17 THERMALLY INSULATING FOAM CONTAINING MICRO-ENCAPSULATED PHASE CHANGE MATERIAL WHICH CHANGE FROM A SOLID TO A LIQUID STATE AT A PREDETERMINED TEMPERATURE AND ARE SEALED WITHIN A MULTIPLICITY OF POLYMERIC SHELLS, FOR USE IN RACE CAR HELMETS, SKI BOOTS, CAMPING MATS, STADIUM SEATS, WINTER BOOTS AND CLOTHING; MICRO-ENCAPSULATED PHASE CHANGE MATERIAL WHICH CHANGE FROM A SOLID TO A LIQUID STATE AT A PREDETERMINED TEMPERATURE AND ARE SEALED WITHIN A MULTIPLICITY OF POLYMERIC SHELLS, FOR USE IN PAINTS, COATINGS, EPOXIES, COOLING FLUIDS, THERMALLY INSULATING FOAMS TO BE USED IN CLOTHING AND STRUCTURAL INSULATION