Vinyl Acetate → Butyl acrylate vinyl acetate
Reaction equation
S(OOS([O-])(=O)=O)([O-])(=O)=O.[K+].[K+].[C:13]([O:16][CH:17]=[CH2:18])(=[O:15])[CH3:14].[C:19]([O:23][CH2:24][CH2:25][CH2:26][CH3:27])(=[O:22])[CH:20]=[CH2:21].S(O)O.C=O>O>[C:13]([O:16][CH:17]=[CH2:18])(=[O:15])[CH3:14].[C:19]([O:23][CH2:24][CH2:25][CH2:26][CH3:27])(=[O:22])[CH:20]=[CH2:21]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 80 °C
Procedure
A vinyl acetate-butyl acrylate copolymer was prepared utilizing the sulfonate product of Example 5 as the sole surfactant. A one liter resin kettle was charged with a solution of 31.7 grams of the sulfonate product of Example 5 in 281 grams of deionized water. The solution was heated to 80° C. under a nitrogen atmosphere. One gram of potassium persulfate (K2S2O8) was added to the solution followed by the slow addition of 50 milliliters of a mixture comprising 202 grams of vinyl acetate and 36 grams of butyl acrylate. The polymerization temperature was maintained at 75°-80° C. for 30 minutes after the addition of the 50 milliliter portion of the monomer mixture. The remainder of the monomer mixture was charged to the kettle over a 3-4 hour period while maintaining the polymerization temperature at between 70° C. and 75° C. The contents of the resin kettle were post stirred at 70° C. for 1 hour and then 10 grams of 2 percent formaldehyde sulfoxylate added to the kettle to complete the polymerization.
Workup
- temperatureThe polymerization temperature was maintained at 75°-80° C. for 30 minutes
- additionafter the addition of the 50 milliliter portion of the monomer mixture
- additionThe remainder of the monomer mixture was charged to the kettle over a 3-4 hour period
- temperaturewhile maintaining the polymerization temperature at between 70° C. and 75° C
- customthe polymerization
Sources & evidence
- ORD record
- ord-b214d6e49012453ab068104fa36fe47c
- Source dataset
- uspto-grants-1992_11
- Patent number
- US05162475
Reaction notes
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