Ionizing radiation stable thermoplastic composition, method of making, and articles formed therefrom
    42.
    发明授权
    Ionizing radiation stable thermoplastic composition, method of making, and articles formed therefrom 有权
    电离辐射稳定的热塑性组合物,制备方法和由其形成的制品

    公开(公告)号:US07557153B2

    公开(公告)日:2009-07-07

    申请号:US11262640

    申请日:2005-10-31

    申请人: Brian Mullen

    发明人: Brian Mullen

    IPC分类号: C09D11/10

    摘要: A thermoplastic composition comprises a sulfonate end-capped polycarbonate of formula: Z-S(O)2—O-(-L-)m-O—S(O)2-Z wherein each Z is independently an alkyl or aryl group, wherein -(-L-)m- is a polycarbonate linking group with m units of linking unit L, and wherein m is at least one. Methods of making the sulfonate end-capped polycarbonate and thermoplastic composition, and articles prepared therefrom, are also disclosed.

    摘要翻译: 热塑性组合物包含具有下式的磺酸酯封端的聚碳酸酯:<?in-line-formula description =“In-line Formulas”end =“lead”?> ZS(O)2-O - ( - L)mOS 其中每个Z独立地是烷基或芳基,其中 - ( - L-)m-是聚碳酸酯,其中每个Z独立地是烷基或芳基,其中每个Z独立地是烷基或芳基, 连接基团与m单元的连接单元L,并且其中m是至少一个。 还公开了制备磺酸酯封端的聚碳酸酯和热塑性组合物的方法及其制备的制品。

    METHOD FOR MAKING AN AROMATIC POLYCARBONATE
    45.
    发明申请
    METHOD FOR MAKING AN AROMATIC POLYCARBONATE 有权
    制备芳香族聚碳酸酯的方法

    公开(公告)号:US20030236384A1

    公开(公告)日:2003-12-25

    申请号:US10389009

    申请日:2003-03-17

    IPC分类号: C08G064/00

    摘要: This invention relates to an extrusion method preparing polycarbonates from a solution of an oligomeric polycarbonate. A mixture of bis(methyl salicyl)carbonate (BMSC), BPA and a transesterification catalyst are first equilibrated at moderate temperatures to provide a solution of polycarbonate oligomer in methyl salicylate. The solution is then fed to a devolatilizing extruder, where the polymerization reaction is completed and the methyl salicylate solvent is removed. The solution comprising the oligomeric polycarbonate can also be pre-heated under pressure to a temperature above the boiling point of methyl salicylate and subsequently fed to a devolatilizing extruder equipped for rapid flashing off the solvent. The method provides polycarbonate with greater efficiency than the corresponding process in which unreacted monomers are fed to the extruder. Additionally, the method of the invention does not require the isolation of a precursor polycarbonate comprising ester-substituted phenoxy terminal groups.

    摘要翻译: 本发明涉及从低聚聚碳酸酯溶液制备聚碳酸酯的挤压方法。 首先在中等温度下平衡双(甲基水杨酸)碳酸酯(BMSC),BPA和酯交换催化剂的混合物,以提供聚碳酸酯低聚物在水杨酸甲酯中的溶液。 然后将溶液进料到脱挥发分挤出机中,其中聚合反应完成并除去水杨酸甲酯溶剂。 包含低聚物聚碳酸酯的溶液也可以在压力下预加热到高于水杨酸甲酯沸点的温度,随后进料到脱挥发分的挤出机中,以便迅速地从溶剂中闪蒸。 该方法提供聚碳酸酯比未反应的单体进料到挤出机的相应方法具有更高的效率。 另外,本发明的方法不需要分离包含酯取代的苯氧基末端基团的前体聚碳酸酯。

    Thiodiphenol copolycarbonates and their use as components of
multilayered polymeric reflective bodies
    47.
    发明授权
    Thiodiphenol copolycarbonates and their use as components of multilayered polymeric reflective bodies 失效
    硫代二苯酚共聚碳酸酯及其作为多层聚合物反射体的组分的用途

    公开(公告)号:US5532331A

    公开(公告)日:1996-07-02

    申请号:US351436

    申请日:1994-12-14

    IPC分类号: C08G64/08 C08G64/00

    CPC分类号: C08G64/081 Y10T428/31507

    摘要: This invention provides novel copolycarbonates that exhibit improvements in glass transition temperature, refractive index, and limiting oxygen index compared to prior art thiodiphenol/bisphenol A copolycarbonates. The copolycarbonates of this invention comprise the reaction products of 4,4'-thiodiphenol and compounds such as 9,9-bis (4-hydroxyphenyl) fluorene with phosgene. They are useful as components of multilayered polymeric reflective bodies.

