Patent ID: 11945964
Assignee: AXALTA COATING SYSTEMS IP CO., LLC
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A system for applying a first coating composition and a second coating composition, the system comprising:
an atomizing applicator;
a high transfer efficiency applicator comprising an array of nozzles wherein each nozzle defines a nozzle orifice having a diameter of from 0.00002 m to 0.0004 m;
a first reservoir in fluid communication with the atomizing applicator and configured to contain the first coating composition;
a second reservoir in fluid communication with the high transfer efficiency applicator and configured to contain the second coating composition;
a substrate assembly comprising a metal-containing substrate and a plastic-containing substrate, the metal-containing substrate coupled to the plastic-containing substrate;
wherein the atomizing applicator is configured to receive the first coating composition from the first reservoir and configured to apply the first coating composition to the metal-containing substrate; and
wherein the high transfer efficiency applicator is configured to receive the second coating composition from the second reservoir and configured to apply the second coating composition to the plastic-containing substrate through the nozzle orifice without atomization such that at least 99.9% of the applied second coating composition contacts the plastic-containing substrate,
wherein the second coating composition has a solids content of from about 5 to about 70 weight % based on a total weight of the second coating composition as measured in accordance with ASTM D2369 and comprises: a carrier; a binder present in an amount of from 5 to about 70 weight percent based on a total weight of the second coating composition; and a crosslinker present in an amount of from about 0.1 to about 25 weight percent based on a total weight of the second coating composition,
wherein the second coating composition has a viscosity of from about 0.0002 Pa*s to about 0.2 Pa*s as measured according to ASTM 7867-13 with cone-plate or parallel at a shear rate of 1000 sec-1;
wherein the second coating composition has an Ohnesorge number (Oh) of from about 0.01 to about 12.6;
wherein the second coating composition has a Reynolds number (Re) of from about 0.02 to about 6.200;
wherein the second coating composition has a Deborah number (De) of from greater than 0 to 1730;
wherein the second coating composition has a density of from about 838 kg/m3 to about 1557 kg/m3;
wherein the second coating composition has a surface tension of from about 0.015 N/m to about 0.05 N/m; and
wherein the second coating composition has a relaxation time of from about 0.00001 to about 1 s.