A process for the production of an OEM base coat/clear top coat multi-layer coating wherein a waterborne base coat composition is spray-applied by electrostatically-assisted high speed rotary atomization, wherein the waterborne base coat composition comprises binder solids comprising 20 to 100 wt.% of an aqueously dispersed polyurethane urea resin with a carboxyl number of 10 to 50 mg KOH/g, which is made by a process comprising the steps: (i) producing a non-gelled polyurethane prepolymer with a free isocyanate group content of 0.5 to 4.5 wt.% by reacting polyol, a compound having one alcoholic hydroxyl group and a molar mass of 32 to 300, a polyhydroxycarboxylic acid and a polyisocyanate, in the presence of ketone and/or other inert organic solvent, (ii) if not already effected, neutralizing the carboxyl groups of the polyhydroxycarboxylic acid with a tertiary amine, (iii) converting the ketone and/or other inert organic solvent solution into an aqueous dispersion by mixing with water, and (iv) chain extending the polyurethane prepolymer by reacting the free isocyanate groups thereof with a compound having at least two amino groups capable of addition to isocyanate groups to form urea groups, wherein the at least one compound having one alcoholic hydroxyl group and a molar mass of 32 to 300 is used in a proportion of 0.02 to 0.15 equivalents relative to the NCO provided by the polyisocyanate employed in step (i).
B05D 7/00 - 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
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
The present invention is directed to a process for predicting amount of coarse flakes, such as metallic aluminum flakes present in a coating composition, such as automotive OEM or refinish paint. The process includes measuring flop of a layer of the coating composition applied over a test substrate by using flop prediction device of the present invention. The process is repeated with varying amounts of one or more different types of coarse flakes added to the composition and the flop vs. amount of coarse flakes present in the coating composition is plotted on a graph and then by using a curve fitting equation, a flake amount prediction curve is obtained. By measuring the flop of a wet layer of a target coating composition, the amount of coarse flakes present in the target coating composition can then be predicted by using the flake amount prediction curve. The process is most useful during the manufacture of coating compositions, such as automotive OEM and refinishes paints.
The present invention is directed to a process for predicting the tint strength of a pigmented coating composition, such as automotive OEM or refinish paint, on a real time basis while it is being made. Generally, tint strength can be improved by controlling the grinding time during the manufacturing process. The process includes measuring reflectance (a-value) of a wet layer of the coating composition applied over a test substrate by using tint strength prediction device of the present invention. The tint strength of a coating resulting from a layer, obtained by adding a reference binder to the coating composition, is then measured. The process is repeated by subjecting the coating compositions to successive grinding intervals. The tint strength vs. reflectance is plotted on a graph and then by using a curve fitting equation, a tint strength prediction curve is obtained. By measuring the reflectance of a wet layer of a target coating composition, the tint strength of that target coating composition can then be predicted by using the tint strength prediction curve. The process is most useful during the manufacture of coating compositions, such as automotive OEM and refinishes paints.
The present invention is directed to a process for controlling the metallic gloss of a coating resulting from a coating composition, such as automotive OEM or refinish paint, that contains flakes, such as metallic aluminum flakes. Thus, by adjusting the amount of flattener added to the coating composition, the gloss of a coating resulting therefrom can be controlled from glossy to flat (matte) finish. The process includes measuring reflectance (L-value) of a layer of the coating composition applied over a test substrate by using gloss prediction device of the present invention. The metallic gloss of a coating resulting from the layer is then measured. The process is repeated with varying amounts of one or more flatteners added to the composition and the metallic gloss vs. reflectance is plotted on a graph. Then by means of a curve fitting equation, a metallic gloss prediction curve is plotted. By measuring the reflectance of a wet layer of a target coating composition, the metallic gloss that would be produced by a coating from that target coating composition can then be predicted by using the gloss prediction curve. The process is most useful during the manufacture of coating compositions, such as automotive OEM and refinishes paints.
A process for the production of an automotive OEM multi-layer coating, comprising the steps: (1) applying a base coat layer onto an automotive substrate, (2) applying a clear top coat layer onto the base coat layer, and (3) jointly curing the base coat and clear top coat layers, wherein the base coat layer is applied from a modified water-borne base coat produced by mixing an unmodified water-borne base coat with a polyisocyanate crosslinker component making use of a static mixer, and wherein the polyisocyanate crosslinker component comprises at least one polyisocyanate crosslinker and γ-butyrolactone as water-miscible solvent.
The present disclosure is directed to a system for displaying and designing one or more colors on digital display devices, non-digital display media, or a combination thereof. The system can comprise one or more comparative colors, background colors, or a combination thereof for improved color visual comparison. The system can be used for comparing and selecting colors, such as for use in fashion color designs, automotive color designs, architecture color designs, appliance color designs, or a combination thereof. This disclosure is further directed to a kit and a method for displaying and producing one or more colors.
G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions
G06F 9/44 - Arrangements for executing specific programs
G09G 5/02 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
The present disclosure is directed to a system for displaying and designing one or more colors on digital display devices, non-digital display media, or a combination thereof. The system can comprise one or more comparative colors, background colors, or a combination thereof for improved color visual comparison. The system can be used for comparing and selecting colors, such as for use in fashion color designs, automotive color designs, architecture color designs, appliance color designs, or a combination thereof. This disclosure is further directed to a kit and a method for displaying and producing one or more colors.
G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions
G09G 5/02 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
The present disclosure is directed to a system for displaying and designing one or more colors on digital display devices, non-digital display media, or a combination thereof. The system can comprise one or more comparative colors, background colors, or a combination thereof for improved color visual comparison. The system can be used for comparing and selecting colors, such as for use in fashion color designs, automotive color designs, architecture color designs, appliance color designs, or a combination thereof. This disclosure is further directed to a kit and a method for displaying and producing one or more colors.
G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions
G09G 5/02 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
9.
METHOD FOR MATCHING COLOR AND APPEARANCE OF COATINGS CONTAINING EFFECT PIGMENTS
The present invention is directed to a method for matching color and appearance of a target coating of an article. The method comprising the steps utilizing sparkle values of the target coating; color data of the target coating; and flop values based on the color data; to identify and select matching formulas based on sparkle differences (ΔSg), flop value differences (ΔF), and color difference indexes (CDI). The method can be used for matching color and appearance of target coatings having effect pigments. This disclosure is also directed to a system for implementing the method. The method can be particularly useful for vehicle refinish repairs.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
G06F 17/30 - Information retrieval; Database structures therefor
B60S 5/00 - Servicing, maintaining, repairing, or refitting of vehicles
10.
SYSTEM FOR MATCHING COLOR AND APPEARANCE OF COATINGS CONTAINING EFFECT PIGMENTS
The present invention is directed to a system for matching color and appearance of a target coating of an article. The system comprises a color measuring device; a sparkle measuring device; a color database; a computing device; and a computer program product that causes the computing device to perform a computing process comprising the steps utilizing sparkle values of the target coating; color data of the target coating; and flop values based on the color data; to identify and select matching formulas based on sparkle differences (ΔSg), flop value differences (ΔF), and color difference indexes (CDI). The system can be used for matching color and appearance of target coatings having effect pigments. The system can be particularly useful for vehicle refinish repairs.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
G06F 17/30 - Information retrieval; Database structures therefor
B60S 5/00 - Servicing, maintaining, repairing, or refitting of vehicles
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