HYDROPHILIC SEPARATION MEMBRANE

PURPOSE:To provide a hydrophilic separation membrane excellent in water holding property which is effective for concentrating, separating and refining means. CONSTITUTION:A hydrophilic separation membrane having an asymmetric structure or a three-dimensional net-like structure is obtd. from a mixtur...

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Bibliographic Details
Main Authors HARADA YOSHIYUKI, TERAMOTO TAKEO
Format Patent
LanguageEnglish
Published 14.01.1993
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:PURPOSE:To provide a hydrophilic separation membrane excellent in water holding property which is effective for concentrating, separating and refining means. CONSTITUTION:A hydrophilic separation membrane having an asymmetric structure or a three-dimensional net-like structure is obtd. from a mixture of sulfonated polysulfone having 9,9-bis(phenyl)fluorene as a skelton and a resin having 9,9-bis(phenyl)fluorene skelton but no ionic group. Thereby, since the membrane consists of the mixture of the resin having heat resistant ion exchange group and the resin having no ionic group, it has heat resistance against high-pressure steam sterilization, hydrophilicity, and water holding effect.
Bibliography:Application Number: JP19910181537