Formaldehyde → Formaldehyde--4-nonylphenol (1/1)
Reaction equation
C1(C)C(C)=CC=CC=1.[CH3:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][C:18]1[CH:19]=[CH:20][C:21]([OH:24])=[CH:22][CH:23]=1.[CH2:25]=[O:26].C(C1C=CC=CC=1S(O)(=O)=O)CCCCCCCCCCC>O>[CH3:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([OH:24])=[CH:20][CH:19]=1.[CH2:25]=[O:26]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 90 °C
Procedure
119 g of xylene are added to 440 g of nonylphenol, and 60 g of paraformaldehyde are metered in at 40° C. Thereafter 1.5 g of dodecylbenzenesulfonic acid are added at 35° C., after which an exothermic condensation begins. The reaction temperature is kept at 65°-70° C. for 3 hours by cooling. The mixture is then heated at 90° C. for 2 hours. In order to complete the reaction, the mixture is refluxed for 4 hours at 95°14 100° C. Thereafter, the water of reaction is distilled off, and removal of water is completed by azeotropic distillation with xylene for 6 hours. After the mixture has cooled, the nonylphenol/formaldehyde resins is obtained as the 75-80% strength solution in xylene, having a medium viscosity. This is Example b1 in the table below.
Workup
- customare metered in at 40° C
- customafter which an exothermic condensation
- temperatureby cooling
- customthe reaction
- temperaturethe mixture is refluxed for 4 hours at 95°14 100° C
- distillationis distilled off
- customremoval of water
- distillationis completed by azeotropic distillation with xylene for 6 hours
- temperatureAfter the mixture has cooled
Sources & evidence
- ORD record
- ord-87a1480d3a74426b8bf6f071e1911d0a
- Source dataset
- uspto-grants-1995_12
- Patent number
- US05472617
Reaction notes
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