Solvay Specialty Polymers Italy S.p.a.

Solvay Solexis S.p.a.

Syensqo Sa

Marco Galimberti

Vito Tortelli

Walter Navarrini

Marco Apostolo

Francesco Triulzi

Cristiano Monzani

Giovanni Fontana

Emanuela Antenucci

Piero Gavezotti

Roberto Valsecchi

Giuseppe Marchionni

Pier Antonio Guarda

Patrizia Serenella Maccone

Claudio Adolfo Pietro Tonelli

Simonetta Antonella Fontana

Valeriy Kapelyushko

Stefano Millefanti

Rosaldo Picozzi

Giovanni Simeone

Letanzio Bragante

Ji-Ae Choi

Guiseppe Marchionni

Hee-Sung Choi

So-Young Lee

Lawrence Alan Hough

Guillaume MÜLLER

The present invention relates to a method for exchanging heat with an object said method comprising using a heat transfer fluid wherein said heat transfer fluid comprises one or more chemical compounds having the general formula (I) wherein: —Rcan be any C-Cfluorinated linear or branched carbon chain which can be partially or fully fluorinated, and can comprise O or S atoms, —X, Y and Z can be independently selected from halogens or hydrogen, with the provision that at least one of X, Y or Z is a halogen.

Heat exchange method using fluorinated compounds having a low GWP

The present invention relates to a process for the synthesis of partially and fully fluorinated polyether (PFPE) polymers comprising cyclic moieties in the backbone chain, to PFPE polymers obtained therefrom and to the use of said PFPE polymers as intermediate compounds for the manufacture of additives for plastic and glass coating.

Method of making mixture of polymers

The present invention relates to a process for the synthesis of partially and fully fluorinated polyether (PFPE) polymers, to PFPE polymers obtained therefrom and to the use of said PFPE polymers as intermediate compounds for the manufacture of additives for plastic and glass coating.

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 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 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 process for the synthesis of (per)fluoropolyether polymers and to certain novel (per)fluoropolyether polymers. The present invention also relates to the use 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).

A method for the manufacture of perfluorinated compounds is herein disclosed. In particular, the method is useful for the manufacture of perfluorooxyalkyl carboxylic acid salts which can be used as surfactants. The method envisages the fluorination or a fluoroformate of an alcohol comprising a &#x2014;CHOCH-moiety at a temperature equal to or higher than 20&#xb0; C. and allows obtaining high yields and selectivity.

Method for the manufacture of fluorinated compounds

The invention relates to a process for the manufacture of a-iodoperfluoroalkanes and &#x3b1;,&#x3c9;-diiodoperfluoroalkanes of general formula: (1) A(CF)1, wherein: A is selected from F, CFand I and n is an integer equal to or higher than 1, with the proviso that, when A is F, n is an integer higher than 1 said process comprising heating a mixture [mixture (M1)] containing: &#x2014;a compound selected from I, CFI, CFCFI and CFI; &#x2014;TFE; &#x2014;and COat definite temperatures and concentrations of CO.

Process for the manufacture of &#x3b1;-iodoperfluoroalkanes and &#x3b1;,&#x3c9;-diiodoperfluoroalkanes

A process for fluorinating hydrocarbon compounds, which comprises:

Process for producing fluorinated organic compounds

The invention relates to (per)fluoropolyether block copolymers comprising: A) a fluoropolyoxyalkylene segment (chain R) comprising one or more units of formula (CHXCFCFO)&#x2014; in which X is hydrogen or fluorine; B) a (per)fluoropolyoxyalkylene segment (chain Rf), that is to say a segment comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, said (per)fluoropolyoxyalkylene segment being different from chain Rand having a molecular weight higher than 400 g/mol. These copolymers are endowed with improves lubricant properties or with improved water and oil-repellence properties.

(per)fluoropolyether block copolymers

A process for reducing the number of unstable end-groups in a fluorinated polymer is disclosed, said process comprising reacting a fluorinated polymer comprising unstable end-groups with fluorine in the presence of at least one (per)haloolefin comprising at least one carbon-carbon double bond and having at least one fluorine or chlorine atom on either one of the carbon atoms of said double bond. The fluorinated polymer may be selected from those polymers comprising recurring units derived from at least one ethylenically unsaturated fluorinated monomer or from fluorinated polyethers.

Process for reducing unstable end-groups in fluorinated polymers

A process for producing a perfluorinated functional compound comprises the steps of:

Process for producing perfluorinated organic compounds

VDF-based curable fluoroelastomers having glass transition temperature lower than &#x2212;35&#xb0; C. and an amount of &#x2014;COF end groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application.

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Milan, Italy

Marco Galimberti