Cationic electrodepositable coatings comprising rosin
AssigneePPG Industries Ohio, Inc.
InventorsDavid Fenn, Gregory J. McCollum
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Abstract
Cationic electrodepositable coatings comprising rosin, wherein the rosin forms part of the cationic resin backbone, are disclosed.
Claims18
A cationic electrodepositable coating comprising rosin, wherein the rosin is reacted with an epoxy resin having an epoxide equivalent weight of 180 to 1200, and the reaction product of rosin and epoxy resin forms part of a cationic resin backbone of the coating.
A cationic electrodepositable coating comprising rosin, wherein the rosin is reacted with an epoxy resin, and the reaction product of rosin and epoxy resin forms part of a cationic resin backbone of the coating, wherein the rosin is reacted with a dienophile comprising a carboxylic group prior to being reacted with an epoxy resin, wherein the epoxy resin comprises the diglycidyl ether of bisphenol A.
A cationic electrodepositable coating comprising rosin, wherein the rosin is reacted with an epoxy resin, and the reaction product of rosin and epoxy resin forms part of a cationic resin backbone of the coating, wherein the rosin is reacted with a linking molecule prior to being reacted with an epoxy resin, wherein the epoxy resin comprises the diglycidyl ether of bisphenol A.
Dependencies are inferred from the claim text.