Process for the preparation of a rigid polyurethane foam.
作者： Angelina Maria Dolores Fricot , Claudio Galina , Koen Christophe Jeroen Vanlandschoot
DOI:
关键词: Polymer chemistry 、 Hydroxyl value 、 Catalysis 、 Isocyanate 、 Open cell 、 Polyolefin 、 Polyol 、 Materials science 、 Silicon oil 、 Polyurethane
摘要: Process for the preparation of a rigid, low density, open cell polyurethane foam, which process comprises reacting (a) polyisocyanate, (b) polyether polyol having hydroxyl value at least 150 mg KOH/g, (c) polyolefin mono-ol in an amount from 0.01 to 3 pbw per 100 polyol, (d) silicon oil such that weight ratio oil: is range 0.2 15, (e) 2 10 water (f) urethane catalyst, and optionally (h) usual auxiliaries, wherein polyisocyanate used isocyanate index 75 120, preferably 80 110.
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