Method for formulating paint
AssigneeGeneral Motors Corporation
InventorsDaniel Loyce Snyder, Walter Keith Hammock, Jodell Naomi Wittenberg
Life of this patent
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Abstract
A method for formulating paint is disclosed. The method includes providing a plurality of color coordinates of paints formed from a plurality of formulations and providing durability data related to the paints. Thereafter, the color coordinates, the formulations and the durability data are correlated to assist in forming paints of acceptable durability.
Claims6
A method for determining a paint formulation for producing a paint characterized by desired color coordinates in a three-dimensional color space and desired durability characteristics from a set of known constituents, said method comprising:
- providing a plurality of color coordinates, each of the color coordinates corresponding to paint formulations having respective diverse apportionments of the known constituents;
- providing durability data related to durability characteristics exhibited by the paint formulations having the respective diverse apportionments of the known constituents;
- performing regression of the color coordinates and the diverse apportionments of the known constituents to establish a set of interdependent equations having first variables corresponding to the known constituents and second variables corresponding to the color coordinates;
- providing coordinates of a desired color;
- and
- recursively solving the set of interdependent equations for values of the first variables which substantially equate the second variables to color coordinates substantially near to the desired color wherein the values of the first variable are constrained by the durability data related to the durability characteristics exhibited by the paint formulations.
A method of determining a paint formulation for producing a paint characterized by desired color coordinates in a three-dimensional color space from a set of known constituents, the method comprising;
- providing a plurality of paint samples, each paint sample characterized by respective diverse constituent apportionment data;
- providing respective color coordinate data defining, for each paint sample, color position in a three dimensional color space;
- providing durability data related to the durability characteristics exhibited by each of the paint samples;
- relating the constituent apportionment data to the color coordinate data to derive a formulation model characterized by correlation of the known constituents to color attributes defining color positions in the three dimensional color space, each color position further defined by the durability characteristics exhibited by its respective paint sample;
- applying the color coordinate data and the durability data to a select paint color in the three dimensional color space to determine constituent apportionments corresponding to the select paint color.
Dependencies are inferred from the claim text.