Formaldehyde → Melamine formaldehyde

HRID 1018904Notes

Reaction equation

HRID 1018904 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

Separately, 4.3 kg of melamine and 10.4 kg of formalin (adjusted to pH 8.5 by addition of 2%-NaOH aqueous solution) were mixed together with 15.3 kg of warm water under stirring and allowed to react with each other for 30 min. at 50° C. to form a melamine resin prepolymer (formaldehyde/melamine=4 (by mol)) liquid.

Workup

  1. customto react with each other for 30 min. at 50° C.

Sources & evidence

ORD record
ord-31c59596b52b48e4b9825ea326baf06e
Source dataset
uspto-grants-2002_11
Patent number
US06486099B2

Reaction notes

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