    摘要翻译: PCT No.PCT / US93 / 06074 Sec。 371日期1994年12月15日 102(e)1994年12月15日日期PCT提交1993年6月24日PCT公布。 出版物WO94 / 02533 日本1994年2月3日。本发明提供与现有技术的硫代二酚/双酚A共聚碳酸酯相比,显示玻璃化转变温度,折射率和极限氧指数的改进的新型共聚碳酸酯。 本发明的共聚碳酸酯包括4,4'-硫代二酚和诸如9,9-双(4-羟基苯基)芴和光气的化合物的反应产物。 它们可用作多层聚合物反射体的组分。

    Novel polycarbonate resins, process for production of said resins, and
compositions containing said resins
    48.
    发明授权
    Novel polycarbonate resins, process for production of said resins, and compositions containing said resins 失效
    新型聚碳酸酯树脂,所述树脂的制造方法和含有所述树脂的组合物

    公开(公告)号:US5037937A

    公开(公告)日:1991-08-06

    申请号:US294906

    申请日:1989-01-06

    IPC分类号: C08G64/08 C08G64/10 C08K7/14

    CPC分类号: C08G64/10 C08G64/081 C08K7/14

    摘要: Novel polycarbonate resins, a process for production of said polycarbonate resins, and compositions containing said polycarbonate resins and glass fibers as major components are disclosed. The polycarbonate resins have: (1) a repeating unit (I) represented by the general formula (A): ##STR1## and a repeating unit (II) represented by the general formula ##STR2## (all the symbols are as defined in the appended claims); (2) a pentahalogenophenoxy group as the end group thereof; and (3) a viscosity average molecular weight of at least 5,000. The polycarbonate resins are excellent in all of flame retardance, fluidity, impact resistance and transparency. Thus the polycarbonate resins and compositions containing them are useful for production of, e.g., moldings for which all the above characteristics are required.

    摘要翻译: 公开了新型聚碳酸酯树脂,所述聚碳酸酯树脂的制造方法和含有所述聚碳酸酯树脂和玻璃纤维作为主要成分的组合物。 聚碳酸酯树脂具有:(1)由通式(A)表示的重复单元(I):&lt; IMAGE&gt;和由通式&lt; IMAGE&gt;表示的重复单元(II)(所有符号如 所附权利要求); (2)五卤代苯氧基作为其末端基团; 和(3)粘均分子量至少为5,000。 聚碳酸酯树脂具有优异的阻燃性,流动性,耐冲击性和透明性。 因此,含有它们的聚碳酸酯树脂和组合物可用于生产例如需要所有上述特征的模制品。

    Flame retardant non-dripping polycarbonate compositions
    49.
    发明授权
    Flame retardant non-dripping polycarbonate compositions 失效
    阻燃非滴滴聚碳酸酯组合物

    公开(公告)号:US4490504A

    公开(公告)日:1984-12-25

    申请号:US522983

    申请日:1983-08-15

    申请人: Victor Mark

    发明人: Victor Mark

    CPC分类号: C08G64/081 C08K7/14

    摘要: Flame retardant and drip-retardant polycarbonate compositions exhibiting good thick section impact comprised of, in physical admixture:(i) at least one halogen-free and sulfur-containing polycarbonate resin derived from (a) at least one halogen-free, sulfur-free and non-polycyclic dihydric phenol, (b) at least one halogen-free thiodiphenol, and (c) a carbonate precursor; and(ii) fibrous glass.These compositions contain an amount of said fibrous glass and an amount of said thiodiphenol effective to render said compositions flame retardant and drip retardant.

    摘要翻译: 表现出良好的厚截面冲击的阻燃和滴加聚碳酸酯组合物在物理混合物中包括:(i)至少一种不含卤素和含硫的聚碳酸酯树脂,其衍生自(a)至少一种无卤素,无硫 和非多环二元酚,(b)至少一种无卤素的硫代二酚,和(c)碳酸酯前体; 和(ii)纤维状玻璃。 这些组合物含有一定量的所述纤维状玻璃和一定量的所述硫代二酚有效地使所述组合物阻燃和滴加阻滞。