Membranfiltermaterial mit hervorragender Beständigkeit gegen organische Lösungsmittel, Verfahren zur Herstellung des Membranfilters und Verfahren zur Herstellung von Bismaleimidpolymer zur Verwendung als Membranfilter

A bismaleimide polymer, useful as a membrane filter material, is formed by polymerising a bismaleimide compound with a perhydrodiaza-type heterocyclic compound and has a main structural skeleton represented by the following formula: wherein R1, R2, R3 and R4 represent a lower carbon chain which is l...

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Main Authors WATANABE, MASANOBU, ICHIHARA-SHI CHIBA-KEN, JP, YAMASAKI, KAZUYUKI, CHIBA-SHI, JP, NAKAYAMA, YOSHIO, ICHIHARA-SHI CHIBA-KEN, JP, YAMAMOTO, KIMIO, ICHIHARA-SHI CHIBA-KEN, JP, KAN, KOJIRO, ICHIHARA-SHI CHIBA-KEN, JP
Format Patent
LanguageGerman
Published 21.09.1995
Edition6
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
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Summary:A bismaleimide polymer, useful as a membrane filter material, is formed by polymerising a bismaleimide compound with a perhydrodiaza-type heterocyclic compound and has a main structural skeleton represented by the following formula: wherein R1, R2, R3 and R4 represent a lower carbon chain which is linear or contains a methyl group or ethyl group on the side chain, R5 represents a divalent group containing an aromatic ring, Y is >R< or >N-R-N< in which R is a lower carbon chain, and m is 0 or 1. This membrane filter material has excellent organic solvent resistance and when formed into a hollow fiber or plain film has a high separating and filtering capacity and an excellent organic resistance.
Bibliography:Application Number: DE19896022802T