WO2012024594A2 - Method for forming a multilayer coating - Google Patents
Method for forming a multilayer coating Download PDFInfo
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- WO2012024594A2 WO2012024594A2 PCT/US2011/048434 US2011048434W WO2012024594A2 WO 2012024594 A2 WO2012024594 A2 WO 2012024594A2 US 2011048434 W US2011048434 W US 2011048434W WO 2012024594 A2 WO2012024594 A2 WO 2012024594A2
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Classifications
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- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/57—Three layers or more the last layer being a clear coat
- B05D7/572—Three layers or more the last layer being a clear coat all layers being cured or baked together
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- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- 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
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
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- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C09D167/025—Polyesters derived from dicarboxylic acids and dihydroxy compounds containing polyether sequences
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- 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
- B05D2502/00—Acrylic polymers
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- 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
- B05D2508/00—Polyesters
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- 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
- B05D2520/00—Water-based dispersions
- B05D2520/05—Latex
Definitions
- the present disclosure is directed to a method of forming a multilayer coating on a substrate.
- the method relates to the wet-on-wet-on-wet application of a waterborne primer composition, a waterborne basecoat composition and a clearcoat composition followed by the simultaneous curing of all three applied layers.
- the waterborne primer composition, the waterborne basecoat composition or both compositions comprise a waterborne or water dispersible polyester.
- Coating systems for automobiles normally comprise a multiplicity of coatings applied to a steel substrate.
- the steel is treated with a rust-proofing phosphate layer, then a cathodic electrocoat primer for additional corrosion protection is applied and cured.
- a layer of a primer composition is then applied and cured to smooth the surface and also to provide chip resistance to the coating system during the normal course of driving.
- one or more layers of a basecoat composition is applied, with solid color and/or flake pigments to provide the color area for the substrate.
- a clearcoat composition to protect and preserve the attractive aesthetic qualities of the finish on the vehicle even on prolonged exposure to the environment or weathering.
- Application of the basecoat and the clearcoat compositions is normally achieved by wet-on-wet application, which means that a layer of the clearcoat composition is applied to the applied basecoat composition without curing the basecoat layer prior to the application of the clearcoat composition.
- the applied layer of basecoat composition may be subjected to a flash dry step prior to the application of the clearcoat. Once both the basecoat and clearcoat compositions have been applied, they are subsequently heated to a sufficient temperature to form a dried and cured finish.
- the applied layer of primer composition is cured by heating before the application of the basecoat and clearcoat compositions.
- cured primer compositions have been used not only to provide a smooth surface, but also to also prevent intermixing with the overlying basecoat and avoid disrupting the appearance of the overall finish.
- Resistance to intermixing (sometimes referred to as "strike-in" resistance) is especially important for the appearance of basecoats containing metallic pigment flakes. Any disturbance of the orientation of the metallic pigment flakes after application over the primer composition can detract from the metallic effect of the finish. Therefore, care must be taken to ensure that the metal pigment flakes are not disturbed after application.
- the present disclosure is directed to a method forming a multilayer coating on a substrate wherein the method is a 3-wet method comprising the steps of;
- a polyester is present in the waterborne primer composition, in the waterborne basecoat composition or is present in both the waterborne primer composition and the waterborne basecoat composition;
- polyester is a water soluble or water dispersible polyester that is the reaction product of a monomer mixture wherein the monomer mixture comprises;
- compositions to a substrate followed by the simultaneous curing of all three coating compositions The curing of the applied layers is the first curing for each of the applied compositions.
- flash dry means a step that removes at least a portion of the solvent from one or more applied layers of coating composition.
- the flash dry step is not intended to begin the curing process.
- the flash dry step can remove at least 70 percent by weight of the liquid carrier from the applied coating composition. In other embodiments, the flash dry step can remove at least 80 percent by weight of the liquid carrier.
- one component coating composition refers to a coating composition that comprises a film forming binder wherein the individual constituents of the film forming binder can be stored together at ambient temperatures (equal to or less than 25°C) prior to use without crosslinking.
- Typical one component coating compositions can include hydroxyl functional oligomers and/or polymers and melamine resins.
- Other one component coating compositions can include those compositions wherein the film forming binders have both epoxy and acid functional groups.
