Polycarbonate manufacturing method and polycarbonate
    31.
    发明授权
    Polycarbonate manufacturing method and polycarbonate 有权
    聚碳酸酯制造方法和聚碳酸酯

    公开(公告)号:US09447235B2

    公开(公告)日:2016-09-20

    申请号:US14883759

    申请日:2015-10-15

    CPC分类号: C08G64/28 C08G64/307

    摘要: The present invention relates to a method of producing polycarbonate containing following step (a) and step (b), (a) a step of reacting a specific fluorine-containing carbonate (Compound (1), etc.) and an aromatic dihydroxy compound in the presence of a condensation catalyst, to obtain a prepolymer, and (b) a step of heating the prepolymer at a temperature which is lower than a melting temperature of the prepolymer and performing solid phase polymerization on the prepolymer while a fluorine-containing alcohol that is produced as a by-product is discharged out of a system, to obtain a polycarbonate.

    Method for continuous production of polycarbonate-polyorganosiloxane copolymer
    33.
    发明授权
    Method for continuous production of polycarbonate-polyorganosiloxane copolymer 有权
    连续生产聚碳酸酯 - 聚有机硅氧烷共聚物的方法

    公开(公告)号:US09139701B2

    公开(公告)日:2015-09-22

    申请号:US14362335

    申请日:2012-11-16

    摘要: The present invention provides a method for producing a polycarbonate-polyorganosiloxane copolymer economically and stably, in particular, the present invention is concerned with a method for continuous production of a polycarbonate-polyorganosiloxane copolymer including (A) a step of withdrawing a polymerization reaction solution obtained by polymerizing a dihydric phenol compound, a carbonate precursor, and a polyorganosiloxane in the presence of an alkaline compound aqueous solution and a water-insoluble organic solvent continuously or intermittently from a reactor; (B) a step of separating the polymerization reaction solution withdrawn in the step (A) into an aqueous phase and a water-insoluble organic solvent phase; and (C) a step of after washing the water-insoluble organic solvent phase separated in the step (B) with an acidic aqueous solution, separating the resultant into an aqueous phase and a water-insoluble organic solvent phase, wherein the content of the polycarbonate-polyorganosiloxane copolymer in the aqueous phase separated in the step (C) is controlled to not more than 2% by mass, and a part or the whole of an extract obtained by extracting the aqueous phase separated in the step (C) with a water-insoluble organic solvent is reused for the step (A).

    摘要翻译: 本发明提供了一种经济,稳定地制备聚碳酸酯 - 聚有机硅氧烷共聚物的方法,特别是本发明涉及连续制备聚碳酸酯 - 聚有机硅氧烷共聚物的方法,其包括(A)取出获得的聚合反应溶液的步骤 通过在反应器中连续或间歇地在碱性化合物水溶液和水不溶性有机溶剂的存在下聚合二元酚化合物,碳酸酯前体和聚有机硅氧烷; (B)将步骤(A)中取出的聚合反应溶液分离成水相和水不溶性有机溶剂相的步骤; 和(C)用酸性水溶液洗涤步骤(B)中分离出的水不溶性有机溶剂相的步骤,将所得物分离成水相和水不溶性有机溶剂相,其中, 将步骤(C)中分离的水相中的聚碳酸酯 - 聚有机硅氧烷共聚物控制在2质量%以下,通过将步骤(C)中分离的水相萃取得到的部分或全部提取物 水不溶性有机溶剂用于步骤(A)。

    Continuous production method for polycarbonate-polyorganosiloxane copolymer
    34.
    发明授权
    Continuous production method for polycarbonate-polyorganosiloxane copolymer 有权
    聚碳酸酯 - 聚有机硅氧烷共聚物的连续制备方法

