Abstract:
A lubricating oil contains a carbon-carbon backbone polymer containing residual unsaturation and bearing graft moieties derived from graft monomers containing ethylenic unsaturation and an epoxide moiety, and bonded to at least one of said graft moieties through an opened epoxide moiety, a Mannich base, prepared by reaction of an amine, an aldehyde, and a hindered phenol containing an active hydrogen atom.
Abstract:
Lubricating oils of improved properties contain a terpolymer of isocyanatoethyl methacrylate, lauryl methacrylate, and stearyl methacrylate which has been coupled with phenothiazine and 3-dimethylaminopropylamine.
Abstract:
Lubricating oils of improved properties contain a terpolymer of maleic anhydride, lauryl methacrylate, and stearyl methacrylate which has been functionalized or coupled with phenothiazine and with N-methyl piperazine.
Abstract:
A motor fuel additive composition comprising a mixture of an amido alkanolamine and a polyisobutylene amine is provided. A fuel composition providing intake valve and combustion chamber detergency is also provided.
Abstract:
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.
Abstract:
Lubricating oils of improved oxidative stability, dispersancy, and viscosity index contain ethylene-propylene copolymer bearing allyl glycidyl ether or glycidyl methacrylate graft monomer--which has been functionalized with 2,5-dimethyl aniline or 2,6-dimethyl morpholine.
Abstract:
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.
Abstract:
A lubricating oil contains a carbon-carbon backbone polymer containing residual unsaturation and bearing graft moieties derived from graft monomers containing ethylenic unsaturation and an epoxide moiety, and bonded to at least one of said graft moieties through an opened epoxide moiety, a Mannich base, prepared by reaction of an amine, an aldehyde, and a hindered phenol containing an active hydrogen atom.
Abstract:
A lubricating oil composition comprising(1) a major portion of a lubricating oil of a base oil viscosity, and(2) a minor portion of an antioxidant-dispersant lubricating additive prepared by the process comprising:(a) reacting a polyethyleneamine with an alkenylsuccinic acid anhydride to form a mono- and/or bis-alkenylsuccinimide;(b) adding to said mono-and/or bis-alkenylsuccinimide, a bis(hydroxyaromatic) substituted carboxylic acid and, optionally, another acylating agent to form an acylated mono-and/or bis-alkenylsuccinimide;(c) recovering said acylated mono-and/or bis-alkenylsuccinimide.
Abstract:
A lubricating oil contains, as a multifunctional additive, a polymer such as an ethylene - propylene copolymer, bearing graft moieties derived from allyl glycidyl ether, or glycidyl methacrylate as a graft monomer polymer being functionalized with (i) N-vinyl pyrrolidone and (ii) a Mannich base formed by the reaction p-nonyl phenol, N-(aminoethyl) piperazine, and formaldehyde.