摘要:
Multi-functional viscosity index improvers for lubricating oils containing an EPM or EPDM polymer onto which has been grafted an unsaturated functional monomer containing phenothiazine.
摘要:
Multi-functional viscosity index improvers for lubricating oils containing an EPM or EPDM polymer onto which has been grafted an unsaturated functional monomer containing 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:
Fuel oils and lubricants of improved properties contain ethylene-propylene copolymers bearing units derived from N-vinyl pyrrolidone and phenothiazine.
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, the copolymer having a number average molecular weight ranging from about 5,500 to about 50,000 and having grafted thereon at least 1.8 molecules of a carboxylic acid acylating function per molecule of the copolymer and reacting the grafted copolymer with an amine substituted phenothiazine to form the grafted and amine-derivatized copolymer, and a lubricating oil composition containing same are provided.
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 N-aminoethylpiperazine.
摘要:
Dispersant viscosity index improvers for lubricating oils contain an EPR or EPT polymer onto which has been graft polymerized isocyanatoethyl methacrylate and thereafter reacted with N-methyl piperazine.
摘要:
Multifunctional viscosity index improvers for lubricating oils containing olefin copolymers which have pendant groups derived from vinylbenzyl chloride and N-phenyl-p-phenylene diamine.
摘要:
Dispersant and antioxidant viscosity index improvers for lubricating oils containing an EPR or EPT polymer onto which has been graft polymerized with vinyl azlactone and thereafter reacted with N-phenyl-p-phenylene diamine.
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.