Abstract: Chlorotrifluoroethylene (CTFE) thermoplastic perhalogenated polymers, formed by the following polymer components: (I) 10-90% by weight of a CTFE homopolymer and (II) 90-10% by weight of a CTFE copolymer modified with comonomer (a) selected from one or more perfluoroalkyl vinylethers having the formula: Rf—O—CF═CF2 wherein: Rf is a C2-C5 perfluoroalkyl group, resulting in the final polymer (I)+(II), the amount of (a) being from 0,2 to 5% by moles and the CTFE the remaining part to 100% by moles.

Abstract: A polymer composition formed by:

Abstract: Thermoplastic fluoropolymer compositions, flexible, without whitening, comprising: I) ETFE or ECTFE fluoropolymers modified with hydrogenated monomers; II) one or more hydrogenated plasticizers; III) one or more inorganic fire retardants; IV) optionally other ingredients such as fillers, smoke retarders, intumescent agents, pigments, lubricants, organic fire retardants and thermal stabilizers.

Abstract: Polymerization process of unsaturated pefluoromonomers, fluoro-containing monomers and optionally in the presence of hydrogen containing olefins, for obtaining polymers contaning hydrogen and fluorine, which utilizes a microemulsion comprising the following components:

Abstract: 1.

Abstract: Thermoprocessable copolymer, having a Melt Flow Index (MFI) between 0.01 and 1000, of the CTFE with an acrylic monomer having the general formula: CH2═CH—CO—O—R1   (I) wherein R1 is a hydrogenated radical from 1 to 20 C atoms, C1-C20, alkyl, linear and/or branched, or cycloalkyl radical, or R1 is H. The radical R1 can optionally contain: heteroatoms preferably Cl, O, N; one or more functional groups preferably selected from —OH, —COOH, epoxide, ester and ether; and double bonds; the amount of the comonomer of formula (I) ranges from 0.01 to 5% by moles.

Abstract: Ethylene fluoro-containing copolymers of the ECTFE and ETFE type, optionally in the presence of a third comonomer in amount comprised between 0.1 and 10% by moles, having a viscosity between 102 and 105 Pa.sec with shear rates of 1 sec−1 measured at the temperature of about 30° C. higher than the second melting temperature, and having a rheologic curve in the diagram shear viscosity/shear-rate with a slope higher than 200, calculated as ratio between the viscosity in Pa.sec and the shear-rate in sec−1 in the shear-rate range comprised between 1 and 10 sec−1, and having a processability zone with shear-rate values higher than 10 s−1.

Abstract: Polymer composition comprising (A) (co)polymers based on chlorotrifluoroethylene (PCTFE) and (B) copolymers based on ethylene/chlorotrifluoroethylene (ECTFE) and/or ethylene/tetrafluoroethylene (ETFE).

Abstract: A composition comprising a polymer mixture A of polymers formed by:

Abstract: Chlorotrifluoroethylene (CTFE) thermoplastic copolymers, comprising: (a) from 0.15 to 4% by moles of one or more fluorodioxoles having the general formula:  wherein: X1 and X2, equal to or different from each other, are selected among —F or —CF3; Z is selected among —F, —H, —Cl; Y is equal to ORf and Rf is a perfluoroalkyl having from 1 to 5 carbon atoms, or Y=Z; (b) CTFE, forming the remaining part to 100% by moles.

Abstract: Thermoplastic fluoropolymer compositions, flexible, without whitening, comprising:

Abstract: Vinylidenfluoride (VDF) thermoplastic copolymers, consisting of (a) from 0.1 to 10% by moles, preferably from 0.5 to 5%, of one or more fluorodioxoles of formula: wherein Y is equal to ORf wherein Rf is a perfluoroalkyl having from 1 to 5 carbon atoms, or Y═Z as defined hereinunder; Y is preferably equal to ORf; X1 and X2, equal to or different from each other, are —F or —CF3; Z is selected from —F, —H, —Cl; (b) VDF, being the remaining part to 100% by moles.

Abstract: Perfluoropropylvinylether (FPVE) purification process with C1-C10 alcohols or mixtures thereof.

Abstract: Process for preparing dichlorofluoroacetylfluoride (CFCl.sub.2 COF) comprising the following steps:a) fluorination with hydrofluoric acid (HF) of the trichloroacetyl halide in a fixed or fluidized tubular bed reactor, filled with fluorination catalysts and having a temperature profile between the inlet of the reactants and the outlet of the reaction products, in the range from 175.degree. C. to 275.degree. C.b) distillation of the reaction products with trichloroacetylfluoride recycle and recovery of a mixture formed by HF and CFCl.sub.2 COF;c) separation of the HF/CFCl.sub.2 COF mixture components by cooling at temperatures lower than -10.degree. C., and optionally the HF recycle.

