METHODS OF MELT BLENDING FLAME RETARDANT AND POLYMERIC COMPOSITIONS

• Main Authors: Shah, Andrew B, Lim, Chongsoo, Chaudhary, Bharat I
• Format: Patent
• Language: English
• Published: 27.04.2023
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CABLES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; CORRECTING FLUIDS; DYES; ELECTRICITY; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; INSULATORS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

A method of melt blending a flame-retardant composition includes the steps: (a) heating a polymeric brominated flame retardant to a temperature of 5° C. or greater above the polymeric brominated flame retardants glass transition temperature as measured by Differential Scanning calorimetry, wherein the polymeric brominated flame retardant has a Temperature of 5% Mass Loss from 300° C. to 700° C. as measured according to Thermogravimetric Analysis; (b) mixing a polyolefin into the polymeric brominated flame retardant after step (a); and (c) mixing an inorganic filler into the polyolefin and polymeric brominated flame retardant after step (b) to form the flame-retardant composition.