Process for modifying polybenzimidazole polymers with ethylene c

Details Process for modifying polybenzimidazole polymers with ethylene c Process for modifying polybenzimidazole polymers with ethylene c

1985-01-16

1986-07-08

Lilling, Herbert J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528341, 528342, 528361, C08G 6926, C08G 6928, C08G 7318, C08L 6900

Patent

active

045993882

ABSTRACT:
This invention provides a process for modifying a polybenzimidazole polymer which involves employing ethylene carbonate as a hydroxyethylating agent to introduce 2-hydroxyethyl substituents at active imidazole hydrogen sites in the polymer. The polymer product exhibits improved hydrophilicity.

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