知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

142 条记录 (耗时 0.024 秒)

    Thermal enhancement of the purification process for interfacial polycarbonate and copolymer polycarbonates
    3.
    发明授权
    Thermal enhancement of the purification process for interfacial polycarbonate and copolymer polycarbonates 有权

    公开(公告)号：US09617380B2

    公开(公告)日：2017-04-11

    申请号：US14907369

    申请日：2014-07-25

    申请人： SABIC Global Technologies B.V.

    发明人： William E. Hollar, Jr. ,  Zeljko Kuzeljevic ,  Mohan Khadilkar ,  Donald Paciorkowski

    IPC分类号： C08G64/00 ,  C08G64/40 ,  C08G63/06

    CPC分类号： C08G64/403 ,  C08G64/406

    摘要： In an embodiment, a process of purifying a polycarbonate comprises: polymerizing a dihydroxy compound and a carbonate source via an interfacial reaction in the presence of a catalyst to form a product mixture comprising an aqueous phase and an organic phase, wherein the organic phase comprises the polycarbonate, the catalyst, ions, and a solvent having a boiling point Tb; heating the product mixture to greater than or equal to Tb; separating the aqueous phase and the organic phase at a temperature greater than or equal to Tb to form a separated organic phase and a separated aqueous phase; extracting the catalyst from the separated organic phase; and extracting the ions from the separated organic phase; wherein if a centrifuge is used in the extracting of the catalyst, the extracting of the ions, or both, the process further comprises cooling a stream entering the centrifuge to less than Tb.

    Flame-retarding carbon dioxide/epoxide copolymer and method for preparing the same
    5.
    发明授权
    Flame-retarding carbon dioxide/epoxide copolymer and method for preparing the same 有权
    阻燃二氧化碳/环氧化物共聚物及其制备方法

    公开(公告)号：US09371420B2

    公开(公告)日：2016-06-21

    申请号：US14480879

    申请日：2014-09-09

    申请人： SK Innovation Co., Ltd.

    发明人： Jisu Jeong ,  SungJae Na ,  Sujith Sudevan ,  MyungAhn Ok ,  YongGyu Han ,  KwangJin Chung ,  BunYeoul Lee ,  Anish Cyriac ,  SangHwan Lee

    IPC分类号： C08G64/34 ,  C08G64/02 ,  C08G64/40 ,  C08G65/26

    CPC分类号： C08G64/34 ,  C08G64/0208 ,  C08G64/0258 ,  C08G64/403 ,  C08G64/406 ,  C08G65/2603

    摘要： There is provided a method for preparing a low-molecular weight poly(alkylene carbonate) of which the molecular weight and chain shape are precisely controlled, by introducing a phosphorous compound having a hydroxyl group as a chain transfer agent in order to regulate the molecular weight, in alternating copolymerizing an epoxide compound and carbon dioxide by using trivalent metal complex prepared from a Salen type ligand containing a quaternary ammonium salt, and a polymer prepared by the method.Since poly(alkylene carbonate) prepared according to the present invention includes a phosphate or phosphonate group in the polymer chain, it has flame-retarding property.

    摘要翻译： 提供了通过引入具有羟基的磷化合物作为链转移剂来制备其分子量和链形状被精确控制的低分子量聚（碳酸亚烷基酯）的方法，以调节分子量 通过使用由含有季铵盐的Salen型配体制备的三价金属络合物和通过该方法制备的聚合物来交替共聚环氧化合物和二氧化碳。 由于根据本发明制备的聚（碳酸亚烷基酯）在聚合物链中包含磷酸酯或膦酸酯基，因此具有阻燃性。

    Polycarbonate preparation method
    7.
    发明授权
    Polycarbonate preparation method 有权
    聚碳酸酯制备方法

    公开(公告)号：US09062154B2

    公开(公告)日：2015-06-23

    申请号：US14358822

    申请日：2012-11-05

    申请人： WANHUA CHEMICAL GROUP CO., LTD. ,  WANHUA CHEMICAL (NINGBO) CO., LTD.

    发明人： Lei Zhang ,  Hongke Zhang ,  Weiqi Hua ,  Linrong Song ,  Yifeng Hu ,  Xiwang Zang ,  Kai Feng

    IPC分类号： C08G64/00 ,  C08G64/24 ,  C08G64/40 ,  C08G63/02

    CPC分类号： C08G64/24 ,  C08G64/406

    摘要： Provided is a polycarbonate preparation method, comprising the following steps: a) mixing a phenoxide water aqueous solution of a bisphenol and/or a polyphenol with a phosgene and an inert organic solvent, reacting, and generating a polycarbonate oligomer; b) highly emulsifying the oligomer by reinforced micromixing to form a stable emulsion; and c) introducing the emulsion into a polycondensation reactor for a chain extending reaction, separating and finally obtaining the polycarbonate. Through the reinforced micromixing, the present method can prepare the high-molecular-weight polycarbonate without any catalysts, thus simplifying the post-treatment process of the product and improving product quality.

