| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a flexible polyurethane foam for a heating carpet by integral molding with a surface material, excellent in productivity and physical properties, aiming at filling property compatible with curability. SOLUTION: This method for producing the flexible polyurethane foam for the heating carpet by the integral molding comprises reacting an organic polyisocyanate (A) described below and a polyol (B) in the presence of a catalyst (C) described below, a foaming agent (D) and a foaming conditioner (E), and in the absence of (halogenated)phosphoric esters in a mold where a surface material and heating elements are set in advance. The organic polyisocyanate (A) is an MDI-based polyisocyanate mixture (a1) of an MDI (a1-1) and an MDI-based polynuclear compound (a1-2) having≥3 functional groups in a mass ratio (a1-1):(a1-2) of 30:70 to 70:30. The catalyst (C) comprises an isocyanate-reactive aliphatic tertiary amine (C1), an isocyanate-nonreactive aliphatic tertiary amine carboxylate (C2) and a heterocyclic aromatic tertiary amine (C3). COPYRIGHT: (C)2007,JPO&INPIT |
