Claims
- 1. Oligomeric glycols having a number average molecular weight in the range between about 650 and about 5000 which can be represented by the general formula: ##STR6## wherein R is a divalent radical of the formula: ##STR7##
- 2. The oligomeric glycols of claim 1 having a number average molecular weight between about 1000 and about 3000.
- 3. The oligomeric glycols of claim 2 wherein R.sub.f is a mixture of perfluoroalkyl groups, CF.sub.3 CF.sub.2 (CF.sub.2).sub.m in which m is 2, 4, 6, 8 and 10 in the approximate weight ratio of 0.3/61.4/31.8/6/0.3.
- 4. The oligomeric glycols of claim 1 wherein x is 0 to 10.
- 5. The oligomeric glycols of claim 1 wherein x is 1 to 20.
- 6. The oligomeric glycols of claim 1 wherein n is 2 to 5.
- 7. Oligomeric glycols having a number average molecular weight in the range between 1500 and about 2000 which can be represented by the general formula: ##STR8## wherein ##STR9## R.sub.f is a straight or branched chain perfluoroalkyl radical containing 4 to 12 carbon atoms or mixtures of said radicals;
- x is 0 to 20;
- y is 0 to 10;
- n is 2 to 10; and
- z is 0 or 1.
- 8. The oligomeric glycols of claim 7 wherein x is 1 to 20.
- 9. The oligomeric glycols of claim 8 wherein y is 0.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 07/349,980 filed May 8, 1989 which is a continuation-in-part of Ser. No. 07/163,037 filed Mar. 7, 1988 both now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4427803 |
Fukui et al. |
Jan 1984 |
|
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Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
349980 |
May 1989 |
|
Parent |
163037 |
Mar 1988 |
|