    摘要翻译： 提供一种聚碳酸酯制备方法，其包括以下步骤：a）将双酚和/或多酚的酚盐水水溶液与光气和惰性有机溶剂混合，反应并生成聚碳酸酯低聚物; b）通过增强的微混合使低聚物高度乳化以形成稳定的乳液; 和c）将乳液引入缩聚反应器中进行扩链反应，分离并最终获得聚碳酸酯。 通过加强微混合，本方法可以制备高分子量聚碳酸酯，无需任何催化剂，从而简化了产品后处理工艺，提高了产品质量。

    POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER AND METHOD FOR CONTINUOUSLY PRODUCING SAME
    8.
    发明申请
    POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER AND METHOD FOR CONTINUOUSLY PRODUCING SAME 有权
    聚碳酸酯 - 聚硅氧烷共聚物及其连续生产方法

    公开(公告)号：US20150166733A1

    公开(公告)日：2015-06-18

    申请号：US14411275

    申请日：2013-06-26

    申请人： IDEMITSU KOSAN CO., LTD.

    发明人： Yukiko Nagao ,  Yasuhiro Ishikawa ,  Hiroaki Motegi

    IPC分类号： C08G77/38

    CPC分类号： C08G77/448 ,  C08G64/186 ,  C08G64/22 ,  C08G64/24 ,  C08G64/406 ,  C08G77/16 ,  C08G77/34 ,  C08G77/38 ,  C08K5/07 ,  C08K5/13 ,  C08L83/06 ,  C08L83/10

    摘要： Provided are a polycarbonate-polyorganosiloxane copolymer having a carbon tetrachloride concentration of less than 4 ppm by mass, and the following production method for producing the polycarbonate-polyorganosiloxane copolymer. More specifically, provided is a method of continuously producing a polycarbonate-polyorganosiloxane copolymer, the method comprising the steps of: (A) continuously or intermittently taking a polymerization reaction liquid, which is obtained by polymerizing a dihydric phenol compound, a carbonate precursor, and a specific polyorganosiloxane in the presence of an alkaline compound aqueous solution and a water-insoluble organic solvent, out of a reactor; (B) separating the polymerization reaction liquid taken out in the step (A) into an aqueous phase and a water-insoluble organic solvent phase; (C) washing the water-insoluble organic solvent phase separated in the step (B), followed by separation thereof into an aqueous phase and a water-insoluble organic solvent phase; (D) concentrating the water-insoluble organic solvent phase separated in the step (C); and (E) recovering part or all of the water-insoluble organic solvent removed by evaporation in the step (D), followed by distillation purification thereof in a distillation column, the water-insoluble organic solvent obtained in the step (E) being reused as at least part of the water-insoluble organic solvent in the step (A) or as an extraction solvent for the aqueous phase separated in the step (B), or as both thereof, in the step (E), the distillation purification being performed while a concentration of the polycarbonate-polyorganosiloxane copolymer in a column bottom liquid of the distillation column is controlled to 6% by mass or less.

    摘要翻译： 本发明提供四氯化碳浓度小于4质量ppm的聚碳酸酯 - 聚有机硅氧烷共聚物，以及以下制造聚碳酸酯 - 聚有机硅氧烷共聚物的制造方法。 更具体地说，提供连续制造聚碳酸酯 - 聚有机硅氧烷共聚物的方法，该方法包括以下步骤：（A）连续地或间歇地取出聚合反应液，该聚合反应液是通过使二元酚化合物，碳酸酯前体和 在碱性化合物水溶液和水不溶性有机溶剂的存在下，从反应器中除去特定的聚有机硅氧烷; （B）将步骤（A）中取出的聚合反应液分离成水相和水不溶性有机溶剂相; （C）洗涤步骤（B）中分离的水不溶性有机溶剂相，然后分离成水相和水不溶性有机溶剂相; （D）浓缩步骤（C）中分离的水不溶性有机溶剂相; 和（E）回收在步骤（D）中通过蒸发除去的部分或全部水不溶性有机溶剂，然后在蒸馏塔中蒸馏纯化，将步骤（E）中得到的水不溶性有机溶剂重新使用 作为步骤（A）中的至少一部分水不溶性有机溶剂或作为在步骤（B）中分离的水相的提取溶剂，或两者在步骤（E）中，蒸馏纯化为 在将蒸馏塔的塔底液中的聚碳酸酯 - 聚有机硅氧烷共聚物的浓度控制在6质量％以下的同时进行。