Formaldehyde → Melamine formaldehyde

HRID 224540Notes

Reaction equation

HRID 224540 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

HCID 712FormaldehydeHCID 7955Melamine

Product 1

HCID 93374Melamine formaldehyde

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

10 gr of melamine, 25 gr of 37% formaldehyde and 65 gr of water were mixed and, after adjusting pH to 10.0, the mixture was reacted at 60° C. for 30 minutes to obtain a transparent melamine-formaldehyde precondensate. Then 100 gr of a hydrophobic oil was added thereto and the mixture was agitated and emulsified. The oil phase left slightly on the surface and even the reverse phase (W/O) was seen partly, and no good emulsion could be obtained. A microscopic observation showed precipitation of the melamine-formaldehyde resin without encapsulation of oil, and the products could not be regarded as capsules.

Workup

  1. customthe mixture was reacted at 60° C. for 30 minutes

Sources & evidence

ORD record
ord-c6f41a467c574c4d9936eb519223f87e
Source dataset
uspto-grants-1980_11
Patent number
US04233178

Reaction notes

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