Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Reexamination Certificate
2006-07-18
2006-07-18
Feely, Michael J. (Department: 1712)
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
C525S088000, C525S090000, C525S091000, C525S094000, C525S107000, C525S418000, C525S452000, C525S523000, C525S528000, C525S529000, C525S530000, C525S533000
Reexamination Certificate
active
07078106
ABSTRACT:
A thermosetting resin composition comprising: (1) a copolymer resin comprising (a) a monomer unit and (b) a monomer unit respectively represented by the following general formulae (I) and (II):wherein R1represents hydrogen, a halogen, or a C1–C5hydrocarbon group; R2represents a halogen or a C1–C5hydrocarbon group; x is0to3;and each of m and n is a natural number; and (2) a cyanate resin having at least two cyanate groups per molecule; is used to provide a printed wiring board material and a printed wiring board for electronic appliances, having a low dielectric constant and a low dielectric dissipation factor as well as improved heat resistance.
REFERENCES:
patent: 4780507 (1988-10-01), Gaku et al.
patent: 5091476 (1992-02-01), Monnerat
patent: 6387990 (2002-05-01), Yeager
patent: 6509414 (2003-01-01), Tikart et al.
patent: 6667107 (2003-12-01), Tsuchikawa et al.
European Search Report for EP 02 00 1902, (Jun. 2002).
Fujimoto Daisuke
Kobayashi Kazuhito
Mizuno Yasuyuki
Takano Nozomu
Tsuchikawa Shinji
Antonelli, Terry Stout and Kraus, LLP.
Feely Michael J.
Hitachi Chemical Co., LTD
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