Improved process for making polymaleic anhydride

A process for the manufacture of polymaleic anhydride which comprises polymerising maleic anhydride in xylene as solvent, the ortho-isomer content of the xylene being up to 99%, and using di-tertiary butyl peroxide as polymerisation catalyst to give good yields and liquid products which can be easil...

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Bibliographische Detailangaben
Hauptverfasser:	RICHARDSON, NORMAN, JONES, THOMAS IVOR, MILES, PETER
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	A process for the manufacture of polymaleic anhydride which comprises polymerising maleic anhydride in xylene as solvent, the ortho-isomer content of the xylene being up to 99%, and using di-tertiary butyl peroxide as polymerisation catalyst to give good yields and liquid products which can be easily separated.