MOLDABLE FIRE-RESISTANT TREATED PLASTIC PLATE

PURPOSE: To obtain a plastic material satisfying an OSU test and having a high impact strength by providing a core layer containing a predetermined amt. of a flameproof additive and a coating layer containing a slight amt. of the flameproof additive. CONSTITUTION: A core layer with a thickness of 1-...

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Hauptverfasser: OTSUTOO DEIRORU, GIYUNTAA SHIYURAIAA, PEETAA RUDORUFU TSUIGETEI, UBUE YAKOPUSEN, BUORUFUGANGU EBERURE, GERUHARUTO HAINTSU, KURAUSU HOFUMAN, HANSU ROORENTSU, ETSUKUHARUTO KOTSUHO, HERUMAN BUTSUHERUTO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE: To obtain a plastic material satisfying an OSU test and having a high impact strength by providing a core layer containing a predetermined amt. of a flameproof additive and a coating layer containing a slight amt. of the flameproof additive. CONSTITUTION: A core layer with a thickness of 1-10 mm comprising a thermoplastic resin containing at least 0.5 wt.% of a flameproof additive and the coating layers with a thickness of at least 0.05 mm comprising a thermoplastic resin containing the flameproof additive in amt. slightly smaller than that thereof in the core layer bonded on both surfaces of the core layer are provided to obtain a moldable flameproofed plastic plate. By this constitution, an OSU test value is lowered and the reduction of impact strength by the content of the flameproof additive is eliminated.