Migration-free, halogen-free, flame retardant thermoplastic polyurethane compositions

• Main Authors: LU, LAN, DENG, QIN, ZHU, LU JOURNEY, LI, BIN, CHEN, GIVEN JING, GUO, DAVID H
• Format: Patent
• Language: Chinese; English
• Published: 16.10.2011
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; DYES; ELECTRICITY; INSULATORS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Halogen-free, thermoplastic polyurethane-based compositions having good mechanical and flame-retardant properties are provided. The compositions include flame-retardant aromatic organic phosphate compounds that do not exhibit migration in molded products, such as cable and wire jacketing and insulation. The compositions include a continuous resin phase comprising a thermoplastic polyurethane elastomer, at least one aromatic organic phosphate flame retardant having a melting point of at least 50 DEG C and an inorganic hydrate flame retardant.