EP1590409A1 - Liant plastique servant a produire des peintures pulverulentes, peintures pulverulentes le contenant, et enrobages et revetements produits au moyen de celui-ci - Google Patents

Liant plastique servant a produire des peintures pulverulentes, peintures pulverulentes le contenant, et enrobages et revetements produits au moyen de celui-ci

Info

Publication number
EP1590409A1
EP1590409A1 EP04702607A EP04702607A EP1590409A1 EP 1590409 A1 EP1590409 A1 EP 1590409A1 EP 04702607 A EP04702607 A EP 04702607A EP 04702607 A EP04702607 A EP 04702607A EP 1590409 A1 EP1590409 A1 EP 1590409A1
Authority
EP
European Patent Office
Prior art keywords
powder paints
pyrogenic
plastic binder
agent
powder coating
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Withdrawn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
EP04702607A
Other languages
German (de)
English (en)
Inventor
Gerhard Reich
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.)
Tigerwerk Lack- U Farbenfabrik & Co Kg GmbH
Original Assignee
Tigerwerk Lack- U Farbenfabrik & 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
Application filed by Tigerwerk Lack- U Farbenfabrik & Co Kg GmbH filed Critical Tigerwerk Lack- U Farbenfabrik & Co Kg GmbH
Publication of EP1590409A1 publication Critical patent/EP1590409A1/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Withdrawn legal-status Critical Current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
    • 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
    • C09D5/033—Powdery paints characterised by the additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K

Definitions

  • the invention relates to a plastic binder for the production of powder coatings, powder coatings containing them and coatings and coatings produced therewith.
  • Powder coatings have long been highly valued as a coating agent. Above all, the lack of solvents is extremely beneficial, both ecologically and economically.
  • plastic binders which together have the potential for a subsequent curing reaction under the addition of heat or radiation, are intimately mixed together with optionally further substances such as pigments, fillers and additives in fine particles and then mixed in an extruder with heating to form a homogeneous plastic mass. This mass is cooled, broken, ground and sieved and then represents the powder coating.
  • a peculiarity in the production of powder coatings according to this mostly used extrusion process is the fact that this process is a continuous one, in which the dry mixture previously intimately pre-mixed as a batch, but which still constitutes a discontinuity at this point, ideally after passing through the extruder to represent a perfectly homogeneous mass through and through.
  • plastic binders in question here are synthetic resins such as polyester, poly (meth) acrylate, epoxy resins or mixtures thereof and - commonly referred to as hardeners - plastic binders such as ⁇ -hydroxyalkylamides, triglycidyl isocyanate, diglycidyl terephthalate, triglycidyl trimellitate, isocyanate adducts or mixtures thereof.
  • synthetic resin binders used for the production of powder coatings the class of polyesters plays a special role due to their balanced property profile and the resulting broad applicability.
  • pyrogenic oxides is used to summarize highly disperse oxides which are produced by flame hydrolysis and which are hydrophilic as such. There are also versions which more or less result from a more or less extensive subsequent chemical reaction of their surface hydroxyl groups with organosilicon compounds have a pronounced hydrophobic character.
  • the largest range of technical applications has pyrogenic silica, it is - more than the other pyrogenic oxides - in numerous different subtleties (average particle sizes of the different types from approx. 7 - 40 nm) and is hydrophilic as such.
  • the object of the invention is to create a possibility which makes it possible to provide powder coatings without technical or aesthetic defects by means of a single extrusion step of the underlying dry mixture.
  • the object is surprisingly achieved according to the invention in that the plastic binder is mixed with pyrogenic oxides of silicon, aluminum or titanium or mixtures thereof with primary particle sizes between 5 and 65 nm. Such a plastic binder is then used to produce powder coatings.
  • the pyrogenic oxide (s) added to the plastic binder have, on the one hand, a reinforcing effect for the plastic binder and lead to an increase in the viscosity of the plastic binder.
  • plastic binders that have already been mixed provide a significantly improved distribution of pyrogenic oxides in the finished powder coating than would be achieved when added to the dry batch of a powder coating.
  • the plastic binder is mixed with pyrogenic silica.
  • the pyrogenic oxides can be surface-treated.
  • it is preferred that the primary particle sizes of the pyrogenic additive (s) are between 7 and 40 nm.
  • the invention further consists in that the pyrogenic additive (s) is contained in an amount of 0.05 to 10%, preferably 0.25 to 2.5, in particular 1%, based on the weight of the plastic binder ( are).
  • the amount of pyrogenic oxides to be used advantageously depends inter alia on on the type, particle size and chemical surface properties of the pyrogenic additives.
  • the invention also relates to a powder coating consisting of a plastic binder, additives and optionally pigments and fillers, which is characterized in that the plastic binder is mixed with pyrogenic oxides of silicon, aluminum or titanium or mixtures thereof with primary particle sizes between 5 and 65 nm.
  • the invention also includes a coating or a coating consisting of such a powder coating.
  • Example - polyester resin (resin 2) containing carboxyl groups according to the invention:
  • Aerosil® 200 are added to the batch of the above first reaction stage, consisting of 2,2-dimethylpropanediol 1,3, ethylene glycol, terephthalic acid and Sn-containing catalyst, and the whole is reacted in an analogous manner to a hydroxy-functional polyester resin.
  • the cooled extra data were broken, ground on a classifier mill and sieved with a grain size limit of 100 ⁇ m.
  • the powder coatings were then applied with a layer thickness of approx. 80 ⁇ m (finished coating film) to chromated aluminum sheets 0.7 mm thick and baked in a convection oven at 200 ° C. for 10 minutes.
  • Powder coating C made of resin 2 (according to the invention) is clearly superior to powder coatings A and B made of resin 1, which demonstrates the technical value of the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Nanotechnology (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un liant plastique servant à produire des peintures pulvérulentes. Selon l'invention, des oxydes pyrogènes de silicium, d'aluminium ou de titane, de préférence de l'acide silicique pyrogène, ou des mélanges de ceux-ci dont les particules primaires présentent des dimensions comprises entre 5 et 65 nm est/sont ajouté(s) à ce liant plastique. La présente invention se rapporte en outre aux peintures pulvérulentes contenant ce liant plastique, ainsi qu'aux enrobages et revêtements produits au moyen de celui-ci.
EP04702607A 2003-01-24 2004-01-16 Liant plastique servant a produire des peintures pulverulentes, peintures pulverulentes le contenant, et enrobages et revetements produits au moyen de celui-ci Withdrawn EP1590409A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0009703A AT412555B (de) 2003-01-24 2003-01-24 Kunststoffbindemittel zur herstellung von pulverlacken
AT972003 2003-01-24
PCT/AT2004/000011 WO2004065499A1 (fr) 2003-01-24 2004-01-16 Liant plastique servant a produire des peintures pulverulentes, peintures pulverulentes le contenant, et enrobages et revetements produits au moyen de celui-ci

