Thermosetting coatings for particulate materials and methods of application

A process for coating particles with a thermosetting composition comprising:

• suspending particles in a liquid to form a first slurry;
• mixing predetermined amounts of an azido-terminated first compound and an ethynyl-(acetylene-) terminated second compound with said first slurry to form a second slurry of particles having a mixture of azido-terminated first compound and ethynyl-(acetylene-) terminated second compound disposed on the surface of each particle;
• and
• stirring said second slurry at a predetermined temperature for a predetermined time to allow substantially complete reaction of the azido-termination groups of the first compound with the ethynyl-(acetylene-) termination groups of the second compound to form triazole ring structures linking molecules of the first compound with molecules of the second compound to form a thermoset polymeric coating on the surface of each particle.