Lubricant compositions
AssigneeSeagate Technology LLC
InventorJiping Yang
Life of this patent
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Abstract
Provided herein is a lubricant including a compound of Formula I L-(CF2CF2O)n—CF2CH2O—N—OCH2CF2O—(CF2CF2O)m-M (Formula I) wherein L is selected from the group consisting of M is selected from the group consisting of wherein each instance of R1, R2, and R3 is independently selected from the group consisting of hydroxyl, alkoxyl, carbocycyl, phenyl, heterocycyl, piperonyl, carboxyl, alkylamido, acetamido, carbamoyl, N-alkylcarbamoyl, N,N-dialkylcarbamoyl, 2,3-dihydroxy-1-propoxyl, acryloyl, alkacryloyl, methacryloyl, a substituent of methyl methacrylate, and a substituent of glycidyl ether; and wherein n≧1, m≧1, and n and m are the same or different.
Claims20
A compound of Formula I:
- L-(CF2CF2O)n—CF2CH2O—N—OCH2CF2O—(CF2CF2O)m-M
- wherein
- L is selected from the group consisting of
- M is selected from the group consisting of
- wherein each instance of R1, R2, and R3 is independently selected from the group consisting of hydroxyl, alkoxyl, carbocycyl, phenyl, heterocycyl, piperonyl, carboxyl, alkylamido, acetamido, carbamoyl, N-alkylcarbamoyl, N,N-dialkylcarbamoyl, 2,3-dihydroxy-1-propoxyl, acryloyl, alkacryloyl, methacryloyl, a substituent of methyl methacrylate, and a substituent of glycidyl ether;
- and
- wherein
- n≧1,
- m≧1, and
- n and m are the same or different.
An apparatus, comprising:
- a substrate;
- a magnetic layer over the substrate for magnetic recording;
- a protective overcoat for protecting the magnetic layer;
- and
- a layer of lubricant over the protective overcoat comprising a compound of Formula I
- L-(CF2CF2O)n—CF2CH2O—N—OCH2CF2O—(CF2CF2O)m-M
- wherein
- L is selected from the group consisting of
- M is selected from the group consisting of
- wherein each instance of R1, R2, and R3 is independently selected from the group consisting of hydroxyl, alkoxyl, carbocycyl, phenyl, heterocycyl, piperonyl, carboxyl, alkylamido, acetamido, carbamoyl, N-alkylcarbamoyl, N,N-dialkylcarbamoyl, 2,3-dihydroxy-1-propoxyl, acryloyl, alkacryloyl, methacryloyl, a substituent of methyl methacrylate, and a substituent of glycidyl ether;
- and
- wherein
- n≧1,
- m≧1, and
- n and m are the same or different.
An apparatus, comprising:
- a substrate;
- a magnetic layer over the substrate for magnetic recording;
- a protective overcoat for protecting the magnetic layer;
- and
- a layer of lubricant over the protective overcoat comprising a compound of Formula II
- (OH)CH2CH(OH)CH2—OCH2CF2O—(CF2CF2O)n—CF2CH2O—CH2CH(OH)—CH2—OCH2CF2O—(CF2CF2O)m—CF2CH2O—CH2CH(OH)CH2(OH)
- wherein
- n≧1,
- m≧1, and
- n and m are the same or different.
Dependencies are inferred from the claim text.