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    POLYCARBONATE COPOLYMER BLENDS, ARTICLES FORMED THEREFROM, AND METHODS OF MANUFACTURE
    72.
    发明公开
    POLYCARBONATE COPOLYMER BLENDS, ARTICLES FORMED THEREFROM, AND METHODS OF MANUFACTURE 审中-公开

    公开(公告)号：EP3530700A1

    公开(公告)日：2019-08-28

    申请号：EP18157924.4

    申请日：2018-02-21

    申请人： SABIC Global Technologies B.V.

    发明人： SYBERT, PAUL DEAN ,  YAMAGUCHI, NORIMITSU ,  OBERHOLTZER, JACOB LEE ,  MAHOOD, JAMES ALAN

    IPC分类号： C08L79/08

    摘要： A polymer blend including 5 to 95 weight percent of a poly(ester-carbonate-carbonate) comprising 40 to 95 mole percent of ester units comprising low heat bisphenol groups and high heat bisphenol groups, wherein the ester units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of ester units in the poly(ester-carbonate-carbonate), and 5 to 60 mole percent of carbonate units comprising the low heat bisphenol groups and the high heat bisphenol groups, wherein the carbonate units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of carbonate units in the poly(ester-carbonate-carbonate); and 5 to 95 weight percent of a poly(etherimide), wherein the weight percent of each polymer is based on the total weight of the polymers in the blend, and a molded 0.125-inch thick ASTM tensile bar comprising the polymer blend has a haze value of less than 25% as determined according to ASTM D1003 using the color space CIE1931 (Illuminant C and a 2° observer).

    THICK FILM HIGH TEMPERATURE THERMOPLASTIC INSULATED HEATING ELEMENT
    80.
    发明公开
    THICK FILM HIGH TEMPERATURE THERMOPLASTIC INSULATED HEATING ELEMENT 审中-公开

    公开(公告)号：EP3457813A1

    公开(公告)日：2019-03-20

    申请号：EP18180308.1

    申请日：2009-04-21

    申请人： Datec Coating Corporation

    发明人： OLDING, Timothy Russell ,  RUGGIERO, Mary Ann

    IPC分类号： H05B3/10 ,  C08L71/10 ,  C08L79/08 ,  C09D5/25 ,  H05B3/20

    摘要： The present invention provides an integrated thick film heating element on a substrate made from high temperature melt-flowable thermoplastic polymer/powder additive formulations which form an electrically insulating thermoplastic dielectric coating on the substrate, and electrically resistive lead free films and electrically conductive film formulations that are deposited and fired to form an integrated thick film heating element on a substrate at a processing temperature well below 600°C. This thick film heating element is formed on a substrate material coated first with the electrically insulating, filled melt flowable high temperature thermoplastic polymer/powder composite layer on which is deposited the electrically resistive lead free thick film that is capable of operating over a wide range of power densities for consumer and industrial heating element applications, with suitable electrical insulation properties under temperature cycling to for example 250°C.