Claims
- 1. As a composition of matter, a polyfluorinated diisocyanate having the formula OCN--CH.sub.2 CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --NCO, wherein n is a whole number of from 2 to 16, inclusive.
- 2. A composition of matter in accordance with claim 1 in which n is 4, 6, 8 or 10.
- 3. As a composition of matter, a polyfluorinated monoisocyanate having the formula F(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --NCO, wherein n is a whole number of from 1 to 20, inclusive.
- 4. A composition of matter in accordance with claim 3 in which n is 10.
- 5. A fluorinated polyurethane composition comprising the polymerization product of at least one compound selected from the group consisting of polyfluorinated diisocyanates having the formula OCN--CH.sub.2 CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --NCO, wherein n is a whole number of from 2 to 16, inclusive, and at least one diol.
- 6. A fluorinated polyurethane composition in accordance with claim 5 in which said at least one diol is selected from the group consisting of polyfluorinated diols having the formula HO--CH.sub.2 CH.sub.2 --(CF.sub.2).sub.n --CH.sub.2 CH.sub.2 --OH, wherein n is a whole number of from 1 to 20, inclusive.
- 7. A fluorinated polyurethane composition in accordance with claim 6 in which the polyfluorinated diisocyanates are those wherein n is 4, 6, 8 or 10, respectively.
- 8. A fluorinated polyurethane composition in accordance with claim 7 in which the polyfluorinated diols are those wherein n is 2, 4, 6 or 8, respectively.
- 9. A fluorinated polyurethane composition in accordance with claim 8 in which the at least one polyfluorinated diisocyanate compound is 3,3,4,4,5,5,6,6-octafluorooctane-1,8-diisocyanate and the at least one polyfluorinated diol is 1,8-dihydroxy-3,3,4,4,5,5,6,6-octofluorooctane.
- 10. A fluorinated polyurethane composition in accordance with claim 8 in which the at least one polyfluorinated diisocyanate compound is 3,3,4,4,5,5,6,6,7,7,8,8-dodecafluorodecane-1,10-diisocyanate and the at least one polyfluorinated diol is 1,8-dihydroxy-3,3,4,4,5,5,6,6-octofluorooctane.
- 11. A fluorinated polyurethane composition in accordance with claim 8 in which the at least one polyfluorinated diisocyanate compound is 3,3,4,4,5,5,6,6-octofluorooctane-1,8-diisocyanate and the at least one polyfluorinated diol is 1,6-dihydroxy-3,3,4,4-tetrafluorohexane.
- 12. A fluorinated polyurethane composition in accordance with claim 8 in which the at least one polyfluorinated diisocyanate compound is 3,3,4,4,5,5,6,6,7,7,8,8-dodecafluorodecane-1,10-diisocyanate and the at least one polyfluorinated diol is 1,10-dihydroxy-3,3,4,4,5,5,6,6,7,7,8,8-dodecafluorodecane.
- 13. A fluorinated polyurethane composition in accordance with claim 8 in which the at least one polyfluorinated diisocyanate compound is 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-hexadecafluorododecane-1,12-diisocyanate and the at least one polyfluorinated diol is 1,12-dihydroxy-3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10-hexadecafluorodecane.
Government Interests
The Government has rights in this invention pursuant to Contracts N00014-84-C-0388 and N00014-88-C-0150 awarded by the Department of the Navy.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3657306 |
Murray |
Apr 1972 |
|