Claims
- 1. A fluorinated thermoset polyurethane elastomer having random FOX/THF segments and having the structure, ##STR14## where: a) n is 1-3;
- b) R is selected from the group consisting of methyl and ethyl;
- c) R.sub.f is selected from the group consisting of linear and branched perfluorinated alkyls having 1-20 carbons, and oxaperfluorinated polyethers having from about 4-20 carbons;
- d) R.sup.1 is a divalent hydrocarbyl radical;
- e) X is 1-20;
- f) Y is 10-150;
- g) Z is 2-50.
- 2. A fluorinated thermoset polyurethane elastomer as in claim 1 wherein said isocyanate segments are selected from the group consisting of hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), 4,4'-methylene diphenylisocyanate (MDI), polymeric MDI, toluene diisocyanates, hydrogenated MDI (HMDI), polymeric HDI, trimethylhexane diisocyanate and mixtures thereof.
- 3. A fluorinated thermoset polyurethane elastomer as in claim 2 wherein said fluorinated polyether segment is produced from at least one monomer selected from the group consisting of 3-(2,2,3,3,4,4,5-heptafluorobutoxymethyl)-3-methyloxetane, 3-(2,2,2-trifluoroethoxymethyl)-3-methyloxetane, 3-(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyloxymethyl)-3-methyloxetane, 3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorooctyloxymethyl(-3-methyloxetane, and 3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-heneicosafluorododecyloxymethyl)-3-methyloxetane.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a Divisional Application of application of the same title, Ser. No. 08/371,914, filed by us on Jan. 12, 1995, now abandoned. That application in turn is a Continuation-In-Part of the application entitled "Preparation and Polymerization of Perfluoroalkoxy Alkylene Oxides to Prepare Hydrophobic Ethers", Ser. No. 08/206,618, filed Mar. 7, 1994, now abandoned, which in turn is a Continuation application of that same title, Ser. No. 08/080,614, filed Jun. 21, 1993, now abandoned, which in turn is a Continuation-In-Part application of that same title, Ser. No. 07/911,461 filed Jul. 10, 1992, now abandoned. This application is related to the application of that same title, Ser. No. 08/206,859, filed Mar. 7, 1994, now abandoned, which in turn is a continuation of the application of that same title, Ser. No. 07/911,461, filed Jul. 10, 1992, now abandoned. This application is also related to Divisional Applications of the same title Ser. No. 08/477,168, now abandoned and Ser. No. 08/483,219, filed Jun. 7, 1995. The subject matter of each is incorporated by reference herein to the extent need be.
US Referenced Citations (32)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0348350A1 |
Dec 1989 |
EPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
371914 |
Jan 1995 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
80614 |
Jun 1993 |
|
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
206618 |
Mar 1994 |
|
Parent |
911461 |
Jul 1992 |
|