WO2000009618A1 - Composition en poudre pulverisable utile comme protection du bas de caisse ou comme agent d'etancheite - Google Patents

Composition en poudre pulverisable utile comme protection du bas de caisse ou comme agent d'etancheite

Info

Publication number
WO2000009618A1
WO2000009618A1 PCT/EP1999/005623 EP9905623W WO0009618A1 WO 2000009618 A1 WO2000009618 A1 WO 2000009618A1 EP 9905623 W EP9905623 W EP 9905623W WO 0009618 A1 WO0009618 A1 WO 0009618A1
Authority
WO
WIPO (PCT)
Prior art keywords
powder
coating
compositions
composition according
underbody protection
Prior art date
Application number
PCT/EP1999/005623
Other languages
German (de)
English (en)
Inventor
Dirk Reitenbach
Hanno Martin Becker
Karl Wesch
Original Assignee
Henkel Teroson 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7877275&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2000009618(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Henkel Teroson Gmbh filed Critical Henkel Teroson Gmbh
Priority to JP2000565057A priority Critical patent/JP2002522619A/ja
Priority to AU54190/99A priority patent/AU5419099A/en
Priority to KR1020017001833A priority patent/KR20010072433A/ko
Priority to BR9913642-2A priority patent/BR9913642A/pt
Priority to PL99346135A priority patent/PL346135A1/xx
Priority to EP99939784A priority patent/EP1123356A1/fr
Publication of WO2000009618A1 publication Critical patent/WO2000009618A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • 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
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0617—Polyalkenes
    • C09K2200/062—Polyethylene
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0625—Polyacrylic esters or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
    • C09K2200/0647—Polyepoxides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
    • C09K2200/065—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
    • C09K2200/0667—Polyamides, polyimides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/068—Containing also other elements than carbon, oxygen or nitrogen in the polymer main chain
    • C09K2200/0685—Containing silicon

