Solvay Specialty Polymers Italy S.p.a.

Cristiano Monzani

Vito Tortelli

Marco Galimberti

Ivan Diego Wlassics

Luca Merlo

Marco Avataneo

Piero Gavezotti

Patrizia Serenella Maccone

Valeriy Kapelyushko

Matteo Fantoni

Claudio Oldani

Stefano Bossolo

Roberto Valsecchi

Emanuela Antenucci

Letanzio Bragante

The present invention relates to a method for the synthesis of certain perfluoropolyether polymers having well-defined recurring units structure, and whereas the fraction of reactive end groups can be easily tuned.

Process for the manufacture of polyether polymers

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

A process for the preparation of fluorinated compounds having at least one &#x2014;OSFgroup, said method comprising the step of reacting SOFwith a fluorinated 3- or 4-membered cyclic ether in the presence of a fluoride catalyst.

Fluorinated compounds containing a&#x2014;OSFgroup and process for their preparation

The invention pertains to a fluoroelastomer composition [composition (C)] comprising: &#x2014;at least one fluoroelastomer [fluoroelastomer (A)]; &#x2014;at least one basic compound [base (B)]; &#x2014;at least one pyridinium-type salt [salt (P)] having at least two groups in ortho or para position to the quaternized nitrogen bearing a reactive hydrogen atom.

Fluoroelastomer composition

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A process for the preparation of the fluoroalkyl sulfonate salt of a nitrogen-based organic base said process comprising the step of reacting a fluoroalkyl sulfonyl halide with an organic base selected from the group consisting of tertiary amines, pyridines, amidines and guanidines.

Process for the synthesis of fluoralkyl sulfonate salts

The present invention pertains a fluoropolymer [polymer (F)] comprising: &#x2014;recurring units derived from at least one ethylenically unsaturated fluorinated monomer [monomer (FM)]; &#x2014;from 5% to 60% by moles [with respect to the total moles of recurring units of polymer (F)] of recurring units derived at least one ethylenically unsaturated fluorinated monomer containing at least one &#x2014;SOF functional group [monomer (IO)]; and &#x2014;from 0.01% to 10% by moles [with respect to the total moles of recurring units of polymer (F)] of recurring units derived from at least one monomer comprising an azide group [monomer (Az)], to a process for its manufacture, to a cross-linkable composition comprising the same, to a process for cross-linking the same and to articles comprising the cross-linked polymer.

Cross-linkable polymers comprising sulfonic acid functional groups

A compound of formula CF&#x2550;CFCFOSFand polymers comprising recurring units deriving from CF&#x2550;CFCFOSFare disclosed as well as processes for their preparation.

Fluorinated unsaturated compound and polymers obtainable therefrom

A process for fluorinating hydrocarbon compounds, which comprises:

Process for producing fluorinated organic compounds

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.

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Trezzo sull'Adda, Italy

Cristiano Monzani