METHOD OF PREPARING FILM-FORMING STYRENE OLIGOMERS

FIELD: preparing of paint coatings, more particularly preparation of film-forming styrene oligomers. SUBSTANCE: method comprises preparing film-forming styrene oligomer by bulic oligomerisation in the presence of sulfuric acid at temperature of 20-50 C. Process is carried out in the presence of 88%...

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Hauptverfasser:	OSTROVSKAJA ALINA IVANOVNA, JANKOVSKIJ NIKOLAJ ANDREEVICH, STEPANOV VALERIJ ANDREEVICH, TUGOLUKOV ALEKSANDR VLADIMIROVICH, POL'OKHA ALINA MIKHAJLOVNA, ALESHINA ANNA BORISOVNA, KRAVCHENKO BORIS VASIL'EVICH, KAZAKOVA ELENA VLADIMIROVNA
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	FIELD: preparing of paint coatings, more particularly preparation of film-forming styrene oligomers. SUBSTANCE: method comprises preparing film-forming styrene oligomer by bulic oligomerisation in the presence of sulfuric acid at temperature of 20-50 C. Process is carried out in the presence of 88% H2SO4 at monomer to acid ratio of 100:0.2. As soon as desired conversion of styrene is achieved, toluene is added to reaction mixture in amount of 10 vol %. Monomer is styrene-containing distillate resulting from production of polystyrene using incomplete monomer conversion method. EFFECT: uncolored oligomer having high degree of stability during storage period, and utilization of production waste. 8 ex, 1 tbl