Methods and compositions for pigmented self-stratifying coatings
AssigneesToyota Motor Engineering & Manufacturing North America, Inc., Eastern Michigan University
InventorsJamil Baghdachi, Heidi Rosalia Perez Hernandez, Cynthia Gazepis Templeman, Halfeng He
Life of this patent
Estimating the term…
Abstract
A coating composition may include a polyol, a silsesquioxane, a polyurethane dendrimer, a crosslinker, and a pigment in contact with a dispersing agent. A process for preparing a coating composition is further disclosed including the step of contacting a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker to form a coating mixture dispersed within a solvent. The process further includes adding a pigment in contact with a dispersing agent to the coating mixture, and forming a self-stratifying coating having at least one layer, wherein the pigment resides substantially within one of the at least one layer.
Claims20
A coating composition comprising:
- a polyol, a silsesquioxane, a polyurethane dendrimer, a crosslinker, and a pigment in contact with a dispersing agent.
A self-stratifying coating composition comprising:
- a coating mixture comprising a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker;
- and
- pigment particles in contact with a dispersing agent in an amount sufficient to stabilize location of the pigment particles in the coating mixture.
A process for preparing a coating composition, the process comprising:
- contacting a polyol, a silsesquioxane, a polyurethane dendrimer, and a crosslinker to form a coating mixture dispersed within a solvent;
- adding a pigment in contact with a dispersing agent to the coating mixture;
- and
- forming a self-stratifying coating having at least one layer, wherein the pigment resides substantially within one of the at least one layer.
Dependencies are inferred from the claim text.