Formaldehyde → Urea

HRID 1018903

Reaction equation

HRID 1018903 reaction equation
[NH2:1][C:2]([NH2:4])=[O:3].[CH2:5]=[O:6]>>[NH2:1][C:2]([NH2:4])=[O:3].[CH2:5]=[O:6].[NH2:1][C:2]([NH2:4])=[O:3]

Participants

4

Reactant 2

HCID 712FormaldehydeHCID 1176Urea

Product 2

HCID 1176UreaHCID 62705Urea formaldehyde foam

Procedure

8.9 kg of urea and 20.5 kg of formalin (37%-formaldehyde aqueous solution adjusted to pH 8.5 with triethanolamine) were mixed under stirring and allowed to react with each other for 60 min. at 70° C. to form a urea resin prepolymer (formaldehyde/urea=1.8 (by mol)) liquid.

Workup

  1. customto react with each other for 60 min. at 70° C.

Sources & evidence

ORD record
ord-c538a986c1e74550b5f5796ca3a626fc
Source dataset
uspto-grants-2002_11
Patent number
US06486099B2

Linked notes

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