초록 ▼

Fluorovinyl ethers having the formula CFX═CXOCF2OR, wherein R is a C2-C6 linear, branched or C5-C6 cyclic (per) fluoroalkyl group, or a C2-C6 linear, branched (per)fluoro oxyalkyl group containing from one to three oxygen atoms; when R is fluoroalkyl or fluorooxyalkyl group as above defined, i

Fluorovinyl ethers having the formula CFX═CXOCF2OR, wherein R is a C2-C6 linear, branched or C5-C6 cyclic (per) fluoroalkyl group, or a C2-C6 linear, branched (per)fluoro oxyalkyl group containing from one to three oxygen atoms; when R is fluoroalkyl or fluorooxyalkyl group as above defined, it can contain from 1 to 2 atoms, equal or different, selected from the following: H, Cl, Br, I; X═F, H; and homopolymers or polymers obtainable polymerizing said Fluorovinyl ethers with at least another polymerizable monomer.

대표청구항 ▼

I claim: 1. A polymer obtained by the polymerization, alone or in combination with one or more copolymerizable comonomers, of a fluorovinyl ether of the formula: CFX═CXOCF2OCF2CF3 wherein X is F or H, and wherein the polymer is an amorphous polymer, and said fluorovinyl ether is present i

I claim: 1. A polymer obtained by the polymerization, alone or in combination with one or more copolymerizable comonomers, of a fluorovinyl ether of the formula: CFX═CXOCF2OCF2CF3 wherein X is F or H, and wherein the polymer is an amorphous polymer, and said fluorovinyl ether is present in an amount of more than 10 mole percent. 2. The polymer of claim 1 wherein the fluorovinyl ether is copolymerized with one more comonomers that is a fluorinated compound having at least one polymerizable carbon-carbon double bond. 3. The polymer of claim 2 wherein the fluorinated compound further comprises at least one atom selected from the group consisting of hydrogen, chlorine, bromine, iodine, and oxygen. 4. The polymer of claim 1 wherein the fluorovinyl ether is copolymerized with one or more comonomers that is a C2-C8 olefinically unsaturated hydrocarbon. 5. The polymer of claim 1 wherein the fluorovinyl ether is copolymerized with one or more comonomers selected from the group consisting of: (a) a C2-C8 perfluoroolefin; (b) a C2-C8 fluoroolefin; (c) a C2-C8 chlorofluoroolefin, a C2-C8 bromochloroolefin, and a C2-C8 iodofluoroolefin; (d) a fluoroalkyl vinyl ether, having the structure CF2═CFOR2f, wherein R2f is a C1-C6 perfluoroalkyl group in which 0 or 1 of the fluorine atoms is replaced with an atom selected from bromine or chlorine; (e) a perfluorooxyalkylvinyl ether of structure CF2═CFOXa wherein Xa is selected from a C1-C12 alkyl group, a C1-C12 oxyalkyl group, and a C1-C12 fluorooxyalkyl group having at least one ether oxygen; and (f) a sulphonic monomer having the structure CF2═CFOXbSO2F, wherein Xb is CF2CF2, CF2CF2CF2, or CF2CF(CF2Xc), and wherein Xc is selected from F, Cl, and Br. 6. The polymer of claim 5 wherein the fluorovinyl ether is copolymerized with a perfluoroolefin selected from the group consisting of a tetrafluoroethylene (TFE), a hexafluoropropene (HFP), and a hexafluoroisobutene. 7. The polymer of claim 5 wherein the fluorovinyl ether is copolymerized with a fluoroolefin selected from the group consisting of a vinyl fluoride (VF), a vinylidene fluoride (VDF), a trifluoroethylene, a chlorotrifluoroethylene (CTFE), a bromotrifluoroethylene, and a fluoroolefin of structure CH2═CH--R2f, wherein R2f is a C1-C6 perfluoroalkyl group. 8. The polymer of claim 5 wherein the fluorovinyl ether is copolymerized with a fluoroalkyl vinyl ether having the structure CF2═CFOR2f wherein R2f is selected from the group consisting of a trifluoromethyl group, a bromodifluoromethyl group, and a heptafluoropropyl group. 9. The polymer of claim 5 wherein the fluorovinyl ether is copolymerized with a fluoroalkyl vinyl ether, having the structure CF2═CFOR2f wherein R2f is a C1-C6 perfluoroalkyl group that is a perfluoro-2-propoxypropyl group. 10. The polymer of claim 1 wherein the amount of the fluorovinyl ether polymerized is between about 10 mole % and about 20 mole %, the remainder comprising the one or more copolymerizable comonomers. 11. The polymer of claim 10 wherein the amount of the fluorovinyl ether polymerized is between about 15 mole % and about 20 mole %, the remainder comprising the one or more copolymerizable comonomers. 12. The polymer of claim 1 wherein the polymer is elastomeric. 13. The polymer of claim 1 wherein the polymer is plastomeric. 14. A fluoroelastomer according to claim 1, comprising units derived from fluorovinyl ethers of formula CF2═CFOCF2OCF2CF3. 15. The fluoroelastomer of claim 14 further comprising in the polymer chain, units derived from either: 1) a vinylidene fluoride and at least one additional copolymerizable comonomer selected from a C2-C8 perfluoroolefin; a C2-C8 chlorofluoroolefin; a C2-C8 bromofluoroolefin; a C2-C8 iodofluoroolefin; a fluoroalkyl vinyl ether of structure CF2═CFORtf, wherein Rtf is a C1-C6 alkyl group in which from one up to all hydrogen atoms are replaced with fluorine atoms; a perfluorooxyalkyl vinyl ether of structure CF2═CFOXt, wherein Xt is a C1-C12 perfluorooxyalkyl group having one or more ether oxygens; and a C2-C8 olefin; or 2) a tetrafluoroethylene and at least one additional copolymerizable comonomer selected from a fluoroalkyl vinyl ether of structure CF2═CFORtf, wherein Rtf is as above defined; a perfluorooxyalkyl vinyl ether of structure CF2═CFOXt, wherein xt is as above defined; a C2-C8 fluoroolefin; a chlorofluoroolefin; a bromofluoroolefin; a iodofluoroolefin; and a C2-C8 olefin.