| abstract |
1,254,618. Lubricants. CHEVRON RESEARCH CO. 11 Dec., 1969 [17 Dec., 1968], No. 60613/69. Heading C5F. [Also in Division C3] Lubricating oil composition comprise, as detergents, products obtained by reacting (A) an alkenyl succinic acid compound RCH(COX)CH 2 COX where R is a C 14-300 alkenyl group with α- or #- ethylenic unsaturation and X is hydroxyl or C 1-12 hydrpcarbyloxy or the X groups together constitute oxygen of an anhydride group, with (B) chlorine or bromine to form a mono- or dihalogenated succinyl compound (C) comprising a lactone ring, and contacting (C) with (D) ammonia or a primary or secondary amine having 1 to 30 carbon atoms, 1 to 10 amine nitrogen atoms and optionally 1 to 10 oxygen atoms as ether or hydroxyl groups, the mole ratio of (C) to (D) being 1À5 to 10 : 1, the product containing at least 30 carbon atoms and at least 1À5 weight per cent nitrogen. The oil may be a paraffinic, naphthenic, asphaltic or mixed base mineral oil, polyolefin, polyalkylene oxide, aromatic ether, carboxylate ester, phosphate ester or silicate ester, and may contain conventional additives such as di(C 4-36 hydrocarbyl) phosphorodithioates, pour point depressants, oiliness agents, antioxidants and rust inhibitors. R may be derived from polypropylene or polyisobutylene, and the amine may be an alkylene polyamine, polyalkylene polyamine, alkanolamine or polyalkyleneoxyamine. Examples describe compositions of mineral lubricating oils, zinc dialkyl phosphorodithioate, overbased calcium mahogany sulphonate and detergents prepared by reacting polyisobutenyl succinic anhydride with chlorine and diethylene triamine. |