- two component coating composition refers to a coating composition that comprises a film forming binder wherein the individual constituents of the film forming binder cannot be stored together prior to their use.
- Typical two component coating compositions comprise, as a first component, hydroxyl functional oligomers and/or polymers and as a second component, polyisocyanate functional molecules. When combined, the hydroxyl and isocyanate functional groups can begin to react even at ambient temperatures.
- film forming binder means those components that crosslink with one another to become a part of the final crosslinked network of the coating composition.
- Components that form a part of the coating composition but do not form a part of the crosslinked network such as, for example, pigments, stabilizers etc are not considered part of the film forming binder.
- the term "essentially free from” means that a particular component is present at levels of less than 5 percent by weight. In other embodiments, the particular component is present at levels of less than 1 percent by weight. In still further embodiments, the particular component is present at levels of less than 0.1 percent by weight, wherein the percentages by weight are based on the total composition.
- the present disclosure is directed to the 3-wet application of one or more layers of a waterborne primer composition, one or more layers of waterborne basecoat composition, followed by one or more layers of clearcoat composition.
- the applied layer of primer composition is subjected to a flash dry step prior to the application of the layer of waterborne basecoat composition.
- the applied layer of waterborne basecoat composition is subjected to a flash dry step prior to the application of the clearcoat composition.
- the applied layer of clearcoat composition is subjected to a flash dry step prior to the simultaneous curing of the applied layers.
- the method for the 3-wet application of a waterborne primer composition, a waterborne basecoat composition and a clearcoat composition can comprise the use of a polyester in the waterborne primer composition, in the waterborne basecoat composition or in both of the waterborne primer and basecoat compositions.
- the use of this polyester allows the wet-on-wet-on-wet application while still providing the properties necessary for the rigorous demands of the automotive industry.
- the polyester is a water soluble or water dispersible polyester that is the reaction product of a monomer mixture, wherein the monomer mixture comprises or consists essentially of
- the polyester can have a weight average molecular weight in the range of from 25,000 to 85,000, a number average weight in the range of from 2,000 to 8,000, an acid number in the range of from 2 to 35 (mg KOH/g polyester).
- the weight average molecular weight is in the range of from 35,000 to 75,000, the number average molecular weight is in the range of from 4,000 to 7,000 and the acid number is in the range of from 4 to 30.
- the weight average molecular weight is in the range of from 45,000 to 65,000, the number average molecular weight is in the range of from 5,000 to 6,000 and the acid number is in the range of from 4 to 25.
- polyalkylene glycol monoalkyl ether component may be represented by the formula:
- H(OX)n-OR where X is -CH 2 CH 2 -, -CH(CH 3 )CH 2 -, -CH 2 CH 2 CH 2 -, or a combination thereof, n is an integer of 7 to 25, and R is an alkyl group of 1 to 4 carbon atoms.
- the polycarboxylic acid can include, for example, aromatic, aliphatic, and cycloaliphatic carboxylic acids, such as 1 ,4-cyclohexane dicarboxylic acid, 1 ,3- cyclohexane dicarboxylic acid, hexahydro-4-methylphthalic acid; tetrahydrophthalic acid, phthalic acid, isophthalic acid, trimellitic acid, adipic acid, azelaic acid, sebasic acid, succinic acid, maleic acid, glutaric acid, malonic acid, pimelic acid, suberic acid, fumaric acid, itaconic acid or a combination thereof.
- Esters and anhydrides of the above acids can also be employed and are encompassed by the term polycarboxylic acids.
- Suitable polyhydroxyl alcohols can include diols, triols, and higher alcohols. In some embodiments, they can include trimethylolpropane, trimethylolethane, tris(hydroxyethyl) isocyanurate, glycerine, pentaerythritol, neopentyl glycol, dimethylol hydantoin, ethylene glycol, propylene glycol, 1 ,4-butylene glycol, diethylene glycol, dipropylene glycol, 1 ,4-cyclohexane dimethanol, neopentyl glycol monohydroxypivalate, 1 ,3-propane diol, 1 ,6-hexanediol, dimethylol propionic acid or combination thereof.
- any of the above described polyesters can be prepared by conventional condensation polymerization techniques using the previously described monomer mixtures. Polymerization is continued until the desired acid number and molecular weight are reached.
