Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2003-06-19
2010-06-15
Sample, David R (Department: 1794)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C428S035700, C428S036600, C428S474400, C428S220000, C428S421000, C524S445000, C524S430000, C524S494000
Reexamination Certificate
active
07737198
ABSTRACT:
A molded product of a wholly aromatic liquid crystal polyester resin composition having a dielectric constant of 3.0 or less and a dielectric dissipation factor of 0.04 or less and is obtained by an injection molding of a composition comprising 90 to 45 percent by weight of the wholly aromatic liquid crystal polyester having a melting point of 320C or more, 10 to 40 percent by weight of an inorganic spherical hollow material having an aspect ratio of 2 or less, and 0 to 15 percent by weight of an inorganic filler having an aspect ratio of 4 or more. The molded product has dielectric properties suitable for information and telecommunications equipment, and is excellent in solder heat resistance, processability, and dimensional stability. The molded product is advantageous as a substrate material for use in information and telecommunications equipment such as a cellular mobile phone and as a fixing/holding member of a transmitter-receiver element.
REFERENCES:
patent: 5348990 (1994-09-01), Walpita et al.
patent: 5767223 (1998-06-01), Yamada et al.
patent: 5837366 (1998-11-01), Tanaka
patent: 2001/0012862 (2001-08-01), Maeda
patent: 2007/0173565 (2007-07-01), Murouchi et al.
Vectra LCP, Tincona Enigineering Polymers, http://www.tincona.com.br/home/portfolio/vectra.htm. Jan. 26, 2009.
Murouchi Satoshi
Nakayama Toshio
Yamada Yoshikuni
Nelson Michael B
Nippon Oil Corporation
Sample David R
Weingarten Schurgin, Gagnebin & Lebovici LLP
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