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EP1352034A1 - Peintures pulverulentes durcissables, procede permettant de les produire et systeme melangeur pour peintures pulverulentes - Google Patents

Peintures pulverulentes durcissables, procede permettant de les produire et systeme melangeur pour peintures pulverulentes

Info

Publication number
EP1352034A1
EP1352034A1 EP01994736A EP01994736A EP1352034A1 EP 1352034 A1 EP1352034 A1 EP 1352034A1 EP 01994736 A EP01994736 A EP 01994736A EP 01994736 A EP01994736 A EP 01994736A EP 1352034 A1 EP1352034 A1 EP 1352034A1
Authority
EP
European Patent Office
Prior art keywords
powder coating
powder
curable
dimensionally stable
pigments
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Withdrawn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
EP01994736A
Other languages
German (de)
English (en)
Inventor
Christopher Hilger
Susanne Piontek
Michael Mauss
Günther ETZRODT
Robert Bayer
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 Coatings GmbH
Original Assignee
BASF Coatings 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
Application filed by BASF Coatings GmbH filed Critical BASF Coatings GmbH
Publication of EP1352034A1 publication Critical patent/EP1352034A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C08J3/2053—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the additives only being premixed with a liquid phase
    • 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
    • C09D5/03—Powdery paints

Definitions

  • Binder dispersions mixed together, after which the resulting mixtures are spray dried.
  • Crosslinking agents coloring and / or effect-giving, fluorescent, electrically conductive and / or magnetically shielding pigments
  • the statistical average of the polyisocyanates contains at least 2.0, preferably more than 2.0 and in particular more than 3.0 isocyanate groups per molecule. There is basically no upper limit to the number of isocyanate groups; According to the invention, however, it is advantageous if the number does not exceed 15, preferably 12, particularly preferably 10, very particularly preferably 8.0 and in particular 6.0.
  • Blocked polyisocyanates are further examples of suitable crosslinking agents.
  • Lactic acid Lactic acid, lactic acid ester, methylolurea, methylolmelamine, diacetone alcohol, ethylene chlorohydrin, ethylene bromohydrin, 1, 3-dichloro-2-propanoI, 1, 4-cyclohexyldimethanol or
  • xiv) salts of sulfurous acid such as sodium bisulfite or potassium bisulfite
  • xv) hydroxamic acid esters such as benzyl methacrylohydroxamate (BMH) or allyl methacrylohydroxamate; or
  • suitable organic color pigments are monoazo pigments, bisazo pigments, anthraquinone pigments, and
  • solvents (B) are suitable as solvents (B).
  • Solvents are preferably used in which the constituents (C) described below are soluble and / or dispersible.
  • the (meth) acrylate (co) polymers in particular with vinyl aromatics such as styrene, have particular advantages and are therefore used with particular preference.
  • the functionality of the self-crosslinking and / or crosslinking constituents (C) with respect to the reactive functional groups described above can vary very widely and depends in particular on the crosslinking density which is to be achieved and / or on the functionality of the crosslinking agent used in each case.
  • the acid number is preferably 10 to 100, preferably 15 to 80, particularly preferably 20 to 75, very particularly preferably 25 to 70 and in particular 30 to 65 mg KOH / g.
  • the OH number is preferably 15 to 300, preferably 20 to 250, particularly preferably 25 to 200, very particularly preferably 30 to 150 and in particular 35 to 120 mg KOH / g.
  • Hydroxyalkyl esters of acrylic acid, methacrylic acid or another alpha.beta-olefinically unsaturated carboxylic acid which are derived from an alkylene glycol which is esterified with the acid, or by reacting the alpha.beta- olefinically unsaturated carboxylic acid with an alkylene oxide such as ethylene oxide or.
  • Propylene oxide are available, in particular hydroxyalkyl esters of acrylic acid, methacrylic acid, ethacrylic acid, crotonic acid, malic acid,
  • a bond which can be activated with actinic radiation is understood to mean a bond which becomes reactive when irradiated with actinic radiation and which undergoes polymerization reactions and / or crosslinking reactions with other activated bonds of its type which take place according to radical and / or ionic mechanisms.
  • suitable bonds are carbon-hydrogen single bonds or carbon-carbon, carbon-oxygen, carbon-nitrogen, carbon-phosphorus or carbon-silicon single bonds or double bonds.
  • the carbon-carbon double bonds are particularly advantageous and are therefore used with very particular preference in accordance with the invention. For the sake of brevity, they are referred to below as "double bonds".
  • the solution or the dispersion (1) preferably consists, in each case based on the total amount of the solution or the dispersion (I),
  • the preparation of the dispersions or solutions (1) has no peculiarities, but is carried out in a customary and known manner by mixing the constituents (A) and (B) described above and, if appropriate, (C) in suitable mixing units such as stirred kettles, dissolvers, agitator mills or Extruder, where the use of components curable with actinic radiation is carried out, if appropriate, in the absence of light.
  • suitable mixing units such as stirred kettles, dissolvers, agitator mills or Extruder, where the use of components curable with actinic radiation is carried out, if appropriate, in the absence of light.
  • the average particle size of the dimensionally stable particles (II) is preferably 1 to 200 ⁇ m, preferably 2 to 150 ⁇ m, and particularly preferably 3 to 100 ⁇ m.
  • the median particle size is understood to mean the 50% median value determined by the laser diffraction method, i.e. 50% of the particles have a particle diameter ⁇ the median value and 50% of the particles have a particle diameter> the median value.
  • the composition of the dimensionally stable particles (II) can vary extremely widely. It depends primarily on whether the powder coating of the invention to be produced is thermally self-crosslinking, thermally externally crosslinking, curable with actinic radiation or dual-cure curable. If the dimensionally stable particles (II) serve to produce thermally self-crosslinking powder coatings, they contain at least one thermally self-crosslinking binder or consist of them. Examples of suitable binders of this type are the thermally self-crosslinking constituents (C) described above.
  • the particles (II) can be the preliminary stage of a powder coating which is to be completed with at least one functional component (A).
  • the clear, transparent precursor of a color and / or effect powder coating is coated with a dispersion which contains at least one color and / or effect pigment as a functional component (A).
  • the quantitative ratio of dispersion and / or solution (I) to dimensionally stable particles (II) can vary very widely from case to case. In any case, the ratio (I): (II) is always adjusted in such a way that all constituent parts are available in the quantities required to set the desired property profile.
  • an “universal” powder clearcoat (II), so to speak, can be the starting point of the process according to the invention, which is coated with a wide variety of solutions and / or dispersions (I) depending on the intended use of the powder coating according to the invention to be produced therefrom.
  • the dimensionally stable particles (II) become continuous or discontinuous
  • Fluidized bed supplied wherein it with at least one dispersion and / or at least one solution (I) can be coated. If different dispersions and / or solutions (I) are used, they are preferably sprayed in at different points. If only one solution or dispersion (I) is used, it can also be sprayed in at various points in order to optimize its distribution in the fluidized bed. In the case of continuous operation, care must be taken to ensure a narrow dwell time distribution.
  • the process according to the invention can be controlled so that thermally sensitive, catalytically active and / or highly reactive functional constituents (A) can also be incorporated into the powder coatings according to the invention, in which there is a risk under the conditions of the customary and known processes for producing powder coatings is that they decompose or that they are undesirable cause premature cross-linking reactions.
  • functional constituents (A) are catalysts for the crosslinking, crosslinking agents such as polyisocyanates or thermolabile free radical initiators.
  • Property profile of powder coatings is used for the subsequent adjustment of the color tone and / or the optical effect of color and / or effect powder coatings of different colors and / or intensity of the optical effects.
  • a fluidized bed dryer (Uniiab-5) which had the technical data listed in Table 1 was used for Examples 1 to 12. The main process parameters are also shown in Table 1.

