Methods for producing 1,5,7-triazabicyclo[4.4.0]dec-5-ene by reaction of a disubstituted carbodiimide and dipropylene triamine
AssigneePPG Industries Ohio, Inc.
InventorsChristopher Dacko, Richard F. Karabin, Craig Wilson, Steven R. Zawacky
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Abstract
Methods for producing 1,5,7-triazabicyclo[4.4.0]dec-5-ene using a disubstituted carbodiimide, dipropylene triamine and optionally an ethereal solvent and/or an alcohol are disclosed. Use of 1,5,7-triazabicyclo[4.4.0]dec-5-ene produced by this method in an electrodepositable coating composition, and electrophoretic deposition of such coating onto a substrate to form a coated substrate, are also disclosed.
Claims19
An electrodepositable coating composition comprising 1,5,7-triazabicyclo[4.4.0]dec-5-ene and an epoxy functional polymer that react to form a reaction product, wherein the 1,5,7-triazabicyclo[4.4.0]dec-5-ene is formed by heating a mixture comprising a disubstituted carbodiimide, dipropylene triamine and an ethereal solvent and/or an alcohol at a temperature of at least 160° C. to cause the disubstituted carbodiimide to react with the dipropylene triamine.
An electrodepositable coating composition comprising 1,5,7-triazabicyclo[4.4.0]dec-5-ene and an epoxy functional polymer that react to form a reaction product, wherein the 1,5,7-triazabicyclo[4.4.0]dec-5-ene is formed by heating a mixture comprising a disubstituted carbodiimide and dipropylene triamine at a temperature of at least 160° C. to cause the disubstituted carbodiimide to react with the dipropylene triamine.
Dependencies are inferred from the claim text.