Verfahren zur Herstellung von elastischen Polyurethan-Formkörpern mit kompakter Oberfläche und zelligem Kern
摘要
A process for the production of elastic polyurethane mouldings with compact surfaces and cellular cores by reacting a) modified organic polyisocyanates with b) at least one compound with at least two reactive hydrogen atoms and possibly c) chain-lengthening agents in the presence of d) blowing agents, e) catalysts and possibly f) conventional auxiliaries and/or additives, in a closed mould under compression, in which at least one reaction product of pure MDI and at least one polyether alcohol (polyoxyalkylene polyol) with an NCO content of < 15 wt.% is used as the modified organic polyisocyanate.
申请公布号
DE19618392(A1)
申请公布日期
1997.11.13
申请号
DE19961018392
申请日期
1996.05.08
申请人
BASF AG, 67063 LUDWIGSHAFEN, DE
发明人
VOLKERT, OTTO, DR., 67273 WEISENHEIM, DE;PITTRICH, KLAUS, 82211 HERRSCHING, DE