Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2005-05-19
2009-06-02
Boykin, Terressa M (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
C524S100000, C524S115000, C524S166000, C524S431000, C524S442000, C528S025000, C528S031000, C528S198000
Reexamination Certificate
active
07541419
ABSTRACT:
A branched polycarbonate resin prepared from a divalent phenol, a carbonate precursor, a branching agent, and a chain terminating agent is provided, in which the branching agent is composed of a trisphenol compound represented by the general formula (I). The use of the branching agent brings about excellent washability and permits molding which barely suffers from sagging (blow down) of the melt or stringiness thereof and is accompanied with high melt tension and excellent moldability, thus enabling efficient production of good molded products at high productivity.
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U.S. Appl. No. 11/547,280, filed Oct. 4, 2006, Ishikawa.
Boykin Terressa M
Idemitsu Kosan Co. Ltd.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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