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either one of the carbon atoms of said double bond, to obtain a compound wherein at least one carbon-hydrogen bond has been replaced by a carbon-fluorine bond.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: A process for producing a perfluorinated functional compound comprises the steps of: A) converting an at least partially hydrogenated alcohol into an at least partially hydrogenated ester compound; and B) reacting said at least partially hydrogenated ester 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 perfluorinated ester compound.

Abstract: Process for preparing perfluoro-1,3-butadiene, comprising the following steps: A) preparation of fluoro-halo-butanes of formula: CF2YI—CFYII—CFYII—CF2YI??(V) in which YI and YII, which may be identical or different, may be H, Cl or Br, with the condition that YI and YII are not simultaneously hydrogen; starting with a chloroolefin having the formula: CY?Y?CY?Cl??(II) in which Y, Y?, Y?, which may be identical or different, are H, Cl or Br, with the condition that Y, Y?, Y? are not simultaneously hydrogen; and performing the following steps: a fluorodimerization, and a fluorination with elemental fluorine, the order of the two steps also possibly being inverted, a dehalogenation or dehydrohalogenation step being performed between the two steps, B) dehalogenation or dehydrohalogenation of the fluoro-halo compounds of formula (V) to give the compound perfluoro-1,3-butadiene.

Abstract: A process is provided for the preparation of difluoroacetic acid from tetrafluoroethylene. The process comprises reacting tetrafluoroethylene with an aqueous solution of an inorganic base, optionally in the presence of an organic solvent.

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 the fluorination of haloolefins with elemental fluorine in the presence of anhydrous HF proceeds with high yield and selectivity in the product deriving from the addition of fluorine to the carbon-carbon double bond.

Abstract: The invention pertains to a process for preparing compounds of formula (I-A) or (I-B) here below: by reaction of perfluoroallylfluorosulfate (FAFS) of formula (II): with at least one hypofluorite of formula (II-A) or (II-B): wherein: RF in formulae (I-A) and (II-A) is a monovalent fluorocarbon C1-C20 group, optionally comprising oxygen catenary atoms, optionally comprising functional groups comprising heteroatoms (e.g. —SO2F groups); R?F in formulae (I-B) and (II-B) is a divalent fluorocarbon C1-C6 group, preferably a group of formula wherein X1 and X2, equal to or different from each other, are independently a fluorine atom or a C1-C3 fluorocarbon group. The FAFS-hypofluorite adducts of formulae (I-A) and (I-B) can be produced with high selectivity so as to access useful intermediates which can further be reacted taking advantage of the un-modified fluorosulfate group chemistry.

Abstract: VDF-based curable fluoroelastomers having glass transition temperature lower than ?35° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application.

Abstract: A process for producing a perfluorinated functional compound is disclosed, which comprises: A. converting an at least partially hydrogenated alcohol into an at least partially hydrogenated fluoroformate compound; B. reacting said at least partially hydrogenated fluoroformate 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 perfluorinated fluoroformate compound.

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: 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: A process for the manufacture of a perfluorovinylether by hydrodehalogenation of a halofluoroether (HFE) having general formula (I-A) or (I-B): wherein Rf represents a C1-C6 perfluoro(oxy)alkyl group; Rf?, Rf? and Rf??, equal to or different from each other, independently represent fluorine atoms or C1-C5 perfluoro(oxy)alkyl groups; X and X?, equal to or different from each other, are independently chosen among Cl, Br or I; Rf* and Rf*?, equal to or different from each other, independently represent fluorine atoms or C1-C3 perfluoro(oxy)alkyl groups; Y1 and Y2, equal to or different from each other, independently represent fluorine atoms or C1-C3 perfluoroalkyl groups. The process comprises contacting the halofluoroether (HFE) with hydrogen in the presence of a catalyst comprising at least one transition metal of group VIII B at a temperature of at most 340° C.

Abstract: Process for preparing perfluoro-1,3-butadiene, comprising the following steps: A) preparation of fluoro-halo-butanes of formula: CF2 YI—CFYII—CFYII—CF2 YI??(V) in which YI and YII, which may be identical or different, may be H, Cl or Br, with the condition that YI and YII are not simultaneously hydrogen; starting with a chloroolefin having the formula: CY?Y?CY?Cl??(II) in which Y, Y?, Y?, which may be identical or different, are H, Cl or Br, with the condition that Y, Y?, Y? are not simultaneously hydrogen; and performing the following steps: a fluorodimerization, and a fluorination with elemental fluorine, the order of the two steps also possibly being inverted, a dehalogenation or dehydrohalogenation step being performed between the two steps, B) dehalogenation or dehydrohalogenation of the fluoro-halo compounds of formula (V) to give the compound perfluoro-1,3-butadiene.

