POLYURETHANE, MICROCELULAR ELASTOMER WITH HIGH RESISTANCE

摘要

Low density, high (over 80%) resistance microcellular polyurethane elastomer is prepd. from (all pts.wt.): 25-30 polyether-triol premixed with 0-2 pts. diethylene-glycol; 0.3-0.5 water; 0.2-0.4 triethylene-diamine; 0.02-0.2 stannous-2-ethyl-hexanoate; 0.3-0.5 polyorganosiloxane and reacts with a quantity of toluylene-2,4-diisocyanate, to correspond to an isocyanate index of 100-105.