GAS SEPARATION MEMBRANE

Disclosed is a gas separation membrane, comprising a film with a thickness ranging from 0.05.10-6 to 20.10-6 m, at least 90% by mole of which is at least one aromatic polyimide or copolyimide, the recurrent unit of which corresponds to the following formula (I): (I) where A represents a tetravalent...

Full description

Saved in:
Bibliographic Details
Main Authors DESCHAMPS; ANDRE, ROBERT; ERIC, DRIANCOURT; ALAIN, MILEO; JEAN-CLAUDE, AVRILLON; RENE
Format Patent
LanguageEnglish
Published 10.12.1991
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
Online AccessGet full text

Cover

More Information
Summary:Disclosed is a gas separation membrane, comprising a film with a thickness ranging from 0.05.10-6 to 20.10-6 m, at least 90% by mole of which is at least one aromatic polyimide or copolyimide, the recurrent unit of which corresponds to the following formula (I): (I) where A represents a tetravalent aromatic radical at least 50% by mole of which are represented by the following formula (II): (II) and B represents a bivalent aromatic radical or a mixture of bivalent aromatic radicals.
Bibliography:Application Number: US19900565845