Abstract: The invention pertains to a process for preparing compounds of formula (I-A) or (I-B) here below: by reaction of perfluoroallylfluorosulfate (FAFS) of formula (II): with at least one hypofluorite of formula (II-A) or (II-B): wherein: RF in formulae (I-A) and (II-A) is a monovalent fluorocarbon C1-C20 group, optionally comprising oxygen catenary atoms, optionally comprising functional groups comprising heteroatoms (e.g. —SO2F groups); R?F in formulae (I-B) and (II-B) is a divalent fluorocarbon C1-C6 group, preferably a group of formula wherein X1 and X2, equal to or different from each other, are independently a fluorine atom or a C1-C3 fluorocarbon group. The FAFS-hypofluorite adducts of formulae (I-A) and (I-B) can be produced with high selectivity so as to access useful intermediates which can further be reacted taking advantage of the un-modified fluorosulfate group chemistry.

Abstract: A process for preparing perfluorovinylethers having general formula: RfO—CF?CF2??(IA) where Rf is a C1-C3 alkyl perfluorinated substituent, comprises the steps of: 1a) fluorinating olefins of formula: CY?Y?CY?Cl??(II) where Y, Y? and Y?, equal to or different from each other, are H, Cl, Br, and are not contemporaneously hydrogen; and obtaining fluorohalogencarbons of formula: FCY?Y—CY?ClF??(III) where Y, Y? and Y? are as above; 2a) dehalogenating or dehydrohalogenating fluorohalogencarbons (III) and obtaining fluorohalogenolefins of formula: FCYI?CYIIF??(IV) where YI and YII, equal to or different from each other, are H, Cl, Br and are not contemporaneously H; 3a) reacting a hypofluorite of formula RfOF and a fluorohalogenolefin (IV), and obtaining the fluorohalogenethers of formula: RfO—CFYI—CF2YII??(I) where YI, YII, equal to or different from each other, are Cl, Br, H and are not be contemporaneously H; and 4a) dehalogenating or dehydrohalogenating compounds (I) and obtaining perfluorov

Abstract: A process for obtaining vinyl compounds by dehalogenation of halofluorinated compounds having a linear, branched or cyclic structure, said halofluorinated compounds containing in the molecule at least one group: wherein Y1 and Y2, equal to or different from each other, are selected from Cl, Br, I; wherein the halofluorinated compounds are dehalogenated in the presence of a transition metal, or of transition metal couples, by operating in a biphasic system of solvents immiscible among each other, formed of a (per)fluorinated solvent and a dipolar aprotic or protic solvent (co-solvent), wherein the ratio moles co-solvent/equivalents of the halofluorinated compound ranges from 0.5 to 10, preferably from 0.5 to 5, still more preferably from 1 to 3.

Abstract: A process for preparing fluorovinylethers having general formula: RfO—CF?CF2??(IA) wherein Rf is a fluorinated or perfluorinated alkyl or cycloalkyl substituent; comprising the following reaction steps: 1) reaction of a hypofluorite; 2) dehalogenation or dehydrohalogenation of the fluorohalogenethers obtained in step 1) and obtainment of vinyl ethers; 3) fluorination with fluorine of the vinyl ethers and obtainment of fluorohalogenethers; and 4) dehydrohalogenation of the fluorohalogenethers and obtainment of the fluorovinylethers of formula (IV). The compounds of formula (IA) can be used, for example, in the preparation of various polymers, such as fluorinated elastomers and fluorinated thermoprocessable semicrystalline polymers.

Abstract: VDF-based curable fluoroelastomers having glass transition temperature lower than ?35° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application.

Abstract: TFE-based thermoprocessable copolymers having the following composition, expressed in percentage by moles on the total of the monomers: A) from 0.01 to 15% of the monomer of formula: CF2?CFOCF2OCF3??(a); A1) tetrafluoroethylene from 99.99 to 85%; optionally B) one or more (per)fluorinated comonomers having at least one unsaturation of ethylene type, different from TFE; the sum of the molar percentages A)+B) being such as to give polymers showing at least one melting peak at the thermogravimetric analysis (DSC).

Abstract: VDF-based curable fluoroelastomers having glass transition temperature lower than ?35° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application.