    公开(公告)号:US09045586B2

    公开(公告)日:2015-06-02

    申请号:US14362375

    申请日:2012-11-16

    摘要: The present invention provides a method for producing a polycarbonate-polyorganosiloxane copolymer economically and stably, in particular, the present invention is concerned with a method for continuous production of a polycarbonate-polyorganosiloxane copolymer including (A) a step of withdrawing a polymerization reaction solution obtained by polymerizing a dihydric phenol compound, a carbonate precursor, and a polyorganosiloxane in the presence of an alkaline compound aqueous solution and a water-insoluble organic solvent continuously or intermittently from a reactor; (B) a step of separating the polymerization reaction solution withdrawn in the step (A) into an aqueous phase and a water-insoluble organic solvent phase; and (C) a step of after washing the water-insoluble organic solvent phase separated in the step (B) with an acidic aqueous solution, separating the resultant into an aqueous phase and a water-insoluble organic solvent phase, wherein the aqueous phase separated in the step (C) is extracted with a water-insoluble organic solvent, the content of the polycarbonate-polyorganosiloxane copolymer in the obtained extract is controlled to not more than 2% by mass, and a part or the whole of the extract is reused for the step (A).

    摘要翻译: 本发明提供了一种经济,稳定地制备聚碳酸酯 - 聚有机硅氧烷共聚物的方法,特别是本发明涉及连续制备聚碳酸酯 - 聚有机硅氧烷共聚物的方法,其包括(A)取出获得的聚合反应溶液的步骤 通过在反应器中连续或间歇地在碱性化合物水溶液和水不溶性有机溶剂的存在下聚合二元酚化合物,碳酸酯前体和聚有机硅氧烷; (B)将步骤(A)中取出的聚合反应溶液分离成水相和水不溶性有机溶剂相的步骤; 和(C)用酸性水溶液洗涤步骤(B)中分离出的水不溶性有机溶剂相的步骤,将所得物分离成水相和水不溶性有机溶剂相,其中水相分离 在步骤(C)中用水不溶性有机溶剂萃取,将得到的提取物中的聚碳酸酯 - 聚有机硅氧烷共聚物的含量控制在2质量%以下,将部分或全部提取物再利用 步骤(A)。

    Production of bisphenol a with reduced isomer formation
    36.
    发明申请
    Production of bisphenol a with reduced isomer formation 审中-公开
    双酚A的生产减少异构体形成

    公开(公告)号:US20050176918A1

    公开(公告)日:2005-08-11

    申请号:US11043769

    申请日:2005-01-26

    摘要: A process for the production of bisphenol A is disclosed. The process entails a) mixing phenol and acetone to form a mixture, and b) bringing the mixture to a temperature of 48 to 54° C. to form a warm mixture, and c) commencing a reaction between phenol and acetone upon contacting the warm mixture with an acid ion exchange catalyst to form a product mixture that contains bisphenol A. The bisphenol A may be extracted from the product mixture by crystallization and filtration.

    摘要翻译: 公开了生产双酚A的方法。 该方法需要a)将苯酚和丙酮混合以形成混合物,和b)使混合物达到48至54℃的温度以形成温热的混合物,和c)在接触温热时开始苯酚和丙酮之间的反应 与酸性离子交换催化剂的混合物以形成含有双酚A的产物混合物。双酚A可以通过结晶和过滤从产物混合物中提取。

    Branched chain stopped polycarbonate and process for production
    37.
    发明授权
    Branched chain stopped polycarbonate and process for production 失效
    分支链停止聚碳酸酯和生产工艺

    公开(公告)号:US5112936A

    公开(公告)日:1992-05-12

    申请号:US465212

    申请日:1990-03-07

    申请人: Masaya Okamoto

    发明人: Masaya Okamoto

    CPC分类号: C08G64/14

    摘要: Branched polycarbonates are disclosed, characterized by having a branched nucleus structure derived from at least one compound of (1) .alpha., .alpha.', .alpha."tris(4-hydroxyphenyl)-1,3-5-triisopropylbenzene, (2) 1-[.alpha.-methyl-.alpha.-(4'-hydroxyphenyl)ethyl]-4-[.alpha.', .alpha.'-bis(4"-hydroxyphenyl)ethyl]benzene, (3) phloroglucinol and (4) trimellitic acid, a viscosity average molecular weight of 15,000 to 40,000, and an acetone-soluble matter of not more than 3.5% by weight. A process for efficiently producing these branched polycarbonates is disclosed.These branched polycarbonates are excellent in impact resistance and are suitable particularly for blow molding.

