PRODUCTION OF POLYMETHACRYLATE MOLDING MATERIAL WITH HIGH HEAT DISTORTION TEMPERATURE AND HIGH STABILITY TO THERMAL DECOMPOSITION

PRODUCTION OF POLYMETHACRYLATE MOLDING MATERIAL WITH HIGH HEAT DISTORTION TEMPERATURE AND HIGH STABILITY TO THERMAL DECOMPOSITION

The invention relates to a polymerisation process for the preparation of polymethacrylate moulding compositions having a high heat deflection temperature (heat resistance) and high stability to thermal degradation, in which at least 70% by weight of the polymethacrylate moulding composition is prepa...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: URURITSUHI TERUBURATSUKU, BUERUNAA JIOORU, MIHIYAERU BUITSUKAA, KURAUSU KOORAREUSUKII
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
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to a polymerisation process for the preparation of polymethacrylate moulding compositions having a high heat deflection temperature (heat resistance) and high stability to thermal degradation, in which at least 70% by weight of the polymethacrylate moulding composition is prepared at a monomer concentration of at least 5 mol per litre of reaction mixture, which preferably contains the monomers, the polymer formed therefrom and further polymerization auxiliaries. The reaction is preferably carried out batchwise (discontinuously), for example in a stirred reactor operated in batch mode.