Claims
- 1. A perfluorinated polyether having an average formula: ##STR32## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and are selected from the group consisting of --F, --Cl, --CF.sub.2 Cl, --CFCl.sub.2, --CCl.sub.3, perfluoroalkyl of one to ten carbon atoms and perfluoroalkoxyalkyl of one to ten carbon atoms wherein one or more of the fluorine atoms can be substituted by a halogen atom other than fluorine; wherein X and Z are the same or different and are selected from the group consisting of --(CF.sub.2).sub.r COF, --(CF.sub.2).sub.r OCF.sub.3, --(CF.sub.2).sub.r COOH and --C.sub.r F.sub.2r+1-q Cl.sub.1, wherein r is an integer from 1 to 12 and q is an integer from 0 to 25; p is an integer from 1 to 50, provided that the polyether includes at least one halogen atom other than fluorine.
- 2. The perfluorinated polyether of claim 1 wherein at least one of R.sub.1, R.sub.2 and R.sub.3 contains a halogen atom other than fluorine and p is an integer between 2 and 50.
- 3. A perfluorinated polyether having an average formula: ##STR33## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and are selected from the group consisting of --F, --Cl, --CF.sub.2 Cl, --CFCl.sub.2, --CCl.sub.3, perfluoroalkyl of one to ten carbon atoms and perfluoroalkoxyalkyl of one to ten carbon atoms wherein one or more of the fluorine atoms can be substituted by a halogen atom other than fluorine; wherein X and Z are --(CF.sub.2).sub.r OCF.sub.3 wherein r is an integer from 1 to 12 and q is an integer from 0 to 25; p is an integer from 1 to 50, provided that the polyether includes at least one halogen atom other than fluorine.
- 4. A perhalogenated polyether having an average formula: ##STR34## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and are selected from the group consisting of --F, --Cl, --CF.sub.2 Cl, --CFCl.sub.2, --CCl.sub.3, perfluoroalkyl of one to ten carbon atoms and perfluoroalkoxyalkyl of one to ten carbon atoms; wherein X and Z are --(CF.sub.2).sub.r COOH wherein r is an integer from 1 to 12 and q is an integer from 0 to 25; p is an integer from 1 to 50, provided that the polyether includes at least one halogen atom other than fluorine.
- 5. A perhalogenated polyether having an average formula: ##STR35## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and are selected from the group consisting of --F, --Cl, --CF.sub.2 Cl, --CFCl.sub.2, --CCl.sub.3, perfluoroalkyl of one to ten carbon atoms and perfluoroalkoxyalkyl of one to ten carbon atoms; wherein X and Z are --C.sub.r F.sub.2r+1-q Cl.sub.q wherein r is an integer from 1 to 12 and q is an integer from 0 to 25; p is an integer from 1 to 50, provided that the polyether includes at least one halogen atom other than fluorine.
RELATED PATENT APPLICATIONS
This application is a division of application Ser. No. 08/222,797 filed Apr. 5, 1994, now allowed, which is a continuation of U.S. patent application Ser. No. 07/966,681, filed Oct. 26, 1992, which issued as U.S. Pat. No. 5,300,683 on Apr. 5, 1994, which is a continuation of U.S. patent application Ser. No. 07/752,703, filed Aug. 30, 1991, which issued as U.S. Pat. No. 5,202,480 on Apr. 13, 1993, which is a continuation of U.S. patent application Ser. No. 07/413,785, filed on Sep. 28, 1989, which issued as U.S. Pat. No. 5,053,536 on Oct. 1, 1991, which is a continuation-in-part of U.S. patent application Ser. No. 07/250,384, filed on Sep. 28, 1988, now abandoned, all of which are incorporated herein by their entirety.
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Divisions (1)
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222797 |
Apr 1994 |
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Continuations (3)
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966681 |
Oct 1992 |
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752703 |
Aug 1991 |
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413785 |
Sep 1989 |
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Continuation in Parts (1)
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250384 |
Sep 1988 |
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