Additionally, and in accordance with this invention, {HEAD ~ the mixed blowing agent} is composed of {TAIL ~ dichlorodifluoromethane} and another consistuent which is at least one fluorocarbon from the Group A, as defined hereinafter 
is composed of
Additionally , and in accordance with this invention , { HEAD ~ the mixed blowing agent } is composed of { TAIL ~ dichlorodifluoromethane } and another consistuent which is at least one fluorocarbon from the Group A , as defined hereinafter
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH