Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methacrylic Acid | HCID 4093 | — |
| Reactant | Ethylene Oxide | HCID 6354 | — |
| Reactant | Styrene | HCID 7501 | — |
| Reactant | Ammonium Persulfate | HCID 62648 | — |
| Reactant | Sodium | HCID 5360545 | — |
| Solvent | Water | HCID 962 | — |
| Product | Methacrylic Acid | HCID 4093 | — |
| Product | Ethylene Oxide | HCID 6354 | — |
| Product | Styrene-methacrylic acid sodium | HCID 86592924 | — |
Reaction Steps
A reactor equipped with a stirring rod and a thermometer was charged with 683 parts of water, 11 parts of sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid (ELEMINOL RS-30, manufactured by Sanyo Chemical Industries, Ltd.), 138 parts of styrene, 138 parts of methacrylic acid, and 1 part of ammonium persulfate. It was stirred at 400 rpm for 15 minutes, and white emulsion was obtained. It was heated such that a temperature in the system reached to 75° C. and was reacted for 5 hours. Further, after adding 30 parts of a 1-% aqueous solution of ammonium persulfate, it was aged at 75° C. for 5 hours, and [Fine Particles Dispersion 1] as an aqueous dispersion of a vinyl resin (a copolymer of styrene-methacrylic acid-sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid) was obtained. A volume-average particle diameter of [Fine Particles Dispersion 1] measured by LA-920 was 0.14 μm. A part of [Fine Particles Dispersion 1] was dried, and a resin component was isolated.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US09274445B2 |
|---|
| Source dataset | uspto-grants-2016_03 |
|---|
| ORD ID | ord-9609d16fff0b438fbdc81fd4c20140c0 |
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| Source note | uspto-grants-2016_03 |
|---|