- the polyester is the reaction product of a monomer mixture wherein the monomer mixture comprises or consists essentially of neopentyl glycol, trimethylol propane, methoxy polyethylene glycol, isophthalic acid, adipic acid and phthalic anhydride.
- the base can be an amine.
- the base can be ammonia, alkyl amines, dialkyl amines, trialkyl amines, hydroxy functional alkyl amines or a combination thereof.
- the base can be 2-amino-2-methyl-1-propanol, diethanol amine, triethanol amine, triethyl amine, n-methyl ethanol amine, amino methyl propanol, amino ethyl propanol, diethyl amine or a combination thereof.
- the waterborne primer composition comprises a film forming primer binder wherein the film forming primer binder comprises or consists essentially of in the range of from 20 to 90 percent by weight of the polyester and in the range of from 10 to 80 percent by weight of a crosslinking agent.
- the film forming primer binder comprises or consists essentially of in the range of from 25 to 75 percent by weight of the polyester and in the range of from 25 to 75 percent by weight of a crosslinking agent
- the film forming primer binder can comprise in the range of from 30 to 70 percent by weight, of the polyester and in the range of from 30 to 70 percent by weight of a crosslinking agent. The percentages by weight are based on the total weight of the film forming primer binder.
- film forming primer binders can be used with the polyester and the crosslinking agent.
- suitable other film forming primer binders can include, for example, polyurethanes, polyethylene glycol, polypropylene glycol, polytrimethylene ether glycol, linear and/or branched acrylic polyols, acrylic latexes, aqueous latexes, acrylic microgels, aqueous microgels or a combination thereof.
- the other film forming primer binders, if present, can be present in the range of from 1 to 30 percent by weight.
- the other film forming primer binders can be present in the range of from 5 to 25 percent by weight, and in still further embodiments, can be present in the range of from 10 to 20 percent by weight. All percentages by weight are based on the total weight of the film forming primer binder.
- Suitable crosslinking agents can include, for example, melamines, amino resins, polyisocyanates, blocked polyisocyanates or a combination thereof.
- the waterborne primer coating composition is free from or essentially free from acrylic latexes, aqueous latexes, acrylic microgels, aqueous microgels or combinations thereof.
- the waterborne primer coating composition can further comprise additives that are common for primers.
- Suitable additives can include, for example, pigments, rheology control agents, UV absorbers, light stabilizers, catalysts, surfactants, antifoam agents or combinations thereof.
- Pigments suitable for use in a primer composition are well known in the art. Suitable pigments can include, for example, carbon black, titanium dioxide, iron oxides, silicon dioxide, zinc phosphate, barium sulfate, other colorants common in the art or a combination thereof.
- the pigment to film forming binder ratio sometimes called the pigment to binder ratio or p/b ratio can be in the range of from 20/100 to 200/100. In other embodiments, the p/b ratio can be in the range of from 30/100 to 150/100, and, in still further embodiments, can be in the range of from 40/100 to 100/100.
- the coating compositions can contain from about 0.1 to 2.0%, based on the weight of film forming binder, of a strong acid catalyst, or amine salt thereof.
- the catalyst is amino- methyl propanol blocked dodecyl benzyl sulfonic acid, available as NACURE ® 5225 or 3525 acid catalysts both available from King Industries, Norwalk, Connecticut. Phosphoric acid, and salts thereof, are also effective catalysts.
- the waterborne primer coating composition can have a solids content in the range of from 25 to 80 percent by weight. In other embodiments, the solids content can be in the range of from 35 to 70 percent by weight and in still further
- the solids content can be in the range of from 40 to 60 percent by weight.
- solids content means the total amount of non- water and non-solvent ingredients in the coating composition.
- the waterborne primer coating composition can have liquid carrier ingredients other than water. In some embodiments, the liquid carrier is greater than 50 percent by weight water, and in other embodiments, the liquid carrier is greater than 60 percent by weight water, based on the total amount of liquid carrier. Waterborne Basecoat
- the waterborne basecoat composition comprises a film forming basecoat binder wherein the film forming basecoat binder comprises or consists essentially of in the range of from 10 to 60 percent by weight of the polyester, in the range of from 0 to 70 percent by weight of an acrylic latex and in the range of from 10 to 50 percent by weight of a crosslinking agent.
