WO2004063242A1 - Durable coating compositions containing aspartic compounds - Google Patents
Durable coating compositions containing aspartic compounds Download PDFInfo
- Publication number
- WO2004063242A1 WO2004063242A1 PCT/US2004/000097 US2004000097W WO2004063242A1 WO 2004063242 A1 WO2004063242 A1 WO 2004063242A1 US 2004000097 W US2004000097 W US 2004000097W WO 2004063242 A1 WO2004063242 A1 WO 2004063242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- meth
- coating composition
- weight
- coating
- isocyanate
- Prior art date
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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/12—Polyurethanes from compounds containing nitrogen and active hydrogen, the nitrogen atom not being part of an isocyanate group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
- C08G18/3821—Carboxylic acids; Esters thereof with monohydroxyl compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
- C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
- C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31554—Next to second layer of polyamidoester
Definitions
- This invention is directed to coating compositions, in particular, to durable and weatherable coating compositions useful as clear finishes for automobiles and trucks.
- the finishing system of choice presently being used on the exterior of automobiles and trucks comprises a clear coating applied over pigmented base coating that is applied over a primer coating.
- the clear coating provides protection, in particular protection from weathering, to the pigmented base coating and improves the appearance of the overall finish, in particular, provides improved gloss and distinctness of image.
- the clear coating is required to have a reasonably short cure time period to allow for further processing or handling of the vehicle with out damaging the finish.
- a coating composition comprising a binder of a. polyisocyanate crosslinking agent; b. an isocyanate-reactive component having at least one compound having the following formula:
- X is an aliphatic or cycloaliphatic group
- R 1 and R 2 are the same or different organic groups that are inert to isocyanate groups
- n is 2 to 4, c.
- an oligomeric component having a number average molecular weight of 300 to 3,000 having reactive groups that crosslink with an isocyanate, where the reactive groups are hydroxyl, carboxyl, glycidyl, amine, aldimines, phosphoric acid, ketimine and any mixtures thereof; and wherein the composition contains the following additives:
- a typical auto or truck body is produced from a steel sheet or a plastic or a composite substrate.
- the fenders may be of plastic or a composite and the main portion of the body of steel.
- an inorganic rust-proofing compound such as, zinc or iron phosphate
- a primer coating is applied generally by electrodeposition.
- these electrodeposition primers are epoxy- modified resins crosslinked with a polyisocyanate and are applied by a cathodic electrodeposition process.
- a primer can be applied over the electrodeposited primer, usually by spraying, to provide better appearance of a base coating or a mono coating applied over the primer and improve the adhesion of such coatings to the primer or both of the above.
- a mono coating of a pigmented coating composition then can be applied but preferably, a pigmented base coating with a clear top coating is applied to form a clear coat/color coat finish on the truck or automobile body or auto or truck part.
- each of the coatings is cured by baking at an elevated temperature. It is generally known that a clear top coating can be applied over the base coating and both coatings cured together at an elevated temperature.
- the coatings are usually cured at ambient temperatures or at slightly elevated temperatures, such as, 40 to 100°C.
- a "clear coating composition” for automotive use is a composition that forms a transparent finish upon curing and has a DOI (distinctness of image) of more than 70 and a 20°gloss of more than 70.
- DOI distinctness of image
- These clear coatings provide a glossy in depth appearance to the finish on the automobile or truck and therefore, are required to have good gloss and distinctness of image.
- the clear finish also provides resistance to weathering, in particular to U.V. degradation and photo-oxidation.
- binder refers to the film forming constituents of the composition that include the isocyanate reactive component, an optional polymeric and/or oligomeric component, polyisocyanate crosslinking agent and optional reactive diluents.
- Solvents, pigments, catalysts, rheology modifiers, antioxidants, U.V. absorbers, hindered amine light stabilizers, hydroperoxide decomposers leveling agents, antifoaming agents, anti-cratering agents, adhesion promoting agents are not included in the term.
- Molecular weight (both number and weight average) is determined by gel permeation chromatography utilizing a high performance liquid chromatograph supplied by Hewlett-Packard, Palo Alto, California and unless otherwise stated the liquid phase used was tetrahydrofuran and the standard was polymethylmethacrylate or polystyrene.
- Tg glass transition temperature
- the binder can contain 1 to 50% by weight, preferably, 5 to 30% by weight, based on the weight of the binder, of a polymeric or oligomeric component or both wherein the component contains groups that are reactive with the polyisocyanate crosslinking agent.
