Methacrylic Acid → Methacrylic Acid

HRID 1827735

Reaktionsgleichung

Reaktionsgleichung von HRID 1827735
[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:19]([O:23][CH2:24][CH2:25][CH2:26][CH3:27])(=[O:22])[CH:20]=[CH2:21].C(OCCCC)(=O)CS.S(OOS([O-])(=O)=O)([O-])(=O)=O.[NH4+].[NH4+].S([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.[C:19]([O:23][CH2:24][CH2:25][CH2:26][CH3:27])(=[O:22])[CH:20]=[CH2:21].[Na:1].[CH2:3]1[O:4][CH2:2]1.[C:5]([OH:10])(=[O:9])[C:6]([CH3:8])=[CH2:7]

Komponenten

12

Edukt 8

HCID 4093Methacrylic Acid2×HCID 6354Ethylene OxideHCID 7501StyreneHCID 8846Butyl AcrylateHCID 62648Ammonium PersulfateHCID 82321Butyl ThioglycolateHCID 5360545SodiumHCID 6097028Ammonium Sulfate

Produkt 3

HCID 4093Methacrylic AcidHCID 6354Ethylene OxideHCID 86591398Styrene-methacrylic acid butyl acrylate sodium

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
75 °C

Versuchsvorschrift

In a reactor equipped with a stirring rod and a thermometer were placed 683 parts of water, 11 parts of a sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid ELEMINOL RS-30 (trade name, available from Sanyo Chemical Industries, Ltd., Japan), 103 parts of styrene, 83 parts of methacrylic acid, 90 parts of butyl acrylate, 12 parts of butyl thioglycolate and 1 part of ammonium persulfate, and the mixture was stirred at 400 rpm for 15 minutes to yield a white emulsion. The emulsion was heated to an inner temperature of 75° C., followed by reaction for 5 hours. The reaction mixture was further treated with 30 parts of a 1% aqueous solution of ammonium sulfate, was aged at 75° C. for 5 hours and thereby yielded an aqueous dispersion [Fine Particle Dispersion 3] of a vinyl resin (a copolymer of styrene-methacrylic acid-butyl acrylate-sodium salt of sulfuric acid ester of ethylene oxide adduct of methacrylic acid). Fine Particle Dispersion 3 had a volume-average particle diameter of 110 nm when measured with a laser diffraction-scattering size distribution analyzer LA-920. Part of Fine Particle Dispersion 3 was dried to isolate the resin component. The resin component had a Tg of 78° C. and a weight-average molecular weight of 2.5×104.

Aufarbeitung

  1. customIn a reactor equipped with a stirring rod
  2. customto yield a white emulsion
  3. customfollowed by reaction for 5 hours

Quellen und Nachweise

ORD-Eintrag
ord-7efb577dcd3b45a0a96b17488099a4f3
Quelldatensatz
uspto-grants-2006_06
Patentnummer
US07056636B2

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