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PROCESS FOR MANUFACTURING A LOAD FOAM IN LOW DENSITY FLEXIBLE CONVENTIONAL POLYURETHANE PIECES AND FLEXIBLE POLYURETHANE FOAM
PROCESS FOR MANUFACTURING A LOAD FOAM IN LOW DENSITY FLEXIBLE CONVENTIONAL POLYURETHANE PIECES AND FLEXIBLE POLYURETHANE FOAM
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机译:在低密度柔性常规聚氨酯泡沫和柔性聚氨酯泡沫中制造负载泡沫的过程
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摘要
A process for making low density and optionally low resilience, soft, flexible polyurethane slabstock foam having a substantially open cell structure without crushing, without requiring auxiliary inert blowing agents, by reacting under a condition which permits the foam to rise freely, a conventional hydroxyl-containing polyether polyol with a polyisocyanate at an isocyanate index of between about 60 and 95 in the presence of a foam processing aid comprising a low equivalent weight crosslinking agent and/or extending agent and, as needed, a cell opening agent.
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