- One preferred binder composition contains 25 to 50%, by weight of the aspartic acid derivative, 5 to 30% by weight of the polymeric or oligomeric component or both and 20 to 70% by weight of a polyisocyanate, wherein the sum of all of the components of the binder is 100%.
- composition of this invention provides a protective clear finish that has good gloss and distinctness of image that provides an excellent appearance, has excellent weatherability, in particular resistance to U.V. degradation and photo-oxidation and also hardens in a reasonably short time after application.
- the composition after application cures to a tack free state in a relatively short period of time under ambient temperatures or under slightly elevated drying temperatures, for example, 40 to 100°C, that allows a coated vehicle to be moved or further processed without damage to the finish.
- the novel composition typically is solvent based and has a solids content of film forming binder of 20 to 90% by weight, preferably, 60 to 75% by weight. It may be possible to formulate a 100% solids composition with the use of reactive diluents.
- An aqueous liquid carrier which typically is water but may contain other liquids, may be used in place of the solvent. Before application a sufficient amount of liquid usually is added, for example, water or solvents, to reduce the composition to a spray viscosity.
- the novel coating composition is an aqueous based composition
- the composition typically has a pH of 6.0 to 10.0 and preferably, 7.5 to 8.5.
- the pH may be adjusted by the addition of various amines.
- the isocyanate reactive component of the novel composition is an aspartic acid derivative and is described in Zwiener et al. US Patent 5,236,741 , issued Aug. 17, 1993, which is hereby incorporated by reference. These components have the formula
- X is an aliphatic or cycloaliphatic group
- R 1 and R 2 are the same or different organic groups that are inert to isocyanate groups
- n is 2 to 4.
- X is a cycloaliphatic group
- R 1 and R 2 are aliphatic groups and more preferably, are alkyl groups having 2 to 8 carbon atoms.
- One particularly preferred component is the reaction product of methylene bis (cyclohexyl amine) and a dialkyl maleate, preferably, diethyl maleate, in a 1 :2 molar ratio.
- the optional polymeric component has groups that are reactive with isocyanate and can be used in an amount of 1 to 50% by weight, based on the weight of the binder.
- One preferred polymeric component is an acrylic polymer.
- acrylic polymers typically useful acrylic polymers have a number average molecular weight of about 5,000 to 50,000, a Tg of 10 to 80 °C and contain moieties, such as, hydroxyl, carboxyl, glycidyl and amino groups.
- acrylic polymers are those known in the art and are polymers of two or more of the following: linear alkyl (meth)acrylates having 1 to 12 carbon atoms in the alkyl group, cyclic or branched alkyl (meth)acrylates having 3 to 12 carbon atoms in the alkyl group including isobornyl (meth)acrylate, hydroxy alkyl (meth)acrylates having 1 to 4 carbon atoms in the alkyl group, glycidyl (meth)acrylate, hydroxy amino alkyl (meth)acrylates having 1 to 4 carbon atoms in the alkyl group, and can contain styrene, alpha methyl styrene, vinyl toluene,
- (meth)acrylonitrile (meth)acryl amides (meth)acrylic acid, (meaning both acrylic acid and methacrylic acid) trimethoxysilylpropyl (meth)acrylate and the like.
- hydroxy functional acrylic polymers having a hydroxy equivalent weight of 300 to 1300 and are polymers of hydroxy alkyl (meth)acrylates and one or more of the aforementioned monomers.
- One preferred hydroxy containing acrylic polymer contains 35 to 50% by weight styrene, 15 to 25% by weight ethylhexyl methacrylate and 15 to 20% by weight isobornyl methacrylate and 20 to 30% by weight hydroxyethyl methacrylate.
- a particularly preferred acrylic polymer contains 37% styrene, 20% by weight 2-ethylhexyl methacrylate and 17.5% by weight of isobornyl methacrylate and 25.5% by weight hydroxyethyl methacrylate.
- Acrylic oligomers having a number average molecular weight of 300 to 3,000 of the aforementioned monomeric components also can be used as the optional polymeric component.
- these oligomers can have the one or more of the following groups that are reactive with isocyanate: hydroxyl, carboxyl, glycidyl, amine, aldimine, phosphoric acid and ketimine.
- Polyesters can also be used as the optional polymeric component, such as, hydroxyl or carboxyl terminated or hydroxyl or carboxyl containing polyesters.
