Claims
- 1. 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.
- 2. 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.
- 3. The method for stainproofing a heat fixing roller according to claim 2, wherein the formula (1) is represented by the formula (4):
- CF.sub.3 (CF.sub.2).sub.n --X.sup.6 -- (4)
- wherein n is an integer of from 3 to 13, and X.sup.6 is a C.sub.1-10 alkylene group.
- 4. The method for stainproofing a heat fixing roller according to claim 2, wherein the formula (2) is represented by the formula (5):
- F[CF(CF.sub.3)CF.sub.2 O].sub.m CF(CF.sub.3)--X.sup.7 --O--X.sup.8 --(5)
- wherein m is an integer of from 1 to 10, and each of X.sup.7 and X.sup.8 independently is a C.sub.1-10 alkylene group.
- 5. The method for stainproofing a heat fixing roller according to claim 2, wherein the formula (3) is represented by the formula (6):
- CF.sub.3 (CF.sub.2).sub.k --X.sup.9 --O--X.sup.10 -- (6)
- wherein k is an integer of from 0 to 17, and each of X.sup.9 and X.sup.10 independently is a C.sub.1-10 alkylene group.
- 6. The method for stainproofing a heat fixing roller according to claim 2, wherein the fluorosilicone compound is of the formula (7): ##STR7## wherein R.sup.10 is a lower alkyl group, each of R.sup.11 to R.sup.13 independently is a lower alkyl group or a monovalent aromatic hydrocarbon group, a is an integer of at least 1, b is an integer of 0 or at least 1, and R.sub.f.sup.14 is a monovalent fluorine-containing group selected from the formulae (1) to (3).
- 7. The method for stainproofing a heat fixing roller according to claim 2, which is used for a heat fixing roller having a silicone rubber surface or a fluorine resin surface.
- 8. The method for stainproofing a heat fixing roller according to claim 2, wherein the heat fixing roller is a heat fixing roller for a copy machine or a printing machine.
Priority Claims (3)
Number |
Date |
Country |
Kind |
5-235664 |
Aug 1993 |
JPX |
|
6-074973 |
Apr 1994 |
JPX |
|
6-166952 |
Jul 1994 |
JPX |
|
Parent Case Info
This application is a Division of application Ser. No. 08/296,246, filed on Aug. 25, 1994, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2716203 |
Oct 1977 |
DEX |
5-97870 |
Apr 1993 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
296246 |
Aug 1994 |
|