System and method for automated production, application and evaluation of coating compositions

Patent metadata

Field	Value
Publication number	US-9849431-B2
Application number	US-201213548524-A
Country	US
Kind code	B2
Filing date	Jul 13, 2012
Priority date	Jul 13, 2012
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

Systems and methods for producing, applying and evaluating coating compositions are disclosed. The amounts of components contained in the coating compositions may be monitored, along with processing parameters when the coating compositions are applied to various substrates. In certain embodiments, the characteristics of a produced sample coating are compared with the characteristics of a target or reference coating to determine if they are sufficiently matched.

First claim

We claim:

1. A color matching method for coatings comprising:
providing a target formulation for a coating composition including types and target amounts of components of the coating composition to be included in the target formulation;
automatically dispensing the types of the components of the target formulation into a container to provide a sample coating composition and automatically measuring the amount of each of the components of the sample coating composition dispensed into the container;
comparing the measured amount of each of the components with the target amount of each of the components;
applying the sample coating composition to a test panel substrate and curing the sample coating composition to form a sample coating;
comparing characteristics of the sample coating with characteristics of a coating produced from the target formulation to determine whether there is an acceptable match of such characteristics;
characterizing the sample coating as passing or failing based upon the comparison of the characteristics of the sample coating and the coating produced from the target formulation; and
correlating any differences between the characteristics of the sample coating and the coating produced from the target formulation with the comparison between the measured amount of each of the components and the target amount of each of the components to thereby determine whether, if the sample coating is characterized as failing, changes in the amounts of the components of the sample coating are necessary to match the characteristics of the sample coating to the coating produced from the target formulation;
monitoring at least one processing parameter when the sample coating composition is applied to the substrate or cured;
correlating any differences between the characteristics of the sample coating and the coating produced from the target formulation with the at least one monitored processing parameter; and
applying indicia to the sample coating after the sample coating is formed, applying indicia to the sample coating after the at least one processing parameter is monitored, and/or applying indicia to the sample coating after the characteristics of the sample coating are determined, wherein the indicia corresponds to the measured amount of each of the components, the characteristics of the sample coating, the monitored processing parameter, or a combination thereof.

2. The method of claim 1 , further comprising adding a reducer comprising water and/or an organic solvent to the components of the sample coating composition before the coating composition is applied to the substrate.

3. The method of claim 2 , further comprising measuring the amount of the reducer, and comparing the measured amount of the reducer with a target amount of the reducer.

4. The method of claim 1 , further comprising adding an additional amount of at least one of the components to the sample coating composition after the step of comparing the measured and target amounts of each of the components.

5. The method of claim 1 , wherein the characteristics of the sample coating include color characteristics, spectral characteristics, appearance characteristics, physical property characteristics, or a combination thereof.

6. The method of claim 1 , wherein the characteristics of the sample coating and the coating produced from the target formulation include color characteristics.

7. The method of claim 1 , wherein upon characterizing the sample coating as failing, performing steps of:
altering the target formulation for the coating composition by adjusting an amount of at least one of the components of the coating composition to provide an adjusted coating composition;
automatically dispensing the components of the adjusted coating composition into another container and measuring the amount of each of the components of the adjusted coating composition dispensed into the other container;
comparing the measured amount of each of the components with the altered target amount of each of the components;
applying the adjusted coating composition to a substrate and curing the adjusted coating composition to form an adjusted sample coating;
comparing characteristics of the adjusted sample coating with characteristics of an adjusted coating produced from the adjusted target coating formulation; and
correlating any differences between the characteristics of the adjusted sample coating and the adjusted coating produced from the adjusted target coating formulation with the comparison between the measured amount of each of the components and the target amount of each of the components of the adjusted coating composition.

8. The method of claim 1 , further comprising applying indicia to the sample coating after the sample coating is formed, wherein the indicia corresponds to the measured amount of each of the components, the characteristics of the sample coating, or a combination thereof.

9. The method of claim 1 , wherein the at least one monitored processing parameter comprises pressure level, delivery rate, or a combination thereof.

10. The method of claim 1 , wherein the at least one monitored processing parameter comprises flash time, cure time, or a combination thereof.

11. The method of claim 1 , wherein the coating composition is an auto refinish coating composition.

12. The method of claim 1 , wherein the coating composition is an architectural coating.

Assignees

• Lewis Mark D
• Robertson Walter J
• Kimbro Mary
• Goodnow Nathan
• Ppg Ind Ohio Inc

Inventors

• Lewis Mark D
• Robertson Walter J
• Kimbro Mary
• Goodnow Nathan

Classifications

• B05C11/1005

  responsive to condition of liquid or other fluent material already applied to the surface, e.g. coating thickness, weight or pattern · CPC title

• B05C9/14

  the auxiliary operation involving heating {or cooling} · CPC title

• B05D5/06

  to obtain multicolour or other optical effects (B05D5/02 takes precedence) · CPC title

• B05D5/00

  Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures · CPC title

• B01F13/1066 Primary

  Operations & Transport · mapped topic