Cyclophosphazene derivatives
US-2017260327-A1 · Sep 14, 2017 · US
Fluoropolyether compound, and lubricant and magnetic disc using same
US9928865B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9928865-B2 |
| Application number | US-201414764339-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 17, 2014 |
| Priority date | Dec 9, 2013 |
| Publication date | Mar 27, 2018 |
| Grant date | Mar 27, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A compound of the formula (1), and lubricant, and magnetic disk each using the same A-O—CH 2 —Rf—CH 2 —B (1) wherein A is a group of the formula (a) below, B is a group of the formula (b) or (c) or (d) below, p is 0, 1 or 2, q is a real number of 2 to 10, R is C 1-4 fluoroalkyl, Ar is unsubstituted or substituted aromatic group with C 1-30 alkyl or C 1-30 alkoxyl, Rf is —CF 2 CF 2 O(CF 2 CF 2 CF 2 O) x CF 2 CF 2 — or —CF 2 CF 2 CF 2 O(CF 2 CF 2 CF 2 CF 2 O) y CF 2 CF 2 CF 2 —, x and y are each a real number of 0 to 50.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound of the formula (1) A-O—CH 2 —Rf—CH 2 —B (1) wherein A is a group of the formula (a) below, B is a group of the formula (b) or (c) or (d) below, p is 0, 1 or 2, q is a real number of 2 to 10, R is C 1-4 fluoroalkyl, Ar is unsubstituted or substituted aromatic group with C 1-30 alkyl or C 1-30 alkoxyl, Rf is —CF 2 CF 2 O(CF 2 CF 2 CF 2 O) x CF 2 CF 2 — or —CF 2 CF 2 CF 2 O(CF 2 CF 2 CF 2 CF 2 O) y CF 2 CF 2 CF 2 —, x and y are each a real number of 0 to 50 2. A compound as defined in claim 1 wherein B is a group of the formula (b), and p is 1 or 2. 3. A compound as defined in claim 1 wherein Rf is —CF 2 CF 2 O(CF 2 CF 2 CF 2 O) x CF 2 CF 2 —, x is a real number of 0 to 50. 4. A compound as defined in claim 1 wherein Rf is —CF 2 CF 2 CF 2 O(CF 2 CF 2 CF 2 CF 2 O) y CF 2 CF 2 CF 2 —, y is a real number of 0 to 50. 5. A lubricant containing a compound of the formula (1) A-O—CH 2 —Rf—CH 2 —B (1) wherein A is a group of the formula (a) below, B is a group of the formula (b) or (c) or (d) below, p is 0, 1 or 2, q is a real number of 2 to 10, R is C 1-4 fluoroalkyl, Ar is unsubstituted or substituted aromatic group with C 1-30 alkyl or C 1-30 alkoxyl, Rf is —CF 2 CF 2 O(CF 2 CF 2 CF 2 O) x CF 2 CF 2 — or —CF 2 CF 2 CF 2 O(CF 2 CF 2 CF 2 CF 2 O) y CF 2 CF 2 CF 2 —, x and y are each a real number of 0 to 50 6. A lubricant as defined in claim 5 wherein B is a group of the formula (b), and p is 1 or 2. 7. A magnetic disk having at least a recording layer and a protective layer formed over a substrate, and a lubricant layer provided over a surface of the resulting assembly and comprising a compound containing a perfluoropolyether structure, the disk having a compound of the formula (1) as the lubricant layer A-O—CH 2 —Rf—CH 2 —B (1) wherein A is a group of the formula (a) below, B is a group of the formula (b) or (c) or (d) below, p is 0, 1 or 2, q is a real number of 2 to 10, R is C 1-4 fluoroalkyl, Ar is unsubstituted or substituted aromatic group with C 1-30 alkyl or C 1-30 alkoxyl, Rf is —CF 2 CF 2 O(CF 2 CF 2 CF 2 O) x CF 2 CF 2 CF 2 — or —CF 2 CF 2 CF 2 O(CF 2 CF 2 CF 2 CF 2 O) y CF 2 CF 2 CF 2 —, x and y are each a real number of 0 to 50 8. A magnetic disk as defined in claim 7 wherein B is a group of the formula (b), and p is 1 or 2.
Assignees
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Classifications
used as base material · CPC title
in connection with recordings on magnetic tape or disc · CPC title
having three phosphorus atoms as ring hetero atoms in the same ring {(C07F9/65812 takes precedence)} · CPC title
used as base material · CPC title
- C07F9/65815Primary
n = 3 · CPC title
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Frequently asked questions
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- What does patent US9928865B2 cover?
- A compound of the formula (1), and lubricant, and magnetic disk each using the same A-O—CH 2 —Rf—CH 2 —B (1) wherein A is a group of the formula (a) below, B is a group of the formula (b) or (c) or (d) below, p is 0, 1 or 2, q is a real number of 2 to 10, R is C 1-4 fluoroalkyl, Ar is unsubstituted or substituted aromatic group with C 1-30 alkyl or C 1-30 alkoxyl, Rf is —CF 2 CF 2 O(CF …
- Who is the assignee on this patent?
- Moresco Corp
- What technology area does this patent fall under?
- Primary CPC classification C07F9/65815. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 27 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).