Process for preparing a fire resistant polycarbonate composition
AssigneeGeneral Electric Company
InventorsTheodorus Lambertus Hoeks, Adrianus A. M. Kusters
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Abstract
A process for producing a fire resistant polycarbonate composition comprises preparing an aqueous solution of a flame retardant salt; and compounding the aqueous solution of the flame retardant salt with a polycarbonate composition to form the fire resistant polycarbonate composition. The process reduces the level of haze, color and inclusions compared to fire resistant polycarbonate compositions compounded with the same flame retardant salt in solid form.
Claims22
A process for producing a fire resistant polycarbonate composition, comprising:
- compounding an aqueous solution of a flame retardant salt with a polycarbonate composition to form the fire resistant polycarbonate composition.
A process for reducing haze in a fire resistant polycarbonate composition, comprising:
- compounding an aqueous solution of a flame retardant salt with a polycarbonate composition to form the fire resistant polycarbonate composition, wherein the haze is reduced compared to compounding the flame retardant salt in solid form with the polycarbonate composition.
A process for reducing color in a fire resistant polycarbonate composition, comprising:
- compounding an aqueous solution of a flame retardant salt with a polycarbonate composition to form the fire resistant polycarbonate composition, wherein a yellowness index is reduced compared to compounding the flame retardant salt in solid form with the polycarbonate composition.
A process for reducing inclusions in an extruded sheet of a fire resistant polycarbonate composition, comprising:
- compounding an aqueous solution of a flame retardant salt with a polycarbonate composition to form the fire resistant polycarbonate composition, wherein the number of inclusions is reduced compared to compounding the flame retardant salt in solid form with the polycarbonate composition.
Dependencies are inferred from the claim text.