Polystyrene resin composition and light-guild plate formed from the same

The present invention provides a polystyrenic resin composition, which has low water absorption, excellent in suppression of product bending or size exchanging, excellent in photo and releasing properties, and suitable for the production of shaped light-guild plate, and a light-guild plate formed fr...

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Bibliographische Detailangaben
Hauptverfasser:	YAZAKI, JUN, YAMASHIRO, KOHEI, TOYAMA, MITSUTOSHI, SUZUKI, JUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	The present invention provides a polystyrenic resin composition, which has low water absorption, excellent in suppression of product bending or size exchanging, excellent in photo and releasing properties, and suitable for the production of shaped light-guild plate, and a light-guild plate formed from the same. As to the polystyrenic resin composition of the present invention, the polystyrenic resin composition comprises 100 mass by part of styrenic resin and 0.02-0.2 mass by part of phosphoric anti-oxidant, in which the content of 4-t-butylcatechol is 1-6 g per 1g of the styrenic resin.