PRODUCTION OF BISPHENOL S ALKYLENE OXIDE ADDUCT AND COMPOSITION

PURPOSE:To obtain a bisphenol S alkylene oxide adduct having low contents of unreacted material and subsidiary components and containing a 2mol ethylene oxide adduct having high purity. CONSTITUTION:A bisphenol S ethylene oxide adduct is produced by reacting ethylene oxide with bisphenol S in an aqu...

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Bibliographic Details
Main Authors ITO RYUICHI, KAWATO YOSHIYUKI, SUMITA TAKESHI
Format Patent
LanguageEnglish
Published 07.08.1992
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Summary:PURPOSE:To obtain a bisphenol S alkylene oxide adduct having low contents of unreacted material and subsidiary components and containing a 2mol ethylene oxide adduct having high purity. CONSTITUTION:A bisphenol S ethylene oxide adduct is produced by reacting ethylene oxide with bisphenol S in an aqueous medium in the presence of a catalyst consisting of a neutral alkali metal salt (e.g. calcium chloride) or an organic acid potassium salt (e.g. potassium lactate).
Bibliography:Application Number: JP19910044415