- the following are typically useful polyesters or ester oligomers: polyesters or oligomers of caprolactone diol and cyclohexane dimethylol, polyesters or oligomers of tris-hydroxy ethylisocyanurate and caprolactone, polyesters or oligomers of trimethylol propane, phthalic acid or anhydride and ethylene oxide, polyesters or oligomers of pentaerythritol, hexahydrophthalic anhydride and ethylene oxide, polyesters or oligomers of pentaerythritol, hexahydrophthalic anhydride and butylene oxide.
- polyesters and oligomers can be reacted with an organic isocyanate to form urethane polymers and oligomers that can be used as the optional polymeric component in the novel composition.
- One useful urethane oligomer that can used in the novel composition is formed by reacting an aliphatic polyisocyanate with an aliphatic or cycloaliphatic monohydric alcohol and subsequently reacting the resulting composition with a hydroxy functional aliphatic carboxylic acid until all of the isocyanate groups have been reacted.
- One useful polyurethane oligomer comprises the reaction product of the isocyanurate of hexane diisocyanate, cyclohexanol and dimethylol propionic acid. To form a water dispersible oligomer, an amine is can be added.
- Typical useful organic polyisocyanates crosslinking agents that can be used in the novel composition of this invention include aliphatic polyisocyanates, cycloaliphatic polyisocyanates and isocyanate adducts.
- Suitable aliphatic and cycloaliphatic polyisocyanates include the following: 4,4'dicyclohexyl methane diisocyanate, ( ⁇ I 2 MD ⁇ ), trans-cyclohexane-1 ,4-diisocyanate, 1 ,6-hexamethylene diisocyanate (“HDI”), isophorone diisocyanate,("IPDI”), other aliphatic or cycloaliphatic di-, tri- or tetra-isocyanates, such as, 1 ,2- propylene diisocyanate, tetramethylene diisocyanate, 2,3-butylene diisocyanate, octamethylene diisocyanate, 2,2,4-trimethyl hexamethylene diisocyanate, dodecamethylene diisocyanate, omega-dipropyl ether diisocyanate, 1 ,3-cyclopentane diisocyanate, 1 ,2 cyclohe
- An isocyanate functional adduct can be used, such as, an adduct of an aliphatic polyisocyanate and a polyol. Also, any of the aforementioned polyisocyanates can be used with a polyol to form an adduct.
- Polyols such as, trimethylol alkanes, particularly, trimethylol propane or ethane can be used to form an adduct.
- the novel composition can contain 0.1 to 5% by weight, based on the weight of the binder of acrylic NAD (non-aqueous dispersed) resins.
- NAD resins typically are high molecular weight resins having a crosslinked acrylic core with a Tg between 20 to 100°C and attached to the core are low Tg stabilizer segments.
- a description of such NADs is found in Antonelli et al. US Patent 4,591 ,533 and in Barsotti et al. US Patent 5,763,528 which patents are hereby incorporated by reference.
- a catalyst is used in the novel composition to reduce curing time and temperature and allow curing of the coating at ambient temperatures.
- Useful catalysts include those known to the person skilled in the art, like, alkyl carboxylic acids having 1 to 12 carbon atoms in the alkyl group, such as, acetic acid, formic acid, glycolic acid; aromatic acids, such as, benzoic acid; and oligomers having pendant acid groups.
- the novel composition contains about 0.1 to 5% by weight, based on the weight of the binder, of ultraviolet light absorbers.
- useful ultraviolet light absorbers include hydroxyphenyl benzotriazols, such as, 2-(2-hydroxy-5-methylphenyl)-2H-benzotrazole, 2-(2-hydroxy-3,5- di-tert.amyl-phenyl)-2H-benzotriazole, 2[2-hydroxy-3,5-di(1 ,1- dimethylbenzyl)phenyl]-2H-benzotriazole, reaction product of 2-(2- hydroxy-3-tert.butyl-5-methyl propionate)-2H-benzotriazole and polyethylene ether glycol having a weight average molecular weight of 300, 2-(2-hydroxy-3-tert.butyl-5-iso-octyl propionate)-2H-benzotriazole; hydroxyphenyl s-triazines, such as, 2-[4((2,-hydroxy-3- dodecyloxy
- the novel composition contains about 0.1 to 5% by weight, based on the weight of the binder, of a di- substituted phenol antioxidant or a hydroperoxide decomposer.
- useful antioxidants include tetrakis[methylene(3,5-di-tert-butylhydroxy hydrocinnamate)]methane, octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate, tris(2,4-di-tert- butylphenyl) phosphite, 1 ,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-1 ,3,5- triazine-2,4,6(1 H,3H,5H)-trione and benzenepropanoic acid, 3,5-bis(1 ,1- dimethyl-ethyl)-4-hydroxy-C7-C9 branched alkyl esters.
