| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyurethane foam and poly-isocyanurate foam, and a manufacturing method therefor.SOLUTION: Provided is a closed cell polyurethane foam and poly-isocyanurate foam manufactured by using a polyol premix composition containing a. a hydro-halo-olefin blowing agent, b. one or more polyol, c. one or more surfactant, and d. a non-amine catalyst selected from an inorganic metal compound catalyst, an organometallic compound catalyst, a quaternary ammonium carboxylate catalyst and a combination thereof and in which the inorganic metal compound catalyst or organometallic compound catalyst independently contains an organic salt selected from bismuth, lead, tin, zinc, chromium, cobalt, copper, iron, manganese, magnesium, potassium, sodium, titanium, mercury, antimony, uranium, cadmium, thorium, aluminum, nickel, cerium, molybdenum, vanadium, zirconium and a combination thereof, by 0.25 to 3.0 wt.%. |
