Process of discontinuous polycondensation and stirring reactor thereof
    1.
    发明授权
    Process of discontinuous polycondensation and stirring reactor thereof 有权
    不连续缩聚反应器的方法

    公开(公告)号:US07850926B2

    公开(公告)日:2010-12-14

    申请号:US10181076

    申请日:2001-01-08

    IPC分类号: B01J19/18 C08F2/01

    摘要: A process for the discontinuous production of granules from polycondensation polymers by precondensation of an oligomer at 5 to 400 mbar and subsequent polycondensation in a stirring reactor and subsequent granulation. In the vicinity of the outlet port, the density of the entraining surfaces lies between 1 and 8 m2 per m3 reactor space and constantly increases with increasing distance from the discharge region. Inside the reactor, there is a viscosity gradient between the region most remote from the discharge port and the zone of the discharge port. The thermal decomposition of the polymer melt flowing out of the reactor is compensated during granulation.The stirring reactor with horizontal longitudinal axis approximately has the shape of a single or double truncated cone. The reactor has rotatable, vertical product entraining surfaces and stationary scrapers between the same.

    摘要翻译: 通过在5至400毫巴的低聚物预缩合并随后在搅拌反应器中进行缩聚并随后制粒,由缩聚聚合物不连续地生产颗粒的方法。 在出口附近,夹带表面的密度在每立方米反应堆空间为1至8平方米之间,并随着与排放区域的距离增加而不断增加。 在反应器内部,在最远离排出口的区域和排出口的区域之间存在粘度梯度。 在造粒期间补偿流出反应器的聚合物熔体的热分解。 具有水平纵向轴线的搅拌反应器大致具有单个或双截锥体的形状。 反应器具有可旋转的垂直产品夹带表面和固定刮板之间。

    METHOD OF PRODUCING POLYESTERS
    2.
    发明申请
    METHOD OF PRODUCING POLYESTERS 有权
    生产聚酯的方法

    公开(公告)号:US20090240007A1

    公开(公告)日:2009-09-24

    申请号:US12476622

    申请日:2009-06-02

    IPC分类号: C08F2/01

    摘要: Polyesters such as polyethylene, polypropylene and polybutylene terephthalate are made from melts of precondensates of polyesters by first conducting vapors comprising precondensate components distributed in the form of an aerosol through a polycondensation reactor in which precondensate components are deposited on the reactor wall and in an outlet chamber of the reactor on a separator. Then the deposits are conducted to the unstirred discharge sump. Upper layers of the discharge sump are continuously recirculated in the stirred reactor area and thus subjected to reconversion and further polycondensation.

    摘要翻译: 聚酯,例如聚乙烯,聚丙烯和聚对苯二甲酸丁二醇酯由聚酯预缩合物的熔融物制成,首先通过缩聚反应器将包含分散在气溶胶形式的预缩合组分的蒸气引入蒸气中,其中预冷组分沉积在反应器壁上和出口室 的反应器在分离器上。 然后将沉积物导入未搅拌的排放池。 排放池的上层在搅拌的反应器区域中连续再循环,因此进行再转化和进一步缩聚。

    Process of continuously producing polyesters or copolyesters
    3.
    发明授权
    Process of continuously producing polyesters or copolyesters 失效
    连续生产聚酯或共聚酯的工艺

    公开(公告)号:US07153927B2

    公开(公告)日:2006-12-26

    申请号:US10451292

    申请日:2001-11-27

    IPC分类号: C08G63/00

    CPC分类号: B01D3/14 C08G63/78

    摘要: Process for producing polyesters and copolyesters, wherein a continuous esterification of dicarboxylic esters and diols or a continuous transesterification of dicarboxylic esters with diols is effected in “n” reaction pressure stages connected in series, the pressure in the first reaction pressure stage is higher than that of the remaining reaction pressure stages, and successively decreases from reaction pressure stage to succeeding reaction pressure stage, the combined vapor flows of the individual reaction pressure stages are rectified in a rectifying column, and the diol component obtained at the bottom of the rectifying column is recirculated at least to the first reaction pressure stage, and wherein at least the last reaction pressure stage operates at a vacuum, the pressure in the rectifying column is greater than that of the last reaction pressure stage, and the vapors discharged from the last reaction pressure stage are condensed to the pressure existing in the rectifying column.

    摘要翻译: 制备聚酯和共聚酯的方法,其中连续酯化二羧酸酯和二醇或二羧酸酯与二醇的连续酯交换在连续串联的“n”个反应压力阶段中进行,第一反应压力阶段的压力高于第 的剩余反应压力级,从反应压力阶段到后续反应压力阶段相继降低,各个反应压力级的组合蒸气流在精馏塔中精馏,精馏塔底部得到的二醇成分为 至少再循环到第一反应压力级,并且其中至少最后的反应压力级在真空下操作,精馏塔中的压力大于最后反应压力级的压力,并且从最后的反应压力排出的蒸气 阶段被压缩到整流库中存在的压力 嗯

    Method and device for the continuous pre-polycondensation of esterification/transesterification products
    4.
    发明申请
    Method and device for the continuous pre-polycondensation of esterification/transesterification products 审中-公开
    酯化/酯交换产物连续预缩聚的方法和装置

    公开(公告)号:US20060030727A1

    公开(公告)日:2006-02-09

    申请号:US11198872

    申请日:2005-08-06

    IPC分类号: C07C69/76 B01J8/04

    摘要: In a method for the continuous pre-polycondensation of esterification/transesterification products the stream freely passes from top to bottom in a vertical reaction apparatus through a plurality of attached, heatable, sloped open-above bases, through product overflow channels connected with each other. In order to be able to set a determined, efficient as possible product level in the channels, the esterification/transesterification products are fed though closed, annular-type, concentric annular channels or through parallel channels, wherein a partial quantity of the product stream flowing in the channel is discharged at the product overflows and the remaining product stream is passed via drainage openings.

    摘要翻译: 在酯化/酯交换产物的连续预缩聚的方法中,流体通过多个连接,可加热,倾斜的开放的上部基底,通过彼此连接的产品溢流通道,在垂直反应装置中从顶部到底部自由地通过。 为了能够在通道中设定确定的,有效率的产品水平,酯化/酯交换产物通过封闭的,环形的,同心的环形通道或平行通道进料,其中部分量的产物流流动 在通道中产品溢出时排放,剩余的产品流通过排水口进入。

    Method and device for producing polyesters, copolyesters and polycarbonates
    8.
    发明申请
    Method and device for producing polyesters, copolyesters and polycarbonates 有权
    用于生产聚酯,共聚酯和聚碳酸酯的方法和装置

    公开(公告)号:US20050222371A1

    公开(公告)日:2005-10-06

    申请号:US10513227

    申请日:2003-04-02

    摘要: In a process for producing polyester, the esterification of dicarboxylic acids and diols is carried out in at least one reaction stage, the prepolycondensation of the esterification product in at least one reaction stage and the polycondensation of the prepolycondensation product in at least one reaction stage. To increase the capacity of the apparatus forming one or more of the reaction stages in the production of the polyesters, at at least one of the reaction stages the supplied product system before it enters the reaction stage or within the reaction stage is divided into at least two partial streams and the partial streams entirely or partially separate from one another is passed through the reaction stage.

    摘要翻译: 在制造聚酯的方法中,二羧酸和二醇的酯化在至少一个反应阶段进行,酯化产物在至少一个反应阶段中的预缩聚和预缩聚产物在至少一个反应阶段中的缩聚反应。 为了增加在聚酯生产中形成一个或多个反应阶段的装置的能力,在至少一个反应阶段,所提供的产物体系在其进入反应阶段之前或在反应阶段内被分成至少 两个部分流和完全或部分地彼此分离的部分流通过反应阶段。

    X-ray image intensifier with shrink-fitting parts
    10.
    发明授权
    X-ray image intensifier with shrink-fitting parts 失效
    具有收缩配件的X射线图像增强器

    公开(公告)号:US5155349A

    公开(公告)日:1992-10-13

    申请号:US618417

    申请日:1990-11-27

    IPC分类号: H01J29/82 H01J31/50

    CPC分类号: H01J29/82 H01J31/501

    摘要: An x-ray image intensifier has a housing, an input screen, an output screen, and a number of electrodes for the electron optics, the housing including a number of joined parts and at least one of those parts consisting of electrically insulating material. The part or parts of the housing consisting of insulating material have seating surfaces to which parts, such as the electrodes, are secured by shrinking.

    摘要翻译: x射线图像增强器具有壳体,输入屏幕,输出屏幕和用于电子光学器件的多个电极,壳体包括多个接合部件和由电绝缘材料组成的至少一个部件。 由绝缘材料组成的壳体的部分或部分具有座面,通过收缩来固定诸如电极的部分。