Sabic Global Technologies B.v.

Peter Hendrikus Theodorus Vollenberg

Jean-Francois Morizur

Disclosed herein is a composition comprising: a flame retardant comprising a sulfonate salt and three polycarbonates. The first polycarbonate has a branching level of greater than or equal to 2%, a weight average molecular weight of 20,000 g/mole to 55,000 g/mole and a peak melt viscosity of greater than or equal to 25,000 poise. The second polycarbonate has a glass transition temperature greater than or equal to 170&#xb0; C. The third polycarbonate has a branching level of 0 to less than 2% and a molecular weight of 17,000 to 40,000 g/mol. The composition has a heat distortion temperature greater than or equal to 145&#xb0; C., ductility greater than or equal to 90% at 23&#xb0; C., multi-axial impact greater than or equal to 50 Joules per meter (J/m) at 23&#xb0; C., and a molded article of the composition has a UL 94 V0 rating at a thickness of 1.5 mm.

Compositions and articles of manufacture containing branched polycarbonate

Disclosed herein is a light emitting device, comprising: a lighting element located in a housing, wherein the housing is formed from a plastic composition comprising: a conversion material, and a polycarbonate composition comprising: a flame retardant comprising a sulfonate salt and three polycarbonates. The first polycarbonate has a branching level of greater than or equal to 2%, a weight average molecular weight of 20,000 g/mole to 55,000 g/mole and a peak melt viscosity of greater than or equal to 25,000 poise. The second polycarbonate has a glass transition temperature greater than or equal to 170&#xb0; C. The third polycarbonate has a branching level of 0 to less than 2% and a molecular weight of 17,000 to 40,000 g/mol.

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Eindhoven, Netherlands

Peter Hendrikus Theodorus Vollenberg