Polypropylene ethylene-propylene copolymer blends and in-line process t produce them
    1.
    发明申请
    Polypropylene ethylene-propylene copolymer blends and in-line process t produce them 有权
    聚丙烯乙烯 - 丙烯共聚物共混物和在线工艺生产它们

    公开(公告)号:US20090163643A1

    公开(公告)日:2009-06-25

    申请号:US12317045

    申请日:2008-12-18

    IPC分类号: C08L23/16 C08L23/12 C08F2/01

    摘要: Isotactic polypropylene ethylene-propylene copolymer blends and in-line processes for producing them. The blend of polypropylene and ethylene-propylene copolymer may have between 1 and 50 wt % of isotactic polypropylene with a melt flow rate of between 0.5 and 20,000 g/10 min and a melting peak temperature of 145° C. or higher, and wherein the difference between the DSC peak melting and the peak crystallization temperatures is less than or equal to 0.5333 times the melting peak temperature minus 41.333° C., and between 50 and 99 wt % of ethylene-propylene copolymer including between 10 wt % and 20 wt % randomly distributed ethylene with a melt flow rate of between 0.5 and 20,000 g/10 min, wherein the copolymer is polymerized by a bulk homogeneous polymerization process, and wherein the total regio defects in the continuous propylene segments of the copolymer is between 40 and 150% greater than a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process. The in-line process for producing the blend includes providing two or more parallel reactor trains and a separator for product blending and product-feed separation; wherein the two or more reactor trains operate under fluid phase bulk homogeneous conditions and at least one of the trains operates under supercritical conditions.

    摘要翻译: 全同立构聚丙烯乙烯 - 丙烯共聚物共混物和在线生产方法。 聚丙烯和乙烯 - 丙烯共聚物的共混物可以具有1至50重量%的全同立构聚丙烯,熔体流动速率在0.5至20,000g / 10min之间,熔融峰温度为145℃或更高,其中 DSC峰值熔融和峰值结晶温度之间的差异小于或等于熔融峰值温度减去41.333℃的0.5333倍,和包含10重量%至20重量%之间的乙烯 - 丙烯共聚物的50至99重量% 熔体流动速率为0.5至20,000g / 10min的随机分布的乙烯,其中共聚物通过本体均相聚合方法聚合,并且其中共聚物的连续丙烯链段中的总区域缺陷为40-150% 大于通过溶液聚合方法聚合的当量熔体流动速率和wt%乙烯的共聚物。 用于生产共混物的在线方法包括提供两个或更多个平行的反应器列和用于产物共混和产物进料分离的分离器; 其中所述两个或多个反应器列车在流体相体积均匀条件下操作,并且所述列车中的至少一个在超临界条件下操作。

    POLYPROPYLENE ETHYLENE-PROPYLENE COPOLYMER BLENDS AND IN-LINE PROCESS TO PRODUCE THEM
    4.
    发明申请
    POLYPROPYLENE ETHYLENE-PROPYLENE COPOLYMER BLENDS AND IN-LINE PROCESS TO PRODUCE THEM 有权
    聚丙烯乙烯 - 丙烯共聚物共混物和在线工艺生产

    公开(公告)号:US20120225998A1

    公开(公告)日:2012-09-06

    申请号:US13371733

    申请日:2012-02-13

    IPC分类号: C08F2/02 C08L23/14

    摘要: Isotactic polypropylene ethylene-propylene copolymer blends and in-line processes for producing. The blends may have between 1 and 50 wt % of isotactic polypropylene with a melt flow rate of between 0.5 and 20,000 g/10 min and a melting peak temperature of 145° C. or higher, and wherein the difference between the DSC peak melting and the peak crystallization temperatures is less than or equal to 0.5333 times the melting peak temperature minus 41.333° C., and between 50 and 99 wt % of ethylene-propylene copolymer including between 10 wt % and 20 wt % randomly distributed ethylene with a melt flow rate of between 0.5 and 20,000 g/10 min, wherein the copolymer is polymerized by a bulk homogeneous polymerization process, and wherein the total regio defects in the continuous propylene segments of the copolymer is between 40 and 150% greater than a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process.

