| 摘要 |
A novel lubricant composition is disclosed. The composition comprises the compound selected from the formula (1), where D represents an m-valent cyclic group capable of bonding to "m" of -X-R; Xs respectively represent a single bond or a bivalent linking group selected from the group consisting of NR<1>, where R<1 >is a hydrogen atom or a C1-30 alkyl group, oxygen, sulfur, carbonyl, sulfonyl and any combinations thereof; Rs respectively represent a substituted or non-substituted alkyl, alkenyl, alkynyl, aryl or heterocyclic group provided that at least one R contains an ester bond; and m is an integer from 2 to 11. And a novel compound represented by the formula (2), where X<1 >to X<3>respectively represent a single bond or abivalent linking group selected from the group consisting of NR<1>, oxygen, sulfur, carbonyl, sulfonyl and any combinations thereof; and R<11 >to R<13 >respectively represent a substituted or non-substituted alkyl, alkenyl, alkynyl, aryl or heterocyclic group provided that at least one of them contains an ester bond; is also disclosed.
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