Title:
MINERAL OIL, AND PROCESS OIL AND GREASE
Document Type and Number:
WIPO Patent Application WO/2023/101031
Kind Code:
A1
Abstract:
[Problem] To provide a mineral oil having excellent weather resistance, and a process oil and a grease that contain said mineral oil. [Solution] A mineral oil that satisfies requirement (X1). Requirement (X1): Regarding the second derivative (A") of the absorbance (A) of the absorption spectrum of the mineral oil by wavelength (λ), the second derivative value (A"303) at 303 nm and the second derivative value (A"308) at 308 nm satisfy formula (f1). (A"303) ≤ (A"308) … (f1)
Inventors:
KURODA NORIHIRO (JP)
TAKAHASHI MASAHIRO (JP)
TSUZUKI MASATOMO (JP)
ONO TAKASHI (JP)
TAKAHASHI MASAHIRO (JP)
TSUZUKI MASATOMO (JP)
ONO TAKASHI (JP)
Application Number:
PCT/JP2022/044800
Publication Date:
June 08, 2023
Filing Date:
December 05, 2022
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M101/02; C10N30/00; C10N50/10
Foreign References:
| JP2007112824A | 2007-05-10 | |||
| JP2013194164A | 2013-09-30 | |||
| JP2013203961A | 2013-10-07 | |||
| JP2013189563A | 2013-09-26 | |||
| JP2021017509A | 2021-02-15 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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