Title:
磁気エンコーダ
Document Type and Number:
Japanese Patent JP6864880
Kind Code:
B2
Abstract:
A magnetic rubber molded article obtained by crosslinking a magnetic rubber composition that contains an acrylic rubber (A), a magnetic powder (B), and a crosslinking agent (C), wherein the magnetic rubber composition is characterized in that the acrylic rubber (A) is a polymer including 90-99 mass% of acrylic acid ester units and 1-10 mass% of crosslinkable monomer units having a carboxyl group, the crosslinking agent (C) is a polyamine compound, and the composition includes 200-1,500 parts by mass of magnetic powder (B) and 0.2-10 parts by mass of crosslinking agent (C) per 100 parts by mass of acrylic rubber (A). A magnetic rubber molded article having exceptional mold release properties during molding and exceptional resistance to thermal aging is thereby obtained.
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Inventors:
Kazushi Sakate
Tadashi Kasamoto
Tatsuo Katayama
Tadashi Kasamoto
Tatsuo Katayama
Application Number:
JP2016552108A
Publication Date:
April 28, 2021
Filing Date:
September 30, 2015
Export Citation:
Assignee:
Uchiyama Industry Co., Ltd.
International Classes:
G01D5/245; C08K3/22; C08K5/17; C08L33/08; C08L83/04; C08L91/06
Domestic Patent References:
| JP2001115044A | ||||
| JP2011144364A | ||||
| JP2004026849A | ||||
| JP2014038036A | ||||
| JP2008169247A | ||||
| JP2010271331A |
Foreign References:
| WO2011021641A1 | ||||
| WO2006132225A1 |
Attorney, Agent or Firm:
Setouchi International Patent Firm