- the film forming basecoat binder comprises or consists essentially of in the range of from 15 to 55 percent by weight of the polyester, in the range of from 10 to 60 percent by weight of an acrylic latex and in the range of from 15 to 40 percent by weight of a crosslinking agent
- the film forming basecoat binder can comprise or consist essentially of in the range of from 20 to 50 percent by weight of the polyester, in the range of from 20 to 50 percent by weight of an acrylic latex and in the range of from 17 to 25 percent by weight of a crosslinking agent. The percentages by weight are based on the total weight of the film forming basecoat binder.
- the waterborne basecoat composition can utilize the same or a different polyester than was used in the waterborne primer composition. If the polyester is not the same polyester as was used in the waterborne primer composition, it is produced under the parameters previously discussed.
- the waterborne basecoat composition and the waterborne primer composition are formulated differently due to the need for these two compositions to resist intermixing and to provide the necessary properties that primers and basecoats are expected to provide to a multilayer coating.
- the acrylic latex can comprise in the range of from 0 to 70 percent by weight of the waterborne basecoat composition, wherein the percentage by weight is based on the total amount of film forming binder.
- Acrylic latexes are well known in the art and can be produced by the polymerization of a monomer mixture according any of the known methods.
- Suitable monomers that can be used in the monomer mixture include (meth)acrylic acids and esters, for example, (meth)acrylic acid, methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, and 2-ethylhexyl (meth)acrylate, hydroxyalkyl (meth)acrylates, hydroxyethyl (meth)acrylates, hydroxypropyl (meth)acrylates or a combination thereof.
- Suitable other monomers can include vinyl acetate, vinyl propionate, acrylonitrile, styrene and vinyl toluene.
- Acrylic latex resins typically have internal crosslinking.
- a portion of the monomer mixture can include monomers that have two polymerizable ethylenically unsaturated groups such as, for example, ethylene glycol di(meth)acrylate, 1 ,6-hexane diol di(meth)acrylate, allyl (meth)acrylate or divinylbenzene.
- the monomer mixture can include monomers carrying pairs of chemical groups which can be caused to react with one another either during or after the polymerization reaction, such as epoxy and carboxyl, for example, glycidyl methacrylate and (meth)acrylic acid; anhydride and hydroxyl, for example, maleic anhydride and hydroxyethyl (meth)acrylate; or isocyanate and hydroxyl, for example, 2- isocyanatoethyl (meth)acrylate and hydroxyethyl (meth)acrylate.
- epoxy and carboxyl for example, glycidyl methacrylate and (meth)acrylic acid
- anhydride and hydroxyl for example, maleic anhydride and hydroxyethyl (meth)acrylate
- isocyanate and hydroxyl for example, 2- isocyanatoethyl (meth)acrylate and hydroxyethyl (meth)acrylate.
- film forming basecoat binders can be used with the polyester and the optional acrylic latex.
- suitable other film forming basecoat binders can include, for example, polyurethanes, polyethylene glycol, polypropylene glycol, polytrimethylene glycol linear and branched acrylic polyols, aqueous latexes, acrylic microgels, aqueous microgels or combinations thereof.
- Crosslinking agents can also be used as part of the film forming basecoat binder. Suitable crosslinking agents can include, for example, melamines, amino resins, polyisocyanates, blocked polyisocyanates or a combination thereof.
- the waterborne basecoat composition can further comprise additives that are common for basecoats.
- Suitable additives can include, for example, pigments, rheology control agents, UV absorbers, light stabilizers, catalysts, antifoam agents or combinations thereof.
- Pigments suitable for use in a waterborne basecoat composition are well known in the art and can include, for example, carbon black, titanium dioxide, iron oxides, silicon dioxide, zinc phosphate, barium sulfate, azo pigments, phthalocyanine pigments, quinacridone pigments, pyrrolopyrrole pigments, perylene pigments, pearlescent pigments, metal oxide coated metal pigments, titanium dioxide coated aluminum, coated mica or pearl flakes, titanium dioxide coated mica, graphite effect pigments, plate-like iron oxide, plate-like copper phthalocyanine pigments or a combination thereof.
