Polymerization apparatus of producing vinyl chloride type polymer
    1.
    发明授权
    Polymerization apparatus of producing vinyl chloride type polymer 失效
    生产氯乙烯型聚合物的聚合装置

    公开(公告)号:US5750079A

    公开(公告)日:1998-05-12

    申请号:US758022

    申请日:1996-11-27

    摘要: A polymerization apparatus used, particularly, in suspension polymerization of vinyl chloride, comprising a polymerization vessel (1) having a substantially cylindrical inner space, said inner space of said polymerization vessel being provided with a plurality of baffles (5) comprising vertically extending pipes, and serpentine pipelines (6) each of which is placed between two adjacent baffles and is extended in a serpentine fashion along the polymerization vessel inner wall from the lower part to the upper part of the polymerization vessel, and a refrigerant being passed through said baffles and said serpentine pipelines. High-cooling performance can be obtained, a high-speed reaction in a large-sized polymerization vessel becomes possible, and a stable polymerization reaction can be carried out. A high-quality and uniform polymer that has few fish eyes and has a high bulk specific gravity can be obtained.

    摘要翻译: 一种聚合装置,特别是在氯乙烯的悬浮聚合中使用的聚合装置,包括具有基本上圆柱形的内部空间的聚合容器(1),所述聚合容器的所述内部空间设置有多个包括垂直延伸的管道的挡板(5) 和蛇形管道(6),每个管道布置在两个相邻的挡板之间,并且沿着聚合容器内壁从聚合容器的下部延伸到上部,并且制冷剂通过所述挡板和 说蛇形管道。 可以获得高冷却性能,可以在大型聚合容器中进行高速反应,并且可以进行稳定的聚合反应。 可以获得鱼眼少且体积比重高的高质量且均匀的聚合物。

    Polymerization apparatus and method of producing vinyl chloride type
polymer by using the same
    2.
    发明授权
    Polymerization apparatus and method of producing vinyl chloride type polymer by using the same 失效
    聚合装置及其使用方法制造氯乙烯型聚合物

    公开(公告)号:US5612437A

    公开(公告)日:1997-03-18

    申请号:US364449

    申请日:1994-12-27

    摘要: A vinyl chloride polymer is produced by subjecting vinyl chloride or a monomer mixture made up mainly of vinyl chloride to suspension polymerization in an aqueous medium using a polymerization apparatus equipped with a polymerization vessel. The polymerization apparatus used comprises a polymerization vessel (1) having a substantially cylindrical inner space, said inner space of said polymerization vessel being provided with a plurality of baffles (5) comprising vertically extending pipes, and serpentine pipelines (6) each of which is placed between two adjacent baffles and is extended in a serpentine fashion along the polymerization vessel inner wall from the lower part to the upper part of the polymerization vessel, and a refrigerant being passed through said baffles and said serpentine pipelines. High-cooling performance can be obtained, a high-speed reaction in a large-sized polymerization vessel becomes possible, and a stable polymerization reaction can be carried out. A high-quality and uniform polymer that has few fish eyes and has a high bulk specific gravity can be obtained.

    摘要翻译: 使用装有聚合容器的聚合装置,将氯乙烯或主要由氯乙烯组成的单体混合物在含水介质中进行悬浮聚合来制备氯乙烯聚合物。 使用的聚合装置包括具有基本上圆柱形的内部空间的聚合容器(1),所述聚合容器的内部空间设置有多个包括垂直延伸的管道的挡板(5)和蛇形管道(6) 放置在两个相邻的挡板之间,并且沿着聚合容器内壁从聚合容器的下部延伸到上部延伸,并且制冷剂通过所述挡板和所述蛇形管道。 可以获得高冷却性能,可以在大型聚合容器中进行高速反应,并且可以进行稳定的聚合反应。 可以获得鱼眼少且体积比重高的高质量且均匀的聚合物。

    Polymerization process with recycle line containing screen with rodlike
projection
    3.
    发明授权
    Polymerization process with recycle line containing screen with rodlike projection 失效
    含有棒状投影的含有筛网的再生线的聚合过程

    公开(公告)号:US5444131A

    公开(公告)日:1995-08-22

    申请号:US233822

    申请日:1994-04-26

    摘要: A polymerization apparatus that is equipped with a circulation path for the flow of a reaction mixture that comprises a polymerization vessel, a heat exchanger arranged outside said polymerization vessel, and a pipeline that is extended from said polymerization vessel, is returned to said polymerization vessel through said heat exchanger, and is provided with a strainer in the course thereof, wherein the surface of a filter provided in said strainer that is located upstream has rodlike projections, and a method of producing a polymer of a monomer having an ethylenically unsaturated double bond by using said apparatus. Scale and polymers in the form of blocks can be prevented from mixing into the reaction mixture. Therefore, where the obtained sheet is molded into a sheet or the like, fish eyes can be reduced and even if the polymerization is repeated, clogging of the tubes of the heat exchanger and dropping in the flow velocity of the reaction mixture can be prevented.

