Title:
射出成形用組成物およびその製造方法
Document Type and Number:
Japanese Patent JP5534240
Kind Code:
B2
Abstract:
An injection molding composition, having a small fluctuation characteristic and a better characteristic, is provided. The above composition is the injection molding composition comprising a ferrite powder which is a collection of ferrite particles, a first binder and a second binder. A weight and a specific surface area of the ferrite powders are represented by Wp and S, and a weight and a density of the first binder and the second binder is represented by Wb1, Wb2, and Db1, Db2. A hypothetical thickness Tb1 of the first binder is 2.0 to 15.0, and a hypothetical thickness Tb2 of the second binder is 16.5 to 32.0. In the composition, it is preferable that coated ferrite particles coating the outer circumference of the ferrite particles with the first binder and the second binder exist. Tb1 [nm]=(Wb1×103)/(Db1×Wp×S) formula (1) Tb2 [nm]=(Wb2×103)/(Db2×Wp×S) formula (2)
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Inventors:
Naoto Tsukamoto
Tomohiko Aida
Shinichi Sakano
Yoshihiko Minachi
Masashi Goto
Nanaro Himeno
Tomohiko Aida
Shinichi Sakano
Yoshihiko Minachi
Masashi Goto
Nanaro Himeno
Application Number:
JP2011209800A
Publication Date:
June 25, 2014
Filing Date:
September 26, 2011
Export Citation:
Assignee:
tdk Corporation
International Classes:
C04B35/00; B28B1/24; C04B35/26; C04B35/632
Domestic Patent References:
| JP2013014463A | ||||
| JP6020858A |
Foreign References:
| WO2013005476A1 | ||||
| WO2011115128A1 | ||||
| WO2011115129A1 |
Attorney, Agent or Firm:
Maeda/Suzuki International Patent Corporation
Hitoshi Maeda
Toru Suzuki
Hitoshi Maeda
Toru Suzuki