METHOD OF COPOLYMER STYRENE-BUTYLACRYLATE DISPERSION PRODUCTION

An emulsive method of a copolymer dispersion production at low temperatures in an activator-comprising system, consisting of 0.06 - 0.2 weight parts of vitriol of iron heptahydrate and 0.12 - 0.25 weight parts of the disodium salt of ethylenediamine- -tetra acetic acid, 3.6 - 4.4 weight parts of ion...

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Bibliographic Details
Main Authors VODOVA DRAHOMIRA, SADECKA JANA, STAUDNEROVA ANNA, CITOVICKY PAVOL, TOMOVA EVA, CHRASTOVA VIERA
Format Patent
LanguageEnglish
Slovak
Published 11.01.1999
Edition6
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:An emulsive method of a copolymer dispersion production at low temperatures in an activator-comprising system, consisting of 0.06 - 0.2 weight parts of vitriol of iron heptahydrate and 0.12 - 0.25 weight parts of the disodium salt of ethylenediamine- -tetra acetic acid, 3.6 - 4.4 weight parts of ionic emulsifier, 4.3 - 6.6 weight parts non-ionic emulsifier and in the presence of a heterogeneous initiator. From 39.5 to 50 weight parts of styrene copolymerizes with 50 - 60.5 weight parts of butylacrylate simultaneously with 0.5 - 1.5 weight parts of acrylamide at a temperature of 30 - 50 degrees Celsius in the presence of water and monomers of the insoluble heterogeneous initiator represented by 5.1 to 23.5 weight parts of oxidated powdered isotactic polypropylene containing 0.14 - 0.19 weight parts of hydroperoxidic oxygen. The heterogeneous initiator is separated from the copolymer dispersion by means of a filtration after the polymerisation.
Bibliography:Application Number: SK19900006190