Curable coating compositions
AssigneePPG Industries Ohio, Inc.
InventorsMarvin M. Pollum, Jr., Masayuki Nakajima, Hongying Zhou, Joseph P. Kriley, Brian K. Rearick
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Abstract
Disclosed herein are curable compositions comprising an epoxide-functional polymer and a curing agent that reacts with the epoxide-functional polymer that is activatable by an external energy source. The epoxide-functional polymer may be a solid a solid epoxide-functional polyurethane comprising a di-isocyanate. Also disclosed are articles comprising one of the compositions in an at least partially cured state positioned between first and second substrates. Also disclosed are methods of forming an adhesive on a substrate.
Claims21
A curable composition comprising:
- An epoxide-functional polyurethane comprising a di-isocyanate, wherein the epoxide-functional polyurethane comprises a solid at 25° C.;
- and
- a curing agent that reacts with the epoxide-functional polyurethane, wherein the curing agent is activatable by an external energy source.
the curable composition of claim 1 to at least a melting point of the curable composition and below an activation temperature of the curing agent;
- casting the curable composition into a thin film or a mold to form a hot melt;
- and
- cooling the casted curable composition to a temperature below the melting point of the curable composition.
A method of making a film or a reactive hot melt comprising:
Dependencies are inferred from the claim text.