Abstract: The present invention relates to a polymeric composition comprising a first polymer component C being selected from TFE/PAVE polymers comprising a small amount of chlorinated monomers selected from chlorotrifluoroethylene and dichlorodifluoroethylene and a second optional polymer component D being selected from TFE/PAVE polymers and being free from chlorine. The polymeric composition of the invention is characterized in that it has a total Cl content of from 0.01 to 0.25% by weight. The composition of the invention has very good adhesion on metals and plastics despite a very low total level of chlorine.

Abstract: The invention pertains to UV-curable compositions comprising a iodine-containing (per)fluoroelastomer, and well-defined amount of certain combinations of given photoinitiators and crosslinking which are particularly effective in delivering through low temperature UV curing crosslinked parts possessing outstanding mechanical properties.

Abstract: The present invention relates to a method for manufacturing of partially fluorinated polymers, notably vinylidene fluoride (VDF)-based polymers, in emulsion polymerization, and to a polymer obtained from said method.

Abstract: The invention pertains to UV-curable compositions comprising a iodine-containing (per)fluoroelastomer, and well-defined amount of certain combinations of given photoinitiators and crosslinking which are particularly effective in delivering through low temperature UV curing crosslinked parts possessing outstanding mechanical properties.

Abstract: The invention pertains to a (per)fluoroelastomer composition comprising: —a (per)fluoroelastomer [fluoroelastomer (A)]; and —at least one (per)fluoropolyether additive [polymer (E)] comprising a (per)fluoropolyether chain comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and comprising at least one chain end comprising at least one per(halo)fluorinated aromatic group [group (ArF)], said polymer (E) being comprised in the composition in an amount of 0.5 to 30 phr, with respect to fluoroelastomer (A).

Abstract: The present invention pertains to a fluoroelastomer composition including well-dispersed carbide fillers, to a method for its manufacture comprising: (i) providing an aqueous dispersion of particles of at least one non-metal carbide possessing an average particle size of less than 100 nm; (ii) providing an aqueous latex of a fluoroelastomer; (iii) mixing the said dispersion and the said latex; and (iv) coagulating, and to the use of the same for manufacturing cured articles.

Abstract: The invention pertains to a polyunsaturated compound having formula (I) [compound (DAIC-PFPE)]: TA-O—Rf-TA? wherein: —Rf is (per)fluoropolyoxyalkylene chain [chain (Rf)] comprising recurring units having at least one catenary ether bond and Sat least one fluorocarbon moiety; TA and TA?, equal to or different from each other, are selected from the group consisting of: (i) C1-C24 (hydro)(fluoro)carbon groups, possibly comprising one or more than one of H, O, and Cl; and (ii) (hydro)(fluoro)carbon group comprising at least one diallylisocyanurate group of formula (A) wherein each of R1, R2, R3, R4, R5, and R6 is, independently, a hydrogen atom or a C1-C3 hydrocarbon group, preferably a hydrogen atom (group TDAIC), with the provisio that at least one of TA and TA? is a group TDAIC, to a process for its manufacture and its use for curing fluoroelastomers, to fluoroelastomer compositions comprising the same, as well as to a process for producing fluororubber mouldings therefrom.

Abstract: The present invention relates to a method for manufacturing of partially fluorinated polymers, notably vinylidene fluoride (VDF)-based polymers, in emulsion polymerization, and to a polymer obtained from said method.

Abstract: The invention pertains to peroxide-curable fluoroelastomers for the oil and gas industry, including explosive decompression, and which can be easily processed to yield cured parts in standard machineries at reasonable throughput rates, said fluoroelastomers comprising: recurring units derived from vinylidene fluoride (VDF); recurring units derived from hexafluoropropylene (HFP); recurring units derived from at least one bis-olefin [bis-olefin (OF)] having general formula: wherein R1, R2, R3, R4, R5 and R6, equal or different from each other, are H, a halogen, or a C1-C5 optionally halogenated group, possibly comprising one or more oxygen group; Z is a linear or branched C1-C18 optionally halogenated alkylene or cycloalkylene radical, optionally containing oxygen atoms, or a (per)fluoropolyoxyalkylene radical; and iodine or bromine cure-sites; said fluoroelastomers further possessing a Mooney viscosity (ML) of at least 85 MU (1+10@121° C.), when measured according to ASTM D1646.

