摘要:
An additive composition comprising a graft and amine-derivatized copolymer prepared from ethylene and at least one C.sub.3 to C.sub.10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene, from about 20 to 85 mole percent of said C.sub.3 to C.sub.10 alpha-monoolefin and from about 0 to 15 mole percent of said polyene, said copolymer having a number average molecular weight ranging from about 5,500 to 50,000 and having grafted thereon at least 1.8 molecules of a carboxylic acid acylating function per molecule of said copolymer and reacting said grafted copolymer with an amino-aromatic polyamine compound from the group consisting of an N-arylphenylenediamine, an aminocarbazole, an aminoindole, an amino-indazolinone, an aminomercaptotriazole, and an amino-perimidine to form said graft and amine-derivatized copolymer, and a lubricating oil composition containing same are provided.
摘要:
A dispersant/antioxidant bound VII polymethacrylate lubricant additive composition prepared by:(a) combining a polyunsaturated monomer with (C.sub.1 -C.sub.20) alkyl monomers and, optionally, a dispersant monomer in an oil solvent to provide an intermediate reaction mixture;(b) stirring and purging the reaction mixture;(c) heating the purged mixture and adding a radical polymerization catalyst to the purged mixture;(d) heating the mixture to a sufficiently high temperature to remove any excess of the polymerization catalyst therefrom;(e) (optionally) recovering the intermediate product polymethacrylate;(f) combining the intermediate product with an aromatic nitroso compound to provide an intermediate reaction mixture;(g) stirring and purging the intermediate reaction mixture; and(h) recovering from the purged mixture the product polymethacrylate.
摘要:
A lubricating oil composition having improved dispersancy and viton seal compatibility. The dispersant being prepared by coupling two mono-alkenyl succinimides with an aldehyde and a phenol. The resulting coupled succinimide is then acylated with glycolic acid to form a glycolated Mannich phenol coupled mono-alkenyl succinimide.
摘要:
A diesel fuel composition comprising:(a) a major portion of a diesel fuel, and(b) a minor amount, as a diesel fuel injector detergent additive, of a Mannich coupled product of bis-polyisobutylene succinimide of an amine, prepared by:(i) reacting an alkenyl succinimide acid anhydride with an amine to form a bis-succinimide;(ii) treating the bis-succinimide with nonylphenol in the presence of an aldehyde to form a Mannich phenol coupled bis-succinimide product; and(iii) recovering the product Mannich phenol coupled bis-succinimide.
摘要:
A gasoline composition comprising:(a) a major portion of a gasoline fuel, and(b) a minor amount, as a gasoline detergent additive, of a Mannich coupled product of bis-polyisobutylene succinimide of an amine, prepared by:(i) reacting an alkenyl succinimide acid anhydride with an amine to form a bis-succinimide;(ii) treating the bis-succinimide with nonylphenol in the presence of an aldehyde to form a Mannich phenol coupled bis-succinimide product; and(iii) recovering the product Mannich phenol coupled bis-succinimide.
摘要:
A lubricating oil composition having improved dispersancy and viton seal compatibility. The dispersant being prepared by coupling two polyethyleneamines with an aldehyde and a phenol, followed by conversion to a succinimide. The resulting coupled succinimide is then acylated with glycolic acid to form a glycolated Mannich phenol coupled mono-alkenyl succinimide.
摘要:
Lubricating oil of improved dispersancy and anti-oxidancy contains an ethylene-propylene copolymer onto which has been graft polymerized allyl glycidyl ether, the graft polymer having been thereafter functionalized with (i) N-vinyl pyrrolidone and (ii) a Mannich base formed from N-(aminoethyl) piperazine, formaldehyde, and nonyl phenol.
摘要:
A dispersant/antioxidant bound VII polymethacrylate lubricant additive composition prepared by:(a) reacting a methacrylamide with an amino-alkyl, methacrylamide, an alkyl methacrylate and an oil solvent to provide a intermediate reaction mixture;(b) stirring and purging the reaction mixture;(c) heating the purged mixture and adding a mercaptan and a radical polymerization catalyst to the purged mixture;(d) heating the mixture to a sufficiently high temperature to remove any excess of the polynmerization catalyst therefrom; and(e) recovering the product polymethacrylate.
摘要:
A polymeric lubricant additive that behaves as a viscosity index improver and imparts enhanced anti-oxidancy, dispersancy, and anti-wear properties to said lubricant oil has been prepared. The polymeric substrate is a random co- or terpolymer of ethylene propylene and a third monomer; or a block terpolymer of styrene--ethylenebutylene--styrene where hydrogenation has removed aliphatic unsaturation.Ethylenically unsaturated carboxylic acid or acid anhydride is grafted to these aforementioned substrates and imidized with amino-thiadiazole of the formula: ##STR1## wherein R.sub.1 is H.sub.2 or a (C.sub.1 -C.sub.10) alkyl radical selected from the group consisting of a alkyl, alkenyl, alkoxyl, aralkyl, alkaryl, hydroxyalkyl and aminoalkyl, to produce said polymeric lubricant additive.