| 摘要 |
<p>1414749 Reacting phosphosulphurized polymers with aziridines EXXON RESEARCH & ENG CO 2 March 1973 [24 March 1972] 10231/73 Heading C3P [Also in Division C5] Oil-soluble dispersant/anti-oxidant additives for fuels and lubricants are made by reacting an aziridine with a phosphosulphurized hydrocarbon which has itself been made by reacting a hydrocarbon of M.W. 500-100,000 with 5-40 wt. per cent of its weight of a sulphide of phosphorus, the amount of reacted aziridine being 1-6 mols. per atom of phosphorus. The hydrocarbon is preferably a polymer of a C 2-5 monoolefin. Before reaction with the aziridine the phosphosulphurized hydrocarbon may be either hydrolysed with steam or refluxed with a C 1-3 , alcohol of alcohol/water mixture. The aziridinereacted product may be washed with methanol, ethanol or methanol/water, and may be further reacted with a C 1 -C 18 metal carboxylate or alcoholate, the metal being Zn, Cd or Pb. In examples, phosphosulphurized polyisobutylene, which in some cases has been methanoltreated, is reacted with ethylene imine or N-(2- aminoethyl) x aziridines in which x is 1, 2 or 3. In some examples the product is further reacted with zinc acetate. In a further example, phosphosulphurized ethylene/propylene/1,4-hexadiene terpolymer is reacted with ethylene imine.</p> |