Definitions

  • the present invention relates to a sprayable powdery composition based on thermoplastic polymer powders and their production and use as an underbody protection or sealant.
  • Objects made of metallic tools in vehicle, machine and device construction often have to be coated with abrasion-resistant coatings to maintain their usability.
  • vehicle construction especially in automobile construction, these are in particular the underbody area as well as the wheel arches and the so-called sills.
  • spot-welded or otherwise mechanically fixed seams must be sealed against the ingress of dust and water.
  • plastic materials ie dispersions of organic plastics in plasticizers, were used for this purpose in vehicle construction, which gel when heated to higher temperatures and harden when cooled.
  • the plastiso used for this are dispersions based on (meth) acrylate homo- or copolymers, styrene copolymers and in particular polyvinyl chloride homo- or copolymers in plasticizers.
  • These plastisol compositions often contain, in addition to other constituents, so-called extenders in the form of high-boiling hydrocarbons.
  • extenders in the form of high-boiling hydrocarbons.
  • Both the above-mentioned plasticizers and extenders are not very volatile, but a small part of both components always evaporates during gelling in the paint ovens in the automotive industry. This leads to emission or condensation problems in the paint ovens.
  • a so-called overspray can also be used. ie not completely avoid spraying the plastisol into the environment of the application booth despite modern process control. This saw Overspray must either be disposed of or returned to the product cycle through complex reprocessing processes.
  • compositions based on aqueous emulsions or dispersions have been proposed for this purpose, but these have led to application problems in the normal production process of vehicles, since the water during the process-related short drying times is not complete or only with the formation of bubbles in the Layer can evaporate.
  • aqueous dispersion or emulsion systems still contain small amounts of volatile organic solvents as so-called leveling agents or film-forming agents.
  • the object was therefore to provide underbody protection compositions and / or sealant compositions which are both free of solvents and plasticizers and free of water.
  • this object is achieved by the provision of sprayable, powdery compositions based on powdery thermoplastic polymers, these compositions being essentially free of water, volatile organic solvents and / or plasticizers which are liquid at room temperature.
  • These compositions contain one or more powdered thermoplastic polymers, at least some of the polymers containing polar, functional groups. These mixtures can also contain further organic or inorganic solid substances in powder form.
  • These compositions are applied to untreated or inorganically or organically pretreated and coated metal surfaces with electrostatic see procedures sprayed on. Due to this charge, the particles adhere immediately and even after several hours to vertical surfaces on these metals. This powder layer is melted by the action of elevated temperature and then gives a firmly adhering film on the surface.
  • US-A-4865882 describes a method for powder coating metallic articles.
  • the powder coating composition contains 80 to 97% of a modified polypropylene powder and 20 to 3% of a very low density polyethylene powder. These materials are mixed in the melt and formed into pellets in an extruder, which are then ground by cryomilling to a powder with an average grain size of approximately 150 ⁇ m.
  • the metallic objects to be coated such as baskets, shelves or automotive accessories, are then preheated to about 200 to 250 ° C and then immersed in a fluidized bed containing the powder coating composition for a few seconds to a few minutes. As a result, a layer of the powder composition is deposited on the hot metallic object. After coating, the metallic object is heated to 160 to 230 ° C. for a long time in order to melt the surface of the coating obtained uniformly. Underbody protective coatings or seam seals are not disclosed in this document.
  • US-A-5498783 describes a powder coating composition which is thermally crosslinked and made of a powdery mixture of a polyester resin with an average of two or more carboxyl groups. a first crosslinker which is reactive towards the carboxyl groups of the polyester resin. a further reactive acrylate copolymer and a second crosslinker, wherein the second crosslinker should be reactive towards the reactive functionality of the acrylate copolymer. Because of their strong thermal crosslinking, such compositions are only suitable for coating applications for which great hardness is required. These compositions are unsuitable for underbody protection applications or for seam seals for which a high degree of flexibility is required.
  • the powder coatings based on ethylene copolymers disclosed in EP-A-404960 an epoxy resin and a curing agent for the epoxy resin.
  • the ethylene copolymer should contain 0.5 to 10% by weight of structural elements which originate from a comonomer containing carboxylic anhydride and 3 to 40% by weight of a structure which originate from an olefinically unsaturated carboxylic acid as a monomer.
  • the powder coating composition disclosed there should be suitable for protecting metallic substrates against corrosion caused by stone chips.
  • normal thermoplastic resin compositions which do not crosslink highly thermally are not suitable for effecting a stone chip protection coating, since according to this teaching the thermoplastic resins have a low adhesive action on the substrate.
  • WO 87/02043 discloses a powder coating composition containing a solid powdered epoxy resin with an average epoxy functionality per molecule of greater than 2 and a solid hardener for this epoxy resin.
