Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2003-09-29
2010-10-19
Sellers, Robert (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S400000, C523S453000, C523S454000, C523S455000, C523S462000, C525S396000
Reexamination Certificate
active
07816430
ABSTRACT:
The present invention provides a resin composition for printed wiring board to be used for electronic devices in which operating frequency exceeds 1 GHz, and a varnish, a prepreg and a metal clad laminated board using the same. One invention of the present invention is a resin composition for printed wiring board containing a cyanate ester compound having 2 or more cyanate groups in the molecule and/or a prepolymer thereof, an epoxy resin containing at least one kind of an epoxy resin having a biphenyl structure in the molecule, and a varnish, a prepreg and a metal clad laminated board using the same.
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Fujimoto Daisuke
Kobayashi Kazuhito
Mizuno Yasuyuki
Shimizu Hiroshi
Sueyoshi Takayuki
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Chemical Company Ltd.
Sellers Robert
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