Perfluoropolyether primary bromides and lodides

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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C568S604000, C568S614000, C568S591000, C525S326400

Reexamination Certificate

active

07148385

ABSTRACT:
A perfluoropolyether and a composition comprising the perfluoropolyether are provided in which the perfluoropolyether comprises at least one bromine or iodine atom at the primary position of the perfluoropolyether. Also provided is a process for producing the composition in which the process comprises contacting a perfluoropolyether acid fluoride moiety with a metal bromide or metal iodide or a suitable polyether secondary iodide under a condition sufficient to effect the production of a perfluoropolyether comprising at least one bromine or iodine at the primary position.

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