  • the solid epoxy resin is a multifunctional polyglycidyl ether of a bisphenol compound or a multifunctional polyglycidyl ether of a polyglycol-modified bisphenol. It is disclosed that the powder composition is directly phosphated. chromated or galvanized steel or sprayed on chromated aluminum to form a durable coating. No information is given on the suitability of such compositions for underbody protection applications.
  • WO 95/03344 describes a method for producing a plastic that can be used as a powder coating material and / or hot-melt adhesive.
  • polyolefins are subjected to a low-temperature plasma treatment in a frequency range from 30 kHz to 10 GHz.
  • a transparent, well-adhering coating can be applied to glass with powder coating materials produced in this way at a processing temperature of 160 ° C.
  • this composition is suitable for producing an underbody coating in the automotive industry or a coating for ship hulls.
  • such materials only have a sufficiently good adhesion to the metal sheet for a very short, limited period of time.
  • the substrates to be coated in automotive engineering or to be sealed or sealed with seam seals are steel sheets that are common in automotive engineering, which can be phosphated and or chromated for corrosion protection, galvanized steel sheets and steel sheets of the aforementioned type that are coated with electro-dip coating, the so-called KTL coatings are coated. Furthermore, sheets of aluminum, aluminum alloys and magnesium alloys have also recently been used, so that the coating compositions or sealants must achieve good adhesion to all of the abovementioned substrates.
  • the polymer powders to be used according to the invention are thermoplastics. These thermoplastics must have a melting range between 50 ° C and 180 ° C and at least a proportion of polar groups with a pronounced dipole character and low steric requirements in order to adequately adhere to any paint pre-coating or the metal surface. Act. It has been shown that coatings based on polymers which contain nitrogen-containing, polar groups such as polyurethanes or polyamides either as the base polymer or copolymer, as well as epoxies as the main component or as admixtures in the powder mixtures, have excellent adhesion to electrocoated (KTL) substrates or others Primers result.
  • KTL electrocoated
  • (meth) acrylic acid or (meth) acrylate copolymers are also achieved with (meth) acrylic acid or (meth) acrylate copolymers.
  • base polymers or copolymers with vinyl acetate content such as, for example, polyvinyl acetate copolymers or ethylene-vinyl acetate polymers, likewise cause adhesion to the abovementioned substrates.
  • the underbody protection compositions or sealant compositions according to the invention can be based on a thermoplastic powder polymer with polar groups, but mixtures of a plurality of thermoplastic polymers can also be used, at least some of the polymers having to carry polar groups.
  • the polar functional groups can be selected from hydroxyl, amino, epoxy, carboxy, ester, amide, urethane, isocyanurate, biuret. Allophanate. blocked isocyanate, silanol, or alkoxysilane groups.
  • the poly- ⁇ -olefins should preferably be prepared by a corona or plasma pretreatment.
  • a good and dense fusion of the polymer particles must be achieved in the baking process of the coatings according to the invention, which is why only the aforementioned thermoplastic materials are suitable.
  • powder mixtures for example made of polyurethanes or polyamides plus epoxides, there is strong evidence that the crosslinking reaction of the polymer matrix with one another is not the primary decisive factor. but that the primary reaction with the KTL-Un- surface (cathaphoretic dip painting) or with the metallic substrate. This results in good adhesion of the underbody protection compositions according to the invention to the substrate, and also ensures that the underbody protection composition does not crosslink excessively, since such a high degree of crosslinking would lead to embrittlement of the coating.
  • the main binder components of powder coatings are particularly suitable for the compositions according to the invention, as long as no or only a very small amount of crosslinking agents are added to them, which are normally absolutely necessary for powder coating applications.
  • binder systems are mentioned, inter alia, by DA B expertse, “powder coatings, chemistry, manufacture and application * ', SITA Technology, London, 1990, in particular chapters 2 to 4. Z. B.
  • One-component epoxy powder coatings with a softening point above 50 ° C powder coating binder based on polyurethanes with a melting range between 80 and 100 ° C, melt index (MFI 190 / 2.16 according to DIN 53735) 30-40 g / 10min , Polyethylene-acrylate copolymer powder with a melt index between 5 and 15 g / lOmin, thermoplastic polyurethanes, polyamide powder, with a melt index between 15 and 40 g / lOmin, ethylene-vinyl acetate copolymer powder and pretreated LDPE (low density polyethylene).
  • compositions according to the invention can also contain finely divided inorganic and / or organic (polymeric) fillers. Contain pigments and / or anti-aging agents.
  • suitable inorganic fillers are finely divided calcium carbonates in the form of various ground or precipitated chalks, heavy spar, aluminum oxides. Silicates. Carbon black can be used as color pigments. Iron oxides. Titanium di oxide. Zinc oxide and similar color pigments known per se. It may be expedient to use materials which have been surface-treated for both the fillers and the pigments.
  • All known anti-aging agents for polymers from the class of UV protective agents against the photo- or photooxidative degradation of the polymers can be used as anti-aging agents. Antioxidants against thermal or thermo-oxidative degradation as well as protective agents against hydrolytic degradation or anti-ozone agents against the attack by ozone are used. The type and amount of anti-aging agents depend on the chemical structure of the polymers used.
  • compositions according to the invention can be sprayed without problems as powder coating materials, it is important that all powder components have an average grain size of less than 700 ⁇ m, preferably less than 200 ⁇ m and very particularly preferably less than 80 ⁇ m. In addition, it must be ensured that the powder components have no surface tack at temperatures below about 30 to 40 ° C. in order to avoid caking of the powder particles before the spray application.
