Formaldehyde → Resorcinol-formaldehyde resin

HRID 600121

Reaktionsgleichung

Reaktionsgleichung von HRID 600121
[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]

Komponenten

5

Edukt 3

HCID 712FormaldehydeHCID 5054ResorcinolHCID 14798Sodium Hydroxide

Produkt 1

HCID 159980Resorcinol-formaldehyde resin

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

7.31 parts by weight of resorcin and 10.77 parts by weight 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, or RF resin) having a solid content of 6.40% by weight. Then, a chlorosulfonated polyethylene rubber (CSM) latex was added to the aqueous RF solution and the resulting mixture was aged for 12 hours to provide a resorcin-formalin-latex (RFL).

Aufarbeitung

  1. additionwere mixed together

Quellen und Nachweise

ORD-Eintrag
ord-011f9b015b7e4f65929789adc096ffce
Quelldatensatz
uspto-grants-2011_03
Patentnummer
US07901313B2

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