Invention Application
- Patent Title: TRANSPARENT ULTRA-LOW HALOGEN FLAME RETARDANT POLYCARBONATE COMPOSITIONS WITH V0 AT 0.6 MM
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Application No.: US17623468Application Date: 2020-06-26
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Publication No.: US20220372281A1Publication Date: 2022-11-24
- Inventor: Tony Farrell
- Applicant: SHPP Global Technologies B.V.
- Applicant Address: NL Bergen Op Zoom
- Assignee: SHPP Global Technologies B.V.
- Current Assignee: SHPP Global Technologies B.V.
- Current Assignee Address: NL Bergen Op Zoom
- Priority: EP19183245.0 20190628
- International Application: PCT/IB2020/056088 WO 20200626
- Main IPC: C08L69/00
- IPC: C08L69/00

Abstract:
A flame retardant composition comprising: a poly(carbonate-bisphenol phthalate ester); an organophosphorous compound wherein the organophosphorous compound is present in an amount effective to provide 0.5-0.9 wt % of added phosphorous, based on the total weight of the composition; and a poly(carbonate-monoarylate phthalate ester), wherein the composition has a bromine or chlorine content of less than or equal to 100 parts per million by weight, less than or equal to 75 parts per million by weight, or less than or equal to 50 parts per million by weight, based on the total parts by weight of the composition; and wherein a molded sample of the flame retardant composition has a UL 94 rating of V0 at a thickness of 0.6 millimeter, and a transmission of at least 70% according to ASTM D 1003 at a thickness of 1.0 millimeter.
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