Publications (1)

Publication Number Publication Date
EP1590409A1 true EP1590409A1 (fr) 2005-11-02

Family

ID=32739101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04702607A Withdrawn EP1590409A1 (fr) 2003-01-24 2004-01-16 Liant plastique servant a produire des peintures pulverulentes, peintures pulverulentes le contenant, et enrobages et revetements produits au moyen de celui-ci

Country Status (4)

Country Link
US (1) US20060183838A1 (fr)
EP (1) EP1590409A1 (fr)
AT (1) AT412555B (fr)
WO (1) WO2004065499A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT413699B (de) * 2004-02-06 2006-05-15 Tigerwerk Lack Und Farbenfabri Verfahren zur herstellung von polyesterharzen sowie solche polyesterharze umfassende pulverlackformulierungen

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5010328A (fr) * 1973-05-31 1975-02-03
DE2341294C3 (de) * 1973-08-16 1981-12-24 Bayer Ag, 5090 Leverkusen Polyolgemische
WO1981001857A1 (fr) * 1979-12-26 1981-07-09 Polymer Corp Revetements de resistance chimique
SU1497200A1 (ru) * 1987-05-19 1989-07-30 Ленинградский Технологический Институт Им.Ленсовета Порошкова композици дл покрытий
JP2508714B2 (ja) * 1987-05-21 1996-06-19 大日本インキ化学工業株式会社 ゲルコ−ト層を有する成形品の製造方法
JPH07100766B2 (ja) * 1987-06-25 1995-11-01 ソマール株式会社 エポキシ樹脂粉体塗料組成物
RU2030429C1 (ru) * 1990-12-10 1995-03-10 Воронкова Зинаида Ивановна Порошковая композиция для декоративного покрытия
DE4042191C1 (fr) * 1990-12-29 1992-07-30 Skw Trostberg Ag, 8223 Trostberg, De
ES2060449T3 (es) * 1991-07-22 1994-11-16 Akzo Nobel Nv Composicion de revestimiento en polvo que contiene una resina, un agente de curado y zinc.
KR950023662A (ko) * 1994-01-20 1995-08-18 박홍기 권취성이 우수한 고투명성 폴리에스터 필름의 제조방법
US6069221A (en) * 1997-08-01 2000-05-30 Ppg Industries Ohio, Inc. Powder coating compositions containing a carboxylic acid functional polyester
EP1359173B1 (fr) * 2002-04-29 2005-07-06 Dainippon Ink And Chemicals, Inc. Compositions solids polymérisables

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004065499A1 *

Also Published As

Publication number Publication date
US20060183838A1 (en) 2006-08-17
WO2004065499A1 (fr) 2004-08-05
ATA972003A (de) 2004-09-15
AT412555B (de) 2005-04-25

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