abstract |
Mo3404 PU-385 NOVEL AZEOTROPES AND THE USE THEREOF IN THE PRODUCTION OF RIGID FOAMS The present invention is directed to a novel azeotrope consisting essentially of from 22 to 32% by weight of methyl formate and from 68 to 78 % by weight of 2,2-dichloro-1,1,1-trifluoroethane and the use thereof in the production of rigid, closed cell foams. Mo3404 |