Composition and method for controlling polymerization rate of cyclic
polycarbonate oligomer with encapsulated catalyst
    1.
    发明授权
    Composition and method for controlling polymerization rate of cyclic polycarbonate oligomer with encapsulated catalyst 失效
    用封装催化剂控制环状聚碳酸酯低聚物的聚合速度的组成和方法

    公开(公告)号:US4755588A

    公开(公告)日:1988-07-05

    申请号:US899375

    申请日:1986-08-22

    IPC分类号: C08G64/20 C08G64/30 C08G63/62

    CPC分类号: C08G64/30

    摘要: The polymerization rate of a cyclic polycarbonate oligomer composition to linear polycarbonates is controlled by encapsulating a polycarbonate formation catalyst in a thermoplastic polymer which is soluble or stably dispersible in said oligomer compositions at elevated temperatures; blending the encapsulated catalyst with the oligomer composition under non-polymerization conditions; and heating the blend to a temperature at which polymerization takes place. Among the polymers suitable for encapsulating the catalyst are polyetherimides.

    摘要翻译: 环状聚碳酸酯低聚物组合物对线性聚碳酸酯的聚合速率通过将聚碳酸酯形成催化剂包封在热可塑性聚合物中来控制,热塑性聚合物在高温下可溶或稳定地分散在所述低聚物组合物中; 在非聚合条件下将包封的催化剂与低聚物组合物共混; 并将共混物加热至发生聚合的温度。 适用于包封催化剂的聚合物中有聚醚酰亚胺。

    FLAME RETARDANT POLY(SILOXANE-ETHERIMIDE) COPOLYMER COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES FORMED THEREFROM
    3.
    发明申请
    FLAME RETARDANT POLY(SILOXANE-ETHERIMIDE) COPOLYMER COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES FORMED THEREFROM 有权
    阻燃聚合物(SILOXANE-ETHERIMIDE)共聚物组合物,制造方法及其形成的制品

    公开(公告)号:US20130085240A1

    公开(公告)日:2013-04-04

    申请号:US13251130

    申请日:2011-09-30

    IPC分类号: C08G59/06

    摘要: A composition comprising: a first polymer comprising a poly(etherimide-siloxane) copolymer comprising (a) a repeating polyetherimide unit, and (b) a poly(siloxane) block unit, a second polymer different from the first polymer and comprising bromine; and optionally, a third polymer comprising a polycarbonate different from the first polymer and second polymer; wherein polysiloxane block units are present in the composition in an amount of at least 0.3 wt %, and bromine is present in the composition in an amount of at least 7.8 wt %, each based on the sum of the wt % of the first, second, and third polymers; and further wherein an article molded from the composition has an OSU integrated 2 minute heat release test value of less than 65 kW-min/m2 and a peak heat release rate of less than 65 kW/m2, and an E662 smoke test Dmax value of less than 200.

    摘要翻译: 一种组合物,其包含:包含(a)重复聚醚酰亚胺单元的聚(醚酰亚胺 - 硅氧烷)共聚物的第一聚合物和(b)聚(硅氧烷)嵌段单元,不同于第一聚合物并包含溴的第二聚合物; 和任选地,包含不同于第一聚合物和第二聚合物的聚碳酸酯的第三聚合物; 其中聚硅氧烷嵌段单元以至少0.3重量%的量存在于组合物中,并且组合物中溴以至少7.8重量%的量存在,每个量基于第一个,第二个 和第三聚合物; 并且其中由所述组合物成型的制品具有小于65kW-min / m 2的OSU集成的2分钟的热释放试验值和小于65kW / m 2的峰值放热率,以及E662烟雾试验Dmax值 小于200。

    Marine vehicle component comprising flame retardant compositions and methods of manufacture
    4.
    发明申请
    Marine vehicle component comprising flame retardant compositions and methods of manufacture 有权
    包含阻燃剂组合物和制造方法的船用载体组分

    公开(公告)号:US20120269994A1

    公开(公告)日:2012-10-25

    申请号:US13436782

    申请日:2012-03-30

    摘要: A marine vehicle component wherein the component is a partition or a light cover, and wherein the marine vehicle component is molded or formed from a thermoplastic polymer composition comprising a siloxane-containing copolymer in an amount effective to provide a total of 0.2 to 6.5 wt % of siloxane units based on the total weight of the polymers in the thermoplastic polymer composition, a bromine-containing polymer in an amount effective to provide 9 to 13 wt % of bromine, based on the total weight of the polymers in the thermoplastic polymer composition, and optionally a third polymer, wherein the wt % of the siloxane-containing copolymer, the bromine-containing polymer, and the optional third polymer, sum to 100 wt %, and 0.05 to 10 wt % of a light diffuser additive, based on the total weight of polymers in the thermoplastic polymer composition.

    摘要翻译: 一种船用车辆部件,其中所述部件是隔板或灯罩,并且其中所述船用车辆部件由热塑性聚合物组合物模制或形成,所述热塑性聚合物组合物包含含有硅氧烷的共聚物,其量有效地提供总计为0.2至6.5重量% 的基于热塑性聚合物组合物中的聚合物总重量的硅氧烷单元,基于热塑性聚合物组合物中聚合物的总重量,有效提供9至13重量%溴的含溴聚合物, 和任选的第三聚合物,其中基于所述第三聚合物,所述含硅氧烷的共聚物,含溴聚合物和任选的第三聚合物的总重量为100重量%,和0.05至10重量%的光漫射添加剂 热塑性聚合物组合物中聚合物的总重量。