Cross-linked polycarbonate resin with improved chemical and flame resistance
AssigneeSabic Innovative Plastics IP B.V.
InventorsJean-Francois Morizur, Paul Dean Sybert
Life of this patent
Estimating the term…
Abstract
Disclosed herein are compositions including a cross-linked polycarbonate. The cross-linked polycarbonate may be derived from a polycarbonate having about 0.5 mol % to about 5 mol % endcap groups derived from a monohydroxybenzophenone. A plaque including the composition can achieve a UL94 5VA rating. Also disclosed herein are articles including the compositions, methods of using the compositions, and processes for preparing the compositions.
Claims36
A composition comprising:
- a cross-linked polycarbonate, the cross-linked polycarbonate derived from a non-cross-linked polycarbonate comprising about 0.5 mol % to about 5 mol % endcap groups derived from a monohydroxybenzophenone;
- and
- a flame retardant;
- wherein a plaque comprising the composition achieves a UL94 5VA rating at a thickness of 3.0 mm (±10%) or less.
A composition comprising a cross-linked polycarbonate derived from a non-cross-linked polycarbonate comprising about 0.5 mol % to about 5 mol % endcap groups derived from a monohydroxybenzophenone;
- wherein a plaque comprising the composition, further comprising potassium perfluorobutane sulfonate (Rimar salt) in an amount of about 0.05 wt % to about 0.085 wt %, based on the total weight of the composition, achieves a UL94 5VA rating at a thickness of 3.0 mm (±10%) or less in the absence of a brominated and/or chlorinated flame retardant;
- and
- wherein the plaque comprising the composition has a transparency of 70 to 90% at a thickness of 3.2 mm, measured according to ASTM-D1003-00.
Dependencies are inferred from the claim text.