Abstract: The invention pertains to certain fluoroelastomer compositions comprising an iodine-containing (per)fluoroelastomer of low molecular weight and certain organic peroxides, possessing outstanding cross-linking behaviour at limited temperatures, and yielding resulting final parts exhibiting good mechanical and sealing properties, while avoiding discoloring/degradation phenomena, and enabling easy colour match in a wide range of colours.

Abstract: The invention pertains to a (per)fluoroelastomer composition comprising: —a (per)fluoroelastomer [fluoroelastomer (A)]; and —at least one (per)fluoropolyether additive [polymer (E)] comprising a (per)fluoropolyether chain comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and comprising at least one chain end comprising at least one per(halo)fluorinated aromatic group [group (AO], said polymer (E) being comprised in the composition in an amount of 0.5 to 30 phr, with respect to fluoroelastomer (A).

Abstract: The invention pertains to a process for manufacturing a fluoroelastomer [fluoroelastomer (A)] having a heat of fusion of less than 5 J/g as measured by ASTM D-3418-08, said method comprising emulsion polymerizing vinylidene fluoride (VDF) in the presence of at least one additional fluorinated monomer, in an aqueous polymerization medium, said method comprising polymerizing VDF and said additional fluorinated monomer(s) in the presence of a redox radical initiator system comprising: —at least one organic oxidizing agent [agent (O)]; —at least one organic reducing agent [agent (R)]; wherein agent (O) is fed to said polymerization medium separately from agent (R), so that agent (O) comes in contact with agent (R) exclusively in said polymerization medium comprising VDF and optional additional monomer(s), to fluoroelastomers having low amount of chain defects and low amount of polar end groups, notably obtainable from said process, and to curable compositions therefrom.

Abstract: The invention pertains to a process for manufacturing a (per)fluoropolymer, said process comprising polymerizing one or more fluorinated monomers in the presence of a multi-phase medium, said medium comprising: (A) a water phase [phase (W)]; (B) at least one fluorinated surfactant [surfactant (FS)] having formula (I) here below: Rf—(OCF2CF2)k-1—O—CF2—COOXa??(I) wherein Rf is a C1-C3 perfluoroalkyl group comprising, optionally, one or more ether oxygen atoms, k is 2 or 3 and Xa is a selected from a monovalent metal and an ammonium group of formula NRN4, wherein RN, equal or different at each occurrence, is a hydrogen atom or a C1-C3 alkyl group; (C) an oil phase [phase (O)] comprising: at least one non-functional (per)fluoropolyether (non-functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (RF)] and at least one functional (per)fluoropolyether (functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (R?F)] and having a number average molecular weight of

Abstract: The invention pertains to a fluoroelastomer comprising recurring units derived from vinylidene fluoride (VDF), hexa fluoropropylene (HFP); and from 0.1 to 10% by moles of recurring units derived from hexafluoroisobutene (HFIB), wherein the mole percentages are based on the total moles of recurring units.

Abstract: The invention pertains to a process for cryogenic milling mixtures of (per)fluoroelastomers and semicrystalline thermoplastic VDF polymers, and to free-flowing micronized pellets obtainable therefrom, said micronized pellets advantageously yielding, after extrusion and compounding, excellent mechanical properties, even improved over those of base fluoroelastomer matrix.

