| abstract |
An extreme-pressure additive and a friction coefficient modifier each composed of a compound having a group of general formula (I) (wherein R1 to R3 are each hydrogen or methyl, at least one of R?2 and R3¿ being hydrogen) in the molecule; a load-bearing baking fluid, a wear-resistant fluid and a heat-polymerizable substance containing them respectively; and preferably a flame-retardant fluid containing the compound. The above additive and modifier are excellent in performance and are suitably usable for lubricating oils, metal working oils and hydraulic oils. When exposed to high temperature, the above flame-retardant fluid is heat-polymerized to inhibit the vaporization of flammable substances, thus preventing a fire. Therefore, the fluid is suitable for lubricating oils, metal working oils, hydraulic oils, heat treatment oils, grease and so on. |