Landscapes

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

Abstract

L'invention concerne une peinture pulvérulente durcissable, obtenue par application d'au moins une dispersion et/ou au moins une solution (I) contenant (A) au moins un constituant fonctionnel d'une peinture pulvérulente, (B) au moins un solvant, ainsi qu'éventuellement (C) au moins un constituant oligomère et/ou polymère, sur la surface de particules (II) aux dimensions stables, avec élimination partielle, sensiblement complète ou totale du solvant ou des solvants (B). L'invention concerne en outre un nouveau système mélangeur et un nouveau procédé permettant de produire et/ou d'ajuster ultérieurement la composition des substances et/ou d'ajuster le profil des propriétés techniques de peintures pulvérulentes durcissables, selon lequel au moins une dispersion et/ou au moins une solution (I) sont utilisées.
EP01994736A 2000-11-27 2001-11-27 Peintures pulverulentes durcissables, procede permettant de les produire et systeme melangeur pour peintures pulverulentes Withdrawn EP1352034A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10058860A DE10058860A1 (de) 2000-11-27 2000-11-27 Härtbare Pulverlacke, Verfahren zu ihrer Herstellung und Mischsystem für Pulverlacke
DE10058860 2000-11-27
PCT/EP2001/013792 WO2002042384A1 (fr) 2000-11-27 2001-11-27 Peintures pulverulentes durcissables, procede permettant de les produire et systeme melangeur pour peintures pulverulentes

Publications (1)

Publication Number Publication Date
EP1352034A1 true EP1352034A1 (fr) 2003-10-15

Family

ID=7664847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01994736A Withdrawn EP1352034A1 (fr) 2000-11-27 2001-11-27 Peintures pulverulentes durcissables, procede permettant de les produire et systeme melangeur pour peintures pulverulentes

Country Status (10)

