Process for the preparation of perfluoropolyethers having...

Details Process for the preparation of perfluoropolyethers having... Process for the preparation of perfluoropolyethers having...

2006-01-10

2006-01-10

Keys, Rosalynd (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C564S490000, C564S491000, C564S505000, C564S463000, C564S474000, C564S483000, C568S484000, C568S485000, C568S488000, C568S489000, C568S490000, C568S589000, C568S615000

Reexamination Certificate

active

06984759

ABSTRACT:
Process for the perfluoropolyether preparation having reactive end groups —CH2NH2, —CHO, —CH2OH, by reduction of the corresponding perfluoropolyethers having —CN, —COCl, —CHO end groups by using gaseous hydrogen in the presence of a catalyst constituted by Pd, Rh, or Ru, supported on solid metal fluorides, at a temperature from 20° C. to 150° C. and under a pressure between 1 and 50 atm.

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patent: WO 98/37043 (1998-08-01), None
O.R. Pierce, T. G. Cane, J. Am. Chem. Soc. 76, 300 (1954).

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