Sulfurized overbased calcium alkylphenolate lubricant composition (US Patent 4171270)
Patent number: 4171270 Granted: 1979-10-16 Filed: 1976-12-27 Inventors: Rodney L. Sung (Fishkill, NY, US); Benjamin H. Zoleski (Beacon, NY, US); Herbert C. Morris (Sugarland, TX, US); Elmer E. Schallenberg (Fishkill, NY, US) Assignees: Texaco Inc. (White Plains, NY, US)
Abstract
Lubricant oil comprising a hydrocarbon oil of lubricating viscosity, a sulfurized overbased calcium alkylphenolate detergent-inhibitor having a calcium metal to alkylphenol ratio of at least 2.9:2; and a sulfurized naphthenic
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