- hydroperoxide decomposers include Sanko® HCA ( 9,10-dihydro-9-oxa- 10-phosphenanthrene-10-oxide), triphenyl phosphate and other organo- phosphorous compounds, such as, Irgafos® TNPP from Ciba Specialty Chemicals, Irgafos® 168, from Ciba Specialty Chemicals, Ultranox® 626 from GE Specialty Chemicals, Mark PEP-6 from Asahi Denka, Mark HP- 10 from Asahi Denka, Irgafos® P-EPQ from Ciba Specialty Chemicals, Ethanox 398 from Albemarle, Weston 618 from GE Specialty Chemicals, Irgafos® 12 from Ciba Specialty Chemicals, Irgafos® 38 from Ciba Specialty Chemicals, Ultranox® 641 from GE Specialty Chemicals and Doverphos® S-9228 from Dover Chemical
- the novel composition contains about 0.1-5% by weight, based on the weight of the binder, of hindered amine light stabilizers.
- useful hindered amine light stabilizers include N-(1 ,2,2,6,6-pentamethyl-4- piperidinyl)-2-dodecyl succinimide, N(1 acetyl-2,2,6,6-tetramethyl-4- piperidinyl)-2-dodecyl succinimide, N-(2hydroxyethyl)-2,6,6,6- tetramethylpiperidine-4-ol-succinic acid copolymer, 1 ,3,5 triazine-2,4,6- triamine, N,N'"-[1 ,2-ethanediybis[[[4,6-bis[butyl(1 ,2,2,6,6-pentamethyl-4- piperidinyl)amino]-1 ,3,5-triazine-2-yl]imino]-3,1-
- the composition is a solvent based composition and any of the known organic solvents may be used to form the coating composition.
- Typical solvents include aromatic hydrocarbons, such as, toluene, xylene; ketones, such as, acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl amyl ketone and diisobutyl ketone; esters, such as, ethyl acetate, n-butyl acetate, isobutyl acetate; and mixtures of any of the above.
- the novel coating composition may also include other conventional formulation additives, such as, wetting agents, leveling and flow control agents, for example, Resiflow ⁇ S (polybutylacrylate), BYK® 320 and 325 (high molecular weight polyacrylates), BYK® 347 (polyether- modified siloxane), rheology control agents, such as, fumed silica, defoamers, surfactants and emulsifiers to help stabilize the composition.
- Other additives that tend to improve mar resistance can be added, such as, silsesquioxanes and other silicate-based micro-particles.
- the coating composition of this invention can be used as a clear coat that is applied over a pigmented base coat that may a pigmented version of the composition of this invention or another type of a pigmented base coat.
- the clear coating can be in solution or in dispersion form.
- a clear coating is then applied over the base coating before the base coating is fully cured, a so called "wet-on-wet process", and the base coating and clear coating are then fully cured at ambient temperatures or can be cured by heating to elevated temperatures of 50°C to 100°C for 15 to 45 minutes.
- the base coating and clear coating preferably have a dry coating thickness ranging from 25 to 75 microns and 25 to 100 microns, respectively.
- the novel coating composition may be used as a base coat or as a pigmented monocoat topcoat. Both of these compositions require the presence of pigments. Typically, a pigment-to-binder ratio of 0.1/100 to 200/100 is used depending on the color and type of pigment used.
- the pigments are formulated into mill bases by conventional procedures, such as, grinding, sand milling, and high speed mixing. Generally, the mill base comprises pigment and a dispersant in an aqueous medium. The mill base is added in an appropriate amount to the coating composition with mixing to form a pigmented coating composition.
- any of the conventionally-used organic and inorganic pigments such as, white pigments, like, titanium dioxide, color pigments, metallic flakes, such as, aluminum flake, special effects pigments, such as, coated mica flakes, coated aluminum flakes and the like and extender pigments can be used. It may be desirable to add flow control additives.
- the novel coating composition may be used as a primer in which case typical pigments used in primers would be added, such as, carbon black, barytes, silica, iron oxide and other pigments that are commonly used in primers in a pigment-to-binder ratio of 150/100 to 300/100.
- the coating composition can be applied by conventional techniques, such as, spraying, electrostatic spraying, dipping, brushing, and flow coating.
- the coating composition is particularly useful for the repair and refinish of automobile bodies and truck bodies and parts as a clear coat, pigmented base coat, or as a primer.