- the waterborne basecoat composition can have a p/b ratio in the range of from 2/100 to 150/100.
- the p/b ratio can be in the range of from 3/100 to 100/100 and , in still further embodiments, can be in the range of from 8/100 to 75/100.
- the waterborne basecoat composition can have a solids content in the range of from 10 to 50 percent by weight. In other embodiments, the solids content can be in the range of from 15 to 40 percent by weight and in still further embodiments, the solids content can be in the range of from 17 to 35 percent by weight. As used herein, the phrase "solids content" means the total amount of non-water and non- solvent ingredients in the coating composition.
- the waterborne primer coating composition can have liquid carrier ingredients other than water. In some embodiments, the liquid carrier is greater than 50 percent by weight water, and in other embodiments, the liquid carrier is greater than 60 percent by weight water, based on the total amount of liquid carrier.
- the clearcoat composition can be any waterborne, solventborne or powder clearcoat compositions that are commercially available.
- the clearcoat composition can be a one component clearcoat composition.
- the clearcoat composition can be a two component clearcoat composition.
- the clearcoat composition can be a one component epoxy acid clearcoat that is solventborne or waterborne.
- the clearcoat composition is a silane clearcoat, an acrylosilane clearcoat, a hydroxyl silane clearcoat or a blocked isocyanate/melamine clearcoat.
- a suitable example of a one component clearcoat composition is GEN IV ® clearcoat available from DuPont, Wilmington, Delaware.
- the disclosed coating compositions can be applied via a 3-wet application method.
- the 3-wet method comprises the steps of;
- the method comprises the step of flash drying the applied layer of waterborne primer composition prior to the application of the waterborne basecoat composition.
- the flash drying step can be done at ambient temperature for a time period of 1 second to 30 minutes or more at temperatures in the range of from ambient to 100°C.
- the flash drying step can be performed first at ambient temperature for 1 second to about 20 minutes followed by heating at a temperature in the range of from above ambient temperature to about 100°C for 1 second to 20 minutes.
- the method can further comprise the step of flash drying the applied layer of waterborne basecoat composition prior to the application of the clearcoat composition.
- the flash drying step can be done at ambient temperature for a time period of 1 second to 30 minutes or more at temperatures in the range of from ambient to 100°C.
- the flash drying step can be performed first at ambient temperature for 1 second to about 20 minutes followed by heating at a temperature in the range of from above ambient temperature to about 100°C for 1 second to 20 minutes.
- the method can further comprise the step of flash drying the applied layer of clearcoat composition prior to the step of heating the applied layers of coating compositions.
- the flash drying step can be done at ambient temperature for a time period of 1 second to 30 minutes or more at temperatures in the range of from ambient to 100°C. In still further embodiments, the flash drying step can be performed first at ambient temperature for 1 second to about 20 minutes followed by heating at a temperature in the range of from above ambient temperature to about 100°C for 1 second to 20 minutes.
- the layers of waterborne primer composition, waterborne basecoat composition and clearcoat composition have been applied, the layers are then heated to cure the coating compositions.
- the heating step is performed at a temperature that can at least partially remove any remaining liquid carrier and to cure the applied layers of coating compositions.
- the heating step is carried out at an oven temperature in the range of from 130°C to 200°C.
- the substrate can have a residence time in the oven from 5 minute to 60 minutes.
- the temperatures described for the flash dry and for the heating steps refers to the temperature of the oven or the heating device that the coated substrate is passed through or placed in during the particular step.
- Suitable substrates include, for example, automobile bodies, any and all items manufactured and painted by automobile sub-suppliers, frame rails, commercial trucks and truck bodies, including but not limited to beverage bodies, utility bodies, ready mix concrete delivery vehicle bodies, waste hauling vehicle bodies, and fire and emergency vehicle bodies, as well as any potential attachments or components to such truck bodies, buses, farm and construction equipment, truck caps and covers, trailers, recreational vehicles, including but not limited to, motor homes, campers, conversion vans, vans, pleasure vehicles, pleasure craft snow mobiles, all terrain vehicles, personal watercraft, motorcycles, boats and aircraft; coil coating; railroad cars; printed circuit boards; machinery; OEM tools; signage; fiberglass structures; sporting goods; and sporting equipment.
