Low-resilience polyurethane foam
AssigneesInoac Corporation, Inoac Slimflex Co., Ltd.
InventorsMasahito KOIDE, Kento UCHIDA, Eiji KARIYA
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Abstract
A low-resilience polyurethane foam is obtained by causing a reaction of a raw material composition containing a polyisocyanate component and a polyol component, and the polyisocyanate component contains an n-functional isocyanate (n≥3) and a bifunctional isocyanate prepolymer. The polyisocyanate component preferably has an average number of functional groups of 2.05 or more. The polyol component preferably includes one or more high molecular weight polyols, and one or more low molecular weight polyols.
Claims14
A low-resilience polyurethane foam, obtained by causing a reaction of a raw material composition containing a polyisocyanate component and a polyol component,
- wherein the polyisocyanate component contains an n-functional isocyanate (n≥3) and a bifunctional isocyanate prepolymer, and
- wherein a recovery speed is 1.5 seconds or more, the recovery speed being a time until a sample shape is restored when a load of 1 kg is applied to a compression surface having a diameter of 15 mm by a constant pressure loader for 5 seconds and then the load is released.
Dependencies are inferred from the claim text.