbesserten härtungseigenschaften
EP0301293B2 (fr) Bain aqueux d'électrodéposition contenant des résines synthétiques déposables à la cathode et procédé de revêtement de substrats électroconducteurs
EP0313932A2 (fr) Agent durcissant pour les résines synthétiques, mélanges durcissables le contenant et leur utilisation
EP0476514A1 (fr) Procédé de préparation d'agents de réticulation pour liants de revêtement déposables à la cathode
DE2814439C3 (de) Bad zur elektrophoretischen Abscheidung eines kationischen Harzes auf die Oberfläche eines Eisengegenstandes aus einer wäßrigen Dispersion
EP0350618B1 (fr) Résine véhicule pour pâtes de pigment, sa préparation et utilisation
EP0135909A2 (fr) Composition de revêtement aqueuse électrodéposable à la cathode
EP0296489B1 (fr) Résine portant des groupements basiques azotés, sa fabrication et son utilisation
EP0249850A2 (fr) Liants de peintures cationiques, autoréticulants
EP0017232A1 (fr) Produits de réaction de polyisocyanates bloqués avec des produits de réaction d'un composé époxy et d'une guanidine et leur utilisation dans des compositions de recouvrement et dans des peintures électrophorétiques cathodiques
EP0334284B1 (fr) Durcisseurs pour résines synthètiques, mélanges durcissables les contenant et leur utilisation
EP0484451B1 (fr) Procede pour revetir des substrats electroconducteurs, laque aqueuse, procede pour produire un additif renfermant des groupes urethanes et additif ainsi obtenu
DE69210392T2 (de) Reaktionprodukten von einem amindiol mit einem polyfunktionellen verbindung und ihre verwendung in cationischer lackierungzusammensetzungen
EP0536166B1 (fr) Procede de revetement de substrats electro-conducteurs, laque aqueuse et reticulant contenant des groupes nco bloques
EP0123140B1 (fr) Liant pour revêtement par dépôt électrolytique cationique
DE3545205C1 (de) Kathodisch abscheidbares waessriges Elektrotauchlack-UEberzugsmittel und dessen Verwendung zum Beschichten von Gegenstaenden

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 19890526

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

XX Miscellaneous (additional remarks)

Free format text: VERFAHREN ABGESCHLOSSEN INFOLGE VERBINDUNG MIT 88100762.9/0279198 (EUROPAEISCHE ANMELDENUMMER/VEROEFFENTLICHUNGSNUMMER) VOM 01.06.90.