- Hexyl CELLOSOLVE®, butyl CELLOSOLVE® and DOWANOL® PNB solvents are available from Dow Chemical, Midland, Michigan.
- ARCOL® PPG-425 polyether is available from Bayer Materials Science, Pittsburgh, Pennsylvania.
- CYMEL® 303 melamine is available from Cytec Industries, Stamford, Connecticut.
- FOAMSTAR® 1-300 is available from Cognis North America, Cincinati, Ohio.
- HOSTAVIN® 3310 UV absorber is available from the Clariant Corporation, Charlotte, North Carolina.
- AMP® 95 is available from Ashland, Columbus, Ohio.
- ISOPAR® H is available from ExxonMobil, Houston, Texas.
- VISCALEX® HV30 acrylic is available from BASF, Florham Park, New Jersey.
- LAPONITE® silicate is available from Southern Clay Products, Gonzales, Texas.
- An intermediate polyester was prepared by reacting 512.95 grams of 1 ,6- hexane diol, 342.105 grams of adipic acid and 180.37 grams of isophthalic acid at a maximum temperature of 250°C. Water was collected from the reaction mixture until an acid number of 3 was reached. The polyester was cooled and used as is.
- a polyester was prepared by forming a mixture of 359.9 parts of neopentyl glycol, 134.2 parts of trimethylol propane, 104.5 parts of methoxy polyethylene glycol (Mw 550), 103.8 parts of isophthalic acid, 438.5 parts of adipic acid, 103.6 parts of phthalic acid in 248.9 parts of xylene. The mixture was heated to 230°C and the temperature was maintained at 230°C to 240°C until 140.5 parts of water was distilled off. The mixture was cooled to 100°C and 129.5 parts of DOWANOL ® DPM and 129.5 parts of butanol were added. The acid number of the polyester was determined to be 9.12, the weight average molecular weight was 56,225 and the number average molecular weight was 8430.
- a polyester was prepared by forming a mixture of 268.98 parts of neopentyl glycol, 283.1 parts of adipic acid, 67.47 parts of methoxy polyethylene glycol, 86.62 parts of trimethylol propane, 66.88 parts of phthalic anhydride, and 67.04 parts of isophthalic acid. The mixture was heated to 235°C and water was removed by distillation. When the acid number was between 6 and 7, the reaction mixture was cooled to 160°C and 84.71 parts of dipropylene glycol methyl ether was added. The reaction was further cooled to 100°C and 84.71 parts of butanol was added. The polyester was determined to have a weight average molecular weight of 6039 and a number average molecular weight of 1914.
- An acrylic polymer is produced by polymerizing a monomer mixture comprising 2.3 parts of allyl methacrylate, 35.6 parts of methyl methacrylate, 58.2 parts of butyl acrylate, 2.3 parts of hydroxyl ethyl acrylate and 1.6 parts of methacrylic acid.
- the acrylic latex had a solids content of 35 percent by weight in water.
- Each of the waterborne basecoat compositions was applied using an electrostatic turbobell spray gun to a dry film build of 15 micrometers.
- the applied layer of basecoat composition was flash dried for 90 seconds at ambient temperature and then for 3 minutes at 82°C. The panels were then cooled to room temperature prior to application of the clearcoat composition.
