Ausimont S.p.a.

Solvay Solexis S.p.a.

International Coatings Limited

Politex S.a.s. Di Freudenberg Politex S.r.l.

Stefano Turri

Claudio Tonelli

Marinella Levi

Tania Trombetta

Massimo Scicchitano

Giuseppe Gianotti

Ferdinando Danusso

Ezio Strepparola

Aldo Sanguineti

Carlo Pogliani

Daria Lenti

Anna M Staccione

David Neil Williams

Fiorenza D'Aprile

Paolo Iengo

Robert Lines

Roberta Marchetti

Massimo Migliavacca

Sergio Novelli

Curable (per)fluoropolyether polyurethanes obtained by reaction in a first step of

Curable polyurethanes

Fluorinated oligourethanes, having number average molecular weight lower than or equal to 9,000, having a branched structure, formed of the following monomers and macromers:

Fluorinated oligourethanes

Use for the paper sizing of aqueous polyurethane dispersions from (per)fluoropolyethers obtainable by reaction among the following compounds:

Methods for paper sizing with fluorinated polymers

Formulations formed by aqueous dispersions of cationic ionomer fluorinated polyurethanes based on (per)fluoropolyethers, having end groups constituted by &#x2014;NCO groups reacted with hydrogenactive compounds to give covalent bonds stable to water but thermolabile, usable for the surface hydro- and oil-repellent treatment of textiles.

Hydro-oil-repellent compositions

Compositions comprising anionic ionomeric polyurethanes crosslinkable in a wide temperature range, said composition comprising the following components:

Compositions of crosslinkable polyurethanes

Additives for hydrogenated resins obtainable by using the following components:

Additives for hydrogenated resins

A process for inhibiting the fouling of a substrate in a marine fouling environment, which comprises forming on the substrate, before exposure to the said environment, a coating comprising a curable fluorinated resin of the general formula: W-L-YFC&#x2014;O&#x2014;R&#x2014;CFY-L-W wherein: W is a group of the general formula &#x2014;Si(R)(OR), wherein &#x3b1;=0, 1, or 2, preferably &#x3b1;=0, Rand Rindependently have the meaning of linear of branched C-Calkyl groups, optionally containing one or more ether groups, or C-Caryl or alkyl groups, and preferably Rand Rare C1-C4 alkyl groups; L is an organic linking group; Y is F or CF; and Ris a group having an average molecular weight by number between 350 and 8000, preferably between 500 and 3000, and comprising repeating units having at least one of the following structures randomly distributed along the chain: &#x2014;CFXO&#x2014;, CFCFO&#x2014;, CFCFCFO&#x2014;, CFCFCFCFO&#x2014;, CRRCFCFO&#x2014;, &#x2014;(CF(CF)CFO)&#x2014;, &#x2014;CFCF(CF)O&#x2014;, wherein X is F or CF, Rand Rindependently have the meaning of H, Cl, or C1-C4 perfluoroalkyl.

Antifouling coating composition comprising a fluorinated resin

Compositions for coatings based on (per) fluoropolyethers

Polyurethanes having a low friction coefficient

Compositions for films having a low refractive index

Use of fluorine containing polymers for the preparation of high dry formulations wherein the fluorine containing polymers are based on fluoropolyethers comprising a fluorine containing part R and optionally an hydrogenated part R , the bonds joining the fluorine containing part to the hydrogenated one being an ether &mdash;C&mdash;O&mdash;C&mdash;, bond the terminals T being such as to render the structure bi or polyfunctional, making thus possible the cross-linking reaction, the hydrogenated part R not containing groups capable of linking by means of hydrogen bonds to basic acceptors.

Coatings based on fluoropolyethers

Use of fluorinated polymers based on fluoropolyethers for the preparation of crosslinkable high dry formulations comprising a fluorinated part R.sub.F and optionally an hydrogenated part R.sub.H, not containing groups capable of linking by means of hydrogen bonds to basic acceptors, an hydrogenated part Rh.sub.1 and Rh.sub.2, wherein Rh.sub.1 is equal to or different from Rh.sub.2, and Rh.sub.1 and/or Rh.sub.2 being linking bonds containing at least a functional group capable of linking by means of hydrogen bonds with basic acceptors, the bonds joining the fluorinated part to the hydrogenated part being of ether C--O simple type, the terminals T'.sub.a and T' being such as to render the structure mono-, bi- or polyfunctional, and subsequent crosslinking of the fluorinated polymer, the monofunctional products being always in admixture with a resin having even a higher functionality than the described type; the preferred fluorinated products have the formula:

A method of protecting objects from graffiti using fluorinated polymers based on fluoropolyethers in a dry formulation wherein the fluorinated polymer includes a fluorinated part R.sub.F and optionally an hydrogenated part R.sub.H not containing groups capable of linking to basic acceptors by means of hydrogen bonds, the bonds linking the fluorinated part, derived from (per)fluoropolyethers, to the hydrogenated part being of simple C--O ether type, the T' terminal groups being such as to render the structure bi- or polyfunctional thus making possible the curing reaction, and subsequent curing of the fluorinated polymer.

Process for the protection of stony or coating surfaces

Separation process of bifunctional macromolecules having hydroxylic termination from non functional and/or monofunctional macromolecules having hydroxylic termination contained in admixture in perfluoropolyoxyalkylenes (I) comprising the following phases:

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Milan, Italy

Stefano Turri