Process for the manufacture of polyglycidyl ethers
    1.
    发明授权
    Process for the manufacture of polyglycidyl ethers 失效
    多羟基化合物的制备方法

    公开(公告)号:US3799950A

    公开(公告)日:1974-03-26

    申请号:US24563272

    申请日:1972-04-19

    申请人: CIBA GEIGY CORP

    发明人: MARGOTTE W RENNER A

    摘要: PROCESS FOR THE MANUFACTURE OF POLYGLYCIDYL ETHERS BY CONDENSATION OF ALIPHATIC OR CYCLOALIPHATIC POLYHYDROXY COMPOUNDS WHICH HAVE A MELTING POINT OF AT LEAST 80*C., FOR EXAMPLE PENTAERYTHRITOL, DIPENTAERYTHRITOL, SORBITOL, 2,2-BIS-(P-HYDROXYCYCLOHEXYL)-PROPANE OR 1,12-DIHYDROXYDODECANE, WITH AN EPIHALOGENOHYDRIN OR B-METHYLEPHIHALOGENOHYDRIN, FOR EXAMPLE EPICHLOHYDRIN, IN A FIRST STAGE IN THE PRESENCE OF A SOLVENT WHICH CONSISTS OF 100-30 PRECENT BY WEIGHT OF 1,4-DIOXAN AND 0-70 PERCENT BY WEIGHT OF ANOTHER ORGANIC SOLVENT WHICH HAS A BOILING POINT OF AT LEAST 70*C. AND IS NOT REACTIVE TOWARDS AN EPITHALOGENOHYDRIN, TO GIVE THE CORRESPONDING CHLORHYDRIN ETHERS AND, IN A SECOND STAGE, WITH AGENTS WHICH SPLIT OFF HYDROGEN HALIDE, TO GIVE THE CORRESPONDING POLYGLYCIDYL ETHERS.