Reaktionsgleichung
[CH2:1]=[O:2].[C:3]1(O)C=CC=CC=1.S(=O)(=O)(O)O.[C:15]1([CH3:22])[CH:20]=[CH:19][CH:18]=[C:17](C)[CH:16]=1>>[C:15]1([CH3:22])[CH:16]=[CH:17][CH:18]=[C:19]([CH:1]=[O:2])[C:20]=1[CH3:3]Komponenten
5
Versuchsvorschrift
A 2-liter separable flask equipped with a thermometer, a reflux condenser, and a stirrer was charged with 480 parts of 50% formalin, 110 parts of phenol, 202 parts of 98% industrial sulfuric acid, and 424 parts of m-xylene. The resulting mixture was allowed to react at 84° C. to 88° C. for 4 hours. After the reaction was completed, the reaction mixture was allowed to stand to separate a resin phase and a sulfuric acid aqueous phase. The resin phase was washed with water 3 times, and then unreacted m-xylene was removed under the conditions of 20 to 30 mmHg and 120° C. to 130° C. for 20 minutes. As a result, 480 parts of a phenol-modified xylene-formaldehyde resin having a viscosity of 1,050 mPa·s (25° C.) were obtained.
Aufarbeitung
- customA 2-liter separable flask equipped with a thermometer, a reflux condenser, and a stirrer
- customto react at 84° C. to 88° C. for 4 hours
- customto separate a resin phase
- washThe resin phase was washed with water 3 times
- customunreacted m-xylene was removed under the conditions of 20 to 30 mmHg and 120° C. to 130° C. for 20 minutes
- customa viscosity of 1,050 mPa·s (25° C.)
- customwere obtained
Quellen und Nachweise
- ORD-Eintrag
- ord-54c21f3fac0049fe8bebd26966dd0663
- Quelldatensatz
- uspto-grants-2012_01
- Patentnummer
- US08097665B2
Verknüpfte Notizen
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