Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2006-04-11
2006-04-11
Acquah, Samuel A. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S308600, C528S491000, C528S493000, C528S497000, C528S501000, C526S067000, C526S068000, C526S069000, C526S070000, C526S089000, C526S206000, C526S208000, C526S318200, C524S732000, C524S768000, C524S770000
Reexamination Certificate
active
07026433
ABSTRACT:
A continuous process for the process for the enzyme-catalyzed preparation of cyclic ester oligomers from linear ester oligomers. The process may use a linear or recirculating reactor.
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Brugel Edward G.
DiCosimo Robert
E. I. du Pont de Nemours and Company
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