CHEMICALLY-RESISTANT FLAME RETARDANT COMPOSITIONS

    公开(公告)号:US20230323110A1

    公开(公告)日:2023-10-12

    申请号:US18003360

    申请日:2021-06-30

    CPC classification number: C08L67/02 C08L2205/025 C08L2205/035

    Abstract: Thermoplastic compositions, methods of making the compositions, and articles including the compositions are described. The thermoplastic compositions can contain 30 wt.% to 70 wt.% of a semi-crystalline polyester, 10 wt.% to 50 wt.% of a halogenated polycarbonate, 3 wt.% to 25 wt.% of a first poly(carbonate-siloxane) copolymer having a siloxane content of less than 30 wt.%, wherein the siloxane content is based on the total weight of the first poly(carbonate-siloxane) copolymer, and 3 wt.% to 25 wt.% of a second poly(carbonate-siloxane) copolymer having a siloxane content of greater than 30 wt.%, wherein the siloxane content is based on the total weight of the second poly(carbonate-siloxane) copolymer.

    HIGH HEAT POLYCARBONATE COMPOSITIONS INCLUDING RECYCLED THERMOPLASTIC CONTENT

    公开(公告)号:US20220064439A1

    公开(公告)日:2022-03-03

    申请号:US17423213

    申请日:2020-01-17

    Abstract: Thermoplastic compositions include: (a) from about 20 wt % to about 50 wt % post-consumer recycled polycarbonate (PCR-PC); (b) from about 5 wt % to about 25 wt % of a filler component; (c) from about 4 wt % to about 7 wt % of a phosphazene component; (d) from about 20 wt % to about 65 wt % of a polycarbonate copolymer component; and (e) from about 1 wt % to about 20 wt % one or more additional components. The polycarbonate copolymer component includes bisphenol-A and a monomer comprising one or more of 3,3-Bis(4-hydroxyphenyl)-2-phenyl-2,3-dihydro-isoindol-1-one (PPPBP), 4-4-(3-3-5 trimethylcyclohexane-1-1diyl)diphenol (BPI), 4,4′-(1-Methyl Ethyl) 1-3-cyclohexandiyl) Bis-Phenol (BHPM), 1,1-Bis(4-hydroxy-3-methyl phenyl) cyclohexane (DMBPC); 4-[1-(4-hydroxyphenyl)cyclododecyl]phenol (Red Cross), bisphenol based on cyclooctadiene, bisphenol based on isophorone nitrile, and combinations thereof. The thermoplastic composition exhibits improved heat properties, including but not limited to heat deflection temperature.

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