Amorphous polyether glycols based on bis-substituted oxetane and tetrahydrofuran monomers
View Patent ↗This invention is directed to mono- and bis-substituted oxetane monomers having fluorinated alkoxymethylene side chains, hydroxy-terminated prepolymers derived from these mono- and bis-substituted oxetane monomers and tetrahydrofuran (THF), and polymers produced from these prepolymers, as well as the synthesis processes associated with each, and the use of the monomers, prepolymers and ultimate polymers, both directly and as components of numerous compositions.
1. A fluorinated polyurethane elastomer comprising a mixture of monomeric units having the general formulae:
wherein:
n is independently selected and is 1 to 3;
R f 1 and R f 2 are independently selected from the group consisting of linear and branched perfluorinated alkyls having 1–20 carbon atoms, and oxaperfluorinated polyethers having from about 4–20 carbon atoms;
R 1 is a divalent hydrocarbyl radical;
x is 1–250; and
w is 1–50;
with the proviso that R f 1 and R f 2 are different.
2. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein R f 1 and R f 2 are linear perfluorinated alkyls.
3. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein said isocyanate segment is selected from the group consisting of hexamethylene diisocyanate (HDI), isopherone diisocyanate (IPDI), 4,4-methylene diphenylisocyanate (MDI), polymeric MDI (Isonates), toluene diisocyanates, saturated MDI (HMDI), polymeric HDI (N-100 and N-3200), trimethylhexane diisocyanate and mixtures thereof.
4. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein the fluorinated polyether segment is produced from at least one bis-substituted FOX monomer selected from the group consisting of 3-(2,2,2-trifluoroethoxymethyl)-3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane, 3-(2,2,2-trifluoroethoxymethyl)-3-(3,3,4,4,5,5,6,6,7,7,8,8,8-trifluorooctyloxymethyl)oxetane, 3-(2,2,3,3,4,4,4-heptafluoro-butoxymethyl)-3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane, 3-(2,2,2-trifluoroethoxymethyl)-3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoro-decyloxymethyl)oxetane and 3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-3-(3,3,4,4,5,5,-6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-heneicosafluorodedecyloxymethyl)oxetane.
5. A fluorinated polyurethane elastomer in accordance with claim 4 , wherein said bis-substituted FOX monomer is 3-(2,2,2-trifluoroethoxymethyl)-3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane 3,3-(2,2,2-trifluoroethoxymethyl)-oxetane.
6. A fluorinated polyurethane elastomer in accordance with claim 4 , wherein said bis-substituted FOX monomer is 3-(2,2,2-trifluoroethoxymethyl)-3-(3,3,4,4,5,5,6,6,7,7,8,8,8-trifluorooctyloxymethyl)oxetane.
7. A fluorinated polyurethane elastomer in accordance with claim 4 , wherein said bis-substituted FOX monomer is 3-(2,2,3,3,4,4,4-heptafluorobutoxy-methyl)-3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane.
8. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein said fluorinated polyurethane elastomer is a fluorinated thermoset polyurethane elastomer.
9. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein said fluorinated polyurethane elastomer is a fluorinated thermoplastic polyurethane elastomer.
10. A fluorinated polyurethane elastomer comprising a mixture of monomeric units having the general formulae:
wherein:
n is independently selected and is 1 to 3;
R is selected from the group consisting of methyl and ethyl;
R f 1 , R f 2 and R f 3 are independently selected from the group consisting of linear and branched perfluorinated alkyls having 1–20 carbon atoms, and oxaperfluorinated polyethers having from about 4–20 carbon atoms;
R 1 is a divalent hydrocarbyl radical;
x is 1–250;
y is 1–250; and
w is 1–100.
11. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said fluorinated polyurethane elastomer is a fluorinated thermoset polyurethane elastomer.
12. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said fluorinated polyurethane elastomer is a fluorinated thermoplastic polyurethane elastomer.
13. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein R f 1 , R f 2 and R f 3 are linear perfluorinated alkyls.
14. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein R f 1 and R f 2 are the same.
15. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein R f 1 and R f 2 are different.
16. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said isocyanate segment is selected from the group consisting of hexamethylene diisocyanate (HDI), isopherone diisocyanate (IPDI), 4,4-methylene diphenylisocyanate (MIDI), polymeric MDI (Isonates), toluene diisocyanates, saturated MDI (HMDI), polymeric HDI (N-100 and N-3200), trimethylhexane diisocyanate and mixtures thereof.
17. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said bis-substituted FOX monomer is selected from the group consisting of 3,3-(2,2,2-trifluoroethoxymethyl)oxetane, 3,3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-oxetane, 3,3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane, 3,3-(3,3,4,4,-5,5,6,6,7,7,8,8,8-trideca-fluorooctyloxymethyl)oxetane, 3,3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyloxymethyl)oxetane, 3,3-(3,3,4,4,5,5,6,6,-7,7,8,8,9,9,10,10,11,11,12,12,12-heneicosafluorododecyloxymethyl)oxetane, 3-(2,2,2-trifluoroethoxymethyl)-3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane, 3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane and mixture thereof.
18. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said mono-substituted FOX monomer selected from the group consisting of 3-(2,2,2-trifluoroethoxymethyl)-3-methyloxetane, 3-(2,2,3,3,4,4,4-heptafluorobutoxy-methyl)-3-methyloxetane, 3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxy-methyl)-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-heptadecafluorodecyloxy-methyl)-3-methyloxetane, 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 and mixtures thereof.
19. A fluorinated polyurethane elastomer in accordance with claim 17 , wherein said bis-substituted FOX monomer is selected from the group consisting of 3,3-(2,2,2-trifluoroethoxymethyl)oxetane, 3,3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-oxetane, 3,3-(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyloxymethyl)oxetane and 3-(2,2,2-trifluoroethoxymethyl)-3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane.
20. A fluorinated thermoset polyurethane elastomer in accordance with claim 18 , wherein said mono-substituted FOX monomer is selected from the group consisting of 3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-3-methyloxetane, 3-(2,2,2-trifluoroethoxymethyl)-3-methyloxetane and 3-(2,2,2-trifluoroethoxy-methyl)-3-methyloxetane.