Process for the manufacture of polyol perfluoropolyether derivative

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United States of America Patent

PATENT NO 8513471
APP PUB NO 20100240930A1
SERIAL NO

12681151

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A process for the manufacture of a polyol (per)fluoropolyether derivative comprising:

    1. reacting at least one triol having two protected hydroxyl functions and a free hydroxyl group with an activating agent, to yield an activated protected triol;2. reacting the activated protected triol with a functional (per)fluoropolyether derivative of formula:T2-O—Rf-T1,wherein:Rf represents a fluoropolyoxyalkene chain which is a fluorocarbon segment comprising ether linkages in main chain;T1 and T2, equal to or different from each other, are independently selected from non-functional groups of formula:—CF3, —CF2—CF3, —CF2Cl, —CF2CF2Cl, —CF2—COF, —COF: andfunctional hydroxyl groups comprising at least one hydroxyl group, with the provisio that at least one of T1 and T2 is a functional hydroxyl group as above detailed to yield a protected polyol (per)fluoropolyether derivative; and 3. deprotecting the protected polyol (per)fluoropolyether derivative to yield the polyol (per)fluoropolyether derivative.

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Patent Owner(s)

  • SOLVAY SOLEXIS S.P.A.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Di, Meo Antonella Caronno Pertusella, IT 6 16
Gavezotti, Piero Milan, IT 26 135
Picozzi, Rosaldo Cesate, IT 17 50
Tonelli, Claudio Sesto San Giovanni, IT 74 1018
Vezzulli, Graziano Giuseppe Milan, IT 4 6

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