Gas separating membrane having a polycarbodiimide resin layer

Details Gas separating membrane having a polycarbodiimide resin layer Gas separating membrane having a polycarbodiimide resin layer

1998-08-18

2000-04-18

Hampton-Hightower, P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528170, 528220, 528229, 528322, 528353, 4284111, 4284735, 21050021, 21050027, 21050039, C08G 7310, B01D 3900

Patent

active

060516771

ABSTRACT:
Disclosed is a gas separating membrane comprising a layer made of a polycarbodiimide resin having repeating units represented by formula (I): ##STR1## wherein R represents a divalent organic group. The gas separating membrane available according to the present invention has high permeability and separation selectivity as well as excellent permeating performance, and further has excellent heat resistance, chemical resistance and durability.

REFERENCES:
patent: 4806189 (1989-02-01), Kraus et al.
patent: 5859170 (1999-01-01), Sakamoto et al.
Journal of Applied Polymer Science, vol. 21, 1977, pp. 1999-2008, "Preparation and Properties of Polycarbodiimides", L. M. Alberino et al.
Stanford Research Institute, Apr. 1963, pp. 1-9, "Polycarbodiimides and their Derivatives", Donald J. Lyman et al.

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