Patent ID: 7635724
Filing Date: 2009-12-22
Classification: C08G

Abstract:
1. A flexible polyurethane foam obtained by reacting a polyol composition with a polyisocyanate compound in the presence of a catalyst, a blowing agent and a foam stabilizer, characterized in that the polyol composition comprises a high molecular weight polyoxyalkylene polyol (A) and a polymer-dispersed polyol (C) containing fine polymer particles in a high molecular weight polyoxyalkylene polyol (B), and at least part of the fine polymer particles are fine polymer particles obtained by polymerizing a monomer containing a fluorinated acrylate or a fluorinated methacrylate; wherein with respect to a foam obtained by foaming into a thickness of 100 mm, when the deflection on 500 N pressure side obtained from a load-deflection curve as measured by means of a pressure plate (Tekken Plate) in accordance with JIS E7104 (2002), is from 5.0 to 55.0 mm, Y (mm) is from 22.5 to 33.0 mm, wherein Y is the value (the difference in deflection on pressure side) obtained by subtracting the deflection on 500 N pressure side from the deflection on 900 N pressure side.