    摘要翻译: 配备有用于使包含聚合容器,设置在聚合容器外部的热交换器和从所述聚合容器延伸的管道的反应混合物流动的循环路径的聚合装置返回到所述聚合容器,通过 所述热交换器在其过程中设置有过滤器,其中设置在位于上游的所述过滤器中的过滤器的表面具有棒状突起,以及通过以下步骤制造具有烯属不饱和双键的单体的聚合物的方法: 使用所述装置。 可以防止垢和块状聚合物混入反应混合物中。 因此,在得到的片材成型为片材等的情况下,鱼眼可以减少,即使重复聚合,也可以防止热交换器的管堵塞和反应混合物的流速下降。

    Preparation of organohalosilanes
    4.
    发明授权
    Preparation of organohalosilanes 有权
    有机硅烷的制备

    公开(公告)号:US06395917B1

    公开(公告)日:2002-05-28

    申请号:US09981822

    申请日:2001-10-19

    IPC分类号: C07F716

    CPC分类号: C07F7/16

    摘要: When oganohalosilanes are prepared by charging a reactor with a contact mass containing a metallic silicon powder, a copper catalyst and a co-catalyst, and introducing an organohalide-containing gas into the reactor to effect the direct reaction, the catalyst and/or co-catalyst used in the contact mass is obtained by mixing particles of the catalyst and/or co-catalyst with finely divided silica, and applying shear forces to the mixture for mutually rubbing the particles, thereby producing the catalyst and/or co-catalyst having finely divided silica fused to surfaces thereof. The invention is successful in producing organohalosilanes at a significantly improved formation rate without reducing the proportion of diorganodihalosilane.

    摘要翻译: 当通过向包含金属硅粉末,铜催化剂和助催化剂的接触物质装入反应器并且将含有机卤化物的气体引入反应器以进行直接反应来制备原料卤代硅烷时,催化剂和/ 通过将催化剂和/或助催化剂的颗粒与细碎的二氧化硅混合,并向混合物施加剪切力以相互摩擦颗粒而获得催化剂,从而制备具有细小的催化剂和/或助催化剂的催化剂和/或助催化剂 分开的二氧化硅与其表面融合。 本发明成功地以显着提高的形成速率生产有机卤代硅烷,而不降低二有机二卤代硅烷的比例。

    Preparation of organohalosilanes
    5.
    发明授权
    Preparation of organohalosilanes 有权
    有机硅烷的制备

    公开(公告)号:US06242629B1

    公开(公告)日:2001-06-05

    申请号:US09657282

    申请日:2000-09-07

    IPC分类号: C07F716

    CPC分类号: C07F7/16

    摘要: When oganohalosilanes are prepared by charging a reactor with a contact mass containing a metallic silicon powder and a copper catalyst, and introducing an organohalide-containing gas into the reactor to effect the direct reaction, a poly(organo)phosphino compound is added to the contact mass. The invention is successful in producing organohalosilanes at a significantly improved production rate without reducing the selectivity of useful silane.

    摘要翻译: 当通过向包含金属硅粉末和铜催化剂的接触物质填充反应器并且将含有机卤化物的气体引入反应器以进行直接反应来制备原料卤代硅烷时,向接触物中加入聚(有机)膦基化合物 质量 本发明成功地以显着提高的生产速率生产有机卤代硅烷,而不降低有用硅烷的选择性。

    Biodegradable polymer compositions and shrink films
    6.
    发明授权
    Biodegradable polymer compositions and shrink films 失效
    可生物降解聚合物组合物和收缩膜

    公开(公告)号:US5726220A

    公开(公告)日:1998-03-10

    申请号:US703994

    申请日:1996-08-28

    摘要: The present invention provides polylactic compositions effecting an excellent mold releasability upon processing and significantly improved elongation at break and impact strength without affecting the transparency. Also provided is a shrink film which decomposes under the natural environment and has excellent transparency, flexibility, shrinkability and mold releasability upon processing by applying the polylactic acid composition to a shrink film. There is provided a biodegradable polymer composition comprising 100 parts by weight of polylactic acid and 5 to 70 parts by weight of EVA. Further, a biodegradable polymer composition is provided comprising the polymer composition with one or more additives selected from the group consisting of 0.05 to 5 parts by weight of a lubricant, 1 to 50 parts by weight of plasticizer, 0.5 to 5 parts by weight of thermal stabilizer and 0.05 to 5 parts by weight of mold releasing agent. These biodegradable polymer compositions are applied to shrink films.

