L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Junyi Liu

Sudhir S Kulkarni

Megha Sharma

Composite hollow fiber gas separation membranes with improved permeance and separation layer adhesion are manufactured by providing dipping a hollow fiber membrane substrate in a pre-coat layer coating composition followed by drying to thereby provide a pre-coated substrate and dipping the pre-coated substrate in a separation layer coating composition followed by drying to thereby provide the composite hollow fiber gas separation membranes. The pre-coating composition includes a first polymer dissolved in a first solvent and the separation layer composition includes a second polymer dissolved in a second solvent. The first and second polymers are the same or different, each of the first and second polymers is at least 1 wt % soluble in a same third solvent, the first and second solvents are the same or different, the first and third solvents are the same or different, and the second and third solvent are the same or different.

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Newark, DE, United States of America

Junyi Liu