Title:
【発明の名称】硫化されたフエノール系酸化防止剤組成物、これを製造する方法、及びこれを含む石油製品
Document Type and Number:
Japanese Patent JP3332843
Kind Code:
B2
Abstract:
The present invention relates generally to substantially liquid, chlorine-free, sulfur-bridged hindered phenols useful as antioxidants and more specifically to the preparation of a substantially liquid, chlorine-free, sulfur-bridged, hindered phenol compositions, using 1-propanol as the reaction solvent, which are effective antioxidant(s) in lubricating oils and liquid organic fuels without causing excessive copper corrosion and which exhibit improved elastomer seal compatibility and less tendency to crystallize. The invention also includes lubricating oils and liquid organic fuels containing an antioxidant additive of the present invention, as well as a method of reducing oxidation in the lubricating oil or liquid organic fuel used in a machine such as an internal combustion engine.
Inventors:
Vincent Jay Gutto
Avas Kadohodayan
Avas Kadohodayan
Application Number:
JP5125098A
Publication Date:
October 07, 2002
Filing Date:
February 18, 1998
Export Citation:
Assignee:
ETHYL CORPORATION
International Classes:
C07C319/14; C07C319/22; C09K15/14; C10L1/24; C10L10/08; C10M135/02; C07C323/20; C10M135/30; C10N30/10; (IPC1-7): C09K15/14; C10M135/02
Domestic Patent References:
| JP3223395A | ||||
| JP3223396A | ||||
| JP3218348A | ||||
| JP4910663B1 |
Other References:
【文献】米国特許3953519(US,A)
【文献】米国特許3992308(US,A)
【文献】米国特許3250712(US,A)
【文献】米国特許3929654(US,A)
【文献】米国特許3992308(US,A)
【文献】米国特許3250712(US,A)
【文献】米国特許3929654(US,A)
Attorney, Agent or Firm:
Heikichi Odashima