Abstract: A process for the manufacture of a polyol (per)fluoropolyether derivative comprising: 1. reacting at least one triol having two protected hydroxyl functions and a free hydroxyl group with an activating agent, to yield an activated protected triol; 2. reacting the activated protected triol with a functional (per)fluoropolyether derivative of formula: T2-O—Rf-T1, wherein: Rf represents a fluoropolyoxyalkene chain which is a fluorocarbon segment comprising ether linkages in main chain; T1 and T2, equal to or different from each other, are independently selected from non-functional groups of formula: —CF3, —CF2—CF3, —CF2Cl, —CF2CF2Cl, —CF2—COF, —COF: and functional hydroxyl groups comprising at least one hydroxyl group, with the provisio that at least one of T1 and T2 is a functional hydroxyl group as above detailed to yield a protected polyol (per)fluoropolyether derivative; and 3. deprotecting the protected polyol (per)fluoropolyether derivative to yield the polyol (per)fluoropolyether derivative.

Abstract: A cyclic phosphazene compound complying with formula (I) or (II): wherein: Rfand R?frepresent independently a (per)fluoropolyoxyalkylene chain comprising recurring units Ro, said recurring units, distributed randomly through the (per)fluoropolyoxyalkylene chain, being chosen among; (i)—CFXO—, X being F or CF3; (ii) —CF2CFXO—, X being F or CF3; (iii) —CF2CF2CF2O—; (iv) —CF2CF2CF2CF2O—; Z and Z? represent a polar group of formula —O?M+, M being chosen among hydrogen, a monovalent metal, or an ammonium radical of formula NR1R2R3R4, or represent a polar group of formula —O?)2M?2+, M? being a divalent metal; nZ is an integer from 1 to 3; nZ? is an integer from 1 to 4; nf? is an integer such that nZ?+nf? is equal to 8; and nfis an integer such that nZ+nfis equal to 6.

Abstract: A process for the manufacture of a polyol (per)fluoropolyether derivative, comprising: 1. reacting at least one triol having two protected hydroxyl functions and a free hydroxyl group with an activating agent, to yield an activated protected triol; 2. reacting the activated protected triol with a functional (per)fluoropolyether derivative of formula: T2-O—Rf-T1, wherein: Rf represents a fluoropolyoxyalkene chain which is a fluorocarbon segment comprising ether linkages in main chain; T1 and T2, equal to or different from each other, are independently selected from non-functional groups of formula: —CF3, —CF2—CF3, —CF2Cl, —CF2CF2Cl, —CF2—COF, —COF: and functional hydroxyl groups comprising at least one hydroxyl group, with the provisio that at least one of T1 and T2 is a functional hydroxyl group as above detailed to yield a protected polyol (per)fluoropolyether derivative; and 3. deprotecting the protected polyol (per)fluoropolyether derivative to yield the polyol (per)fluoropolyether derivative.

Abstract: A cyclic phosphazene compound complying with formula (I) or (II): wherein: Rf and R?f represent independently a (per)fluoropolyoxyalkylene chain comprising recurring units Ro, said recurring units, distributed randomly through the (per)fluoropolyoxyalkylene chain, being chosen among; (i)—CFXO—, X being F or CF3; (ii) —CF2CFXO—, X being F or CF3; (iii) —CF2CF2CF2O—; (iv) —CF2CF2CF2CF2O—; Z and Z? represent a polar group of formula —O?M+, M being chosen among hydrogen, a monovalent metal, or an ammonium radical of formula NR1R2R3R4, or represent a polar group of formula —O?)2M?2+, M? being a divalent metal; nZ is an integer from 1 to 3; nZ? is an integer from 1 to 4; nf? is an integer such that nZ?+nf? is equal to 8; and nf is an integer such that nZ+nf is equal to 6.

Abstract: Hydrofluoroethers of formula: T-CFX?—O—Rf—CFX-T???(II) wherein: T=CH3; X, X?, equal to or different from each other, are selected between F, CF3; T?=F, Cl, H, C1—C3 perfluoroalkyl, CH3, CH20H, COC1, CHO, CO2H; Rf is a perfluoroalkylene or a perfluoropolyoxyalkylene and respective preparation process by reduction with hydrogen in the presence of a platinum catalyst supported on metal fluorides of the corresponding compounds with at least one —COCl end group.

Abstract: Hydrofluoroethers of formula: T-CFX?—O—Rf—CFX-T???(II) wherein: T=CH3; X, X?, equal to or different from each other, are selected between F, CF3; T00?=F, Cl, H, C1–C3 perfluoroalkyl, CH3, CH2OH, COCl, CHO, CO2H; Rf is a perfluoroalkylene or a perfluoropolyoxyalkylene and respective preparation process by reduction with hydrogen in the presence of a platinum catalyst supported on metal fluorides of the corresponding compounds with at least one —COCl end group.

Abstract: Process for the perfluoropolyether preparation having reactive end groups —CH2NH2, —CHO, —CH2OH, by reduction of the corresponding perfluoropolyethers having —CN, —COCl, —CHO end groups by using gaseous hydrogen in the presence of a catalyst constituted by Pd, Rh, or Ru, supported on solid metal fluorides, at a temperature from 20° C. to 150° C. and under a pressure between 1 and 50 atm.

Abstract: A process for the preparation of perfluoropolyethers of formula: T-CFX?—O—Rf—CFX—COF??(I) wherein: T=COF, F, C1-C3 perfluoroalkyl; X, X?=—F, —CF3; Rf=—(C2F4O)m(CF2CF(CF3)O)n(CF2O)p(CF(CF3)O)q—, the sum n+m+p+q ranges from 2 to 200, by reduction with hydrogen of the corresponding peroxidic perfluoropolyethers, in the presence of a catalyst formed by metals of the VIII group supported on metal fluorides, at a temperture from 20° C. to 140° C., and at a pressure between 1 and 50 atm.

Abstract: Process for the perfluoropolyether preparation having reactive end groups —CH2NH2, —CHO, —CH2OH, by reduction of the corresponding perfluoropolyethers having —CN, —COCl, —CHO end groups by using gaseous hydrogen in the presence of a catalyst constituted by Pd, Rh, or Ru, supported on solid metal fluorides, at a temperature from 20° C to 150° C and under a pressure between 1 and 50 atm.

Abstract: Hydrofluoroethers of formula:

Abstract: A process for the preparation of perfluoropolyethers of formula: