Formaldehyde → Melamine formaldehyde
Reaction equation
[N:1]1[C:8]([NH2:9])=[N:7][C:5]([NH2:6])=[N:4][C:2]=1[NH2:3].[CH2:10]=[O:11]>O>[CH2:10]=[O:11].[N:1]1[C:8]([NH2:9])=[N:7][C:5]([NH2:6])=[N:4][C:2]=1[NH2:3]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
Separately, 6 g of melamine, 11 g of a 37 wt% of formaldehyde aqueous solution, and 83 g of water were heated to 60° C. under stirring, and, after 30 minutes, a transparent melamine-formaldehyde incipient condensate solution was obtained. This aqueous solution had a pH of 6 to 8. The incipient condensate solution obtained as described above was added to the above-described emulsion and mixed. The pH of the solution was adjusted to 6.0 by adding a 20 wt% acetic acid solution under stirring. Then, the solution temperature was raised to 65° C., and the stirring was continued for 30 minutes to form microcapsules.
Sources & evidence
- ORD record
- ord-d0a3e6068f65410da3fee26d4a3a81eb
- Source dataset
- uspto-grants-1984_05
- Patent number
- US04447075
Reaction notes
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