Title:
PLASTIC-CERAMIC COMPOSITE MATERIAL
Document Type and Number:
WIPO Patent Application WO/1999/016813
Kind Code:
A1
Abstract:
Plastic-ceramic composite material comprising ceramic particles dispersed in a matrix of a plastic. The ceramic to be used is either one which has one function selected from the group consisting of dielectric properties, piezoelectric properties, magnetic properties, electric conductivity, and thermal conductivity, or a combination of two or more dissimilar ceramics corresponding to two or more dissimilar functions. One embodiment of the composite material has a content of the ceramic particles of 50 to 99 % by volume. Another embodiment thereof comprises the plastic which has at least one function selected from the group consisting of dielectric properties, piezoelectric properties, and magnetic properties and the ceramic which has at least one function selected from the group consisting of dielectric properties, piezoelectric properties, magnetic properties, electric conductivity, and thermal conductivity, and has a content of the ceramic particles of 30 to 99 % by volume. The composite material can be easily prepared by injection molding at low cost, permits improving the productivity, and can be easily molded into complicate forms which cannot be realized by mechanical working. It has characteristics of ceramics, has two or more different functions, and permits the characteristic values to be freely controlled.
Inventors:
OTAGIRI TADASHI (JP)
SUZUKI TOMIO (JP)
SUZUKI TOMIO (JP)
Application Number:
PCT/JP1998/004321
Publication Date:
April 08, 1999
Filing Date:
September 28, 1998
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
OTAGIRI TADASHI (JP)
SUZUKI TOMIO (JP)
OTAGIRI TADASHI (JP)
SUZUKI TOMIO (JP)
International Classes:
C08K3/34; H01L41/18; (IPC1-7): C08J3/20; C08J5/18; B32B18/00; B32B27/20
Foreign References:
| JPH03290469A | 1991-12-20 | |||
| JPH0532801A | 1993-02-09 | |||
| JPH01260896A | 1989-10-18 | |||
| JPH07199699A | 1995-08-04 | |||
| JPH0528631U | 1993-04-16 |
Other References:
See also references of EP 1020487A4
Attorney, Agent or Firm:
Watanabe, Kazuhira (Asakusabashi 3-chome Taito-ku Tokyo, JP)
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