Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2008-05-20
2008-05-20
Mulcahy, Peter D. (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S425000, C524S430000, C524S433000
Reexamination Certificate
active
07375155
ABSTRACT:
According to the present invention, there is provided a low dielectric loss tangent resin composition containing a crosslinking component having a weight average molecular weight of not more than 1,000 and a plurality of styrene groups and represented by the formula [1],wherein R is a hydrocarbon skeleton which may have a substituent, R1is hydrogen, methyl or ethyl, m is an integer of 1-4 and n is an integer of 2 or more, and further containing at least one member selected from a high polymer having a weight average molecular weight of not less than 5,000 and a filler, which resin composition can give a cured product having a good flexibility, high tensile strength and low dielectric constant and dielectric loss tangent.
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Amou Satoru
Ishikawa Takao
Miwa Takao
Yamada Shinji
Dickstein & Shapiro LLP
Hitachi , Ltd.
Hu Henry S.
Mulcahy Peter D.
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