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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 420423Generated: October 25, 2026

Methacrylic Acid → Methacrylic Acid

https://huagongshe.com/reaction/420423

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethacrylic AcidHCID 4093—
ReactantEthylene OxideHCID 6354—
ReactantStyreneHCID 7501—
ReactantButyl AcrylateHCID 8846—
ReactantAmmonium PersulfateHCID 62648—
ReactantSodiumHCID 5360545—
SolventWaterHCID 962—
ProductMethacrylic AcidHCID 4093—
ProductEthylene OxideHCID 6354—
ProductStyrene-methacrylic acid butyl acrylate sodiumHCID 86591398—

Reaction Conditions

Temperature75 °C

Reaction Steps

First, 683 parts of water, 11 parts of sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid (Eleminol RS-30 by Sanyo Chemical Industries, Ltd.), 83 parts of styrene, 83 parts of methacrylic acid, 110 parts of butyl acrylate, and 1 part of ammonium persulfate were put in a reaction vessel equipped with a stirrer and a thermometer, and stirred at 400 rpm for 15 minutes to obtain a white emulsion. The emulsion was heated to a temperature within the system of 75° C. and reacted for 5 hours. Next, 30 parts of 1% water solution of ammonium persulfate was added and matured at 75° C. for 5 hours to obtain an aqueous dispersion liquid of vinyl resin particles (a copolymer of styrene-methacrylic acid-butyl acrylate-sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid). This was defined as [Fine Particle Dispersion Liquid 1].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08097393B2
Source datasetuspto-grants-2012_01
ORD IDord-5afbe1a023154db5a0651082b816f2da
Source noteuspto-grants-2012_01