PRODUCTION OF VINYL CHLORIDE RESIN COMPOSITION

• Main Authors: KAKEI HIROSHI, NAKADA YASUSHI, IWASE KAZUNORI, AONO WATARU
• Format: Patent
• Language: English
• Published: 25.06.1991
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PURPOSE:To obtain the title composition which is excellent in heat stability and flow upon heating, can be easily injection-molded and can give a molding excellent in flame retardancy, chemical resistance, heat resistance, etc., by mixing an ABS resin powder containing a specific antioxidant adsorbed thereto with a vinyl chloride resin. CONSTITUTION:An ABS resin powder containing adsorbed thereto at least one antioxidant selected from the group consisting of a phenolic antioxidant (e.g. di-t-butylhydroxytoluene), a phosphitic antioxidant [e.g. tris(2,4-di-t- butylphenyl) phosphite] and a thiophenol antioxidant (e.g. dilauryl thiodipropionate) is mixed with a vinyl chloride resin. A vinyl chloride resin has a drawback of low heat resistance though it is excellent in flame retardance, chemical resistance, weathering resistance, etc. Because this composition contains the ABS resin containing the above antioxidant absorbed thereto, it is excellent in heat stability and flow upon heating, can be easily injection-molded, can form a molding excellent in flame retardancy, heat resistance, etc., and can be desirably used for housings of OA machines, automobile trims, etc.