Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2006-12-12
2006-12-12
Price, Elvis O. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
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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Friesen Chadron Mark
Howell Jon L.
Nowak Ireneusz
Perez Erik W.
Thrasher Joseph Stuart
E. I. du Pont de Nemours and Company
Price Elvis O.
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