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US 8,604,233 B2Granted
Lubricant composition, magnetic recording medium, and novel polyether compound
AssigneeFUJIFILM Corporation
InventorsKazufumi Omura, Yasushi Komori
Life of this patent
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Abstract
An aspect of the present invention relates to a lubricant composition comprising a polyether compound comprising an alkylene oxide residue and a carbonic acid ester residue.
Claims13
A polyether compound denoted by general formula (II);
- wherein, in general formula (II), R1 denotes a linear or branched alkyl group, R2 denotes a hydrogen atom or a methyl group, and each of m1, m2, and m3 independently denotes an integer of equal to or greater than 1 but equal to or lower than 100.
A polyether compound denoted by general formula (2);
- wherein, in general formula (2), each R12 independently denotes a branched alkyl group with 1 to 8 carbon atoms, and n2 denotes an integer of equal to or greater than 2 but equal to or lower than 100.
A lubricant composition comprising a polyether compound comprising an alkylene oxide residue and a carbonic acid ester residue, wherein the polyether compound comprises a polyether compound denoted by general formula (II):
- wherein, in general formula (II), R1 denotes a linear or branched alkyl group, R2 denotes a hydrogen atom or a methyl group, and each of m1, m2, and m3 independently denotes an integer of equal to or greater than 1 but equal to or lower than 100.
Dependencies are inferred from the claim text.