Lubricants for magnetic media

Details Lubricants for magnetic media Lubricants for magnetic media

G - Physics

11

B

G11B 5/71 (2006.01) C07C 335/02 (2006.01) C07D 239/50 (2006.01) C07F 9/6593 (2006.01) G11B 5/725 (2006.01)

Patent

CA 2041865

Amphiphilic compound having one of the following structures: (X-T)n-A-Ym and (X-T)n-R-(T-A)n wherein X is a fluorocarbon terminal group, T is a polar linking group, A is a nucleus other than saturated lower aliphatic, Y is a polar nonlinking group, R is a saturated or unsaturated, substituted or unsubstituted, straight or branched lower aliphatic group, n is at least one, and the sum of n and m is at least two. Such compounds are useful as lubricants for magnetic media. Also, a lubricated magnetic medium comprising a planar, polar surface covered with a monolayer comprising a compound having the structure described above, except that A can also be a saturated lower aliphatic group.

Composé amphiphile ayant une des structures suivantes : (X-T)n-A-Ym et (X-T)n-R-(T-A)n où X est un groupe fluorocarboné terminal, T est un groupe polaire liant, A est un noyau autre qu'un groupe aliphatique inférieur saturé, Y est un groupe polaire non liant, R est un groupe aliphatique inférieur saturé ou insaturé, substitué ou non substitué, linéaire ou ramifié, n est au moins un, et la somme de n et m donne au moins deux. Ces composés sont utiles comme lubrifiant pour les supports magnétiques. Également, un support magnétique lubrifié comprenant une surface planaire, polaire couverte d'une monocouche comprenant un composé ayant la structure décrite ci-dessus, sauf que A peut également être un groupe aliphatique inférieur saturé.

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