How does a fomialdehyde-modified alkyd resin react with a melamine resin?
Formaldehyde reacts with amino compounds, including melamine resins, in such a way that easily activated hydrogen atoms are utilised on nitrogen. Adducts are formed, or there is condensation, leading to methylol groups. These can be further reacted by esterification or ethertication, which leads to crosslinkage of the alkyd and the melamine resin.
Formaldehyde-modfied alkyd and melamine
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