Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Reexamination Certificate
2006-09-05
2006-09-05
Gorr, Rachel (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
C525S440030, C525S460000, C524S872000
Reexamination Certificate
active
07101950
ABSTRACT:
The invention is an composition comprisinga) one or more isocyanate functional polyether based prepolymers;b) one or more isocyanate functional polyester prepolymers wherein the one or more polyesters used to prepare the prepolymers having melting points of from about 45 to about 59° C.;c) one or more polyisocyanates having a nominal functionality of about 3 or greater;d) one or more nonconductive carbon blacks;e) one or more catalysts for the reaction of isocyanates moieties with hydroxyl groups. In a preferred embodiment the composition of the invention further comprises one or more isocyanate functional polyester prepolymers wherein the one or more polyesters used to prepare the prepolymers having melting points of about 60 to about 90° C.
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Heberer Daniel P.
Zhou Lirong
Dow Global Technologies Inc.
Gorr Rachel
Sims Norman L.
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