abstract |
THE INVENTION RELATES TO THE FIELD OF LUBRICATING OILS. IT RELATES TO LUBRICATING OIL COMPOSITIONS CONTAINING MULTIFUNCTIONAL ADDITIVES, FOR EXAMPLE ADDITIVES DISPERSING MUD AND ADDITIVES IMPROVING THE VISCOSITY INDEX, WHICH ADDITIVES ARE PREPARED BY HYDROPEROXETHYDER OF COPOLYPENYDER AND COPOLYPYDERHYDER. APPLICATION TO THE LUBRICATION OF THE CRANKCASE OF AN INTERNAL COMBUSTION ENGINE. |