Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2006-10-31
2006-10-31
Boykin, Terressa (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C526S067000, C526S068000, C528S176000, C528S271000
Reexamination Certificate
active
07129316
ABSTRACT:
An improved process for recycling unspent diol removed from a polyester manufacturing process wherein the diol is captured, hydrogenated, and recycled so that the final polyester product has improved color over polyesters produced using other recycled diols.
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Coote Alexander Stuart
Hamilton Clive Alexander
McDonnell Finbar Gerald
Boykin Terressa
Invista North America S.A R.L.
Krukiel Charles E.
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