| 摘要 |
PURPOSE:A stabilizer consisting of at least one selected from esters of acrylic or methacrylic acid and monohydric alcohols, glycidyl ethers and so on and of a nitroalkane is used to inhibit the decomposition of Flon in the foaming of a phenolic resin. CONSTITUTION:In order to inhibit Flon used as a foaming agent for a phenolic resin or its modified product from decomposition, a stabilizer consisting of at least one selected from esters from acrylic or methacrylic acid and a monohydric alcohol, glycidyl ethers, N-methylmorpholine, and aliphatic unsaturated alcohols and of a nitroalkane is used, preferably in an amount of 0.01-5wt%, especially 0.05-1wt% based on Flon to stabilize Flon.
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