Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-08-09
2011-08-09
Cain, Edward (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S091000, C524S092000, C524S094000, C524S099000, C524S102000, C524S599000
Reexamination Certificate
active
07994245
ABSTRACT:
The invention relates to compounds of the structure of formula I and II:where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol — represents a single or a double bond; and R1, R2and R3are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.
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Deshpande Girish Nilkanth
Ensley Michael W.
Weipert Paul David
Ballard Spahr LLP
Cain Edward
Constar International L.L.C.
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