| 摘要 |
A rust-inhibiting oil composition is disclosed comprised of a mineral oil and an alkali-acid stable rust inhibitor which is represented by the formula: [R-Z-R2-O]y-R3 where R is an alkyl, alkenyl, alkaryl or alkenaryl radical; Z is oxygen or a methylene radical; y is a number from 1 to 4, R2 is AND R3 is a radical which remains when y hydroxyl groups are removed from a polyhydric alcohol anhydride. The base polyhydric alcohol anhydrides for R3 contains at least one hydroxyl group and at least four carbon atoms and the rust inhibitor contains at least one alkyl or alkenyl radical of at least eight carbon atoms. The rust inhibitor is used at levels of from 0.09 to 10 weight percent based upon the oil.
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