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Title:
LIQUID-CRYSTALLINE RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2008/001708
Kind Code:
A1
Abstract:
A liquid-crystalline resin composition which is reduced in conductivity unevenness in regions ranging from a semiconductive region to a highly conductive region, has high flowability, and gives a molded article having an excellent appearance; a liquid-crystalline resin masterbatch; and a molded liquid-crystalline resin formed from the composition. The liquid-crystalline resin composition comprises: 100 parts by weight of a liquid-crystalline resin (A) having (a1) a melting point of 250-350°C and (a2) a melt viscosity, as measured at a temperature higher by 20°C than the melting point and at a shear rate of 1,000 sec-1, of 1-80 Pa•s; and 0.5-40 parts by weight of vapor-grown carbon fibers (B) having an outer fiber diameter of 10-500 nm and an aspect ratio of 5-1,000. This liquid-crystalline resin composition can be formulated into, e.g., a masterbatch and mixed with other thermoplastic resin (C) according to need to obtain a molded article therefrom. In this case, by selecting the resin (C) so that the melt viscosities of the two resins are close to each other, a molded article excellent in dispersion and conductivity is obtained.

Inventors:
TAGUCHI YOSHIAKI (JP)
SHIWAKU TOSHIO (JP)
MORITA TOSHIO (JP)
NAGAO YUJI (JP)
ARAI TOSHIHIRO (JP)
YONETAKE KOICHIRO (JP)
TAKAHASHI TATSUHIRO (JP)
YASUDA TAKESHI (JP)
Application Number:
JP2007/062668
Publication Date:
January 03, 2008
Filing Date:
June 25, 2007
Export Citation:
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Assignee:
POLYPLASTICS CO (JP)
SHOWA DENKO KK (JP)
TAGUCHI YOSHIAKI (JP)
SHIWAKU TOSHIO (JP)
MORITA TOSHIO (JP)
NAGAO YUJI (JP)
ARAI TOSHIHIRO (JP)
YONETAKE KOICHIRO (JP)
TAKAHASHI TATSUHIRO (JP)
YASUDA TAKESHI (JP)
International Classes:
C08L101/12; C08J3/22; C08J5/00; C08K7/06; H01B1/24
Foreign References:
JP2005187658A2005-07-14
JPS5477691A1979-06-21
JP2005264134A2005-09-29
JP2006097005A2006-04-13
JP2006097006A2006-04-13
JP2005187696A2005-07-14
JP2001089581A2001-04-03
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (25-8 Higashi-ikebukuro 1-chom, Toshima-ku Tokyo, JP)
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