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Abstract
Description
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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US13/816,940 US9005712B2 (en) | 2010-08-20 | 2011-08-19 | Method for forming a multilayer coating |
CA2807175A CA2807175A1 (en) | 2010-08-20 | 2011-08-19 | Method for forming a multilayer coating |
KR1020137006916A KR20130097763A (en) | 2010-08-20 | 2011-08-19 | Method for forming a multilayer coating |
MX2013002033A MX2013002033A (en) | 2010-08-20 | 2011-08-19 | Method for forming a multilayer coating. |
EP11818831.7A EP2605863B1 (en) | 2010-08-20 | 2011-08-19 | Method for forming a multilayer coating |
BR112013003834-9A BR112013003834B1 (en) | 2010-08-20 | 2011-08-19 | method for forming a multilayered coating on a substrate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US37551610P | 2010-08-20 | 2010-08-20 | |
US61/375,516 | 2010-08-20 |
Publications (2)
Publication Number | Publication Date |
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WO2012024594A2 true WO2012024594A2 (en) | 2012-02-23 |
WO2012024594A3 WO2012024594A3 (en) | 2012-04-05 |
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PCT/US2011/048434 WO2012024594A2 (en) | 2010-08-20 | 2011-08-19 | Method for forming a multilayer coating |
Country Status (7)
Country | Link |
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US (1) | US9005712B2 (en) |
EP (1) | EP2605863B1 (en) |
KR (1) | KR20130097763A (en) |
BR (1) | BR112013003834B1 (en) |
CA (1) | CA2807175A1 (en) |
MX (1) | MX2013002033A (en) |
WO (1) | WO2012024594A2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10071398B2 (en) * | 2014-10-03 | 2018-09-11 | Axalta Coating Systems IP Co. LLC | Multi-layer coated substrates and methods for forming multi-layer coatings on substrates |
US20180304307A1 (en) * | 2015-05-22 | 2018-10-25 | Hewlett-Packard Development Company, L.P. | Water-Borne Coating Compositions |
US11254991B2 (en) * | 2019-07-09 | 2022-02-22 | Lear Corporation | Use of non-ionically stabilized waterborne antisoil coatings for automotive leather |
CN112375457A (en) * | 2020-11-18 | 2021-02-19 | 雅图高新材料股份有限公司 | Water-based vehicle frame primer and preparation method thereof |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3379548A (en) | 1960-06-02 | 1968-04-23 | Chevron Res | Water-dispersible alkyds and alkyd resins |
GB2073609B (en) | 1980-04-14 | 1984-05-02 | Ici Ltd | Coating process |
US4389502A (en) | 1981-12-24 | 1983-06-21 | E. I. Du Pont De Nemours And Company | Clear air-dry acrylic lacquer coating composition |
US5025061A (en) * | 1986-12-22 | 1991-06-18 | Nippon Oil And Fats Co., Ltd. | Aqueous dispersion coating material |
JPH0759681B2 (en) | 1987-02-06 | 1995-06-28 | 関西ペイント株式会社 | Aqueous coating composition |
US4888373A (en) | 1988-06-23 | 1989-12-19 | E. I. Du Pont De Nemours And Company | Higher solids solvent-based polyseter coating composition |
EP0394589B1 (en) | 1989-04-25 | 1994-03-09 | Toyo Ink Manufacturing Co., Ltd. | Aqueous coating composition for cans |
US5589228A (en) * | 1990-02-26 | 1996-12-31 | Basf Lacke + Farben, Ag | Process for coating vehicle bodies and aqueous coating |
DE4009857A1 (en) | 1990-03-28 | 1991-10-02 | Basf Lacke & Farben | METHOD FOR PRODUCING A MULTILAYER LACQUERING AND AQUEOUS BASE PAINTS SUITABLE FOR THIS METHOD |
DE69127728T2 (en) | 1990-07-13 | 1998-04-09 | Basf Corp | Aqueous metallic primer composition based on acrylic latex resins using a water-dilutable resin as a medium for the aluminum and hectorite clay for rheology control |
EP0575859A1 (en) | 1992-06-22 | 1993-12-29 | Basf Corporation | A water borne metallic basecoat kit composition using a solvent borne metallic paste for long term aluminum storage |
DE69308585T2 (en) | 1992-10-30 | 1997-09-11 | Ppg Industries Inc | AMINOPLAST CURABLE FILM-FORMING COMPOSITIONS TO FILM WITH ACID RESISTANCE TO ACID |
