| abstract |
The present invention provides a urethane resin composition that is easy to handle and excellent in fire resistance. A urethane resin composition comprising a polyisocyanate compound, a polyol compound, a urethane resin curing catalyst, a foaming agent, a foam stabilizer and an additive, wherein the urethane resin curing catalyst comprises an amino compound, a tin compound and an acetylacetone metal. A flame retardant urethane resin composition comprising at least one selected from the group consisting of salts, wherein the additive comprises red phosphorus and a phosphate-containing flame retardant. The additive may include at least two selected from the group consisting of phosphate esters, bromine-containing flame retardants, boric acid-containing flame retardants, metal hydroxides, and antimony-containing flame retardants. [Selection figure] None |