Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From ketone or ketene reactant
Reexamination Certificate
2006-03-21
2006-03-21
Morris, Terrel (Department: 1771)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From ketone or ketene reactant
C524S106000, C524S115000, C524S122000, C524S154000, C524S177000, C524S236000, C524S368000, C524S392000, C524S400000, C524S401000, C528S220000, C528S392000, C528S488000, C528S491000
Reexamination Certificate
active
07015303
ABSTRACT:
A solution of a polyketone as a copolymer of carbon monoxide and one or more olefins, wherein 90 wt % or more of said copolymer comprises carbon monoxide units and olefin units, and a solvent is an aqueous solution of at least one member selected from the group consisting of zinc salts, calcium salts, thiocyanates and iron salts.
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Fujieda Kiyoshi
Kato Jinichiro
Morita Toru
Asahi Kasei Kabushiki Kaisha
Chang Victor S.
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Morris Terrel
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