Fluorine-containing lubricant compounds
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsYoshiaki Kai, Takashi Suzuki
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Abstract
A fluorine-containing compound represented by the general formula [I]: ##STR1## wherein R.sub.f, X, Y, W, Z, R.sub.1 -R.sub.3, l, m and n are as defined in the specifications. There are disclosed fluorine-containing compounds of specific structure which have in the molecule a fluoroalkyl ether end group, an aliphatic hydrocarbon end group and a carboxyl end group, and have molecular weights of hundreds to about 3,000; and a process for producing the fluorine-containing compounds. These fluorine-containing compounds can be utilized in magnetic recording media in the form of a lubricant composition.
Claims20
A fluorine-containing compound represented by the formula (II):
- ##STR88## wherein R.sub.f is a fluoroalkyl ether end group having 5 to 50 carbon atoms, R.sub.1 is an aliphatic alkyl end group or an aliphatic alkenyl end group, R'.sub.2 is an aliphatic alkylene group or an aliphatic polyalkylene oxide group, X is a connecting group selected from the group consisting of
- --COOR.sub.5 --and --CON(R.sub.6)--,
- R.sub.5 is an aliphatic alkylene group having no or one or more carbon atoms, R.sub.6 is hydrogen or an aliphatic alkyl group having 1 to 12 carbon atoms and each of m and n is zero or 1.
A fluorine-containing compound represented by the formula (III):
- ##STR89## wherein R.sub.f is a fluoroalkyl ether and group having 5 to 50 carbon atoms, R.sub.1 is an aliphatic alkyl end group or an aliphatic alkenyl end group, each of R".sub.2 and R.sub.4 is an aliphatic alkylene group having no or one or more carbon atoms, X' is a connecting group selected from the group consisting of
- --COOR'.sub.5 --and --CON(R.sub.6)--,
- R'.sub.5 is an aliphatic alkylene group, R.sub.6 is hydrogen or an aliphatic alkyl group having 1 to 12 carbon atoms, and m is zero or 1.
A fluorine-containing compound represented by the formula (VIII):
- ##STR90## wherein R.sub.f is a fluoroalkyl ether end group having 5 to 50 carbon atoms, R.sub.1 is an aliphatic alkyl end group or an aliphatic alkenyl end group, R'.sub.2 is an aliphatic alkylene group or an aliphatic polyalkylene oxide group, X is a connecting group selected from the group consisting of
- --COOR.sub.5 --and --CON(R.sub.6)--,
- R.sub.5 is an aliphatic alkylene group having no or one or more carbon atoms, R.sub.6 is hydrogen or an aliphatic alkyl group having 1 to 12 carbon atoms, Z' is a connecting group represented by the formula ##STR91## and m is zero or 1.
A fluorine-containing compound represented by the formula (IX):
- ##STR92## wherein R.sub.f is a fluoroalkyl ether end group having 5 to 50 carbon atoms, R'.sub.1 is an aliphatic alkyl end group, R'.sub.2 is an aliphatic alkylene group or an aliphatic polyalkylene oxide group, X is a connecting group selected from the group consisting of
- --COOR.sub.5 --and CON(R.sub.6)--,
- R.sub.5 is an aliphatic alkylene group having no or one or more carbon atoms, R.sub.6 is hydrogen or an aliphatic alkyl group having 1 to 12 carbon atoms, and each of m and n is zero or 1.
A fluorine-containing compound represented by the formula (X):
- ##STR93## wherein R.sub.f is a fluoroalkyl ether end group having 5 to 50 carbon atoms, R'.sub.1 is an aliphatic alkyl end group, R'.sub.2 is an aliphatic alkylene group or an aliphatic polyalkylene oxide group, R.sub.7 is hydrogen or methyl, X is a connecting group selected from the group consisting of
- --COOR.sub.5 --and CON(R.sub.6)--,
- R.sub.5 is an aliphatic alkylene group having no or one or more carbon atoms, R.sub.6 is hydrogen or an aliphatic alkyl group having 1 to 12 carbon atoms, and m is zero or 1.
Dependencies are inferred from the claim text.