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    • 8. 发明授权
    • Bulk homogeneous polymerization process for ethylene propylene copolymers
    • 乙烯丙烯共聚物的均匀聚合方法
    • US07910679B2
    • 2011-03-22
    • US12291898
    • 2008-11-14
    • Gabor KissRobert Patrick Reynolds, Jr.John W. ChuSteven P. RuckerJames Richardson Lattner
    • Gabor KissRobert Patrick Reynolds, Jr.John W. ChuSteven P. RuckerJames Richardson Lattner
    • C08F2/02C08F210/06C08F4/643
    • C08F210/16C08F4/65908C08F4/65927C08F210/06Y10S526/902C08F2/02C08F2/14C08F2500/03C08F2500/12
    • Provided are bulk homogeneous polymerization processes for producing ethylene propylene random copolymers. The process includes contacting in a reactor or in a series of reactors propylene monomer, ethylene comonomer with one or more catalyst systems and optional solvent (present at less than 40 wt %), wherein the reactor train is at a temperature of between 65° C. and 180° C. and at a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1500 MPa, and wherein the polymerization system for the reactor train is in its dense fluid state to form a polymer reactor effluent including a homogeneous fluid phase polymer-monomer mixture in the reactor train; and wherein the resultant copolymer product comprises between 10 wt % and 20 wt % randomly distributed ethylene and the concentration of total region defects in the continuous propylene segments of the random EP copolymer is between 40 and 150% greater than in a copolymer of equivalent melt flow rate and wt % ethylene polymerized by a solution polymerization process.
    • 提供用于生产乙烯丙烯无规共聚物的本体均相聚合方法。 该方法包括使反应器或一系列反应器中的丙烯单体,乙烯共聚单体与一种或多种催化剂体系和任选的溶剂(以小于40wt%存在)接触,其中反应器系在65℃ 并且在低于聚合体系的浊点压力不低于10MPa的压力下低于1500MPa,并且其中反应器系列的聚合系统处于其致密的流体状态以形成聚合物反应器 流出物包括在反应器系列中的均相流体相聚合物 - 单体混合物; 并且其中所得共聚物产物包含10重量%至20重量%的随机分布的乙烯,并且随机EP共聚物的连续丙烯链段中总区域缺陷的浓度比当量熔体流动的共聚物中的区域间缺陷的浓度高40至150% 速率和wt%乙烯通过溶液聚合方法聚合。
    • 9. 发明授权
    • In-line process for producing plasticized polymers and plasticized polymer blends
    • 用于生产增塑聚合物和增塑聚合物共混物的在线方法
    • US07928162B2
    • 2011-04-19
    • US12283045
    • 2008-09-09
    • Gabor KissAlan Anthony GaluskaRobert Patrick Reynolds, Jr.John W. ChuBryan R. ChapmanPatrick BrantSudhin Datta
    • Gabor KissAlan Anthony GaluskaRobert Patrick Reynolds, Jr.John W. ChuBryan R. ChapmanPatrick BrantSudhin Datta
    • C08F2/12C08F6/00C08L23/02
    • C08F10/00B01J2219/00038B01J2219/0004C08F210/16C08J3/18C08F2/01C08F2/001C08F210/14C08F2500/12C08F2500/08C08F2500/20
    • 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.
    • 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。