- the novel composition has uses for coating 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, commercial trailers, consumer trailers, recreational vehicles, including but not limited to, motor homes, campers, conversion vans, vans, large commercial aircraft and small pleasure aircraft, pleasure vehicles, such as, snow mobiles, all terrain vehicles, personal watercraft, motorcycles, and boats.
- the novel composition also can be used as a coating for industrial and commercial new construction and maintenance thereof; cement and wood floors; walls of commercial and residential structures, such as, office buildings and homes; amusement park equipment; concrete surfaces, such as parking lots and drive ways; asphalt and concrete road surface, wood substrates, marine surfaces; outdoor structures, such as bridges, towers; coil coating; railroad cars; printed circuit boards; machinery; OEM tools; signs; fiberglass structures; sporting goods; and sporting equipment.
- Persoz Hardness Test the change in film hardness of the coating was measured with respect to time after application by using a Persoz Hardness Tester Model No. 5854 [ASTM D4366] supplied by Byk- Mallinckrodt, Wallingford, CT. The number of Oscillations [referred as Persoz No.] are recorded.
- the swelling ratio of the film was determined after 3 days from the initial drawn down of a coating on a panel of TPO (thermoplastic polyolefin).
- a steel panel is coated with the coating composition using the above bird applicator to form a film 40 to 75 microns thick.
- the time of application is noted as T-i. Every 10 minutes after application the panel is placed on a top loading balance and pushed down with the force of 2 kgm and the thumb is twisted. 15 minutes are allowed for any deformation to disappear. The time the deformation does not appear is recorded as T 2 .
- the dry to assembly time T 2 - T ⁇ .
- Acetic Acid Solution 10% by weight acetic acid in butyl acetate.
- Tinuvin® 384 Solution 25% solution in butyl acetate of a substituted benzotriazole derivative from Ciba Specialty Chemicals, Basel, Switzerland.
- Irganox® 1010 Solution- 10% solution in butyl acetate of benzenepropanoic acid, 3,5-bis(1 ,1-dimethyl-ethyl)-4-hydroxy-C7-C9 branched alkyl esters.
- Irganox® 1135 Solution- 10% solution in butyl acetate of a liquid hindered phenolic antioxidant from Ciba Specialty Chemicals.
- Desmodur® 3300- trimer of hexamethylene diisocyanate from Bayer Corporation Desmodur® 3300- trimer of hexamethylene diisocyanate from Bayer Corporation.
- the above prepared clear coating composition 1 -5 were each applied by spraying as a clear coat onto a phosphatized steel panel coated with a cured cathodic epoxy resin based electrodeposition primer over which a black pigmented waterborne base coating composition of an acrylic polymer crosslinked with a melamine resin was applied to a wet film thickness of 12.7-20.32 microns (0.5-0.8 mils), flash dried for 5 minutes and baked for 10 minutes at 82°C (180°F).
- the above prepared clear coating was applied to a wet film thickness of 58-63 microns (2.3-2.5 mils) and cured at ambient temperatures.
- compositions 1 and 4 that did not contain disubstituted phenolic antioxidants or phosphite type hydroperoxide decomposers stabilizers failed completely.
- the following Graph 1 shows 20°Gloss versus hours in the QUV weathering device at various times of exposure.
- the circles on the graph represent Composition 1 , the squares Composition 2, the diamonds, Composition 3, the triangles, Composition 4 and the solid circles Composition 5.
- Compositions 2, 3 and 5 represent the invention where either a disubstituted phenolic antioxidant or phosphite type hydroperoxide decomposer was included.
- the above graph shows unacceptable QUV weathering for Composition 1 that did not contain a disubstituted phenol antioxidant and Composition 4 that did not contain a disubstituted phenol antioxidant, or a UV absorber or a hindered amine light stabilizer.
- antioxidant, UV light absorber and hindered amine light stabilizer in combination with the aspartic acid derivative had significantly improved weathering properties in comparison to Compositions 1 and 4.
