PROCESS FOR PRODUCING FINE PARTICLES
    41.
    发明申请
    PROCESS FOR PRODUCING FINE PARTICLES 审中-公开
    生产细颗粒的方法

    公开(公告)号:US20100234561A1

    公开(公告)日:2010-09-16

    申请号:US12377972

    申请日:2007-08-08

    IPC分类号: C08J3/14

    CPC分类号: C08J3/14

    摘要: A process for producing fine particles is provided including the steps of (1) preparing a solution having a viscosity of 20 mPa·s or less at 25° C. by using a polymer and a first solvent, (2) mixing the solution with a second solvent to prepare an emulsion and (3) removing the first solvent from the emulsion to obtain fine particles containing the polymer.

    摘要翻译: 提供一种微粒生产方法,包括以下步骤:(1)通过使用聚合物和第一溶剂在25℃下制备粘度为20mPa·s或更低的溶液,(2)将溶液与 第二溶剂以制备乳液和(3)从乳液中除去第一溶剂以获得含有聚合物的细颗粒。

    Method for precipitation of polyphenylene ether
    43.
    发明申请
    Method for precipitation of polyphenylene ether 有权
    聚苯醚沉淀方法

    公开(公告)号:US20050131108A1

    公开(公告)日:2005-06-16

    申请号:US10503072

    申请日:2003-01-30

    IPC分类号: C08G65/46 C08J3/14 C08K3/00

    摘要: An object of the present invention is to provide a method for precipitating polyphenylene ether which decreases the number of fine particles thereof and reduces periodic fluctuations in particle size, thereby being able to stably produce homogeneous polyphenylene ether particles. The invention relates to a method for precipitating polyphenylene ether by mixing a polyphenylene ether solution comprising polyphenylene ether and a good solvent therefor with a poor solvent for polyphenylene ether to precipitate polyphenylene ether particles, the method comprising: using a precipitation tank equipped with (a) a draft tube, (b) an at least one-stage stirring blade disposed in the draft tube and selected from an inclined paddle blade, a screw blade and a ribbon blade, (c) one or more baffles disposed on the outside of the draft tube, (d) a solution supply port, (e) a poor solvent supply port and (f) an exhaust port; adding, to a mixed solution comprising the good solvent, the poor solvent and polyphenylene ether particles and circularly flowing by rotation of the stirring blade (b), the polyphenylene ether solution from the solution supply port (d) and concurrently a poor solvent from the poor solvent supply port (e), thereby precipitating polyphenylene ether particles; and discharging and recovering the precipitated polyphenylene ether particles together with the mixed solution from the exhaust port (f).

    摘要翻译: 本发明的目的是提供一种沉淀聚苯醚的方法,其减少其微粒数量并减少粒径的周期性波动,从而能够稳定地制备均匀的聚苯醚颗粒。 本发明涉及一种聚苯醚沉淀方法,该方法包括:使用配备有(a)的沉淀槽,将聚苯醚和其溶剂混合,用不良的聚苯醚溶剂沉淀聚苯醚颗粒, 引流管,(b)设置在引流管中并选自倾斜桨叶,螺旋叶片和带状叶片的至少一级搅拌叶片,(c)设置在牵伸槽外侧的一个或多个挡板 管,(d)溶液供应口,(e)不良溶剂供应口和(f)排气口; 向包含良溶剂,不良溶剂和聚苯醚颗粒并通过搅拌叶片(b)旋转而循环流动的混合溶液中,将来自溶液供给口(d)的聚苯醚溶液和来自溶液供给口 不良溶剂供应口(e),从而沉淀聚苯醚颗粒; 并且从排气口(f)排出并回收沉淀的聚苯醚颗粒与混合溶液。

    Membrane filtration of polymer containing solutions
    45.
    发明授权
    Membrane filtration of polymer containing solutions 有权
    含聚合物膜的膜过滤

    公开(公告)号:US6162340A

    公开(公告)日:2000-12-19

    申请号:US139791

    申请日:1998-08-25

    申请人: Mohsen Zakikhani

    发明人: Mohsen Zakikhani

    摘要: In a method for recovering polymers in a substantially pure form from a solution containing the polymers, the solution is first treated with a reactant (e.g. an acid, a sequestrant or a mixture of both) to form the free polymers and salts of the reactant. Second, the solution is treated to remove the salts therefrom and in a final stage the polymer solution is concentrated and the polymers recovered. The second treatment step may consist of membrane-filtration, ion-exchange or electrodialysis.

