公开(公告)号：US20250051563A1

公开(公告)日：2025-02-13

申请号：US18716617

申请日：2022-12-07

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Fabrizio Micciche ,  Remco Wirtz ,  Robert Dirk van de Grampel ,  Mark Adrianus Johannes van der Mee

IPC: C08L69/00 ,  C08K5/524 ,  C08K5/5399

Abstract: A polycarbonate composition suitable for thin-wall applications comprises: a linear homopolycarbonate; a poly(carbonate-siloxane) present in an amount effective to provide 0.1 to 10 wt % siloxane, based on the total weight of the composition, a linear polycarbonate having pendant ester groups in an amount effective to provide 0.1 to 5.0 mole % repeating units derived from C a monomer having a pendant ester group based on the total moles of the composition; and a flame retardant wherein a molded sample N of the composition has a UL-94 flame test rating of VO at a thickness of 1.5 mm.

公开(公告)号：US20230174778A1

公开(公告)日：2023-06-08

申请号：US18076879

申请日：2022-12-07

Applicant: SHPP Global Technologies B.V.

Inventor： Fabrizio Micciche ,  Remco Wirtz ,  Robert Dirk van de Grampel ,  Fabio Di Lena ,  Mark Adrianus Johannes van der Mee

IPC: C08L69/00

CPC classification number: C08L69/00 ,  C08L2205/035 ,  C08L2205/025

Abstract: Polycarbonate compositions comprising a linear homopolycarbonate, a poly(phthalate-carbonate), or a combination thereof; a poly(carbonate-siloxane) component present in an amount effective to provide 0.1 to 10 wt % siloxane, based on the total weight of the composition, comprising: a poly(carbonate-siloxane) having a 30-70 wt % siloxane content, a combination of a poly(carbonate-siloxane) having a 10 wt % or less siloxane content and a poly(carbonate-siloxane) having greater than 10 wt % to less than 30 wt % siloxane content, or a combination thereof; a linear polycarbonate comprising 0.1-4.0 mole % repeating units derived from a monomer having a pendant ester group based on the total moles of the composition; optionally, a reinforcing composition comprising glass fibers, a mineral filler, or a combination thereof; and a flame retardant comprising an aromatic organophosphorous compound can have low smoke density characteristics (e.g., a DS-4 measured according to ISO5659-2) and low heat release characteristics, (e.g., MAHRE measured according to ISO5660-1).