Solvay Solexis, Inc.

Solvay Specialty Polymers Italy S.p.a.

Ausimont

Auismont S.p.a.

Syensqo Specialty Polymers Italy S.p.a.

Pier Antonio Guarda

Giuseppe Marchionni

Julio A Abusleme

Giulio Brinati

Rosaldo Picozzi

Gianfranco Spataro

Marco Avataneo

Simonetta Antonella Fontana

Silvia Rita Petricci

Elvira Pagano

Ugo De Patto

Roberto Valsecchi

Giovanni Simeone

Giulo Brinati

Marco Galimberti

Mattia Bassi

Patrizia Serenella Maccone

Anna M Staccione

Claudio Oldani

Padmanabhan Srinivasan

Giovanni Boccaletti

Vincent Pierre Meunier

Antonio Puppo

Ralph J De Pasquale

Maurizio Paganin

Ralph De Pasquale

Andrea Lotierzo

The present invention relates to novel (per)fluoropolyether polymers characterized by high molecular weight and high functionality, to a process for their manufacture and to their use as intermediate compounds in the preparation of further polymers.

(Per)fluoropolyether (PFPE) polymers

The present invention relates to novel (per)fluoropolyether (PFPE) polymers, to a process for their manufacture and to their use as additives in coating compositions.

(Per)fluoropolyether polymers and use thereof

The present invention relates to a method for the manufacture of polyalkoxylated polymers.

Method for manufacturing polyalkoxylated polymers

Compounds [compounds (L)] comprising at least one monocyclic, polycyclic or polycondensed aromatic moiety [moiety (A*)], wherein: at least one carbon atom of moiety (A*) is substituted with a fluoropolyoxyalkene chain [chain (R)], said chain (R) comprising: a) a fluorocarbon segment having ether linkages in the main chain and b) at least one hydroxyl group and wherein: at least one other carbon atom of moiety (A*) is substituted with an electron-withdrawing group and mixtures thereof are herein disclosed. Disclosed are also a process for manufacturing compounds (L), a method for lubricating MRM comprising using compounds (L), a lubricant composition comprising one or more compounds (L) and a method for manufacturing a composition (C).

Aromatic compounds bearing hydroxyl-substituted (per)fluoropolyether chains

(Per)fluoropolyether polymers comprising a (per)fluoropolyether chain having two ends, wherein one or both ends comprise one or more zwitterionic groups at one or both polymer ends, methods for their manufacture and uses thereof are herein disclosed. The polymers can be used in particular for protecting materials in contact with biological fluids or fluids containing biological material from contamination by organic compounds therein contained.

Zwitterionic derivatives of (per)fluoropolyethers

The present invention relates to (per)fluoropolyether (PFPE) amino derivatives, a method for their manufacturing and their uses.

Amino derivatives of perfluoropolyethers

A method of manufacturing cyclophosphazenes PFPE derivatives to be used in the lubrication of magnetic recording media is herein provided. The method comprises: a) a (per)fluoropolyether (PFPE) polyol [PFPE (P)] comprising a fluoropolyoxyalkylene chain (R) having two chain ends, each chain end comprising at least one hydroxy group, and b) the corresponding alkoxide of perfluoropolyether (P) [PFPE (P)] wherein the equivalent concentration of PFPE (P) in PFPE (P) is lower than 30%, preferably ranging from 5% to 15%; 2) contacting mixture (M) with a perhalocyclophosphazene (CP) to provide a mixture (M1) containing an equivalent ratio of PFPE (P)/(CP) of at least 1; 3) allowing mixture (M1) to react until complete disappearance of P&#x2014;Cl groups to provide a mixture (M2); 4) submitting mixture (M2) to hydrolysis to provide a mixture (M3); 5) optionally removing (P) from mixture (M3) to provide a mixture (M4). A method of purifying mixture (M4) is also herein provided.

Method of manufacturing cyclophosphazene derivatives

Liquid compositions of fluorinated anion exchange polymers

A process for transferring heat comprising the following steps:

Method for transferring heat

The invention relates to a batch chromatography process the purification of (per)fluoropolyether (PFPE) carboxylates, in particular to a process for increasing the average functionality of PFPE carboxylates mixtures.

Process for the purification of (per) fluoropolyethers with carboxylate end groups

A convenient process for the manufacture of alkoxylated derivatives of PFPE alcohols is herein provided. The process envisages the use of a boron-based catalyst and an iodine source and is characterized in that a PFPE alkoxide is prepared separately, contacted with a boric acid triester of the same PFPE alcohol and finally submitted to alkoxylation in the presence of an iodine source. The process allows achieving an alkoxylation degree of at least 2 with high yields and under conditions that are convenient on an industrial scale.

Process for the alkoxylation of (per) fluoropolyether alcohols

A process for preparing perfluoropolyethers of formulaT-O&#x2014;(R)-T'&#x2003;&#x2003;(I)wherein:

Method for preparing carbonylic perfluoropolyethers

A process for transferring heat from a heat source to a heat sink, comprising using as heat transfer medium a composition comprising: at least one fluorinated fluid free from functional groups (fluid (H)); at least one functional (per)fluoropolyether (functional PFPE(1)) comprising recurring units (R1), said recurring units comprising at least one ether linkage in the main chain and at least one fluorine atom (fluoropolyoxyalkylene chain), and at least one functional end group chosen between &#x2014;COOH and &#x2014;CONH; at least one functional (per)fluoropolyether (functional PFPE(2)) comprising recurring units (R1) as defined above and at least one functional end group chosen between &#x2014;COCFand its hydroxylated derivative &#x2014;C(OH)CF.

Linear perfluoropolyethers of formula:T-O (CFO)(CFCFO)(CFCFCFO)(CFCFCFCFO)-T&#x2003;&#x2003;(I)wherein n, m, r, s are integers such that the polymer number average molecular weight is comprised between 700 and 100,000 and the n/(n+m+r+s) ratio ranges from 0.05 to 0.40, and respective preparation process by addition of a peroxidic perfluoropolyether of formula (III):T-O(CFO), (CFCFO), (O)-T&#x2003;&#x2003;(III)having a PO from 1.8 to 4, to a perfluoropolyether oil preheated at a temperature comprised between 150&#xb0; C. and 250&#xb0; C. and subsequent exhaustive fluorination of the obtained compound.

Linear perfluoropolyethers having an improved thermooxidative stability

The invention pertains to novel (per)fluoropolyethers comprising at least one (per)fluoropolyoxyalkylene chain (chain R) comprising at least one recurring unit (R2) having formula: CF&#x2014;CF(CFOSOF)&#x2014;O&#x2014; (poly(fluorosulfate) PFPE) to a process for their manufacture, and to their use for providing functional (per)fluoropolyethers.

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Arese, Italy

Pier Antonio Guarda