Multiple function graft polymer
AssigneeCastrol Limited
InventorRichard P. Sauer
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Abstract
A multiple function polymer comprising a graft polymer of a polyolefin, a nitrogenous, ethylenically unsaturated, aliphatic or aromatic monomer having from 2 to about 50 carbon atoms, and an organo-metallic compound capable of reacting with said polyolefin is disclosed. Also disclosed is a process for making said multiple function graft polymer. Also disclosed is a lubricating oil comprising a lubricant base oil, the multiple function polymer, and optionally other dispersants. Also disclosed is a multiple function polymer comprising a graft polymer of a polyolefin, and an organo-metallic compound capable reacting with said polyolefin, and a process for making the same.
Claims21
A multiple function graft polymer comprising:
- a. a polyolefin,
- b. a nitrogenous, ethylenically unsaturated, aliphatic or aromatic monomer having from 2 to about 50 carbon atoms grafted onto said polyolefin;
- and
- c. an organo-metallic compound reacted with said grafted monomer.
A multiple function graft polymer comprising:
- a. a polyolefin having a weight average molecular weight from about 20,000 to about 500,000 and a polydispersity of from about 1 to about 15,
- b. a nitrogenous, ethylenically unsaturated, aliphatic or aromatic monomer having from 2 to about 50 carbon atoms, selected from the group consisting of 1-vinylimidazole, 1-vinyl-2-pyrrolidinone, N-allylimidazole, 1-vinylpyrrolidinone, 2-vinylpyridine, 4-vinylpyridine, N-methyl-N-vinylacetamide, diallyl formamide, N-methyl-N-allyl formamide, N-ethyl-N-allyl formamide, N-cyclohexyl-N-allyl formamide, 4-methyl-5-vinyl thiazole;
- N-allyl diisooctyl phenothiazine;
- 2-methyl-1-vinylimidazole, 3-methyl-1-vinylpyrazole, N-vinylpurine, N-vinylpiperazines, vinylpiperidines, vinylmorpholines, and combinations thereof grafted onto said polyolefin;
- and
- c. an organo-metallic compound reacted with said monomer said compound selected from the group consisting of molybdenum boro neodecanoate, molybdenum 2-ethyl hexanoate 4-nonyloxybenzoate, molybdenum (isosterate) (4-nonyloxybenzoate), molybdenum odecylbenzenesulfonate, molybdenum C18 branched-linear carboxylate, molybdenum C36 linear carboxylate, molybdenum C36+-C18 branched-linear carboxylate, molybdenum C36 branched-linear carboxylate, molybdenum C36/C36+ linear carboxylate, molybdenum C36+ branched alkyl carboxylate/t-butyl benzoate, molybdenum C18 branched alkyl carboxylate/t-butyl benzoate, molybdenum oleate, molybdenum C18 linear alkyl carboxylate/t-butyl benzoate, molybdenum octoate, molybdenum acetylacetonate, and combinations thereof.
A multiple function graft polymer comprising a molybdenum compound selected from the group consisting of molybdenum boro neodecanoate, molybdenum octoate, molybdenum acetylacetonate, and combinations thereof reacted with a graft reaction product of a nitrogenous, ethylenically unsaturated, aliphatic or aromatic monomer having from 2 to about 50 carbon atoms grafted on a polyolefin, said graft reaction product having a weight average molecular weight of from about 20,000 to about 500,000 and a molar proportion of grafted monomer to the polyolefin of at least about 13:1.
Dependencies are inferred from the claim text.