| 摘要 |
<p>Solutions of ethylene-propylene copolymers grafted with vinyl-containing monomers, maleic anhydride- or ethyienlcally-unsaturated acids, including functionalized derivatives thereof, and then reacted with polyols, polyamines or hydroxyamines, as well as hydrogenated butadiene or isoprene copolymers, which solutions have hazeforming tendencies in mineral oil And are generally useful as multifunctional lubricating oil additives, are reduced in haze-forming tendencies by treatment with 0.5 to 25 wt. ? of an alkyl hydroxy benzene compound, such as nonyl or docecyl phenol.</p> |
