| 摘要 |
PROBLEM TO BE SOLVED: To provide a low rebound flexible polyurethane foam wherein generation of finger marks (a handprint generated in demolding of a polyurethane foam or the like) is fully suppressed. SOLUTION: The low rebound flexible polyurethane foam is produced by reacting and foaming a mixed liquid containing an organic polyisocyanate (A), a polyol (B), a chain extender (C), a catalyst (D) and a foaming agent (E). The density of the flexible polyurethane foam is in the range of 65-95 kg/m<SP>3</SP>, and the organic polyisocyanate (A) contains 52.5-62.5 mass% diphenylmethane diisocyanate, 16.5-38.5 mass% polymethylene polyphenylene polyisocyanate, and 9.0-21.0 mass% diphenylmethane diisocyanate carbodiimide modification based on 100 mass% of the organic polyisocyanate (A). COPYRIGHT: (C)2009,JPO&INPIT
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