PRODUCTION OF FLAME-RETARDANT CROSS-LINKED MOLDINGS

PURPOSE:A compound of a silyl-modified polyolefin and a flame-retardant is extruded and the product is brought into contact with a siloxane condensation catalyst and water, thus permitting sufficient kneading and giving moldings with increased crosslinking degree and good appearance. CONSTITUTION:A...

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Bibliographische Detailangaben
Hauptverfasser:	ANDOU YOSHIYUKI, TAKAHATA NORIO, SATOU MASAKATSU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:A compound of a silyl-modified polyolefin and a flame-retardant is extruded and the product is brought into contact with a siloxane condensation catalyst and water, thus permitting sufficient kneading and giving moldings with increased crosslinking degree and good appearance. CONSTITUTION:A polyolefin is allowed to react with a mixture of a silane and a radical initiator with heat and the resultant silyl-modified polyolefin is mixed with a flame-retardant. Then, the compound is subjected to extrusion molding and the products are brought into contact with a siloxane condensation catalyst and water. As the polyolefin, is used polyethylene or ethylene-vinyl acetate copolymer; as a silane, vinyltrimethoxysilane and as the condensation catalyst, dibutyltin dilaurate.