| abstract |
(57) [Abstract] (Correction) [Problem] A foaming agent can be decomposed in a synthetic resin accompanied by a curing reaction, and by addition of a decomposition accelerator, a wide range from near room temperature to the decomposition temperature of the foaming agent can be obtained. It can be decomposed and the synthetic resin is not limited to thermoplastic but can be from thermosetting to foaming of inorganic materials, and it is highly safe to the human body, does not cause environmental pollution, and foams because the foaming agent is liquid at room temperature. A foaming composition having excellent dispersibility in a body composition and capable of using existing foaming equipment, a synthetic resin in which a resin is dissolved or dispersed in water and / or an organic solvent, and a water-soluble polymer substance. A method for obtaining a foam by removing water or an organic solvent and simultaneously decomposing the same is provided. SOLUTION: An azodicarboxylic acid diester represented by the general formula ROOC-N = N-COOR (wherein R is a lower alkyl group, a phenyl group or a benzyl group) is added to an organic or inorganic material as a foaming agent. |