Selective permeable membranes comprising a polyquinazolone-based

Details Selective permeable membranes comprising a polyquinazolone-based Selective permeable membranes comprising a polyquinazolone-based

1983-06-20

1985-07-16

Anderson, Harold D.

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

Synthetic resins

Nitrogen-containing reactant

2105002, 528 27, 528172, 528208, 528210, 528211, 528229, 528321, 528327, 528331, 528337, 528341, 528391, C08G 7306

Patent

active

045297932

ABSTRACT:
A selective permeable membrane comprising a polyquinazolone-based polymer including a repeating unit represented by the formula ##STR1## wherein R.sup.1 is a tetravalent aromatic group, R.sup.2a and R.sup.2b are each independently, an alkyl group or aromatic group, and R.sup.3 is a divalent organic group.

REFERENCES:
patent: 4354017 (1982-10-01), Abe et al.

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