Formaldehyde → Formaldehyde;phenol

HRID 436714Notes

Reaction equation

HRID 436714 reaction equation
C=O.[C:3]1([OH:9])C=CC=CC=1.C=O.[C:12]1([OH:18])[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.O>O>[CH2:3]=[O:9].[C:12]1([OH:18])[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1

Participants

5

Reactant 3

HCID 712Formaldehyde5×HCID 996PhenolHCID 86734814HCID 86734814, compound

Product 1

HCID 172281Formaldehyde;phenol

Reagents, catalysts & solvents 1

HCID 962WaterSolvent3×

Procedure

A resole phenol-formaldehyde resin is produced as follows: There is placed in a reaction kettle a mixture comprising 55% by weight of phenol (98% conc.) with 45% by weight of a 50% formaldehyde in water. A more dilute solution of formaldehyde in water can be used producing similar results, such as the commercial 37% formaldehyde solution commonly used in the resin industry. Water may, if required, be vacuum distilled off to produce a resin with the desired amount of water remaining. The maximum amount of water allowable in the initial blend of phenol and formaldehyde will be determined by the reactivity of the phenol-formaldehyde-water mix. That is when a more dilute solution of formaldehyde in water is used, the excess water descreases the reactivity of the mix. It is therefore desirable to use at least the 37% solution of formaldehyde.

Workup

  1. distillationdistilled off
  2. customto produce a resin with the desired amount of water remaining
  3. additionmix

Sources & evidence

ORD record
ord-0ef80631ae524a40bb63dd7acb67913b
Source dataset
uspto-grants-1977_06
Patent number
US04028271

Reaction notes

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