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Title:
MOLDING MATERIAL FOR TETRAFLUOROETHYLENE RESIN EXCELLENT IN HIGH-FREQUENCY ELECTRIC PROPERTY
Document Type and Number:
Japanese Patent JP2002047315
Kind Code:
A
Abstract:

To provide a molding material for a fluororesin that has an excellent electrical properties especially dielectric dissipation factor even in a microwave range, can mold at a lower pressure because of a low molecular weight polymer, is excellent in surface smoothness, and is useful as a material e.g. coating material such as a coaxial cable for equipment using microwave in a satellite communication or a mobile phone base station or the like.

The molding material for a tetrafluoroethylene resin excellent in high-frequency electric properties provides a resin that has ≤2.2 of permittivity at 12 GHz, ≤1.60×10-4 of a dielectric dissipation factor and ≥2.192 and <2.3 of standard specific gravity. For the tetrafluoroethylene resin, a homopolymer of tetrafluoroethylene or a copolymer composed of tetrafluoroethylene of 99.9-99.9999 mol% and a specified fluoromonomer of 0.0001-0.1 mol% is desirably used.


Inventors:
ONO SHINSEI
ASANO MICHIO
NANBA YOSHINORI
KASAI SHUNJI
YOSHIMOTO HIROYUKI
YANO SHINICHI
SHIMIZU TETSUO
Application Number:
JP2000236095A
Publication Date:
February 12, 2002
Filing Date:
August 03, 2000
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
C08J3/16; B29C67/04; C08F14/26; C08F259/08; C08J5/00; C08L27/18; C09D127/18; H01B3/44; H01B11/18; (IPC1-7): C08F14/26; B29C67/04; C08J3/16; C08J5/00; H01B3/44; H01B11/18
Domestic Patent References:
JPS6356532A1988-03-11
JPS374643B11962-06-15
JPH1053624A1998-02-24
JPH02220389A1990-09-03
JPH11185533A1999-07-09
JPH03184209A1991-08-12
JPH07272801A1995-10-20
Attorney, Agent or Firm:
Sota Asahina (1 person outside)