Stainproofing oil for a heat fixing roller
AssigneeAsahi Glass Company, Limited
InventorsYutaka Furukawa, Seisaku Kumai, Mami Yoshino
Life of this patent
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Abstract
A stainproofing oil for a heat fixing roller, which consists essentially of a fluorosilicone compound having a silicon atom to which a monovalent fluorine-containing group selected from the formulae (1) to (3) is bonded: R.sub.f.sup.1 --X.sup.1 -- (1) R.sub.f.sup.2 --X.sup.2 --O--X.sup.3 -- (2) R.sub.f.sup.3 --X.sup.4 --O--X.sup.5 -- (3) wherein R.sub.f.sup.1 is a monovalent polyfluorohydrocarbon group, R.sub.f.sup.2 is a monovalent polyfluoroalkyl group containing an ether oxygen atom, R.sub.f.sup.3 is a monovalent polyfluorohydrocarbon group, and each of X.sup.1 to X.sup.5 independently is a bivalent hydrocarbon group.
Claims8
A heat fixing roller coated with a stainproofing oil which consists essentially of a fluorosilicone compound having a silicon atom to which a monovalent fluorine-containing group selected from the formulae (1) to (3) is bonded:
- R.sub.f.sup.1 --X.sup.1 -- (1)
- R.sub.f.sup.2 --X.sup.2 --O--X.sup.3 ( 2)
- R.sub.f.sup.3 --X.sup.4 --O--X.sup.5 ( 3)
- wherein R.sub.f.sup.1 is a monovalent polyfluorohydrocarbon group of the formula CF.sub.3 (CF.sub.2).sub.n --wherein n is an integer of from 3 to 13, R.sub.f.sup.2 is a monovalent polyfluoroalkyl group containing an ether oxygen atom R.sub.f.sup.3 is a monovalent polyfluorohydrocarbon group and each of X.sup.1 to X.sup.5 independently is a bivalent hydrocarbon group.
A method for stainproofing a heat fixing roller, which comprises applying to the surface of the heat fixing roller, a fluorosilicone compound having a silicon atom to which a monovalent fluorine-containing group selected from the formulae (1) to (3) is bonded:
- R.sub.f.sup.1 --X.sup.1 -- (1)
- R.sub.f.sup.2 --X.sup.2 --O--X.sup.3 -- (2)
- R.sub.f.sup.3 --X.sup.4 --O--X.sup.5 -- (3)
- wherein R.sub.f.sup.1 is a monovalent polyfluorohydrocarbon group of the formula CF.sub.3 (CF.sub.2).sub.n --wherein n is an integer of from 3 to 13, R.sub.f.sup.2 is a monovalent polyfluoroalkyl group containing an either oxygen atom, R.sub.f.sup.3 is a monovalent polyfluorohydrocarbon group, and each of X.sup.1 to X.sup.5 independently is a bivalent hydrocarbon group.
Dependencies are inferred from the claim text.