CA2127761C (en) | 1993-07-16 | 2005-10-18 | Armin Gobel | An aqueous dispersion of polyurethane resins, a method of manufacturing them, coating agents containing them and use thereof |
ATE181933T1 (en) | 1994-12-21 | 1999-07-15 | Zeneca Ltd | METHOD OF GRAFTING |
JPH1157615A (en) * | 1997-08-26 | 1999-03-02 | Kansai Paint Co Ltd | Coat forming method |
JP4316090B2 (en) | 1999-04-30 | 2009-08-19 | 日本ペイント株式会社 | Coating method |
US6172159B1 (en) | 2000-01-18 | 2001-01-09 | Accures Corporation | Water-reducible polyester resins and urethane coatings produced therefrom |
AU4830901A (en) | 2000-02-09 | 2001-08-20 | Ciba Specialty Chemicals Holding Inc. | Hyperbranched amphiphilic polymeric additives and polymer compositions with increased surface energy |
US6436540B1 (en) | 2000-02-18 | 2002-08-20 | Omnova Solutions Inc. | Co-mingled polyurethane-polyvinyl ester polymer compositions and laminates |
BR0110167A (en) | 2000-04-20 | 2003-02-25 | Akzo Nobel Nv | Branched hydroxyl-functional polyester resin and its use in aqueous crosslinkable binder compositions |
GB0025213D0 (en) | 2000-10-14 | 2000-11-29 | Avecia Bv | Polyester polymer compositions |
JP3831266B2 (en) * | 2002-01-22 | 2006-10-11 | 日本ペイント株式会社 | Coating method |
US7087672B2 (en) | 2002-05-08 | 2006-08-08 | E. I. Du Pont De Nemours And Company | Non-yellowing polyester coating composition |
GB2410953B (en) | 2002-12-27 | 2006-06-14 | Nippon Paint Co Ltd | Water-based intermediate coating composition and method for forming multilayer coating film |
US20050255330A1 (en) | 2004-05-15 | 2005-11-17 | Meyer Walter C | Water reducible polyester resin compositions with mixed ionic / nonionic stabilization |
US20060121205A1 (en) * | 2004-12-04 | 2006-06-08 | Basf Corporation | Primerless integrated multilayer coating |
US7485336B2 (en) * | 2005-04-14 | 2009-02-03 | Basf Corporation | Method for predicting and optimizing chip performance in cured thermoset coatings |
US7722931B2 (en) * | 2005-10-07 | 2010-05-25 | E. I. Du Pont De Nemours And Company | Method of forming multi-layer coating films on automobile bodies without a primer bake |
CN101432082B (en) | 2006-04-25 | 2011-10-05 | 关西涂料株式会社 | Method for forming multilayer coating film |
GB2467701B (en) * | 2007-12-12 | 2013-03-13 | Kansai Paint Co Ltd | Water-based paint compositions |
EP2080776A1 (en) | 2008-01-18 | 2009-07-22 | E. I. Du Pont de Nemours and Company | Aqueous Resin Dispersions, Process for the Production Thereof and Coating Compositions Formulated Therewith |
JP4386137B2 (en) * | 2008-02-29 | 2009-12-16 | トヨタ自動車株式会社 | Laser processing apparatus and laser processing method |
US20090269577A1 (en) * | 2008-04-24 | 2009-10-29 | Ppg Industries Ohio, Inc. | Waterborne anti-chip primer coating composition |
-
2011
- 2011-08-19 EP EP11818831.7A patent/EP2605863B1/en active Active
- 2011-08-19 WO PCT/US2011/048434 patent/WO2012024594A2/en active Application Filing
- 2011-08-19 KR KR1020137006916A patent/KR20130097763A/en not_active Application Discontinuation
- 2011-08-19 MX MX2013002033A patent/MX2013002033A/en unknown
- 2011-08-19 BR BR112013003834-9A patent/BR112013003834B1/en active IP Right Grant
- 2011-08-19 CA CA2807175A patent/CA2807175A1/en not_active Abandoned
- 2011-08-19 US US13/816,940 patent/US9005712B2/en active Active
Non-Patent Citations (1)
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---|
See references of EP2605863A4 * |
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US20130142956A1 (en) | 2013-06-06 |
MX2013002033A (en) | 2013-03-25 |
CA2807175A1 (en) | 2012-02-23 |
EP2605863A2 (en) | 2013-06-26 |
KR20130097763A (en) | 2013-09-03 |
BR112013003834A2 (en) | 2016-07-05 |
EP2605863B1 (en) | 2016-10-05 |
BR112013003834B1 (en) | 2020-10-27 |
WO2012024594A3 (en) | 2012-04-05 |
EP2605863A4 (en) | 2015-01-14 |
US9005712B2 (en) | 2015-04-14 |
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