Process for the preparation of carbonic acid aryl esters of
polyester-diols lengthened via carbonate groups
    164.
    发明授权
    Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups 失效
    通过碳酸酯基团延长的聚酯二醇的碳酸芳酯的制备方法

    公开(公告)号:US4217297A

    公开(公告)日:1980-08-12

    申请号:US886212

    申请日:1978-03-13

    CPC分类号: C08G63/64

    摘要: The present invention relates to a process for the preparation of bis-carbonic acid monoaryl esters of polyester-diols, lengthened via --OCOO-- groups, characterized in that polyester-diols with molecular weights Mn (number-average) of over 250, preferably over 600, are heated with carbonic acid bis-aryl esters at temperatures between about 100.degree. C. and 200.degree. C., preferably between about 110.degree. C. and 180.degree. C., in vacuo below about 35 mm Hg, preferably between about 25 and 1 mm Hg, in the presence of catalysts, less than one mol of carbonic acid bis-aryl ester being employed per mol of OH group of the polyester-diol and the hydroxyaryl compounds formed being distilled off.The invention further relates to the bis-carbonic acid aryl esters of polyester-diols lengthened via --OCOO-- groups.

    摘要翻译: 本发明涉及通过-OCOO-基团来制备聚酯二醇的双碳酸单芳基酯的方法,其特征在于分子量Mn(数均分子)超过250的聚酯二醇优选超过 600,在约100℃至200℃之间,优选约110℃至180℃之间的温度下,用碳酸双芳基酯加热,真空度低于约35mmHg,优选约25mm 和1mm Hg,在催化剂的存在下,每摩尔聚酯二醇的OH基和所形成的羟基芳基化合物使用少于1摩尔的碳酸双芳基酯。 本发明还涉及通过-OCOO-基团延长的聚酯二醇的双碳酸芳基酯。

    Process for the preparation of branched polycarbonates
    165.
    发明授权
    Process for the preparation of branched polycarbonates 失效
    支链聚碳酸酯的制备方法

    公开(公告)号:US4174437A

    公开(公告)日:1979-11-13

    申请号:US894229

    申请日:1978-04-07

    CPC分类号: C08G64/06 C08K5/42

    摘要: The present invention relates to a process for the preparation of branched thermoplastic polycarbonates, characterized in that diphenols are completely reacted with about 0.05 to about 2.0 mol %, relative to mols of diphenols, of cyanuric chloride in a primary reaction, while controlling the pH and temperature and in the presence of a co-solvent, and thereafter the products are subjected to polycondensation, in accordance with known methods of the phase boundary process, to give high-molecular weight, branched polycarbonates. The invention further relates to the branched polycarbonates prepared by this process.

    摘要翻译: 本发明涉及一种制备支链热塑性聚碳酸酯的方法,其特征在于二酚在一次反应中相对于二酚的摩尔数为约0.05至约2.0摩尔%,同时控制pH和 温度和在共溶剂存在下,然后根据已知的相边界方法对产物进行缩聚,得到高分子量的支化聚碳酸酯。 本发明还涉及通过该方法制备的支化聚碳酸酯。

    High molecular weight polycarbonates of
.alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexakisaryl-1,3-and/o
r -1,4-dimethyl benzenes
    169.
    发明授权
    High molecular weight polycarbonates of .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexakisaryl-1,3-and/o r -1,4-dimethyl benzenes 失效
    {60,{60,{60,{60 {40,{60 {40,{60 {40-己基芳基-1,3-和/或-1,4-二甲基苯

    公开(公告)号:US4009148A

    公开(公告)日:1977-02-22

    申请号:US579532

    申请日:1975-05-21

    摘要: The present invention is related to high molecular weight polycarbonates based on aromatic dihydroxy compounds which contain 5 to 100 mol % preferably 20 to 100 mol % of structural units derived from .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-hexakisaryl-1,3-and/or -1,4-dimethyl benzene dihydroxy compounds. In a preferred embodiment, the polycarbonate is a copolymer of the hexakisaryl dihydroxy compounds and bisphenols known to be useful in producing polycarbonates. The residues of the hexakisaryl compound may be 5 to 90 mol %, preferably 20 to 70 mol % of the structural units. An especially preferred copolymer is that between the hexakisaryl compounds and .alpha.,.alpha.'-(hydroxyphenyl)-diisopropyl benzenes. These polycarbonates show improved heat stability and higher second order transition temperature points than conventional polycarbonates and are useful in applications involving high service temperatures such as electrical insulating film.

    摘要翻译: 本发明涉及基于芳族二羟基化合物的高分子量聚碳酸酯,其含有5至100摩尔%,优选20至100摩尔%的衍生自α,α,α,α',α',α'-六氟甲磺酸的结构单元, 1,3-和/或-1,4-二甲基苯二羟基化合物。 在优选的实施方案中,聚碳酸酯是已知可用于制备聚碳酸酯的六芳基二羟基化合物和双酚的共聚物。 六芳基化合物的残基可以为结构单元的5〜90摩尔%,优选为20〜70摩尔%。 特别优选的共聚物是六芳基化合物和α,α'-(羟基苯基) - 二异丙基苯之间的共聚物。 这些聚碳酸酯显示比常规聚碳酸酯更好的热稳定性和更高的二阶转变温度点,并且可用于涉及高使用温度的应用,例如电绝缘膜。

    Branched polyphosphonates
    170.
    发明授权
    Branched polyphosphonates 有权
    支链聚膦酸盐

    公开(公告)号:US07816486B2

    公开(公告)日:2010-10-19

    申请号:US10546668

    申请日:2004-02-24

    IPC分类号: C08G79/02

    摘要: Disclosed are branched polyphosphonates produced using a polycondensation process, that result in polyphosphonates having a Tg of at least 100° C., and which can be further processed to have improved hydrolytic stability compared to other polyphosphonates. The method and polyphosphonate compositions may be made from readily available starting materials providing lower cost fire retardant materials. Also disclosed are polymer compositions that comprise these branched polyphosphonates and at least one other polymer, wherein the resulting polymer compositions exhibit flame retardant properties.

    摘要翻译: 公开了使用缩聚方法制备的支化多聚膦酸酯,其导致Tg为至少100℃的多聚膦酸酯,并且与其它聚膦酸酯相比可进一步加工以具有改善的水解稳定性。 该方法和聚膦酸盐组合物可以由提供较低成本阻燃材料的容易获得的起始材料制成。 还公开了包含这些支化多聚膦酸酯和至少一种其它聚合物的聚合物组合物,其中所得聚合物组合物显示出阻燃性能。