Sulfate Ion → Sulfate Ion

HRID 2400241Notes

Reaction equation

HRID 2400241 reaction equation
[Na:1].[S:2]([O-:6])([O-:5])(=[O:4])=[O:3].[CH2:7]1[O:9][CH2:8]1.[C:10]([OH:15])(=[O:14])[C:11]([CH3:13])=[CH2:12].[CH2:16]=[CH:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.[C:24]([OH:29])(=[O:28])[C:25]([CH3:27])=[CH2:26].S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+]>O>[CH:16]([CH2:12][C:11](=[CH2:13])[C:10]([OH:15])=[O:14])=[CH:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.[Na:1].[S:2]([O-:6])([O-:5])(=[O:4])=[O:3].[CH2:8]1[O:9][CH2:7]1.[C:24]([OH:29])(=[O:28])[C:25]([CH3:27])=[CH2:26]

Participants

10

Reactant 6

HCID 1117Sulfate IonHCID 4093Methacrylic AcidHCID 7501StyreneHCID 62648Ammonium Persulfate2×HCID 5360545SodiumHCID 21880491Methacrylic acid ethylene oxide

Product 3

HCID 1117Sulfate IonHCID 21880491Methacrylic acid ethylene oxideHCID 86592924Styrene-methacrylic acid sodium

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A reactor to which a stirring rod and a thermometer was set was charged with 683 parts of water, 11 parts of a sodium salt of sulfate of methacrylic acid ethylene oxide adduct (ELEMINOL RS-30, manufactured by Sanyo Chemical Industries, Ltd.), 138 parts of styrene, 138 parts of methacrylic acid, and 1 part of ammonium persulfate, which was stirred at 400 rpm for 15 minutes, and a white emulsion was obtained. This was heated until a temperature in the system reached 75° C. and reacted for 5 hours. Further, it was added with 30 parts of a 1-% ammonium persulfate aqueous solution and aged at 75° C. for 5 hours, and an aqueous dispersion of a vinyl resin (a copolymer of styrene—methacrylic acid—sodium salt of sulfate of methacrylic acid ethylene oxide adduct) [fine particles dispersion 1] was obtained. A volume-average particle diameter of the obtained [fine particles dispersion 1] was measured with LA-920 (manufactured by Horiba Ltd.) and found to be 0.14 μm. A part of [fine particles dispersion 1] was dried and the resin content was isolated.

Workup

  1. customa white emulsion was obtained
  2. temperatureThis was heated until a temperature in the system
  3. customreached 75° C.
  4. customreacted for 5 hours
  5. waitaged at 75° C. for 5 hours

Sources & evidence

ORD record
ord-98e136b2a5414de5a57062fa64957e96
Source dataset
uspto-grants-2014_08
Patent number
US08795940B2

Reaction notes

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