摘要:
Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived from N-vinyl pyrrolidone and phenothiazine.
摘要:
Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived from N-vinyl pyrrolidone and phenothiazine.
摘要:
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.
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 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.
摘要:
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.
摘要:
Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived fron N-vinyl pyrrolidone and phenothiazine.
摘要:
Lube oils of improved properties contain ethylene-propylene copolymer bearing moieties derived from the reaction product of allyl glycidyl ether and a heterocyclic amine such as N-(3-aminopropyl) morpholine.
摘要:
Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived from N-vinyl pyrrolidone and phenothiazine.
摘要:
An oil containing a viscosity index improver of improved oxidative stability contains, as an anti-oxidant system 2,6-di-t-butylphenol and 1-3-aminopropyl-2-pipecoline.