Title:
COMPOUND FOR RARE EARTH-BONDED MAGNET, RARE EARTH-BONDED MAGNET, METHOD FOR PRODUCING RARE EARTH-BONDED MAGNET, AND RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/225885
Kind Code:
A1
Abstract:
The present disclosure provides a compound for a rare earth-bonded magnet, the compound comprising: a resin composition containing an epoxy resin (A), a phenolic resin curing agent (B), and a curing accelerator (C); and a rare earth-bonded magnet powder (D), wherein the epoxy resin (A) includes an epoxy resin having a naphthalene structure, and the curing accelerator (C) includes tetra-substituted phosphonium and tetra-substituted borate.
Inventors:
TAKEUCHI KAZUMASA (JP)
ISHIHARA CHIO (JP)
MAEDA HIDEO (JP)
ITOH TERUO (JP)
ISHIHARA CHIO (JP)
MAEDA HIDEO (JP)
ITOH TERUO (JP)
Application Number:
PCT/JP2019/018445
Publication Date:
November 12, 2020
Filing Date:
May 08, 2019
Export Citation:
Assignee:
SHOWA DENKO MATERIALS CO LTD (JP)
International Classes:
H01F1/053; B22F1/00; B22F3/00; C08G59/62; C08G59/68; C08K3/00; C08L63/00; H01F41/02
Foreign References:
| JP2013021221A | 2013-01-31 | |||
| JP2017034097A | 2017-02-09 | |||
| JP2017031295A | 2017-02-09 | |||
| JPH11312603A | 1999-11-09 | |||
| JPH08109244A | 1996-04-30 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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