Formaldehyde → Resorcinol-formaldehyde resin

HRID 478123

Reaction equation

HRID 478123 reaction equation
[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].[CH2:9]=[O:10].[OH-].[Na+]>O>[C:1]1([CH:8]=[CH:7][CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].[CH2:9]=[O:10]

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 5054ResorcinolHCID 14798Sodium Hydroxide

Product 1

HCID 159980Resorcinol-formaldehyde resin

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

7.31 parts by weight of resorcin and 10.77 parts by of formalin (having a concentration of 37% by weight) were mixed together. An aqueous solution of sodium hydroxide (containing 0.33 parts by weight of sodium hydroxide) was added to the resulting mixture and stirred. Thereafter 160.91 parts by weight of water were added and the mixture was aged for 5 hours to provide an aqueous solution of resorcin-formalin resin (resorcin-formalin primary condensate, referred to RF) having a solid content of 6.40 % by weight.

Workup

  1. additionwere mixed together

Sources & evidence

ORD record
ord-cac7dc5fbc6f4ffc85425c4077b9a4ad
Source dataset
uspto-grants-2003_11
Patent number
US06641905B1

Linked notes

Loading…