RUBBER-MODIFIED STYRENE RESIN, PROCESS FOR PRODUCING THE SAME, AND SHEET OF THE RESIN

Provided is a rubber-modified styrenic resin with particles of a rubbery polymer dispersed therein. The continuous phase of the resin has a weight-average molecular weight (MwL) falling between 180,000 and 280,000, and its weight-average molecular weight and the 1 cm drawdown time (sec) of the resin...

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Bibliographische Detailangaben
Hauptverfasser:	YAZAKI, JUN, TAKEUCHI, SATOSHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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:	Provided is a rubber-modified styrenic resin with particles of a rubbery polymer dispersed therein. The continuous phase of the resin has a weight-average molecular weight (MwL) falling between 180,000 and 280,000, and its weight-average molecular weight and the 1 cm drawdown time (sec) of the resin sheet satisfy a formula, 1 cm drawdown time (sec) > (MwL/10 ) - 4.0. Also provided are an effective method for producing the resin, and a rubber-modified styrenic resin sheet produced by molding the resin. The resin is suitable for molding it into sheets. The resin sheet ensures a satisfactorily long time for its thermoforming, and therefore has good thermoforming stability.