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US 9,926,508 B2Granted
Ionic liquid, lubricant, and magnetic recording medium
AssigneeDexerials Corporation
InventorsHirofumi Kondo, Kouki Hatsuda, Makiya Ito, Nobuo Tano, Kyungsung Yun, Masayoshi Watanabe
Life of this patent
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Abstract
A lubricant including an ionic liquid, which includes a conjugate acid (B+) and a conjugate base (X−), and is protic, wherein the conjugate acid includes a straight-chain hydrocarbon group having 10 or more carbon atoms, and wherein the conjugate base is represented by the following general formula (1): where n is an integer of from 0 to 6 in the general formula (1).
Claims9
A lubricant comprising:
- an ionic liquid, which includes a conjugate acid (B+) and a conjugate base (X−), and is protic,
- wherein the ionic liquid is represented by any one of the following general formulae (2) to (4), and
- wherein the conjugate base is represented by the following general formula (1):
- where, in the general formulae (2) to (4), X− is the conjugate base represented by the general formula (1),
- where three of R1, R2, R3, and R4 is a hydrogen atom, and other one of R1, R2, R3, and R4 is a group including a straight-chain hydrocarbon group having 10 or more carbon atoms in the general formula (2),
- where R1 is a group including a straight-chain hydrocarbon group having 10 or more carbon atoms, and n is 0 or 1 in the general formula (3), and
- where R1 is a group including a straight-chain hydrocarbon group haying 10 or more carbon atoms in the general formula (4)
- where n is an integer of from 0 to 6 in the general formula (1).
5 more elements
An ionic liquid comprising:
- a conjugate acid (B+);
- and
- a conjugate base (X−),
- wherein the ionic liquid is represented by any one of the following general formulae (2) to (4),
- wherein the conjugate base is represented by the following general formula (1), and
- wherein the ionic liquid is protic,
- where, in the general formulae (2) to (4), X− is the conjugate base represented by the general formula (1),
- where three of R1, R2, R3, and R4 is a hydrogen atom, and other one of R1, R2, R3, and R4 is a group including a straight-chain hydrocarbon group having 10 or more carbon atoms in the general formula (2),
- where R1 is a group including a straight-chain hydrocarbon group haying 10 or more carbon atoms, and n is 0 or 1 in the general formula (3), and
- where R1 is a group including a straight-chain hydrocarbon croup haying 10 or more carbon atoms in the general formula (4)
- where n is an integer of from 0 to 6 in the general formula (1).
8 more elements
Dependencies are inferred from the claim text.