Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2007-03-13
2007-03-13
Boykin, Terressa (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C428S034900, C428S035700, C428S364000, C524S706000, C524S710000, C524S711000, C524S713000, C528S279000, C528S286000, C528S287000, C528S302000, C528S308000, C528S308600
Reexamination Certificate
active
10488946
ABSTRACT:
A poly(ethylene aromatic dicarboxylate ester) resin usable for the production of fibers, films and bottle-formed articles, is produced by polycondensing a diester of an aromatic dicarboxylic acid with ethylene glycol by using a catalyst including a non-reacted mixture or reaction product of a titanium compound component including at least one member selected from titanium alkoxides and reaction products of the titanium alkoxides with aromatic polyvalent carboxylic acids or anhydrides thereof, with a specific phosphorus compound, in which catalyst the contents of titanium and phosphorus elements are controlled.
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Ishihara Kenichi
Kishino Tomoyuki
Minobe Nobuo
Tsukamoto Ryoji
Yamamoto Tomoyoshi
Boykin Terressa
Sughrue & Mion, PLLC
Teijin Limited
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