Abstract: A copolymer comprising:(a) from 10 to 70% by moles of ethylene,(b) from 30 to 90% by moles of a fluorinated monomer selected from tetrafluoroethylene, chlorotrifluoroethylene, or their mixtures,(c) from 0.1 to 30% by moles, with respect to the total amount of monomers (a) and (b), of a hydrogenated monomer having the formula:CH.sub.2 =CH--(CH.sub.2).sub.n --R.sub.1 (I)where R.sub.1 =--OR.sub.2, --(O).sub.t CO(O).sub.p R.sub.2 with t and p as integers: t=0 or 1 and p=0 or 1 and R.sub.2 is a hydrogenated radical from 1 to 20 carbon atoms C.sub.1 -C.sub.20, branched and/or linear alkyl and cyclo-alkyl radical or R.sub.2 is H. The R.sub.2 radical may optionally contain: heteroatoms preferably Cl, O, N; one or more functional groups, preferably chosen among OH, COOH, epoxide, ester and ether; and double bonds. The n subscript is an integer number between 0 and 10.

Abstract: Polymerization process of unsaturated pefluoromonomers, fluoro-containing monomers and optionally in the presence of hydrogen containing olefins, for obtaining polymers contaning hydrogen and fluorine, which utilizes a microemulsion comprising the following components:(a) water;(b) a fluoropolyoxyalkylene having hydrogen-containing end groups and/or hydrogen-containing repeating units;(c) a fluorine-free organic radicalic initiator for the polymerization of fluoro-containing monomers, soluble in component (B);(d) a fluoro-containing surfactant.

Abstract: This invention relates fluorinated polymers having high structural regularity, characterized by a high maximum operating temperature and by improved mechanical and processability properties, prepared by a (co)polymerization process of fluorinated olefinic monomers, optionally in association with non-fluorinated olefins, in aqueous emulsion, in the presence of radical photoinitiators and of ultraviolet-visible radiation.

Abstract: Tetrafluoroethylene (TFE) thermoprocessable copolymers, consisting of:(A) from 0.1 to 15% by moles of a fluorodioxol of formula ##STR1## wherein R.sub.F is a perfluoroalkyl having from 1 to 5 carbon atoms; X.sub.1 and X.sub.2, equal to or different from each other, are --F or --CF.sub.3 ; Z is selected from --F, --H and --Cl;(B) from 0 to 15% by moles of a perfluorinated monomer selected from hexafluoropropene (HFP) and a perfluoralkylvinylether of formula CF.sub.2 .dbd.CF--OR'.sub.f wherein R'.sub.f is a perfluoroalkyl C.sub.2 -C.sub.4 or their mixtures; excluding the value 0 for the amount of the monomer (B); and(C) TFE forming the remaining part to 100%; with the proviso that the total amount of the monomers (A) and (B) is lower than or equal to 20% by mole.

Abstract: Use of surfactants in the suspension polymerization of fluorinated monomers for preparing fluoropolymers containing hydrogen, said surfacants having the general formula:R.sub.f --[L--(OCHR.sub.1 --CHR.sub.2).sub.m --OZ)].sub.iwherein:i is equal to 1 or 2;m is an integer comprised between 4 and 60;L can be chosen between: --(CFY--CO--O).sub.p R'-- and --(CFY--CO--NH).sub.p R'--wherein p is an integer equal to 0 or to 1;Y=F, CF.sub.3 ; R'=alkylic radical C.sub.1 -C.sub.5, linear or branched when possible;R.sub.1, R.sub.2 can be both H or the former H and the latter CH.sub.3 ;Z can be H, alkyl radical C.sub.1 -C.sub.3, linear or branched when possible; or (CH.sub.2).sub.n OH with n an integer from 1 to 6;R.sub.f is a perfluoroalkylic radical or a perfluoropolyether radical, having a number average molecular weight comprised between 250 and 1500.

Abstract: Ethylene fluoro-containing copolymers of the ECTFE and ETFE type, optionally in the presence of a third comonomer in amount comprised between 0.1 and 10% by moles, having a viscosity between 10.sup.2 and 10.sup.5 Pa.sec with shear rates of 1 sec.sup.-1 measured at the temperature of about 30.degree. C. higher than the second melting temperature, and having a rheologic curve in the diagram shear viscosity/shear-rate with a slope higher than 200, calculated as ratio between the viscosity in Pa.sec and the shear-rate in sec.sup.-1 in the shear-rate range comprised between 1 and 10 sec.sup.-1, and having a processability zone with shear-rate values higher than 10 s.sup.-1.