    摘要翻译: 本发明提供了在加工时效果优异的脱模性和明显提高的断裂伸长率和冲击强度而不影响透明度的聚乳酸组合物。 还提供了一种在自然环境下分解并且通过将聚乳酸组合物施用于收缩膜的加工时具有优异的透明性,柔软性,收缩性和脱模性的收缩膜。 提供了包含100重量份的聚乳酸和5至70重量份的EVA的可生物降解的聚合物组合物。 此外,提供了一种可生物降解的聚合物组合物,其包含聚合物组合物与一种或多种添加剂,所述添加剂选自0.05至5重量份的润滑剂,1至50重量份的增塑剂,0.5至5重量份的热 稳定剂和0.05〜5重量份的脱模剂。 将这些可生物降解的聚合物组合物用于收缩膜。

    Particulate silica and its preparation
    8.
    发明授权
    Particulate silica and its preparation 失效
    颗粒状二氧化硅及其制备方法

    公开(公告)号:US06932953B2

    公开(公告)日:2005-08-23

    申请号:US10000340

    申请日:2001-12-04

    IPC分类号: C01B33/18

    摘要: Particulate silica is prepared by feeding a gas mixture of an organohalosilane gas, a flammable gas capable of generating water vapor when burned, and a free oxygen-containing gas to a reaction chamber through a multiple-tube burner, whereby the organohalosilane is subjected to flame hydrolysis and oxidation reaction. The amount of the flammable gas fed is 0.5-9 mol per mol of the organohalosilane and such that the amount of water vapor resulting from combustion of the flammable gas is 1-6 times the stoichiometric amount, and the gas mixture is fed to the center tube of the burner such that it may have a linear velocity at the outlet of 50-120 m/sec, calculated in the standard state. The resulting silica has a surface area of 100-400 m2/g and a narrow particle size distribution of primary particles and ensures the transparency of silicone rubber filled therewith.

    摘要翻译: 通过将有机卤硅烷气体,能够在燃烧时产生水蒸汽的可燃气体和游离含氧气体的气体混合物通过多管燃烧器送入反应室来制备颗粒状二氧化硅,由此使有机卤代硅烷受到火焰 水解和氧化反应。 可燃气体的供给量为每摩尔有机卤代硅烷为0.5-9摩尔,使得由可燃性气体燃烧产生的水蒸气的量为化学计量的1-6倍,并将气体混合物供给到中心 燃烧器管,使得其可以在50-120m / sec的出口处具有以标准状态计算的线速度。 得到的二氧化硅的表面积为100-400m 2 / g,一次颗粒的粒度分布窄,确保了填充硅橡胶的透明度。

    Preparation of organohalosilanes
    9.
    发明授权
    Preparation of organohalosilanes 有权
    有机硅烷的制备

    公开(公告)号:US06727376B2

    公开(公告)日:2004-04-27

    申请号:US10230093

    申请日:2002-08-29

    IPC分类号: C07F716

    CPC分类号: C07F7/16

    摘要: In an industrial process for preparing organohalosilanes by reacting metallic silicon particles with an organohalide in the presence of a copper catalyst, a contact mass composed of the metallic silicon and the catalyst further contains an effective amount of a phosphonium compound having on the molecule at least one group of the formula: [R2R3R4P—]+Y− wherein R2, R3 and R4 each are a monovalent hydrocarbon group and Y is a halogen atom or acid group. The invention drastically increases the silane formation rate and the utilization of silicon without lowering the selectivity of useful silane.

    摘要翻译: 在铜催化剂存在下,通过使金属硅颗粒与有机卤化物反应制备有机卤代硅烷的工业过程中,由金属硅和催化剂组成的接触物质还含有有效量的在分子上具有至少一个 其中R 2,R 3和R 4各自为一价烃基,并且其中R 2,R 3,R 4, Y是卤素原子或酸基。 本发明大大提高了硅烷的形成速率和硅的利用率,而不降低有用硅烷的选择性。