  • the applicability means volume throughput per unit of time and sufficient dry adhesion on a metallic surface.
  • the compositions must meet the following requirements:
  • a low consumption of conveying air is a basic requirement for a uniform layer thickness and to prevent the powder that has already been applied from being blown away.
  • Such a suitable method is based on swirling the powder components in the hot air stream slightly below the melting temperature of the main polymer. This temperature can be selected differently in accordance with the additives and the second polymer.
  • a method is possible in which swirling is carried out between 2 and 20 ° C. below the melting temperature of the main polymer. The best results are achieved at a temperature range between 5 and 10 ° C below the melting range. Slightly sintering the surface of the powder mixtures prevents the polymer particles from sticking to one another, so that the polymer powders can be easily fluidized, conveyed and sprayed.
  • the procedure is as follows: the premixed powders are blown into a reactor and swirled and subjected to a hot air stream, then this powder-air mixture is discharged through a nozzle and cooled in a cold air stream.
  • powder coatings are sprayed using the corona charging method and the tribo method.
  • the compositions according to the invention can be applied using the latter two application methods.
  • the tribo process is particularly preferred, since it enables a better grip and thus a better coating to be achieved at corners and edges.
  • the application device, powder circuit and the powder quality must be coordinated as well as possible so that there are no system-related interruptions in work.
  • the powder In addition to the above-mentioned good fluidizability of the powder composition, the powder must generate a minimum friction charge in the tribo process at a predetermined air speed.
  • test devices e.g. B. a current-charge-time measuring device (IQT measuring device).
  • IQT measuring device A minimum leakage current of 1.7 to 2.5 ⁇ A with an air volume of 1.8 Nm 3 / h (standard cubic meters per hour) should be achieved.
  • air is used as the conveying medium in this spraying method; air is required for conveying as well as for metering and for generating the tribocharging.
  • care must be taken that the air volume for conveying, metering and tribo air is as small as possible. This should be a maximum of 7.5 Vh.
  • the fine grain fraction of the powder ie the fraction below 8 ⁇ m, should be as small as possible.
  • the amount of conveying air in particular is also desirable in order to minimize wear on the application devices due to abrasion. This results in a uniform powder output when there is good fluidization in the powder storage container.
  • the underbody protection coatings according to the present invention show abrasion values which are far above the level known today. This enables a significant reduction in the layer thickness of the coating.
  • the coating compositions according to the invention are distinguished by a significantly reduced specific weight compared to the PVC plastisols, so that a significant weight reduction of a vehicle is achieved by both factors.
  • these seam seals can also be cured with the help of lasers.
  • a powder mixture was made from the following ingredients:
  • Polyepoxide powder (softening range> 50 ° C) 49.7% by weight
  • Polyethylene powder low density 48.5% by weight
  • the aforementioned powder mixture was ground to different particle size ranges and then swirled by swirling the powder components in the hot air stream slightly below the melting temperature of the main polymer and then discharged through a nozzle and cooled in the cold air stream.
  • the following grain size ranges were examined to determine the best applicability:
  • Example 10 Polyethylene acrylate copolymer powder. MFI 9g / 10min
  • Example 11 Epoxy Powder, Melting Range> 50 ° C. (DSC Method, Differential Scanning Calorimetry)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Sealing Material Composition (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne des compositions polymères thermoplastiques en poudre, à base de polymères comportant des groupes fonctionnels polaires, qui conviennent pour fabriquer des compositions en poudre pulvérisable utiles comme protection du bas de caisse ou comme agent d'étanchéité. Ces compositions, sensiblement exemptes d'eau, de solvants organiques volatils et/ou de plastifiants fluides, s'appliquent sur le substrat à recouvrir ou à rendre étanche selon la technique connue des laques en poudre. Elles s'utilisent dans la construction d'automobiles pour protéger le bas de caisse ou pour assurer l'étanchéité des joints.
PCT/EP1999/005623 1998-08-12 1999-08-03 Composition en poudre pulverisable utile comme protection du bas de caisse ou comme agent d'etancheite WO2000009618A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2000565057A JP2002522619A (ja) 1998-08-12 1999-08-03 吹付け可能な粉末状底部保護用組成物またはシーラント組成物
AU54190/99A AU5419099A (en) 1998-08-12 1999-08-03 Sprayable powder composition for use as underbody protection or sealant
KR1020017001833A KR20010072433A (ko) 1998-08-12 1999-08-03 차체의 하부 보호제 또는 밀봉제용 분무성 분말 조성물
BR9913642-2A BR9913642A (pt) 1998-08-12 1999-08-03 Composição em forma de pó, pulverizável, para proteção do fundo inferior ou agente de vedação
PL99346135A PL346135A1 (en) 1998-08-12 1999-08-03 Sprayable powder composition for use as underbody protection or sealant
EP99939784A EP1123356A1 (fr) 1998-08-12 1999-08-03 Composition en poudre pulverisable utile comme protection du bas de caisse ou comme agent d'etancheite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19836491A DE19836491C1 (de) 1998-08-12 1998-08-12 Sprühbare pulverförmige Zusammensetzung für Unterbodenschutz oder Dichtmittel sowie Verfahren zur Beschichtung von Kraftfahrzeugen oder Kraftfahrzeugteilen
DE19836491.1 1998-08-12