    摘要翻译: PCT No.PCT / JP89 / 00916 Sec。 371 1990年3月7日第 102(e)1990年3月7日PCT PCT 1989年9月6日PCT公布。 出版物WO90 / 02769 公开了分散的聚碳酸酯,其特征在于具有衍生自至少一种(1)α,α',α“三(4-羟基苯基)-1,3,5-三 三异丙基苯,(2)1- [α-甲基-α-(4'-羟基苯基)乙基] -4- [α',α'-双(4“ - 羟基苯基)乙基]苯,(3)间苯三酚和( 4)偏苯三酸,粘均分子量为15,000至40,000,丙酮可溶物不超过3.5重量%。 公开了一种有效生产这些支化聚碳酸酯的方法。 这些支化聚碳酸酯的耐冲击性优异,特别适用于吹塑。

    Process of crosslinking polycyclic oligomer from tetraphenal
    38.
    发明授权
    Process of crosslinking polycyclic oligomer from tetraphenal 失效
    从四苯酚交联多环寡聚物的方法

    公开(公告)号:US4972039A

    公开(公告)日:1990-11-20

    申请号:US405811

    申请日:1989-09-11

    摘要: Polycyclic polycarbonate (or thiol analog) oligomers are prepared from a mixture of at least one bishaloformate with at least one tetraphenol, or thio analogs thereof. Such mixture may also contain at least one dihydroxy or dimercapto compound. The oligomers are formed by the reaction of such mixtures with alkali metal hydroxides and various amines. The polycyclic oligomer mixtures may be converted to crosslinked polycarbonates or their thiol analogs.

    摘要翻译: 多环状聚碳酸酯(或硫醇类似物)低聚物由至少一种双卤代甲酸酯与至少一种四酚或其硫代类似物的混合物制备。 这种混合物还可含有至少一种二羟基或二巯基化合物。 低聚物通过这些混合物与碱金属氢氧化物和各种胺的反应而形成。 多环低聚物混合物可以转化成交联的聚碳酸酯或它们的硫醇类似物。

    Process for producing a halogen-containing polycarbonate resin
    40.
    发明授权
    Process for producing a halogen-containing polycarbonate resin 失效
    含卤聚碳酸酯树脂的制造方法

    公开(公告)号:US4323663A

    公开(公告)日:1982-04-06

    申请号:US203649

    申请日:1980-11-03

    摘要: A process for producing a halogen-containing polycarbonate resin characterized by washing, with an aqueous washing liquid, an organic solvent solution of a mixture of a halogen-containing polycarbonate resin having a halogen content of not less than 4 wt % (hereinafter referred to simply as polycarbonate H) and a polycarbonate resin having a halogen content of not larger than 4 wt % (hereinafter referred to simply as polycarbonate P) the weight ratio of polycarbonate P to polycarbonate H being 0.05-4, and collecting a mixed polycarbonate resin having a halogen content of not less than 4 wt % from said solution.

    摘要翻译: 一种含卤聚碳酸酯树脂的制造方法,其特征在于,用水性洗涤液洗涤卤素含量为4重量%以上的含卤聚碳酸酯树脂的混合物的有机溶剂溶液(以下简称为 作为聚碳酸酯H)和卤素含量不大于4重量%的聚碳酸酯树脂(以下简称为聚碳酸酯P),聚碳酸酯P与聚碳酸酯H的重量比为0.05-4,并收集具有 卤素含量不少于4wt%。