abstract |
A CURING AGENT AND HARDENER SPECIFICALLY FOR URETHANE RESIN COMPOSITIONS, IS MADE BY PROCESSING 4,4''-METHYLENE BIS(2-CHLOROANILLINE) OR 3,3''-DICHLOROBENZIDINE, OR MIXTURES THEREOF, WITH SPECIFIC ACTIVE ALDEHYDE COMPOUNDS, WHICH AGENT IS A LIQUID, READILY DISPERSED IN A WIDE VARIETY URETHANE RESIN COMPOSITIONS, AND RESULTING IN ROOM TEMPERATURE CURING OF SAID URETHANE COMPOSITIONS. |