Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate
2006-02-13
2010-02-16
Eashoo, Mark (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
C528S125000, C528S172000, C528S173000, C528S174000
Reexamination Certificate
active
07662904
ABSTRACT:
The present invention relates to aromatic polyether resins crosslinked with amic acid or imide side chain, and more particularly, to the aromatic polyether resin crosslinked by amic acid or imide side chain, which is produced by heat curing of amic acid, wherein introduction of imide groups to the basic backbone provides excellent chemical resistance as well as heat resistance and improves surface roughness when coated as a thin film so that it can be suitable for films and flexible display plate substrate.
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Kim Yong Seok
Lee Eun Sang
Lee Jae Heung
Won Jong Chan
Eashoo Mark
Frommer & Lawrence & Haug LLP
Heincer Liam J
Korea Research Institute of Chemical Technology
Santucci Ronald R.
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