| 摘要 |
PURPOSE: A low temperature curable hardener is provided to exhibit high luster, surface appearance, flexibility, and impact resistance. CONSTITUTION: A low temperature curable hardener comprises: one or more aldehyde compounds; one or more phenolic compounds; and one or more N,N'-dimethyl diamine polymers with number average molecular weight(Mn) of 140-1,000. The aldehyde compounds contain formaldehydes. The phenolic compounds contain phenol, cresol, tertial-butyl phenol, nonyl phenol, cardanol, or their mixture. The N,N'-dimethyl diamine polymers contain poly(N-methyl-azetidine) or poly(N-methyl-aza cycloheptane).
|
