Methacrylic Acid → Methacrylic Acid
Reaction equation
[Na:1].[CH2:2]1[O:4][CH2:3]1.[C:5]([OH:10])(=[O:9])[C:6]([CH3:8])=[CH2:7].[CH2:11]=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.C(OCCCC)(=O)C=C.S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+]>O>[CH:11]([CH2:7][C:6](=[CH2:8])[C:5]([OH:10])=[O:9])=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.[Na:1].[CH2:3]1[O:4][CH2:2]1.[C:5]([OH:10])(=[O:9])[C:6]([CH3:8])=[CH2:7]Participants
Reactant 6
Product 3
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 75 °C
Procedure
Into a reaction vessel to which a stirring rod and a thermometer had been set, 683 parts by mass of water, 11 parts by mass of sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid (“ELEMINOL RS-30,” product of Sanyo Chemical Industries Ltd.), 83 parts by mass of styrene, 83 parts by mass of methacrylic acid, 110 parts by mass of butyl acrylate and 1 part by mss of ammonium persulfate were charged, and then stirred at 400 rpm for 15 min to thereby obtain a white emulsion. The resultant emulsion was heated to a system temperature of 75° C. and was allowed to react for 5 hours. Then, 30 parts by mass of a 1% by mass aqueous ammonium persulfate solution was added thereto, followed by aging at 75° C. for 5 hours, to thereby obtain an aqueous dispersion liquid [fine resin particle dispersion liquid 1] of a vinyl resin (a copolymer of styrene-methacrylic acid-sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid).
Workup
- customInto a reaction vessel to which a stirring rod and a thermometer had been set
- customto thereby obtain a white emulsion
- customto react for 5 hours
- waitby aging at 75° C. for 5 hours
Sources & evidence
- ORD record
- ord-da04b86e91f14cdfa63bc967e05e2c10
- Source dataset
- uspto-grants-2015_03
- Patent number
- US08973759B2
Reaction notes
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