Lubricating oil additives

866,498. N-vinyl butyrolactam copolymers. ESSO RESEARCH & ENGINEERING CO. May 25, 1959 [Nov. 18, 1958], No. 37033/58. Addition to 808,665. Class 2(6). [Also in Group III] An oil-soluble copolymer of (1) an N-vinyl butyrolactam and (2) an itaconate ester of a C 8 -C 18 alcohol is employed as an o...

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Hauptverfasser:	BRYAN JOAN D, AGIUS PETER J. V. J, GARBETT THOMAS A
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS LUBRICATING COMPOSITIONS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NATURAL GAS ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Zusammenfassung:	866,498. N-vinyl butyrolactam copolymers. ESSO RESEARCH & ENGINEERING CO. May 25, 1959 [Nov. 18, 1958], No. 37033/58. Addition to 808,665. Class 2(6). [Also in Group III] An oil-soluble copolymer of (1) an N-vinyl butyrolactam and (2) an itaconate ester of a C 8 -C 18 alcohol is employed as an oil additive (see Group III). Monomers (1) and (2) may be copolymerized with (3) an ester formed between an unsaturated alcohol and a C 2 -C 6 carboxylic acid. Polymerization may be effected with the aid of catalysts (e.g. benzoyl peroxide or alphaalpha1-azobisisobutyronitrile) or radiation (e.g. ultra-violet, beta or gamma rays). In an example, an N-vinyl pyrrolidone/lauryl itaconate/vinyl acetate copolymer is prepared, using benzoyl peroxide dissolved in dimethyl phthalate as catalyst. For comparison purposes, an N-vinyl pyrrolidone/lauryl fumarate/vinyl acetate copolymer is similarly prepared.