Lubricant for skis
AssigneesAsahi Glass Company, Limited, Asics Corporation
InventorsYasuyuki Tokui, Isao Tanaka, Takuo Morimoto, Sachio Ohtoshi, Masaru Yamauchi
Life of this patent
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Abstract
A lubricant for skis, which comprises a fluorine compound containing a polyfluoroalkyl group and having a melting point of at most 100.degree. C., wherein the fluorine compound is at least one member selected from the group consisting of an alcohol containing a polyfluoroalkyl group, an ester containing a polyfluoroalkyl group and a polyfluoroalkyl ester polymer of (meth)acrylic acid.
Claims12
A ski having upon its sole a lubricant, which comprises a fluorine compound containing a polyfluoroalkyl group and having a melting point of at most 100.degree. C., wherein the fluorine compound is at least one member selected from the group consisting of:
- (a) an alcohol containing a polyfluoroalkyl group of the formula (1)
- Rf.R.sub.1.OH (1)
- wherein Rf is a polyfluoroalkyl group having from 4 to 20 carbon atoms, and R.sub.1 is a bivalent hydrocarbon group having from 1 to 10 carbon atoms,
- (b) an ester containing a polyfluoroalkyl group of the formula (2):
- R.sub.2.COO.R.sub.6.R.sub.3 ( 2)
- wherein at least one of R.sub.2 and R.sub.3 is a polyfluoroalkyl group having from 4 to 20 carbon atoms, and the rest is a monovalent hydrocarbon group having from 1 to 20 carbon atoms, and R.sub.6 is nil or a bivalent hydrocarbon group having from 1 to 20 carbon atoms, and
- (c) a homopolymer of copolymer of a polyfluoroalkyl ester of (meth)acrylic acid or the formula (3):
- CH.sub.2 .dbd.C(R.sub.4).COO.R.sub.5 Rf (3)
- wherein Rf is a polyfluoroalkyl group having from 4 to 20 carbon atoms, R.sub.4 is hydrogen or a methyl group, and R.sub.5 is a bivalent hydrocarbon group having from 1 to 10 carbon atoms.
A lubricant for skis, which comprises a fluorine compound containing a polyfluoroalkyl group and having a melting point of at most 100.degree. C., wherein the fluorine compound is at least one member selected from the group consisting of:
- (a) an alcohol containing a polyfluoroalkyl group of the formula (1):
- Rf.R.sub.1.OH (1)
- wherein Rf is a polyfluoroalkyl group having from 4 to 20 carbon atoms, and R.sub.1 is a bivalent hydrocarbon group having from 1 to 10 carbon atoms,
- (b) an ester containing a polyfluoroalkyl group of the formula (2):
- R.sub.2.COO.R.sub.6.R.sub.3 ( 2)
- wherein at least one of R.sub.2 and R.sub.3 is a polyfluoroalkyl group having from 4 to 20 carbon atoms, and the rest is a monovalent hydrocarbon group having from 1 to 20 carbon atoms, and R.sub.6 is nil or a bivalent hydrocarbon group having from 1 to 20 carbon atoms, and
- (c) a homopolymer or copolymer of a polyfluoroalkyl ester of (meth)acrylic acid or the formula (3):
- CH.sub.2 .dbd.C(R.sub.4).COO.R.sub.5 Rf (3)
- wherein Rf is a polyfluoroalkyl group having from 4 to 20 carbon atoms, R.sub.4 is hydrogen or a methyl group, and R.sub.5 is a bivalent hydrocarbon group having from 1 to 10 carbon atoms, wherein the fluorine compound having a melting point of at most 100.degree. C. contains fluorinated graphite.
A lubricant for skis, which comprises a fluorine compound containing a polyfluoroalkyl group and having a melting point of at most 100.degree. C., wherein the fluorine compound is at least one member selected from the group consisting of:
- (a) an alcohol containing a polyfluoroalkyl group of the formula (1):
- Rf.R.sub.1.OH (1)
- wherein Rf is a polyfluoroalkyl group having from 4 to 20 carbon atoms, and R.sub.1 is a bivalent hydrocarbon group having from 1 to 10 carbon atoms,
- (b) an ester containing a polyfluoroalkyl group of the formula (2):
- R.sub.2.COO.R.sub.6.R.sub.3 ( 2)
- wherein at least one of R.sub.2 and R.sub.3 is a polyfluoroalkyl group having from 4 to 20 carbon atoms, and the rest is a monovalent hydrocarbon group having from 1 to 20 carbon atoms, and R.sub.6 is nil or a bivalent hydrocarbon group having from 1 to 20 carbon atoms, and
- (c) a homopolymer or copolymer of a polyfluoroalkyl ester of (meth)acrylic acid or the formula (3):
- CH.sub.2 .dbd.C(R.sub.4).COO.R.sub.5 Rf (3)
- wherein Rf is a polyfluoroalkyl group having from 4 to 20 carbon atoms, R.sub.4 is hydrogen or a methyl group, and R.sub.5 is a bivalent hydrocarbon group having from 1 to 10 carbon atoms, and at least one member selected from the group consisting of paraffin wax and a polyfluoroalkane of the formula (4):
- C.sub.n F.sub.2n+2 ( 4)
- wherein n is an integer of from 10 to 20.
Dependencies are inferred from the claim text.