| abstract |
The present invention provides a blowing agent composition (B) comprising a hot melt urethane prepolymer (A) having an isocyanate group, and N, N'-dinitrosopentamethylenetetramine (b1), urea (b2), and a polyol (b3). It is to provide a moisture-curable hot melt urethane composition characterized in that it contains. In addition, after heat-melting the said hot melt urethane prepolymer (A), this invention mixes with the said foaming agent composition (B), apply | coats to a base material, Next, heat-processes at the temperature more than the heat-melting temperature of said (A). It is to provide a method for producing a foamed cured product of the moisture-curable hot-melt composition, characterized in that the foaming-curing by. The problem to be solved by the present invention is to provide a foaming system of a solvent which can obtain a foamed cured product having a good mixing and can maintain a good foaming state even in a thin film. |