PROCESS FOR PREPARING EPOXY RESIN

PROCESS FOR PREPARING EPOXY RESIN A process for preparing epoxy resin comprises a step of allowing a mixture of epichlorohydrin, 2,2-bis(p-hydro-xyphenyl)propane, and a solvent in the presence of an alkali used in an amount of from 0.4 to 5% by weight of epichlorodhydrin to stay at a temperature of...

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Hauptverfasser:	KHORKHORINA, LIDIA P, BRUSILOVSKY, MIKHAIL G, LERMAN, NAUM D, GAVRILINA, SVETLANA A, MARKEVICH, MIKHAIL A, SHOLK, SEMEN F, MAIMUR, OLEG K, KARPACHEVA, SUSANNA M, PEKARSKAYA, TATYANA A, MURATOV, VALERYAN M, PEKARSKY, VICTOR A, ILJUSHIN, ARKADY L, ENIKOLOPOV, NIKOLAI S, NEPOMNYASCHY, ANATOLY I
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	PROCESS FOR PREPARING EPOXY RESIN A process for preparing epoxy resin comprises a step of allowing a mixture of epichlorohydrin, 2,2-bis(p-hydro-xyphenyl)propane, and a solvent in the presence of an alkali used in an amount of from 0.4 to 5% by weight of epichlorodhydrin to stay at a temperature of from 45 to 70.degree.C to obtain a homogeneous mass. Subsequently an alkali used in an amount of from 45 to 50% by weight of epichlorohydrin is added to the resultant mass, and polycondensation is conducted at a temperature of 70 to 90.degree.C under stirring to obtain the end product. The invention will find application in the manufacture of synthetic resins and products based thereon.