HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Formaldehyde → Resorcinol-formaldehyde resin
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Formaldehyde | HCID 712 | — |
| Edukt | Resorcinol | HCID 5054 | — |
| Lösungsmittel | Water | HCID 962 | — |
| Produkt | Resorcinol-formaldehyde resin | HCID 159980 | — |
Reaktionsschritte
Into a 500 ml flask are charged resorcinol (110 g, 1.0 mol) and 37% formalin (44.5 g), and the mixture is reacted at 70° C. for 5 hours. After the reaction, water is distilled off at 150° C. under reduced pressure (inner pressure: 25 mmHg) to give a resorcinol/formaldehyde resin having a softening point of 98° C. (Resin X).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04257926 |
| Quelldatensatz | uspto-grants-1981_03 |
| ORD ID | ord-bd5b7fdfa81e4547860d529cfbdcef54 |
| Quellennotiz | uspto-grants-1981_03 |