Improvements in non-corrosive lubricating oils

    公开(公告)号:GB844433A

    公开(公告)日:1960-08-10

    申请号:GB4165058

    申请日:1958-12-24

    Applicant: BASF AG

    Abstract: A lubricating composition of reduced tendency to produce rust or corrosion comprises a lubricating oil and (i) a substance of formula: wherein R is an alkyl or alkyl radicle having more than 8 carbon atoms, R1 and R11 are hydrogen atoms or alkyl, alkenyl, alkinyl, aryl or aralkyl radicles and X is oxygen or sulphur, or (ii) an N-methylol compound produced by the action of formaldehyde on a substance of the above formula. The lubricating oil may be a mineral oil, a vegetable oil or an ester oil, while boring oils, which are used in the form of aqueous emulsions, are also mentioned. Ingredient (i) may be N - stearyl - glyoxal monoureine of an alkyl ether thereof, dimethyl- or or dibenzyl-N-stearyl-dihydroxy-imidazoline or ethers thereof, or N - palmityl - glyoxal dihydroxymonothioureine. In the examples, mineral lubricating oil compositions are described which contain stearyl glyoxal monoureine or its monomethyl or monobutyl ether. Specifications 717,287, 720,386 and 783,051 are referred to.

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