Process for manufacturing polycarbonate from derivatives of dianhydrohexitols bearing two alkyl carbonate functions

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United States of America Patent

PATENT NO 8871895
APP PUB NO 20140031516A1
SERIAL NO

14110278

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Abstract

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A process for manufacturing polycarbonate includes:—a step (1) of introducing into a reactor a particular composition (A) of at least one dianhydrohexitol carbonate bearing two alkyl carbonate functions; a step (2) of introducing a diol or a mixture of diols (B); a subsequent step (3) of polycondensation by transesterification of the mixture of monomers including (A) and (B); a step (4) of recovering the polycarbonate formed during step (3).

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Patent Owner(s)

  • ROQUETTE FRERES

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ibert, Mathias La Chapelle d'armentieres, FR 30 47
Josien, Emilie St Venant, FR 4 13
Wyart, Herve Cuinchy, FR 14 87

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