Amorphous polyether glycols based on bis-substituted oxetane monomers
AssigneeAerojet-General Corporation
InventorsAslam A. Malik, Thomas G. Archibald, Roland P. Carlson, Kenneth J. Wynne, Edward N. Kresge
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Abstract
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.
Claims82
A hydroxy-terminated FOX prepolymer comprising a monomeric unit having the general formula:
- 22
- wherein:
- each n is independently selected and is 1 to 3;
- Rf1 and Rf2 are independently selected from the group consisting of linear perfluorinated alkyls, linear perfluorinated isoalkyls, branched chain perfluorinated alkyols, branched perfluorinated isoalkyls, said perfluorinated alkyls and isoalkyls having from 1 to about 20 carbon atoms, and oxaperfluorinated polyethers having from 4 to about 60 carbon atoms;
- and
- x is 1 to about 250;
- with the proviso that Rf1 and Rf2 are different.
A hydroxy-terminated FOX coprepolymer comprising a mixture of monomeric units having the general formulae:
- 23
- wherein:
- each n is independently selected and is 1 to 3;
- R is selected from the group consisting of methyl and ethyl;
- Rf1, Rf2 and Rf3 are independently selected from the group consisting of linear fluorinated alkyls, linear fluorinated isoalkyls, branched chain fluorinated alkyls, branched fluorinated isoalkyls, said fluorinated alkyls and isoalkyls having from 1 to 20 carbon atoms, and oxaperfluorinated polyethers having from 4 to about 60 carbon atoms;
- x is 1 to about 250;
- and
- y is 1 to about 250.
A hydroxy-terminated FOX/THF coprepolymer comprising a mixture of monomeric units having the general formulae:
- 24
- wherein:
- n is independently selected and is 1 to 3;
- Rf1 and Rf2 are independently selected from the group consisting of linear perfluorinated alkyl groups having 1-20 carbons, branched perfluorinated alkyl groups having 1-20 carbons and oxaperfluorinated polyethers having from about 4-60 carbons;
- x is 1-250;
- and
- z is 1-250.
A hydroxy-terminated FOX/THF coprepolymer comprising a mixture of monomeric units having the general formulae:
- 25
- wherein:
- each n is independently selected and is 1 to 3;
- R is selected from the group consisting of methyl and ethyl;
- Rf1, Rf2 and Rf3 are independently selected from the group consisting of linear perfluorinated alkyl groups having 1-20 carbons, branched perfluorinated alkyl groups having 1-20 carbons and oxaperfluorinated polyethers having from about 4-60 carbons;
- x is 1-250;
- y is 1-250;
- and
- z is 1-250.
A fluorinated polyurethane elastomer comprising a mixture of monomeric units having the general formulae:
- 26
- wherein:
- n is independently selected and is 1 to 3;
- Rf1 and Rf2 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;
- R1 is a divalent hydrocarbyl radical;
- x is 1-250;
- and
- w is 1-50;
- with the proviso that Rf1 and Rf2 are different.
A fluorinated polyurethane elastomer comprising a mixture of monomeric units having the general formulae:
- 27
- wherein:
- n is independently selected and is 1 to 3;
- R is selected from the group consisting of methyl and ethyl;
- Rf1, Rf2 and Rf3 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;
- R1 is a divalent hydrocarbyl radical;
- x is 1-250;
- y is 1-250;
- and
- w is 1-100.
A fluorinated polyurethane elastomer having FOX/THF segments and comprising a mixture of monomeric units having the general formulae:
- 28
- wherein:
- n is independently selected and is 1 to 3;
- Rf1 and Rf2 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;
- R1 is a divalent hydrocarbyl radical;
- x is 1-250;
- z is 1-250;
- and
- w is 1-250.
A fluorinated polyurethane elastomer comprising a mixture of monomeric units having the general formulae:
- 29
- wherein:
- n is independently selected and is 1 to 3;
- R is selected from the group consisting of methyl and ethyl;
- Rf1, Rf2 and Rf3 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;
- R1 is a divalent hydrocarbyl radical;
- x is 1-250;
- y is 1-250;
- z is 1-250;
- and
- w is 1-50.
A bis-substituted fluorinated oxetane monomer, said bis-substituted fluorinated oxetane monomer having the general formula:
- 30
- wherein:
- each n is independently selected and is 1 to 3;
- and
- Rf1 and Ff2 are independently selected from the group consisting of linear perfluorinated alkyl, linear perfluorinated isoalkyl, branched chain perfluorinated alkyl, branched chain perfluorinated isoalkyl, and oxaperfluorinated polyether having from 4 to about 60 carbons, said linear and branched alkyls and isoalkyls having from 1 to 20 carbons;
- with the proviso that Rf1 and Ff2 are different.
Dependencies are inferred from the claim text.