SEMIPERMEABLE MEMBRANE BASED ON SPECIFIED 4,4'-(1H-ALKYLIDENE)BIS£2,3,6-TRIALKYLPHENAL TYPE POLYESTERS

Permeable membranes comprised predominantly of specifically defined polyester of 4,4 min -(1H-alkylidene) bis[2,3,6-trialkylphenol] and aromatic dicarboxylic acids. The invention also pertains to the novel permeation processes for recovery of an oxygen/nitrogen or carbon dioxide/methane or helium/me...

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Bibliographic Details
Main Authors MURUGANANDAM, NATARAJAN, KAWAKAMI, JAMES H, BROAD, GEORGE R
Format Patent
LanguageEnglish
Korean
Published 27.04.1995
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC CHEMISTRY
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:Permeable membranes comprised predominantly of specifically defined polyester of 4,4 min -(1H-alkylidene) bis[2,3,6-trialkylphenol] and aromatic dicarboxylic acids. The invention also pertains to the novel permeation processes for recovery of an oxygen/nitrogen or carbon dioxide/methane or helium/methane component from a mixture of said component with other components in the mixture.
Bibliography:Application Number: KR19890019848