Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Reexamination Certificate
2007-04-03
2010-11-09
Feely, Michael J (Department: 1796)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
C428S323000, C428S332000, C428S413000, C523S440000, C523S443000, C523S466000
Reexamination Certificate
active
07829188
ABSTRACT:
Epoxy compositions exhibiting low viscosity in the uncured state and low coefficient of thermal expansion in the cured state are provided. Also provided are processes for making the epoxy compositions. The low dielectric constant compositions are well-suited for use in multi-layer printed circuit boards. The desired properties are achieved by employment of a bimodal distribution of nano-scale fillers in the epoxy compositions.
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Lin Pui-Yan
Rajendran Govindasamy Paramasivam
Zahr George Elias
E.I. du Pont de Nemours and Company
Feely Michael J
Tanzer Gail D.
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