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)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200460013536 DE602004013536D1 (en) | 2003-01-03 | 2004-01-02 | ASPARAGIN COMPOUNDS CONTAINING PERMANENT COATING COMPOSITIONS |
MXPA05007117A MXPA05007117A (en) | 2003-01-03 | 2004-01-02 | Durable coating compositions containing aspartic compounds. |
CA 2511369 CA2511369A1 (en) | 2003-01-03 | 2004-01-02 | Durable coating compositions containing aspartic compounds |
US10/539,675 US20060030688A1 (en) | 2003-01-03 | 2004-01-02 | Durable coating compositions containing aspartic compounds |
EP04700066A EP1581575B1 (en) | 2003-01-03 | 2004-01-02 | Durable coating compositions containing aspartic compounds |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43795703P | 2003-01-03 | 2003-01-03 | |
US60/437,957 | 2003-01-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004063242A1 true WO2004063242A1 (en) | 2004-07-29 |
Family
ID=32713256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/000097 WO2004063242A1 (en) | 2003-01-03 | 2004-01-02 | Durable coating compositions containing aspartic compounds |
Country Status (6)
Country | Link |
---|---|
US (2) | US7276288B2 (en) |
EP (1) | EP1581575B1 (en) |
CA (1) | CA2511369A1 (en) |
DE (1) | DE602004013536D1 (en) |
MX (1) | MXPA05007117A (en) |
WO (1) | WO2004063242A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006046117A1 (en) * | 2004-10-28 | 2006-05-04 | Basf Coatings Japan Ltd. | White basecoat coating composition, method for forming coating film and coated article |
WO2007009920A1 (en) * | 2005-07-19 | 2007-01-25 | Basf Aktiengesellschaft | Coatings reparable by introduction of energy |
WO2007121051A1 (en) * | 2006-04-10 | 2007-10-25 | Basf Corporation | Coating compositions comprising a hindered amine light stabilizer in the form of its salt |
EP2829562A1 (en) | 2013-07-23 | 2015-01-28 | Axalta Coating Systems IP Co. LLC | Clear coat component |
WO2015130501A1 (en) | 2014-02-25 | 2015-09-03 | Axalta Coating Systems Ip Co., Llc | Coating compositions comprising diisocyanate chain extended bisaspartates |
US10125290B2 (en) | 2014-02-25 | 2018-11-13 | Axalta Coating Systems Ip Co., Llc | Coating compositions comprising diisocyanate chain extended bisaspartates |
WO2021175661A1 (en) | 2020-03-04 | 2021-09-10 | Basf Coatings Gmbh | Kit-of-parts for curable polyaspartic acid ester-based coating compositions |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7608303B2 (en) * | 2004-12-15 | 2009-10-27 | E.I. Du Pont De Nemours And Company | Durable coating compositions containing aspartic amine compounds |
US20060228485A1 (en) * | 2004-12-15 | 2006-10-12 | Lenges Christian P | Durable coating compositions containing aspartic amine compounds |
US7674499B2 (en) * | 2004-12-15 | 2010-03-09 | E.I. Du Pont De Nemours And Company | Durable coating compositions containing novel aspartic amine compounds |
WO2007031450A1 (en) * | 2005-09-16 | 2007-03-22 | Ciba Specialty Chemicals Holding Inc. | Polyurethane flame retardant compositions |
CN101437874B (en) * | 2006-05-05 | 2011-09-21 | Ppg工业俄亥俄公司 | Thioether functional oligomeric polythiols and articles prepared therefrom |
US20080132646A1 (en) | 2006-12-04 | 2008-06-05 | Delson Jayme Trindade | Acrylic polyol coating composition |
DE102009016173A1 (en) | 2009-04-03 | 2010-10-14 | Bayer Materialscience Ag | protective lacquer |
EP2536508B1 (en) * | 2010-02-15 | 2017-12-06 | Coatings Foreign IP Co. LLC | Method for spraying two-component compositions |
PT2673311E (en) * | 2011-02-09 | 2014-11-12 | Bayer Materialscience Ag | Tissue adhesive based on trifunctional aspartates |
JP2013199582A (en) * | 2012-03-26 | 2013-10-03 | Toyo Ink Sc Holdings Co Ltd | Resin composition |
CN105008424A (en) * | 2013-03-06 | 2015-10-28 | 涂料外国Ip有限公司 | Two-component coating composition |
EP2862957B1 (en) * | 2013-10-16 | 2019-08-07 | Coatings Foreign IP Co. LLC | Process for producing a multilayer coating |
US9631281B2 (en) | 2014-12-04 | 2017-04-25 | Axalta Coating Systems Ip Co., Llc | Processes for producing a multilayer coating |
WO2016210237A1 (en) * | 2015-06-26 | 2016-12-29 | Covestro Llc | Polyaspartic ester based coatings for metal surfaces |
US20180312722A1 (en) * | 2015-12-10 | 2018-11-01 | Dow Global Technologies Llc | Crosslinkable composition and coating made therefrom |
