Formaldehyde → (Hydroxymethyl)melamine
Reaktionsgleichung
[CH2:1]=[O:2].[N:3]1[C:10]([NH2:11])=[N:9][C:7]([NH2:8])=[N:6][C:4]=1[NH2:5]>>[CH2:1]([NH:5][C:4]1[N:6]=[C:7]([NH2:8])[N:9]=[C:10]([NH2:11])[N:3]=1)[OH:2]Komponenten
3
Versuchsvorschrift
1,269 g of a 35% strength aqueous solution of formaldehyde (pH 3.7) are adjusted to pH 7.3 in a 4-liter three-necked flask by adding 1.8 g of borax. After 252 g of melamine have been added, methylolation is carried out at 75° C. for 2 hours, while stirring with a hook stirrer. The readily stirrable slurry of methylolmelamine obtained is processed further, as described in Example 1, after 1,600 g of methanol have been added.
Quellen und Nachweise
- ORD-Eintrag
- ord-f62a314fa7a2432e9c5130ab7be0d24c
- Quelldatensatz
- uspto-grants-1980_09
- Patentnummer
- US04223141
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