Polycarbonate-polyorganosiloxane copolymer and method for continuously producing same
    34.
    发明授权
    Polycarbonate-polyorganosiloxane copolymer and method for continuously producing same 有权
    聚碳酸酯 - 聚有机硅氧烷共聚物及其连续制造方法

    公开(公告)号:US09371419B2

    公开(公告)日:2016-06-21

    申请号:US14411275

    申请日:2013-06-26

    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。

    Batch process for the production of polycarbonate by interfacial
polymerization
    35.
    发明授权
    Batch process for the production of polycarbonate by interfacial polymerization 有权
    通过界面聚合生产聚碳酸酯的分批方法

    公开(公告)号:US6103855A

    公开(公告)日:2000-08-15

    申请号:US281497

    申请日:1999-03-30

    CPC分类号: C08G64/24 C08G64/14

    摘要: A method of preparing a polycarbonate comprising the steps of:a) charging at least one dihydroxy compound, an inert solvent, water, caustic, carbonyl halide, and catalyst to a vessel, and maintaining the pH of the reaction mixture between about 4 and about 12 during charging; andb) within an interval of between 0 and about 90% of the total carbonyl halide addition to the vessel, activating a reaction system that produces monofunctional aromatic chloroformates (MAC) and introducing the MAC to the vessel within the interval of 0 to about 90% of the total carbonyl halide addition to the vessel; where the MAC reaction system is coupled with the vessel, and where means are provided for delivery of the MAC from the reaction system to the vessel.

    摘要翻译: 一种制备聚碳酸酯的方法,包括以下步骤:a)将至少一种二羟基化合物,惰性溶剂,水,苛性碱,羰基卤化物和催化剂装入容器中,并将反应混合物的pH保持在约4和约 充电时12 和b)在添加到容器中的总羰基卤的0至约90%的间隔内,激活产生单官能芳族氯甲酸酯(MAC)并在0至约90的间隔内将MAC引入容器的反应体系 添加到容器中的总羰基卤的百分比; 其中MAC反应系统与容器结合,并且其中提供用于将MAC从反应系统输送到容器的装置。

    Process for efficient phosgene usage in the preparation of polycarbonates
    37.
    发明授权
    Process for efficient phosgene usage in the preparation of polycarbonates 失效
    用于制备聚碳酸酯的有效光气的方法

    公开(公告)号:US5416185A

    公开(公告)日:1995-05-16

    申请号:US123627

    申请日:1993-09-17

    IPC分类号: C08G64/22 C08G64/24 C08G64/00

    CPC分类号: C08G64/24

    摘要: A method for producing polycarbonates by the interfacial reaction of phosgene bisphenol in a two phase reaction medium of an aqueous hydroxide and an organic solvent is disclosed. In the reaction, the amount of water in the reaction medium is controlled such that high ionic strength conditions resulting from high salt concentrations are reached at the end of phosgenation and the pH of the medium is controlled to a range between 8 and 10 whereby excess phosgene usage is less than about 15% of theoretical conditions.

    摘要翻译: 公开了通过光气双酚在水相氢氧化物和有机溶剂的两相反应介质中的界面反应制备聚碳酸酯的方法。 在反应中,控制反应介质中的水量,使得在光气化结束时达到由高盐浓度产生的高离子强度条件,并将培养基的pH控制在8至10之间,由此过量的光气 使用量低于理论条件的约15%。

    Interpolymers of aromatic polyesters and rubbers
    38.
    发明授权
    Interpolymers of aromatic polyesters and rubbers 失效
    芳族聚酯和橡胶的共聚物

    公开(公告)号:US5250621A

    公开(公告)日:1993-10-05

    申请号:US716219

    申请日:1991-06-17

    摘要: Interpolymers of aromatic polyesters and cross-linked (or partially cross-linked) rubbers and a process for their production in which a mixture of a cross-linked rubber in latex form containing reactive groups and an aqueous solution of an alkali metal or alkaline earth metal diphenolate is reacted with a solution of a dicarboxylic acid halide and/or a carbonyl halide in a water-immiscible solvent so that an aromatic polyester forms at the water/organic solvent phase boundary, which polyester goes over into the organic phase and the rubber at the same time also goes into the organic phase. The interpolymer of rubber and organic polyester thus formed is suitable for the production of moulded articles of all kinds by the methods of thermoplastic shaping such as extrusion and injection moulding.

    摘要翻译: 芳族聚酯和交联(或部分交联)橡胶的共聚物及其制备方法,其中含有反应性基团的胶乳形式的交联橡胶与碱金属或碱土金属的水溶液的混合物 二苯酚酸酯与二羧酸卤化物和/或羰基卤化物在水不混溶溶剂中的溶液反应,使得在水/有机溶剂相界面处形成芳族聚酯,该聚酯在有机相上形成,橡胶在 同时也进入有机阶段。 如此形成的橡胶和有机聚酯的互聚物适用于通过热塑性成形例如挤出和注射成型的方法生产各种模塑制品。

    Method for making oligomeric carbonate bischloroformates with low
phosgene usage
    39.
    发明授权
    Method for making oligomeric carbonate bischloroformates with low phosgene usage 失效
    用于制造具有低PHOSGENE用途的低碳碳酸盐双歧杆菌的方法

    公开(公告)号:US5162564A

    公开(公告)日:1992-11-10

    申请号:US331787

    申请日:1989-04-03

    CPC分类号: C07C69/96 C07C68/02

    摘要: Oligomeric carbonate bischloroformates are prepared with low phosgene usage by phosgenating a dihydroxyaromatic compound in an interfacial reaction in the presence of small amounts of trialkylamine, preferably, triethylamine. In this invention, the molar ratio of phosgene to dihydroxyaromatic compound, hydrolysis of phosgene, formation of such byproducts as monochloroformates and hydroxyl-terminated polycarbonate oligomers, and batch time are minimized and consumption of the dihydroxylaromatic compound is substantially complete.

    摘要翻译: 在少量三烷基胺,优选三乙胺的存在下,在界面反应中光化二羟基芳族化合物,通过低光气使用制备低聚碳酸酯双氯甲酸酯。 在本发明中,光气与二羟基芳族化合物的摩尔比,光气的水解,形成一氯甲酸酯和羟基封端的聚碳酸酯低聚物的副产物和批次时间最小化,二羟基芳族化合物的消耗基本上完成。