Formaldehyde → Formaldehyde

HRID 477431Notes

Reaction equation

HRID 477431 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>[N:1]1[C:8]([NH2:9])=[N:7][C:5]([NH2:6])=[N:4][C:2]=1[NH2:3].[CH2:10]=[O:11].[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

6

Reactant 2

HCID 712FormaldehydeHCID 7955Melamine

Product 3

HCID 712FormaldehydeHCID 7955MelamineHCID 93374Melamine formaldehyde

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Separately 6 g of melamine, 11 g of an aqueous 37 wt % formaldehyde solution and 83 g of water were heated at 60° C. with stirring, and after 30 minutes a transparent aqueous mixture solution of melamine, formaldehyde and melamine-formaldehyde primary condensation product was obtained. The thus prepared aqueous mixture solution had a pH value of from 6 to 8. This was added to the above described emulsion and blended, and an aqueous 10 wt % phosphoric acid solution was added thereto to adjust the pH value of the resulting liquid to 6.0. The temperature of the liquid was elevated to 65° C. and the liquid was continuously stirred for about 1 hour and thus the encapsulation was completed.

Sources & evidence

ORD record
ord-ccac366f07d14d238a0f56f6fa2461b0
Source dataset
uspto-grants-1989_12
Patent number
US04888334

Reaction notes

Loading…