{TAIL ~ The maximum useful proportion} of such blowing agent in composition of {HEAD ~ flowable, foamable gel} is in the order of about 0.12 to 0.18 gram moles per 100 grams of the starting resin, being greater, for example, as the proportion of dichlorodifluoromethane is greater in the mixed blowing agent 
{ TAIL ~ The maximum useful proportion } of such blowing agent in composition of { HEAD ~ flowable , foamable gel } is in the order of about 0.12 to 0.18 gram moles per 100 grams of the starting resin , being greater , for example , as the proportion of dichlorodifluoromethane is greater in the mixed blowing agent
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH