Common solvent process for producing high molecular weight halobutyl rubber
    13.
    发明授权
    Common solvent process for producing high molecular weight halobutyl rubber 有权
    用于生产高分子量卤代丁基橡胶的常用溶剂方法

    公开(公告)号:US09309333B2

    公开(公告)日:2016-04-12

    申请号:US12999669

    申请日:2009-07-09

    摘要: An integrated process for the solution polymerization and subsequent halogenation of butyl rubber in a common medium is disclosed. The process comprises providing a solution polymerization reactor containing a C6 medium mixed with a monomer mixture comprising at least an isoolefin monomer and a multiolefin monomer in a mass ratio of monomer mixture to medium of from 61:39 to 80:20. Once polymerized, residual unreacted monomer mixture is separated from the rubber solution using a distillation process. The residual monomers may then be purified and recycled back into the reactor. The separated rubber solution is then halogenated. The process obviates the need for separating the rubber from the medium following polymerization, then re-dissolving it in another solvent for halogenation, thereby saving energy cost. The process optionally employs heat exchangers for the reactor feed streams to further reduce energy consumption.

    摘要翻译: 公开了一种用于普通介质中的丁基橡胶的溶液聚合和随后卤化的整合方法。 该方法包括提供一种溶液聚合反应器,其包含与包含至少异构烯烃单体和多烯烃单体的单体混合物的C6介质,其中单体混合物的质量比为61:39至80:20。 一旦聚合,残留的未反应单体混合物就使用蒸馏方法从橡胶溶液中分离出来。 然后可以将残留的单体纯化并循环回到反应器中。 然后将分离的橡胶溶液卤化。 该方法消除了在聚合之后将橡胶与介质分离的需要,然后将其再溶解在另一溶剂中用于卤化,由此节省了能量成本。 该方法任选地使用反应器进料流的热交换器来进一步降低能量消耗。

    EXTRUDER WITH INTEGRATED DIE PLATE AND METHOD FOR DEGASING POLYMER MIXTURES
    14.
    发明申请
    EXTRUDER WITH INTEGRATED DIE PLATE AND METHOD FOR DEGASING POLYMER MIXTURES 有权
    具有整体式切片机的挤出机和用于降低聚合物混合物的方法

    公开(公告)号:US20140039142A1

    公开(公告)日:2014-02-06

    申请号:US13811330

    申请日:2011-07-22

    IPC分类号: B29B7/84

    摘要: The invention is directed to an extruder (10), particularly for extruding a synthetic rubber product, which comprises a barrel (24), one or several extruder elements (12, 14), particularly one or several extruder screws and/or a kneader elements (14), arranged inside the barrel (24) for conveying the product, optionally an inlet port for feeding a stripping agent into the barrel (24) and an outlet port for removing volatile compounds from the product and, where applicable, the stripping agent. According to the invention a perforated die plate (26) is fixed to the barrel (24) in flow direction before the outlet port. Since the die plate (26) is not fixed to the extruder elements (12, 14) but to the barrel (24) a circumferential clearance between the die plate (26) and the barrel (24) is prevented so that no extruded material is passing the die plate (26) radially outside. Parts of the extruded material comprising a low surface area to volume ratio are prevented so that the evaporation of volatile compounds is facilitated.

    摘要翻译: 本发明涉及挤出机(10),特别是用于挤出合成橡胶产品,其包括桶(24),一个或多个挤出机元件(12,14),特别是一个或多个挤出机螺杆和/或捏合元件 (14),布置在所述筒体(24)内用于输送所述产品,任选地用于将汽提剂进料到所述筒体(24)中的入口和用于从所述产品中除去挥发性化合物的出口端口,以及在适用的情况下,所述汽提剂 。 根据本发明,穿孔模板(26)在出口之前沿流动方向固定到筒体(24)。 由于模板(26)不固定到挤出机元件(12,14)而是固定到筒体(24)上,因此防止了模板(26)和筒体(24)之间的周向间隙,使得不挤出材料 径向地穿过模板(26)。 防止包含低表面积与体积比的挤出材料的部分,从而促进挥发性化合物的蒸发。

    Extruder with integrated die plate and method for degasing polymer mixtures
    15.
    发明授权
    Extruder with integrated die plate and method for degasing polymer mixtures 有权
    具有集成模板的挤出机和用于脱胶聚合物混合物的方法

    公开(公告)号:US09023983B2

    公开(公告)日:2015-05-05

    申请号:US13811330

    申请日:2011-07-22

    摘要: The invention is directed to an extruder (10), particularly for extruding a synthetic rubber product, which comprises a barrel (24), one or several extruder elements (12, 14), particularly one or several extruder screws and/or a kneader elements (14), arranged inside the barrel (24) for conveying the product, optionally an inlet port for feeding a stripping agent into the barrel (24) and an outlet port for removing volatile compounds from the product and, where applicable, the stripping agent. According to the invention a perforated die plate (26) is fixed to the barrel (24) in flow direction before the outlet port. Since the die plate (26) is not fixed to the extruder elements (12, 14) but to the barrel (24) a circumferential clearance between the die plate (26) and the barrel (24) is prevented so that no extruded material is passing the die plate (26) radially outside. Parts of the extruded material comprising a low surface area to volume ratio are prevented so that the evaporation of volatile compounds is facilitated.

    摘要翻译: 本发明涉及挤出机(10),特别是用于挤出合成橡胶产品,其包括桶(24),一个或多个挤出机元件(12,14),特别是一个或多个挤出机螺杆和/或捏合元件 (14),布置在所述筒体(24)内用于输送所述产品,任选地用于将汽提剂进料到所述筒体(24)中的入口和用于从所述产品中除去挥发性化合物的出口端口,以及在适用的情况下,所述汽提剂 。 根据本发明,穿孔模板(26)在出口之前沿流动方向固定到筒体(24)。 由于模板(26)不固定到挤出机元件(12,14)而是固定到筒体(24)上,因此防止了模板(26)和筒体(24)之间的周向间隙,使得不挤出材料 径向地穿过模板(26)。 防止包含低表面积与体积比的挤出材料的部分,从而促进挥发性化合物的蒸发。

    COMMON SOLVENT PROCESS FOR PRODUCING HIGH MOLECULAR WEIGHT HALOBUTYL RUBBER
    16.
    发明申请
    COMMON SOLVENT PROCESS FOR PRODUCING HIGH MOLECULAR WEIGHT HALOBUTYL RUBBER 有权
    用于生产高分子重量橡胶橡胶的常用方法

    公开(公告)号:US20110257342A1

    公开(公告)日:2011-10-20

    申请号:US12999669

    申请日:2009-07-09

    IPC分类号: C08L9/00

    摘要: An integrated process for the solution polymerization and subsequent halogenation of butyl rubber in a common medium is disclosed. The process comprises providing a solution polymerization reactor containing a C6 medium mixed with a monomer mixture comprising at least an isoolefin monomer and a multiolefin monomer in a mass ratio of monomer mixture to medium of from 61:39 to 80:20. Once polymerized, residual unreacted monomer mixture is separated from the rubber solution using a distillation process. The residual monomers may then be purified and recycled back into the reactor. The separated rubber solution is then halogenated. The process obviates the need for separating the rubber from the medium following polymerization, then re-dissolving it in another solvent for halogenation, thereby saving energy cost. The process optionally employs heat exchangers for the reactor feed streams to further reduce energy consumption.

    摘要翻译: 公开了一种用于普通介质中的丁基橡胶的溶液聚合和随后卤化的整合方法。 该方法包括提供一种溶液聚合反应器,其包含与包含至少异构烯烃单体和多烯烃单体的单体混合物的C6介质,其中单体混合物的质量比为61:39至80:20。 一旦聚合,残留的未反应单体混合物就使用蒸馏方法从橡胶溶液中分离出来。 然后可以将残留的单体纯化并循环回到反应器中。 然后将分离的橡胶溶液卤化。 该方法消除了在聚合之后将橡胶与介质分离的需要,然后将其再溶解在另一溶剂中用于卤化,由此节省了能量成本。 该方法任选地使用反应器进料流的热交换器来进一步降低能量消耗。

    Device and method for gas dispersion
    18.
    发明授权
    Device and method for gas dispersion 有权
    气体分散装置及方法

    公开(公告)号:US09440201B2

    公开(公告)日:2016-09-13

    申请号:US13818370

    申请日:2011-05-19

    摘要: The invention relates to a device for dispersing gas into a liquid. The devise has a number n of successive zones Z1, Z2, . . . , Zn having static mixing elements, wherein each zone Zi has a length Li and an effective diameter Di. The mechanical energy input Et, which is standardized to the particular ratio Li/Di and acts on the gas/liquid mixture, increases from zone to zone in the flow direction. In this connection n is a whole number greater than or equal to 3 and i is an index which runs through the whole numbers from 1 to the number n of zones. The invention further relates to a method for dispersing gas into a liquid using the device according to the invention.

    摘要翻译: 本发明涉及一种用于将气体分散到液体中的装置。 设备具有数个n个连续区域Z1,Z2,...。 。 。 ,Zn具有静态混合元件,其中每个区域Zi具有长度Li和有效直径Di。 标准化为特定比率Li / Di并作用于气/液混合物的机械能量输入Et在流动方向上从区域增加到区域。 在这种情况下,n是大于或等于3的整数,i是从1到数n个区域的整数的索引。 本发明还涉及使用根据本发明的装置将气体分散到液体中的方法。

    Process for the production of polycarbonate
    19.
    发明授权
    Process for the production of polycarbonate 有权
    聚碳酸酯生产工艺

    公开(公告)号:US07129315B2

    公开(公告)日:2006-10-31

    申请号:US11105680

    申请日:2005-04-14

    IPC分类号: C08G64/00

    CPC分类号: C08G64/403 C08G64/205

    摘要: A process for the isolation of polycarbonate produced by the interfacial polymerization process is disclosed. Accordingly, the process entails (a) evaporating the organic solvent from the solution that contains solvent and polycarbonate to obtain a material system that contains 90 to 99.95% polycarbonate, the percent being relative to the weight of the system, and (b) passing the material system through inlet openings of a separating vessel to obtain a plurality of streams of polycarbonate, on entry into the inlet openings said material system being supersaturated with volatile constituents to an extent of at least 1 bar and having a temperature of 250° to 340° C. and a flow rate of 0.1 to 20 kg/hour, and (c) degassing the streams in the separating vessel wherein the pressure is 0.1 to 20 mbar to effect degassing of the polycarbonate.

    摘要翻译: 公开了通过界面聚合方法分离聚碳酸酯的方法。 因此,该方法需要(a)从含有溶剂和聚碳酸酯的溶液中蒸发有机溶剂以获得含有90至99.95%聚碳酸酯的材料体系,其百分数相对于体系重量,和(b)使 材料系统通过分离容器的入口开口,以获得多个聚碳酸酯流,在进入入口时,所述材料体系用挥发性成分过饱和至少1巴,温度为250°至340° 并且流速为0.1至20kg /小时,和(c)使分离容器中的气流脱气,其中压力为0.1至20毫巴,以实现聚碳酸酯脱气。

    Process for the preparation of polycarbonate
    20.
    发明授权
    Process for the preparation of polycarbonate 有权
    制备聚碳酸酯的方法

    公开(公告)号:US07091302B2

    公开(公告)日:2006-08-15

    申请号:US11105678

    申请日:2005-04-14

    IPC分类号: C08G64/00

    CPC分类号: C08G64/205 C08G64/307

    摘要: The invention describes a process for the preparation of polycarbonate. The process includes (a) transesterifying at least one aromatic dihydroxyaryl compound and a diaryl carbonate in the melt in the presence of a catalyst, (b) mixing the melt obtained in step (a) with a foaming agent (c) passing the mixture at 250 to 340° C. through inlet openings of a separating vessel at a rate of 0.1 to 20 kg/hour, to obtain a plurality of streams of foamed polycarbonate and degassing the streams of foamed polycarbonate in the separating vessel wherein the pressure is 0.1 to 20 mbar.

    摘要翻译: 本发明描述了制备聚碳酸酯的方法。 该方法包括(a)在催化剂存在下,在熔体中将至少一种芳族二羟基芳基化合物和碳酸二芳基酯酯交换反应,(b)将步骤(a)中获得的熔体与通过该混合物的发泡剂(c) 通过分离容器的入口开口以0.1至20kg /小时的速度通过入口开口250至340℃,以获得多个发泡聚碳酸酯流并在分离容器中对发泡聚碳酸酯流进行脱气,其中压力为0.1至 20毫巴