CN114686095A (en) * | 2022-02-23 | 2022-07-01 | 国网安徽省电力有限公司电力科学研究院 | Anti-aging polyurethane flame-retardant paint for electric fire-fighting equipment and preparation method and application thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5412056A (en) * | 1993-08-19 | 1995-05-02 | Bayer Aktiengesellschaft | Surface coatings and a process for their production |
US5580945A (en) * | 1994-11-29 | 1996-12-03 | Bayer Corporation | Polyurea coatings compositions and coating having improved flexibility |
US5591807A (en) * | 1995-05-23 | 1997-01-07 | The Sherwin-Williams Company | Polyimine/polyisocyanate coating composition containing polymeric anhydride |
US6399736B1 (en) * | 1997-03-11 | 2002-06-04 | Huntsman Petrochemical Corporation | Method of preparing spray elastomer systems |
WO2003057374A2 (en) * | 2001-12-26 | 2003-07-17 | Dow Global Technologies Inc. | Coating process and composition for same |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4591533A (en) * | 1985-06-03 | 1986-05-27 | E. I. Du Pont De Nemours And Company | Coating composition of an acrylic polymer, a dispersed acrylic polymer and an alkylated melamine crosslinking agent |
EP0403921B1 (en) * | 1989-06-23 | 1994-11-02 | Bayer Ag | Process for the preparation of coatings |
US5236741A (en) * | 1989-06-23 | 1993-08-17 | Bayer Aktiengesellschaft | Process for the production of polyurethane coatings |
US5243012A (en) * | 1992-06-10 | 1993-09-07 | Miles Inc. | Polyurea coating compositions having improved pot lives |
US5286782A (en) * | 1992-08-31 | 1994-02-15 | E. I. Du Pont De Nemours And Company | Coating composition of an acrylic polymer, polyol and polyisocyanate crosslinking agent |
US5516873A (en) * | 1994-07-11 | 1996-05-14 | Bayer Corporation | Polyisocyanate/polyamine mixtures and their use for the production of polyurea coatings |
US5652301A (en) * | 1996-08-20 | 1997-07-29 | Bayer Corporation | Aqueous polyurea dispersions and their use for preparing coatings with excellent hydrolytic and thermal stability |
US5763528A (en) * | 1996-12-17 | 1998-06-09 | E. I. Du Pont De Nemours And Company | Coating compositions containing non-aqueous dispersed polymers having a high glass transition temperature |
US6013755A (en) * | 1997-03-11 | 2000-01-11 | Huntsman Petrochemical Corporation | Method of preparing an aliphatic polyurea spray elastomer system |
US5874172A (en) * | 1997-11-26 | 1999-02-23 | Lexmark International, Inc. | Oxidative age resistance of surface oxidized roller |
DE19738616A1 (en) * | 1997-09-04 | 1999-03-11 | Clariant Gmbh | 4-hydroxyquinoline-3-carboxylic acid derivatives as light stabilizers |
US6005062A (en) * | 1998-07-02 | 1999-12-21 | 3M Innovative Properties Company | Secondary aspartic acid amide esters |
US6780908B1 (en) * | 2000-06-21 | 2004-08-24 | E. I. Du Pont De Nemours And Company | Coating composition |
US7019070B2 (en) * | 2002-06-13 | 2006-03-28 | E. I. Dupont De Nemours And Company | Aqueous coating composition having improved acid etch and mar resistance |
-
2003
- 2003-12-16 US US10/737,338 patent/US7276288B2/en not_active Expired - Fee Related
-
2004
- 2004-01-02 DE DE200460013536 patent/DE602004013536D1/en not_active Expired - Fee Related
- 2004-01-02 CA CA 2511369 patent/CA2511369A1/en not_active Abandoned
- 2004-01-02 US US10/539,675 patent/US20060030688A1/en not_active Abandoned
- 2004-01-02 EP EP04700066A patent/EP1581575B1/en not_active Expired - Fee Related
- 2004-01-02 WO PCT/US2004/000097 patent/WO2004063242A1/en active Application Filing
- 2004-01-02 MX MXPA05007117A patent/MXPA05007117A/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5412056A (en) * | 1993-08-19 | 1995-05-02 | Bayer Aktiengesellschaft | Surface coatings and a process for their production |
US5580945A (en) * | 1994-11-29 | 1996-12-03 | Bayer Corporation | Polyurea coatings compositions and coating having improved flexibility |
US5591807A (en) * | 1995-05-23 | 1997-01-07 | The Sherwin-Williams Company | Polyimine/polyisocyanate coating composition containing polymeric anhydride |
US6399736B1 (en) * | 1997-03-11 | 2002-06-04 | Huntsman Petrochemical Corporation | Method of preparing spray elastomer systems |