Abstract: A process for manufacturing a (per)fluoroelastomer having a heat of fusion of less than 5 J/g as measured by ASTM D-3418-08, comprising polymerizing at least one fluorinated monomer in the presence of at least one initiator in a polymerization medium comprising: (A) water; (B) at least one fluorinated surfactant [surfactant (FS)] having formula (I) here below, wherein: X1, X2 and X3, equal to or different from each other, are independently selected from the group consisting of H, F and C1-C6 (per)fluoroalkyl groups, optionally comprising one or more catenary or non-catenary oxygen atoms, RF represents a divalent perfluorinated C1-C3 bridging group, L represents a bond or a divalent group and Y represents a hydrophilic functionality selected from anionic functionalities, cationic functionalities and non-ionic functionalities; (C) at least one fluorinated compound [compound (F)] different from surfactant (FS); wherein said polymerization medium has a pH value of less than 7.

Abstract: The invention pertains to a process for cryogenic milling mixtures of (per)fluoroelastomers and semicrystalline thermoplastic VDF polymers, and to free-flowing micronized pellets obtainable therefrom, said micronized pellets advantageously yielding, after extrusion and compounding, excellent mechanical properties, even improved over those of base fluoroelastomer matrix.

Abstract: The invention pertains to a process for manufacturing a fluoroelastomer [fluoroelastomer (A)] having a heat of fusion of less than 5 J/g as measured by ASTM D-3418-08, said method comprising emulsion polymerizing vinylidene fluoride (VDF) in the presence of at least one additional fluorinated monomer, in an aqueous polymerization medium, said method comprising polymerizing VDF and said additional fluorinated monomer(s) in the presence of a redox radical initiator system comprising: —at least one organic oxidizing agent [agent (O)]; —at least one organic reducing agent [agent (R)]; wherein agent (O) is fed to said polymerization medium separately from agent (R), so that agent (O) comes in contact with agent (R) exclusively in said polymerization medium comprising VDF and optional additional monomer(s), to fluoroelastomers having low amount of chain defects and low amount of polar end groups, notably obtainable from said process, and to curable compositions therefrom.

Abstract: The invention pertains to peroxide-curable fluoroelastomers for the oil and gas industry, including explosive decompression, and which can be easily processed to yield cured parts in standard machineries at reasonable throughput rates, said fluoroelastomers comprising: recurring units derived from vinylidene fluoride (VDF); recurring units derived from hexafluoropropylene (HFP); recurring units derived from at least one bis-olefin [bis-olefin (OF)] having general formula: wherein R1, R2, R3, R4, R5 and R6, equal or different from each other, are H, a halogen, or a C1-C5 optionally halogenated group, possibly comprising one or more oxygen group; Z is a linear or branched C1-C18 optionally halogenated alkylene or cycloalkylene radical, optionally containing oxygen atoms, or a (per)fluoropolyoxyalkylene radical; and iodine or bromine cure-sites; said fluoroelastomers further possessing a Mooney viscosity (ML) of at least 85 MU (1+10@121° C.), when measured according to ASTM D1646.

Abstract: The invention pertains to a process for manufacturing a (per)fluoropolymer, said process comprising polymerizing one or more fluorinated monomers in the presence of a multi-phase medium, said medium comprising: (A) a water phase [phase (W)]; (B) at least one fluorinated surfactant [surfactant (FS)] having formula (I) here below: Rf—(OCF2CF2)k-1—O—CF2—COOXa??(I) wherein Rf is a C1-C3 perfluoroalkyl group comprising, optionally, one or more ether oxygen atoms, k is 2 or 3 and Xa is a selected from a monovalent metal and an ammonium group of formula NRN4, wherein RN, equal or different at each occurrence, is a hydrogen atom or a C1-C3 alkyl group; (C) an oil phase [phase (O)] comprising: at least one non-functional (per)fluoropolyether (non-functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (RF)] and at least one functional (per)fluoropolyether (functional PFPE) comprising at least one (per)fluoropolyoxyalkylene chain [chain (R?F)] and having a number average molecular