    摘要翻译: 全同立构聚丙烯乙烯 - 丙烯共聚物共混物和在线生产方法。 共混物可以具有1至50重量%的全同立构聚丙烯,熔体流动速率为0.5至20,000g / 10min,熔融峰温度为145℃或更高,并且其中DSC峰值熔融和 峰值结晶温度小于或等于熔融峰温度减去41.333℃的0.5333倍,和包含10重量%至20重量%的乙烯 - 丙烯共聚物的50至99重量%之间,随机分布的乙烯和熔体流动 速率为0.5至20,000g / 10min,其中共聚物通过本体均相聚合方法聚合,并且其中共聚物的连续丙烯链段中的总区域缺陷比等同熔体的共聚物大40至150% 流速和wt%乙烯通过溶液聚合方法聚合。

    In-line process for producing plasticized polymers and plasticized polymer blends
    8.
    发明授权
    In-line process for producing plasticized polymers and plasticized polymer blends 有权
    用于生产增塑聚合物和增塑聚合物共混物的在线方法

    公开(公告)号:US07928162B2

    公开(公告)日:2011-04-19

    申请号:US12283045

    申请日:2008-09-09

    IPC分类号: C08F2/12 C08F6/00 C08L23/02

    摘要: A process for fluid phase in-line blending of plasticized polymers is provided. The process includes providing two or more reactor trains configured in parallel and a separator for product blending and product-feed separation, wherein one or more of the reactor trains produces one or more polymers and one or more of the reactor trains produces one or more plasticizers; contacting in at least one of the parallel reactor trains olefin monomers, catalyst systems, optional comonomers, optional scavengers, and optional diluents or solvents, at a temperature above the solid-fluid phase transition temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1500 MPa; forming a reactor effluent including a homogeneous fluid phase polymer-monomer mixture and plasticizer-monomer mixture in each parallel reactor train; passing the reactor effluents through the separator; maintaining the temperature and pressure within the separator above the solid-fluid phase transition point but below the cloud point pressure and temperature to form a fluid-fluid two-phase system including a plasticized polymer-rich blend phase and a monomer-rich phase; and separating the monomer-rich phase from the plasticized polymer-rich blend phase. The polymer-rich blend phase is conveyed to a downstream finishing stage for further monomer stripping, drying and/or pelletizing to form a plasticized polymer product blend. Suitable plasticizers for in-line production and blending include polyalphaolefin oligomers, polybutenes, low glass transition temperature polymers and combinations thereof.

    摘要翻译: 提供了一种用于增塑聚合物的流体相在线共混的方法。 该方法包括提供并联配置的两个或多个反应器列和用于产物共混和产物 - 进料分离的分离器,其中一个或多个反应器列产生一种或多种聚合物,并且一个或多个反应器列产生一种或多种增塑剂 ; 在高于聚合体系的固体 - 流体相转变温度的温度下,在至少一个平行反应器系列烯烃单体,催化剂体系,任选的共聚单体,任选的清除剂和任选的稀释剂或溶剂中接触,并且压力不低于10 MPa低于聚合体系的浊点压力,小于1500MPa; 在每个平行的反应器列中形成包含均相流体相聚合物 - 单体混合物和增塑剂 - 单体混合物的反应器流出物; 使反应器流出物通过分离器; 将分离器内的温度和压力保持在固体 - 流体相转变点之上但低于浊点压力和温度,以形成包括增塑的富含聚合物的共混相和富单体相的流体 - 流体两相系统; 并将富单体相与增塑的富聚合物相分离。 富含聚合物的共混相被输送到下游整理阶段以用于进一步的单体汽提,干燥和/或造粒以形成增塑的聚合物产物混合物。 用于在线生产和共混的合适的增塑剂包括聚α-烯烃低聚物,聚丁烯,低玻璃化转变温度聚合物及其组合。