Fluorine-containing compounds
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsNaoko Mizuno, Yoshiaki Kai, Takashi Suzuki
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Abstract
Disclosed in this invention are novel fluorine-contianing compounds of a specific molecular structure having a fluoroalkylether terminal group, an aliphatic hydrocarbon terminal group and an imino terminal group in the same molecule and a molecular weight of from several hundred to about 3,000, and a process for preparing such compounds. The fluorine-containing compounds of this invention can be utilized as a lubricant composition for magnetic recording media.
Claims3
A fluorine-containing compound represented by the formula:
- ##STR24## wherein Rf is a fluoroalkylether terminal group having 5-50 carbon atoms;
- R.sub.1 is an aliphatic alkyl terminal group or an aliphatic alkenyl terminal group and has 10 or more carbon atoms;
- R.sub.2 and R.sub.3 are an alkenylene group;
- and m is 0 or 1.
A lubricant composition comprising a fluorine-containing compound represented by the formula ##STR25## where Rf is a fluoroalkylether terminal group having 5-50 carbon atoms;
- R.sub.1 is an aliphatic alkyl terminal group or an aliphatic alkenyl terminal group and has 10 or more carbon atoms;
- R.sub.2 and R.sub.3 are an alkenylene group;
- and m is 0 or 1.
A magnetic recording medium comprising a non-magnetic support, a ferromagnetic metal film formed on the non-magnetic support, a lubricant layer formed on the ferromagnetic metal film, and a protective film formed between the ferromagnetic metal film and the lubricant layer,
- the lubricant layer containing at least one fluorine-containing compound represented by the formula:
- ##STR26## wherein Rf is a fluoroalkylether terminal group having 5-50 carbon atoms;
- R.sub.1 is an aliphatic alkyl terminal group or an aliphatic alkenyl terminal group and has 10 or more carbon atoms;
- R.sub.2 and R.sub.3 are an alkenylene group;
- and m is 0 or 1.
Dependencies are inferred from the claim text.