Benzoxazolyl optical brightners in and for thermoplastic compositions
    3.
    发明授权
    Benzoxazolyl optical brightners in and for thermoplastic compositions 失效
    用于热塑性组合物的苯并恶唑光学增亮剂

    公开(公告)号:US5512620A

    公开(公告)日:1996-04-30

    申请号:US238288

    申请日:1994-05-05

    CPC分类号: C08K5/45 Y10S430/134

    摘要: Benzoxazolyl brightner compounds and thermoplastic combinations containing such are provided herein. The thermoplastic compositions comprise a thermoplastic resin, a phosphite heat stabilizer present in reduced levels, a brightner present in reduced levels and a pigment. Preferably the thermoplastic resin composition is transparent in nature. The compositions are useful for making molded and blow molded articles which require high levels of transparency, for example, glazing materials such thermoplastic windows. The composition exhibits enhanced appearance, namely a bright natural color in combination with low levels of yellowness by utilizing in combination reduced levels of phosphite and reduced levels of brightner, with moderate levels of pigment.

    摘要翻译: 本文提供了苯并恶唑基光亮剂化合物和含有这些化合物的热塑性组合物。 热塑性组合物包括热塑性树脂,以降低的水平存在的亚磷酸酯热稳定剂,以降低的水平存在的增白剂和颜料。 优选地,热塑性树脂组合物在本质上是透明的。 该组合物可用于制造需要高水平透明度的模制和吹塑制品,例如玻璃材料如热塑性窗。 组合物表现出增强的外观,即通过以中等水平的颜料组合降低亚磷酸盐水平和降低水平的光亮剂,结合低水平黄色而具有明亮的天然色彩。

    Compositions of siloxane polycarbonate block copolymers and high heat
polycarbonates
    4.
    发明授权
    Compositions of siloxane polycarbonate block copolymers and high heat polycarbonates 失效
    硅氧烷聚碳酸酯嵌段共聚物和高热聚碳酸酯的组合物

    公开(公告)号:US5455310A

    公开(公告)日:1995-10-03

    申请号:US290453

    申请日:1994-08-15

    CPC分类号: C08L69/00 C08L83/10

    摘要: A thermoplastic composition which comprises a siloxane polycarbonate block copolymer wherein the polysiloxane segments of the copolymer are of the formula: ##STR1## where R.sup.1, R.sup.2, Y, D, A, X, A' and E are as defined herein, and high heat polycarbonates containing recurring or repeating polycarbonate units of the formula: ##STR2## wherein Z is --O--, --N(R.sup.3)-- or a mixture thereof and R.sup.3 is selected from hydrogen, hydrocarbyl and halogen-substituted hydrocarbyl.

    摘要翻译: 一种热塑性组合物,其包含硅氧烷聚碳酸酯嵌段共聚物,其中所述共聚物的聚硅氧烷链段具有下式:其中R 1,R 2,Y,D,A,X(IIA)或(IIB) ,A'和E如本文所定义,并且含有下式的重复或重复的聚碳酸酯单元的高热聚碳酸酯:其中Z为-O - , - N(R3) - 或其混合物,R3为 选自氢,烃基和卤素取代的烃基。

    Terpolymer having aliphatic polyester, polysiloxane and polycarbonate
    5.
    发明授权
    Terpolymer having aliphatic polyester, polysiloxane and polycarbonate 失效
    具有脂肪族聚酯,聚硅氧烷和聚碳酸酯的三元共聚物

    公开(公告)号:US5608026A

    公开(公告)日:1997-03-04

    申请号:US204699

    申请日:1994-03-02

    CPC分类号: C08G77/448

    摘要: Block condensation copolymers with improved processability, low temperature impact strength and solvent resistance have a polysiloxane block such as ##STR1## where D is about 10 to 120, and a polycarbonate-aliphatic polyester block. Such polymers are made by an interfacial reaction of phosgene with a bisphenol, a phenol-terminated siloxane, and an aliphatic dicarboxylic acid salt.

    摘要翻译: 具有改进的加工性,低温冲击强度和耐溶剂性的嵌段缩合共聚物具有聚硅氧烷嵌段如120,和聚碳酸酯 - 脂族聚酯嵌段。 这种聚合物通过光气与双酚,苯酚封端的硅氧烷和脂族二羧酸盐的界面反应制备。

    FLAME RETARDANT POLY(SILOXANE) COPOLYMER COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES FORMED THEREFROM
    8.
    发明申请
    FLAME RETARDANT POLY(SILOXANE) COPOLYMER COMPOSITIONS, METHODS OF MANUFACTURE, AND ARTICLES FORMED THEREFROM 有权
    阻燃聚合物(硅氧烷)共聚物组合物,制造方法及其形成的制品

    公开(公告)号:US20120251750A1

    公开(公告)日:2012-10-04

    申请号:US13251122

    申请日:2011-09-30

    IPC分类号: B32B1/08 B32B9/04 C08L83/10

    摘要: A poly(siloxane) copolymer composition comprising: a first polymer comprising a first repeating unit, and a poly(siloxane) block unit, a second polymer different from the first polymer and comprising of bromine; and optionally, one or more third polymers different from the first polymer and second polymer; wherein siloxane 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 optional one or more 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: 一种聚(硅氧烷)共聚物组合物,其包含:包含第一重复单元的第一聚合物和聚(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; 和任选的一种或多种不同于第一聚合物和第二聚合物的第三聚合物; 其中硅氧烷单元以至少0.3重量%的量存在于组合物中,并且溴以至少7.8重量%的量存在于组合物中,各自基于第一,第二, 和任选的一种或多种第三聚合物; 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。

    Terpolymer having aromatic polyester, polysiloxane and polycarbonate
segments
    9.
    发明授权
    Terpolymer having aromatic polyester, polysiloxane and polycarbonate segments 失效
    具有芳族聚酯,聚硅氧烷和聚碳酸酯链段的三元共聚物

    公开(公告)号:US5932677A

    公开(公告)日:1999-08-03

    申请号:US68445

    申请日:1993-05-27

    CPC分类号: C08G77/448

    摘要: Terpolymers suitable as molding resins are provided having aromatic polyester segments polycarbonate segments and polysiloxane segments of the structure ##STR1## where R.sup.1, R.sup.2, Y and D are as defined herein, and where the weight percentage of polyester and polycarbonate segments is from 50 to 99%, preferably 92 to 96%, and the weight percentage of polysiloxane segments is from 50 to 1%, preferably from 8 to 4%. Also provided is a one-step process to prepare the new terpolymers by reacting together a siloxane, a bisphenol and an aromatic dicarboxylic acid halide.

    摘要翻译: 提供适合作为模制树脂的三元共聚物,其具有芳族聚酯链段聚碳酸酯链段和结构的聚硅氧烷链段,其中R 1,R 2,Y和D如本文所定义,并且其中聚酯和聚碳酸酯链段的重量百分数为50-99% 92〜96%,聚硅氧烷链段的重量百分比为50〜1%,优选为8〜4%。 还提供了通过使硅氧烷,双酚和芳族二羧酸卤化物反应而制备新的三元共聚物的一步法。