IMPROVED METHOD OF MODIFYING A POLYCARBONATE DURING A MELT POLYMERIZATION

In an embodiment, a method for the manufacture of a melt polycarbonate, comprises melt polymerizing a feed stream in a final polymerization unit to form a polycarbonate stream comprising a polycarbonate; controlling a scission stream flowrate of a chain scission stream comprising the chain scission...

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Bibliographische Detailangaben
Hauptverfasser:	MACIAN AVILES, Isabel, OLMEDO FERNANDEZ, Fernando, VIC FERNANDEZ, Ignacio
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	In an embodiment, a method for the manufacture of a melt polycarbonate, comprises melt polymerizing a feed stream in a final polymerization unit to form a polycarbonate stream comprising a polycarbonate; controlling a scission stream flowrate of a chain scission stream comprising the chain scission agent; and mixing the chain scission stream and the polycarbonate stream to form an adjusted stream comprising a reduced molecular weight polycarbonate.