| 摘要 |
SMOKE SUPPRESSED RIGID POLYURETHANE FOAM of the Invention Smoke suppressed rigid polyurethane foams are prepared from a reaction mixture comprising as the smoke suppressant additive a metal salt of a: dialkyl dithiocarbamate, a mercaptobenzothiazole a 2,5-dimercapto-1,3,4-thiadiazole, a mercaptotriazine a hydroxy thiophenol or an aliphatic dimercapto compound of 2 to 10 carbons. |
