发明名称 |
Procedimiento de fabricación de policarbonato a partir de dialquilcarbonato de dianhidrohexitol |
摘要 |
A process for manufacturing a polycarbonate, having a glass transition temperature greater than or equal to 50° C., includes: a step (1) of introducing into a reactor a monomer of formula (I) and R1 and R2 being identical or different alkyl groups; a step (2) of introducing into the reactor at least one cyclic diol or a mixture of diols (B) including at least 20 mol % of cyclic diols; a subsequent step (3) of polycondensation via transesterification of the mixture of monomers including the monomers (A) and (B); a step (4) of recovering the polycarbonate formed during step (3). |
申请公布号 |
ES2561002(T3) |
申请公布日期 |
2016.02.23 |
申请号 |
ES20120720254T |
申请日期 |
2012.04.05 |
申请人 |
Roquette Frères |
发明人 |
IBERT, Mathias;JOSIEN, Emilie;WYART, Hervé |
分类号 |
C08G64/02;C08G64/30 |
主分类号 |
C08G64/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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