Title:
HEAT TREATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/137376
Kind Code:
A1
Abstract:
This heat treating oil composition is obtained by blending (A) 50 to 95 mass% of a base oil which exhibits a kinematic viscosity of 5 to 60mm2/s at 40°C, (B) 5 to 50 mass% of another base oil which exhibits a kinematic viscosity of 300mm2/s or more at 40°C and (C) an α-olefin copolymer, each mass% being relative to the composition. The heat treating oil composition can reduce the dispersions of stress and hardness in group hardening.
Inventors:
NOGUCHI KENRO (JP)
KATO MASAYUKI (JP)
ICHITANI KATSUMI (JP)
KOBESSHO MASAHIRO (JP)
YAMADA MASAHIRO (JP)
TAKASAKI NORIHIRO (JP)
KATO MASAYUKI (JP)
ICHITANI KATSUMI (JP)
KOBESSHO MASAHIRO (JP)
YAMADA MASAHIRO (JP)
TAKASAKI NORIHIRO (JP)
Application Number:
PCT/JP2013/057142
Publication Date:
September 19, 2013
Filing Date:
March 14, 2013
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
NOGUCHI KENRO (JP)
KATO MASAYUKI (JP)
ICHITANI KATSUMI (JP)
KOBESSHO MASAHIRO (JP)
YAMADA MASAHIRO (JP)
TAKASAKI NORIHIRO (JP)
NOGUCHI KENRO (JP)
KATO MASAYUKI (JP)
ICHITANI KATSUMI (JP)
KOBESSHO MASAHIRO (JP)
YAMADA MASAHIRO (JP)
TAKASAKI NORIHIRO (JP)
International Classes:
C21D1/58; C10M143/00; C10M169/04; C10N20/00; C10N20/02; C10N40/20; C21D9/32
Foreign References:
| JP2002327191A | 2002-11-15 | |||
| JP3986864B2 | 2007-10-03 | |||
| JP2002038214A | 2002-02-06 | |||
| JP2001152243A | 2001-06-05 | |||
| JP4659264B2 | 2011-03-30 | |||
| JP4691405B2 | 2011-06-01 | |||
| JP2007009238A | 2007-01-18 |
Other References:
See also references of EP 2826870A4
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
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