Country Link
US (1) US20040059050A1 (fr)
EP (1) EP1352034A1 (fr)
JP (1) JP4264259B2 (fr)
AU (1) AU2002224897A1 (fr)
BR (1) BR0115590A (fr)
CA (1) CA2428389A1 (fr)
DE (2) DE10066134B4 (fr)
MX (1) MXPA03003549A (fr)
NO (1) NO20032357L (fr)
WO (1) WO2002042384A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10120770A1 (de) * 2001-04-27 2002-11-07 Basf Coatings Ag Thermoplastische Pulverlacke, Verfahren zu ihrer Herstellung und Mischsystem für Pulverlacke
DE10241136B4 (de) * 2002-09-03 2005-05-19 Adolf Neis Verfahren zur Herstellung einer lösemittelfreien Beschichtungszusammensetzung
DE10334308A1 (de) * 2003-07-28 2005-02-24 Basf Coatings Ag Feste Pigmentpräparationen und ihre Dispersionen in organischen Lösemitteln, Verfahren zu ihrer Herstellung und ihre Verwendung
US7867555B2 (en) 2004-02-13 2011-01-11 Valspar Sourcing Inc. Dispersion-coated powder coloring system
DE102004027650A1 (de) 2004-06-05 2006-01-05 Basf Coatings Ag Verfahren zum Beschichten elektrisch leitfähiger Substrate
US9156996B2 (en) 2005-10-21 2015-10-13 Valspar Sourcing, Inc. Powder coloring system
JP2009526905A (ja) * 2006-02-14 2009-07-23 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 非水性液体塗料組成物
WO2009117334A2 (fr) * 2008-03-18 2009-09-24 E. I. Du Pont De Nemours And Company Composition de revêtement à base de poudre pour le dépôt de métal
DE102009026185A1 (de) 2009-07-16 2011-02-10 Elantas Gmbh Reaktiv-Systeme
EP2546295B1 (fr) * 2011-07-14 2016-11-09 LANXESS Deutschland GmbH Masses de formage thermoplastiques dotées d'une stabilité améliorée contre le vieillissement thermique
TWI649335B (zh) * 2013-12-30 2019-02-01 德商艾朗希歐德意志有限公司 含酚之氫化腈橡膠
JP6610654B2 (ja) 2015-03-02 2019-11-27 Ａｇｃ株式会社 粉体塗料、塗装物品および塗装物品の製造方法
US12312488B2 (en) 2019-08-12 2025-05-27 Basf Coatings Gmbh Method for producing effect pigment pastes using a vibrator
MX2023014805A (es) * 2021-06-08 2024-03-15 Photio Spa Aditivo descontaminante de alta eficiencia que comprende nanoparticulas de oxido metalico en una matriz de nanoparticulas metalica o semi-metalica, util para ser agregada en pinturas, formulaciones o lo similar para proteger, cubrir o decorar supericies blandas o duras.
KR102867545B1 (ko) * 2024-03-05 2025-10-13 김병균 수분산성능 및 방청성을 확보한 형광자분 제조방법

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US5856378A (en) * 1988-12-02 1999-01-05 Courtaulds Coatings (Holdings) Limited Powder coating compositions
EP1134264A1 (fr) * 2000-03-17 2001-09-19 Toyo Aluminium Kabushiki Kaisha Compositions de revêtement en poudre, leur procédé de préparation et procédé de formation des revêtements

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GB1538744A (en) * 1975-05-13 1979-01-24 Interox Chemicals Ltd Bleaching composition containing diacyl peroxides
US5028412A (en) * 1987-05-01 1991-07-02 Purdue Research Foundation Oral compositions comprising anti-calculus agents
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EP0376884A3 (fr) * 1988-12-21 1991-06-05 Ciba-Geigy Ag Granulat coulant
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Publication number Priority date Publication date Assignee Title
US5856378A (en) * 1988-12-02 1999-01-05 Courtaulds Coatings (Holdings) Limited Powder coating compositions
EP1134264A1 (fr) * 2000-03-17 2001-09-19 Toyo Aluminium Kabushiki Kaisha Compositions de revêtement en poudre, leur procédé de préparation et procédé de formation des revêtements

Non-Patent Citations (1)

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Title
See also references of WO0242384A1 *

Also Published As

Publication number Publication date
BR0115590A (pt) 2003-12-09
MXPA03003549A (es) 2003-07-14
WO2002042384A1 (fr) 2002-05-30
JP2004514760A (ja) 2004-05-20
US20040059050A1 (en) 2004-03-25
DE10058860A1 (de) 2002-06-06
CA2428389A1 (fr) 2002-05-30
AU2002224897A1 (en) 2002-06-03
NO20032357D0 (no) 2003-05-26
JP4264259B2 (ja) 2009-05-13
NO20032357L (no) 2003-07-28
DE10066134B4 (de) 2006-09-14

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