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US09762737 A-371-Of-International 2001-06-14
US10/427,099 Continuation US20030207026A1 (en) 1998-08-12 2003-04-30 Sprayable powderous composition for underbody protection or sealant

Publications (1)

Publication Number Publication Date
WO2000009618A1 true WO2000009618A1 (fr) 2000-02-24

Family

ID=7877275

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/005623 WO2000009618A1 (fr) 1998-08-12 1999-08-03 Composition en poudre pulverisable utile comme protection du bas de caisse ou comme agent d'etancheite

Country Status (12)

Country Link
EP (1) EP1123356A1 (fr)
JP (1) JP2002522619A (fr)
KR (1) KR20010072433A (fr)
CN (1) CN1312842A (fr)
AR (1) AR021761A1 (fr)
AU (1) AU5419099A (fr)
BR (1) BR9913642A (fr)
DE (1) DE19836491C1 (fr)
PL (1) PL346135A1 (fr)
TR (1) TR200100473T2 (fr)
WO (1) WO2000009618A1 (fr)
ZA (1) ZA200101108B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19962020A1 (de) * 1999-12-22 2001-07-05 Volkswagen Ag Verfahren zur Erzeugung einer Schutzbeschichtung auf einem Bauteil
DE102012210529A1 (de) * 2012-06-21 2013-12-24 Röchling Automotive AG & Co. KG KFZ-Unterbodenverkleidung mit aufgesprühtem Steinschlagschutz
CN114316754B (zh) * 2021-12-24 2023-04-04 老虎表面技术新材料（清远）有限公司 一种防滑粉末涂料组合物及其涂层

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211691A (en) * 1977-02-23 1980-07-08 E. I. Du Pont De Nemours And Company Thermoplastic powder coating systems
DE3644208A1 (de) * 1985-12-25 1987-07-02 Toyo Boseki Thermoplastische harzmasse
WO1995003344A1 (fr) * 1993-07-26 1995-02-02 Gvu Gesellschaft Für Verfahrenstechnik-Umweltschutz Mbh Procede de fabrication d'une matiere plastique s'utilisant comme materiau de recouvrement pulverulent et/ou comme colle thermofusible

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA867363B (en) * 1985-09-27 1988-05-25 Dow Chemical Co Epoxy resin powder coating composition
JPH01297174A (ja) * 1988-05-26 1989-11-30 Sumitomo Seika Chem Co Ltd 金属製品の粉体塗装方法
WO1990005168A1 (fr) * 1988-11-11 1990-05-17 Shinto Paint Company, Limited Preparation a base de resine thermodurcissable et substance de revetement en poudre la contenant
US5498783A (en) * 1994-08-22 1996-03-12 Basf Corporation Powder coating composition resistant to overspray incompatibility defects

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211691A (en) * 1977-02-23 1980-07-08 E. I. Du Pont De Nemours And Company Thermoplastic powder coating systems
DE3644208A1 (de) * 1985-12-25 1987-07-02 Toyo Boseki Thermoplastische harzmasse
WO1995003344A1 (fr) * 1993-07-26 1995-02-02 Gvu Gesellschaft Für Verfahrenstechnik-Umweltschutz Mbh Procede de fabrication d'une matiere plastique s'utilisant comme materiau de recouvrement pulverulent et/ou comme colle thermofusible

Also Published As

Publication number Publication date
JP2002522619A (ja) 2002-07-23
AU5419099A (en) 2000-03-06
TR200100473T2 (tr) 2001-07-23
BR9913642A (pt) 2001-06-05
ZA200101108B (en) 2002-07-31
AR021761A1 (es) 2002-08-07
DE19836491C1 (de) 2000-01-27
EP1123356A1 (fr) 2001-08-16
CN1312842A (zh) 2001-09-12
PL346135A1 (en) 2002-01-28
KR20010072433A (ko) 2001-07-31

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