Abstract: This invention pertains to fluoroallylsulfonyl azide compounds of formula: CF2?CF—CF2—Rf—SO2N3 formula (I) wherein Rf is a divalent (per)fluorinated group, optionally comprising one or more than one ethereal oxygen atom [monomer (Az)], which are useful as functional monomers in fluoropolymers, to the fluoropolymers which comprise recurring units derived from such fluoroallylsulfonyl azide compounds, to a process for their manufacture, to a curable compound comprising the same and to a method for crosslinking the same.

Abstract: A process for the preparation of fluorinated compounds having at least one —OSF5 group, said method comprising the step of reacting SOF4 with a fluorinated 3- or 4-membered cyclic ether in the presence of a fluoride catalyst.

Abstract: The present invention relates to crosslinkable compositions comprising vinylidene fluoride (VDF)/trifluoroethylene (TrFE) polymers and a fluorine-containing crosslinking agent of formula (A) [agent (Cz)]: {N3[S(O)g1]s1}na—(RH)nh—Rf—(R?H)nh?—{[S(O)g2]s2N3}na?, formula (A) wherein each of g1 and g2, equal to or different from each other, is 1 or 2, each of s1 and s2, equal to or different from each other, is 0 or 1, each of na and na? is independently zero or an integer of 1 to 3, provided that the sum na+na? is at least 2, each of RH and R?H, equal to or different from each other, is a C1-C12 hydrocarbon group free of fluorine atoms, nh and nh?, equal or different from each other are independently 0 or 1, and Rf is selected from the group consisting of i) a C3-C20 fluorocarbon group, possibly comprising one or more ethereal oxygen atoms, ii) an oligomer comprising copolymerized units of vinylidene fluoride and trifluoroethylene, to a process for the manufacture of said compositions, to a method for curing the

Abstract: A process for the preparation of fluorinated compounds having at least one —OSF5 group, said method comprising the step of reacting SOF4 with a fluorinated 3- or 4-membered cyclic ether in the presence of a fluoride catalyst.

Abstract: The invention relates to a process for the manufacture of a-iodoperfluoroalkanes and ?,?-diiodoperfluoroalkanes of general formula: (1) A(C2F4)n1, wherein: A is selected from F, CF3 and I and n is an integer equal to or higher than 1, with the proviso that, when A is F, n is an integer higher than 1 said process comprising heating a mixture [mixture (M1)] containing: —a compound selected from I2, CF3I, CF3CF2I and C2F4I2; —TFE; —and CO2 at definite temperatures and concentrations of CO2.

Abstract: The present invention relates to processes for the manufacture of 1,2,3,4-tetrachloro-hexafluoro-butane in a microreactor.

Abstract: The invention pertains to a fluoroelastomer composition [composition (C)] comprising:—at least one fluoroelastomer [fluoroelastomer (A)];—at least one basic compound [base (B)];—at least one pyridinium-type salt [salt (P)] having at least two groups in ortho or para position to the quaternized nitrogen bearing a reactive hydrogen atom.

Abstract: A process for the preparation of the fluoroalkyl sulfonate salt of a nitrogen-based organic base said process comprising the step of reacting a fluoroalkyl sulfonyl halide with an organic base selected from the group consisting of tertiary amines, pyridines, amidines and guanidines.

Abstract: The invention pertains to a process for the manufacture of a perfluorovinylether by hydrodehalogenation of a halofluoroether (HFE) having general formula (I-A) or (I-B): RfO—CRf?X—CRf?Rf??X???(I-A) wherein Rf represents a C1-C6 perfluoro(oxy)alkyl group; Rf?, Rf? and Rf??, equal or different from each other, independently represent fluorine atoms or C1-C5 perfluoro(oxy)alkyl groups; X and X?, equal or different from each other, are independently chosen among Cl, Br or I; wherein Rf* and Rf*?, equal or different from each other, independently represent fluorine atoms or C1-C3 perfluoro(oxy)alkyl groups; Y1 and Y2, equal or different from each other, independently represent fluorine atoms or C1-C3 perfluoroalkyl groups; X and X? are as above defined; said process comprising contacting said halofluoroether (HFE) with hydrogen in the presence of a catalyst comprising palladium and at least one transition metal (M) selected from the group consisting of the metals of group VIIIB, other than palladium, and o

Abstract: The present invention pertains to a composition comprising: (I) at least one ionic liquid of formula (1-a) or of formula (1-b): [RF-CFR?F-SO3]? A+ (1-a) [(RF-CFR?F—SO2)2N]? (1-b) wherein: -RF is a C1-C25 fluoroalkyi group, optionally comprising one or more than one catenary ethereal oxygen atoms, -R?F is —F or a —CF3 group, and -A+ is an organic cation selected from the group consisting of tetraalkylammonium, pyridinium, imidazolium, piperidinium, pyrrolidinium, amidinium and guanidinium groups, and (II) at least one metal salt of formula (II): MeB, (H) wherein: -Mem+ is a metal cation deriving from a metal (Me) selected from the group consisting of groups IB, MB, IVB, VB, VIB, MIA, IVA and VIII (8, 9, 10) of the Periodic Table, preferably from the group consisting of groups IVB, VB, VIB and IMA of the Periodic Table, wherein m is the valence of said metal cation, and —Bn? is an inorganic anion, wherein n is the valence of said inorganic anion.

