ENGINE LUBRICATING OIL ADDITIVE AND ENGINE LUBRICATING OIL COMPOSITION

摘要

PURPOSE: To obtain an engine lubricating oil additive comprising silane compounds, excellent in cleanliness in cleanliness of an engine piston and friction-reducing performance, capable of bringing the engine to have long life with reduced or no addition of a phosphor-based extreme pressure agent, etc., and useful for engines for land transportation and shipping. ;CONSTITUTION: This lubricating oil additive comprises silane compounds such as compounds of formula I [R is H, a 1-18C (branched) alkyl, a 2-18C (branched) alkenyl, a 6-18C aryl; R₁ is a 6-50C (branched) alkyl, a 6-50C (branched) alknyl a 6-50C aryl, the alkyl can have N, O or S or can be substituted by OH, carboxy, an alkoxycarbonyl, an alkenoxycarbonyl or an aryloxycarbonyl], formula II and formula III, etc.;COPYRIGHT: (C)1996,JPO