| abstract |
It relates to a polyurethane foam preparation and a polyurethane polypolymer preparation for polyurethane foam having a high coloring and discoloration inhibiting property during storage for a long time, and a polyurethane foam composition which is excellent in storage stability and suitable for a resin premix. The polyurethane foam composition of the present invention, (i) at least one polyol wherein the polymer microparticles formed by polymerizing a polyoxyalkylene polyol and a compound having an unsaturated bond are dispersed in the polyoxyalkylene polyol, (ii) a compound having a P = N bond, (iii) an antioxidant having a hydroxyphenyl group, (iv) selected from the group consisting of acyclic aliphatic monocarboxylic acids having 2 to 25 carbon atoms, hydroxycarboxylic acids having 2 to 25 carbon atoms, polyvalent carboxylic acids having 20 to 60 carbon atoms, acids having specific aromatic monocarboxylic acids, sulfonic acids and ester sulfates; At least one acid or salt thereof, (v) a catalyst for producing polyurethane foam and (vi) a blowing agent. |