    摘要翻译: 在从含有聚合物的溶液中回收基本上纯的形式的聚合物的方法中,首先用反应物(例如酸,多价螯合剂或两者的混合物)处理该溶液以形成反应物的游离聚合物和盐。 第二,处理溶液以从其中除去盐,并且在最终阶段中聚合物溶液被浓缩并且回收聚合物。 第二处理步骤可以由膜过滤,离子交换或电渗析组成。

    Polymer electrolytes and process for their production
    46.
    发明授权
    Polymer electrolytes and process for their production 失效
    聚合物电解质及其生产工艺

    公开(公告)号:US6096856A

    公开(公告)日:2000-08-01

    申请号:US983626

    申请日:1998-06-24

    摘要: The invention relates to a process for the chlorosulfonation of polyarylene sulfide in which the polyarylene sulfide is completely dissolved in chlorosulfonic acid at a temperature of -10 to +20 C., then agitated at reaction temperatures in the +5 to +20 C. range for a reaction time of 180 min at the most, possibly with the addition of oleum or acetic anhydride and the precipitated in an aqueous medium. The polyarylene sulfide is preferably poly-p-phenylene sulfide. The invention also relates to chlorosulfonated polyarylene sulfide produced by this process, which dissolves in a quantity of 10 to 50 wt % in N-methyl pyrrolidone and has a mean molecular weight Mw of >50,000 g/mol. Finally, the invention also relates to the use of chlorosulfonated polyarylene sulfide for the production of molding, foils, fibres or diaphragms with a proton conductivity in the 2 to 200 mS/cm range.

    摘要翻译: PCT No.PCT / EP96 / 03118 Sec。 371日期:1998年6月24日 102(e)1998年6月24日PCT 1996年7月16日PCT公布。 出版物WO97 / 05191 日期:1997年02月13日本发明涉及聚芳硫醚的氯磺化方法,其中聚芳硫醚在-10〜+ 20℃的温度下完全溶解在氯磺酸中,然后在+5〜 + 20℃,反应时间最多为180分钟,可能加入发烟硫酸或乙酸酐,并在水性介质中沉淀。 聚芳硫醚优选为聚对苯硫醚。 本发明还涉及通过该方法制备的氯磺化聚芳硫醚,其在N-甲基吡咯烷酮中的溶解量为10〜50重量%,平均分子量Mw> 50,000g / mol。 最后,本发明还涉及氯磺化聚芳硫醚用于生产质子传导率在2至200mS / cm范围内的模制品,箔,纤维或隔膜的用途。

    Process for the preparation of cured silicone powder
    49.
    发明授权
    Process for the preparation of cured silicone powder 失效
    固化硅粉的制备方法

    公开(公告)号:US5969039A

    公开(公告)日:1999-10-19

    申请号:US63569

    申请日:1998-04-21

    摘要: A highly productive process for preparing cured silicone powder having a uniform particle size, in which a platinum-alkenylsilozane complex catalyst is added to a water-based dispersion of a silicone composition. The silicone composition is (i) an organopolysiloxane having at least two silicon-bonded alkenyl groups in each molecule, and (ii) an organopolysiloxane having at least two silicon-bonded hydrogen atoms in each molecule. The catalyst is added and dispersed in the form of liquid particles with an average particle size in volumetric particle size distribution in water of no more than one micron.

    摘要翻译: 用于制备具有均匀粒径的固化的硅氧烷粉末的高效生产方法,其中将铂 - 链烯基锡烷烷配合物催化剂加入硅氧烷组合物的水基分散体中。 硅氧烷组合物是(i)在每个分子中具有至少两个与硅键合的烯基的有机聚硅氧烷,和(ii)在每个分子中具有至少两个与硅键合的氢原子的有机聚硅氧烷。 将催化剂以液体颗粒的形式加入并分散,平均颗粒尺寸在水中的体积粒度分布不大于1微米。