Abstract: The invention pertains to a method for making a fluoropolymer comprising an aqueous emulsion polymerization of one or more fluorinated monomers wherein said aqueous emulsion polymerization is carried out in the presence of at least one cyclic fluorocompound of the following formula (I): wherein X1, X2, X3, equal or different from each other are independently selected among H, F, and C1-6 (per)fluoroalkyl groups, optionally comprising one or more catenary or non-catenary oxygen atoms; L represents a bond or a divalent group; RF is a divalent fluorinated C1-3 bridging group; Y is a hydrophilic function selected among anionic functionalities, cationic functionalities and non-ionic functionalities.

Abstract: The present invention pertains a fluoropolymer [polymer (F)] comprising: —recurring units derived from at least one ethylenically unsaturated fluorinated monomer [monomer (FM)]; —from 5% to 60% by moles [with respect to the total moles of recurring units of polymer (F)] of recurring units derived at least one ethylenically unsaturated fluorinated monomer containing at least one —SO2F functional group [monomer (IO)]; and —from 0.01% to 10% by moles [with respect to the total moles of recurring units of polymer (F)] of recurring units derived from at least one monomer comprising an azide group [monomer (Az)], to a process for its manufacture, to a cross-linkable composition comprising the same, to a process for cross-linking the same and to articles comprising the cross-linked polymer.

Abstract: The invention relates to a process for the manufacture of a-iodoperfluoroalkanes and ?,?-diiodoperfluoroalkanes of general formula: (1) A(C2F4)n1, wherein: A is selected from F, CF3 and I and n is an integer equal to or higher than 1, with the proviso that, when A is F, n is an integer higher than 1 said process comprising heating a mixture [mixture (M1)] containing: —a compound selected from I2, CF3I, CF3CF2I and C2F4I2; —TFE; —and CO2 at definite temperatures and concentrations of CO2.

Abstract: A compound of formula CF2?CFCF2OSF5 and polymers comprising recurring units deriving from CF2?CFCF2OSF5 are disclosed as well as processes for their preparation.

Abstract: A catalytic process for the synthesis of trifluoroethylene from chlorotrifluoroethylene which comprises contacting chlorotrifluoroethylene with hydrogen in the presence of a catalyst consisting of palladium or platinum supported on extruded activated carbon.

Abstract: A process for fluorinating hydrocarbon compounds, which comprises: A. providing a compound selected from the group consisting of straight-chain, branched-chain and cyclic alkanes, straight-chain, branched-chain and cyclic ethers, said compound comprising at least one carbon-hydrogen bond and being free from —C(O)— functional groups; B. reacting said compound with fluorine in the presence of at least one (per)haloolefin comprising at least one carbon-carbon double bond and having at least one fluorine or chlorine atom on either one of the carbon atoms of said double bond, to obtain a compound wherein at least one carbon-hydrogen bond has been replaced by a carbon-fluorine bond. Compositions of partially fluorinated compounds obtained with the process are also disclosed.

Abstract: The present invention provides a fluorinated ionomer [polymer (I)] comprising recurring units derived from at least the following monomers: (i) 5 to 50% by weight of a fluorinated monomer [monomer (A)] containing at least one —SO2X functionality, preferably having the formula of CF2?CF—O—(CF2CF(CF3)O)m—(CF2)mSO2X (I) wherein m is 0 or 1, n is an integer between 0-10, and X is selected from F, OH, and O?Me+, wherein Me+ indicates an alkali metal ion or an ammonium cation of formula NR4? where each R independently represents a hydrogen atom or a monovalent organic radical selected from aliphatic radicals having from 1 to 8 carbon atoms and arylic or alicyclic radicals having from 3 to 8 carbon atoms; (ii) a non-functional fluorinated monomer [monomer (B)] having at least one ethylene unsaturation; and (iii) a fluorinated polyfunctional compound having the general formula: (CR1R2?CFCF2—O)a—Rf—((O)c—CF?CR3R4)b (II) wherein: a is an integer equal to or larger than 1, preferably a is 1, 2, or 3; b is 0 or 1 and the

Abstract: A process for the preparation of the fluoroalkyl sulfonate salt of a nitrogen-based organic base said process comprising the step of reacting a fluoroalkyl sulfonyl halide with an organic base selected from the group consisting of tertiary amines, pyridines, amidines and guanidines.

Abstract: A process for the manufacture of a perfluorooxycarboxylate of formula (I): RfO—CF2CF2—O—CF2—COOXa (I), wherein Rf is a perfluoro(oxy)alkyl group, and Xa is H, a monovalent metal or an ammonium group of formula NRN4, with RN, equal or different at each occurrence, being H or a C1-6 hydrocarbon group, said process comprising: (A) reacting a perfluorovinylether of formula Rf—O—CF?CF2 with an ethylene glycol derivative selected among ethylene glycol (HO—CH2CH2—OH), glycolic acid (HO—CH2—COOH), glycolaldehyde (HO—CH2—CHO) and protected derivatives thereof, so as to yield the corresponding addition product of formula Rf—O—CFH—CF2—O—CH2-E, and E being selected among —CH2OH, —COOH and —CHO; (B) optionally protecting functional group E with suitable chemistry; (C) fluorinating the (protected) addition product to yield the corresponding perfluorinated addition product; (D) optionally deprotecting the perfluorinated addition product to yield corresponding acyl fluoride of formula Rf—O—CF2—CF2—O—CF2—C(O)F; and (E) hydrol

Abstract: A catalytic process for the synthesis of trifluoroethylene from chlorotrifluoroethylene which comprises contacting chlorotrifluoroethylene with hydrogen in the presence of a catalyst consisting of palladium or platinum supported on extruded activated carbon.