Ausimont S.p.a.

Solvay Solexis S.p.a.

Solvay Specialty Polymers Italy S.p.a.

Patrizia Serenella Maccone

Julio A Abusleme

Vincenzo Arcella

Antonio Russo

Giulio Brinati

Silvia Rita Petricci

Rossella Silvani

Enrico Drioli

Giuseppe Marchionni

Vito Tortelli

Claudio Tonelli

Walter Navarrini

Pier Antonio Guarda

Mario Visca

Marco Avataneo

Marco Galimberti

Pasqua Colaianna

Christine Hamon

Cristiano Monzani

Roberto Valsecchi

Andrea Vittorio Oriani

Emanuele Di Nicolo'

Pasquale Campanelli

Fiorenza D'Aprile

Giovanni Boccaletti

Alberto Zompatori

Libero Damen

Amalia Gordano

Paolo Fossati

Giuseppina Grippaldi

Bradley Kent

The present invention relates to a novel process for the synthesis of (per)fluoropolyether polymers, to certain novel (per)fluoropolyether polymers. The present invention also relates to the use of the (per)fluoropolyether polymers thus obtained as intermediate compounds for the manufacture of further polymers suitable for use as lubricants, notably for magnetic recording media (MRM).

(Per)fluoropolyether polymers

The present invention relates to a novel liquid electrolyte to be used in lithium batteries, said electrolyte comprising a lithium salt and a (per)fluoropolyether (PFPE) polymer.

Liquid electrolytes for lithium batteries

The present invention relates to a composition comprising at least one aromatic polymer and at least one fluorinated polymer, articles made from such compositions and uses thereof.

Composition comprising aromatic and fluorinated polymers and use thereof

Fluorinated lubricants of formula:T-O-[A-B]-[A-B']-A-T&#x2032;&#x2003;&#x2003;(I)wherein:A=&#x2014;(X)&#x2014;O-A&#x2032;-(X&#x2032;)

Fluorinated lubricants

Additives for fluorinated oils

Compounds formed of (per)fluoropolyether chains and end groups having a pyridine structure, with structural formula:T-CW&#x2014;O&#x2014;R&#x2014;CW-T&#x2003;&#x2003;(I)wherein 

Perfluoropolyether additives

Aqueous compositions of (per)fluoropolyether phosphates of formula:T&#x2014;O&#x2014;[R&#x2014;CFY&#x2014;L&#x2014;O]P(O)(OZ)(OH); &#x2003;&#x2003;(A)and/or(OH)(OZ)P(O)[O&#x2014;L&#x2014;YFC&#x2014;O&#x2014;R&#x2014;CFY&#x2014;L&#x2014;O&#x2014;P(O)(OZ)]&#x2014;&#x2014;[O&#x2014;L&#x2014;YFC&#x2014;O&#x2014;R&#x2014;CFY&#x2014;L&#x2014;O]P(O)(OZ)(OH)&#x2003;&#x2003;(B)and use thereof to confer oleo-repellence to the paper by means of the size-press method.

Aqueous compositions of perfluoropolyether phosphates and use thereof to confer oleo-repellence to paper

Use as stabilizers of perfluoropolyether oils at high temperatures, higher than 200&#xb0; C., of compounds not containing phosphor and having the general formula (A): 

Additives for perfluoropolyether oils

Cyclic phosphazene compounds of formula (I):wherein:

Cyclic phosphazene compounds and use thereof as additives of perfluoropolyether oils

Use of fluorinated liquids

Porous membranes of (per)fluorinated amorphous polymers having a porosity in the range 5-500 nm, preferably 20-100 nm, measured by an atomic force electronic microscope; the membrane pore average size distribution being narrow, about 80%-90% of the pores have a size ranging from minus 5 nm to plus 5 nm of the value of the distribution maximum peak.

Membranes of (per)fluorinated amorphous polymers

Semipermeable porous membranes of semi-crystalline fluoropolymers

Amorphous fluoropolymer manufactured articles

A process for preparing a solution and/or dispersion containing sulphonic (per)fluorinated ionomers having &mdash;SO,M functional groups, wherein M is selected from H, Li, Na, K, NR,(R equal to or different from each other are selected from H, CH,, C,H,), characterized in that it dissolves the above defined ionomers at a temperature comprised between the room temperature and about 150&deg; C., in a monophasic ternary mixture essentially constituted by water, by a C,-C,alcohol and by a fluoro(poly)oxyalkylene having one hydrogen atom in at least a fluorinated end group; the dispersed polymer particle sizes are in the range 30-100 nm.

Preparation of sulphonic fluorinated polymer solutions

Purification process of amorphous polymers comprising the following steps:

Fluorinated polymer purification

Growing community of inventors

Milan, Italy

Patrizia Serenella Maccone