WO2003057374A2 (en) * | 2001-12-26 | 2003-07-17 | Dow Global Technologies Inc. | Coating process and composition for same |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006046117A1 (en) * | 2004-10-28 | 2006-05-04 | Basf Coatings Japan Ltd. | White basecoat coating composition, method for forming coating film and coated article |
WO2007009920A1 (en) * | 2005-07-19 | 2007-01-25 | Basf Aktiengesellschaft | Coatings reparable by introduction of energy |
WO2007121051A1 (en) * | 2006-04-10 | 2007-10-25 | Basf Corporation | Coating compositions comprising a hindered amine light stabilizer in the form of its salt |
EP2829562A1 (en) | 2013-07-23 | 2015-01-28 | Axalta Coating Systems IP Co. LLC | Clear coat component |
CN104449303A (en) * | 2013-07-23 | 2015-03-25 | 涂料外国Ip有限公司 | Curable clear coat component and |
EP2829562B1 (en) | 2013-07-23 | 2015-10-21 | Coatings Foreign IP Co. LLC | Clear coat component |
US9790399B2 (en) | 2013-07-23 | 2017-10-17 | Axalta Coatings Systems Ip Co. Llc | Clear coat component |
WO2015130501A1 (en) | 2014-02-25 | 2015-09-03 | Axalta Coating Systems Ip Co., Llc | Coating compositions comprising diisocyanate chain extended bisaspartates |
US10125290B2 (en) | 2014-02-25 | 2018-11-13 | Axalta Coating Systems Ip Co., Llc | Coating compositions comprising diisocyanate chain extended bisaspartates |
US10385231B2 (en) | 2014-02-25 | 2019-08-20 | Axalta Coating Systems Ip Co., Llc | Coating compositions comprising diisocyanate chain extended bisaspartates |
WO2021175661A1 (en) | 2020-03-04 | 2021-09-10 | Basf Coatings Gmbh | Kit-of-parts for curable polyaspartic acid ester-based coating compositions |
Also Published As
Publication number | Publication date |
---|---|
US20040147648A1 (en) | 2004-07-29 |
MXPA05007117A (en) | 2005-08-26 |
CA2511369A1 (en) | 2004-07-29 |
EP1581575B1 (en) | 2008-05-07 |
DE602004013536D1 (en) | 2008-06-19 |
US7276288B2 (en) | 2007-10-02 |
EP1581575A1 (en) | 2005-10-05 |
US20060030688A1 (en) | 2006-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7276288B2 (en) | Durable coating compositions containing aspartic compounds | |
US7427647B2 (en) | Durable coating compositions containing aspartic amine compounds with improved potlife | |
US7169475B2 (en) | Coating composition containing polytrimethylene ether diol useful as a clear coat composition and as a primer composition | |
US8361555B2 (en) | Hydroxy alkyl isocyanurates | |
JP2005504137A (en) | Preparation and use of biuret-containing polyisocyanates as crosslinking agents for coatings | |
US7166748B2 (en) | Durable coating compositions containing novel aspartic amine compounds | |
WO2013126186A1 (en) | Low temperature curing coating composition containing sag control agent and use thereof | |
US8710138B2 (en) | Etch resistant clearcoat | |
US7019070B2 (en) | Aqueous coating composition having improved acid etch and mar resistance | |
US7449242B2 (en) | Durable coating compositions containing novel aspartic amine compounds | |
US7732018B2 (en) | Durable coating compositions containing novel aspartic amine compounds | |
US20070269661A1 (en) | Ultraproductive coating composition using a chemically mixed isocyanate system | |
EP1833783B1 (en) | Durable coating compositions containing novel aspartic amine compounds | |
EP1833871B1 (en) | Durable coating compositions containing aspartic amine compounds | |
EP1846516B1 (en) | Rheology control agents for coating compositions | |
US20060228485A1 (en) | Durable coating compositions containing aspartic amine compounds | |
US20060222875A1 (en) | Coating composition containing polytrimethylene ether diol useful as a clear coat composition and as a primer composition | |
EP2483238B1 (en) | A coating composition comprising fluorinated sag control agent | |
US7608303B2 (en) | Durable coating compositions containing aspartic amine compounds |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2006030688 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10539675 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2511369 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2005/007117 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004700066 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2004700066 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10539675 Country of ref document: US |