Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2011-08-16
2011-08-16
Boykin, Terressa M (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
C528S176000, C528S219000, C528S271000, C528S272000
Reexamination Certificate
active
07999058
ABSTRACT:
A method for producing an aromatic polymer includes polycondensing an aromatic compound represented by formula (I) in the presence of a nickel complex containing a phosphine compound represented by formula (II),wherein, Ar denotes an aromatic ring containing organic group, which aromatic ring may contain an oxygen atom and/or a nitrogen atom; R denotes a monovalent group containing a hydrocarbon group; k is an integer of 1 or more; X denotes an halogen atom, a nitro group or a group represented by —SO3Q, wherein Q denotes a monovalent hydrocarbon group; Y denotes O, S, an imino group, an ethenylene group, or an ethynylene group; n denotes 0 or 1; and M denotes H, —B(OQ1)2, —Si(Q2)3, —Sn(Q3)3or —Z1(Z2)m, wherein Q1denotes H or a monovalent hydrocarbon group; Q2and Q3denote a monovalent hydrocarbon group; Z1denotes a metal atom or a metal ion; Z2denotes a counter ion; and m is an integer of 0 or higher;wherein, R1denotes a monovalent hydrocarbon group, and R2denotes a divalent hydrocarbon group.
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Higashimura Hideyuki
Yokozawa Tsutomu
Boykin Terressa M
Sughrue & Mion, PLLC
Sumitomo Chemical Company Limited
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