Process for the preparation of polymeric alpha, omega-dialdehyde

Details Process for the preparation of polymeric alpha, omega-dialdehyde Process for the preparation of polymeric alpha, omega-dialdehyde

1995-12-20

1997-10-28

Lipman, Bernard

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

Synthetic resins

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

5253321, 5253328, 5253329, 5253331, 5253332, C08F 830

Patent

active

056819030

ABSTRACT:
A process for the preparation of polymeric alpha,omega-dialdehydes, diacids and mixtures thereof, which process comprises reacting a corresponding polymeric aliphatic alkanediol with a stable free radical nitroxide in the presence of a NO.sub.x -generating compound, an oxidant and, optionally, a solvent and/or a bromide-containing compound, and thereafter separating out the polymeric alpha,omega-dialdehyde and/or diacid.

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