Formaldehyde → Resorcinol-formaldehyde resin

HRID 839258

Reaktionsgleichung

Reaktionsgleichung von HRID 839258
[CH2:1]=[O:2].[C:3]1([CH:10]=[CH:9][CH:8]=[C:6]([OH:7])[CH:5]=1)[OH:4].[OH-].[Na+]>>[C:3]1([CH:10]=[CH:9][CH:8]=[C:6]([OH:7])[CH:5]=1)[OH:4].[CH2:1]=[O:2]

Komponenten

4

Edukt 3

HCID 712FormaldehydeHCID 5054Resorcinol2×HCID 14798Sodium Hydroxide

Produkt 1

HCID 159980Resorcinol-formaldehyde resin

Versuchsvorschrift

Formaldehyde in aqueous solution is added to the granules of resorcinol silicoformate acid in the ratio of about 1 to 1 mols. Sodium hydroxide is added until the pH is between 10 to 12. The mixture is then heated to 50° to 85° C while agitating and the resorcinol silicoformate goes into solution. In 30 to 90 minutes the reaction is complete, thereby producing a formaldehyde resorcinol silicoformate resinous compound. This compound is soluble in acetone and other organic solvents.

Aufarbeitung

  1. temperatureThe mixture is then heated to 50° to 85° C

Quellen und Nachweise

ORD-Eintrag
ord-1b419760217246bfb5b8d0b275a3e7aa
Quelldatensatz
uspto-grants-1978_06
Patentnummer
US04094825

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