Monomer/solvent separation and recycle process for propylene containing polymers
    31.
    发明授权
    Monomer/solvent separation and recycle process for propylene containing polymers 有权
    含丙烯聚合物的单体/溶剂分离和循环过程

    公开(公告)号:US08067512B2

    公开(公告)日:2011-11-29

    申请号:US12384401

    申请日:2009-04-03

    IPC分类号: C08F2/00 C08F110/06

    摘要: Monomer/solvent separation and recycle processes for continuous supercritical, solution and advanced solution polymerization processes for propylene-containing polymers and their blends are provided. The advantageous monomer/solvent separation and recycle process includes heating a polymer-lean recycle stream coming from a gravimetric separator positioned downstream of the reactor to form a heated polymer-lean recycle stream, and subsequently combining the heated polymer-lean recycle stream with the one or more homogenous reactor effluent streams to form a heated reactor effluent mixed stream. The heated reactor effluent mixed stream may then be passed through a pressure let-down valve followed and a gravimetric separator, such as to provide for reduced fouling propensity of the polymer-rich phase and sufficient heating of the polymer-rich phase to be able to pass through the remainder of the processing steps to form a propylene based polymer product without additional heat.

    摘要翻译: 提供了用于含丙烯聚合物及其共混物的连续超临界,溶液和高级溶液聚合方法的单体/溶剂分离和再循环方法。 有利的单体/溶剂分离和再循环方法包括加热来自位于反应器下游的重力分离器的贫聚合物再循环流,形成加热的贫聚合物循环流,随后将加热的贫聚合物再循环流与 或更均匀的反应器流出物流以形成加热的反应器流出物混合流。 然后,加热的反应器流出物混合流可以通过压力降压阀和重量分离器,例如提供富聚合物相的减少的结垢倾向,并充分加热富含聚合物的相以能够 通过其余的处理步骤以形成无需额外热量的丙烯基聚合物产品。

    Elastomeric Polymer Blends and Processes for Their Production
    32.
    发明申请
    Elastomeric Polymer Blends and Processes for Their Production 有权
    弹性体聚合物共混物及其制备方法

    公开(公告)号:US20110207888A1

    公开(公告)日:2011-08-25

    申请号:US13015364

    申请日:2011-01-27

    IPC分类号: C08L23/14 C08J5/00

    摘要: Elastomeric polymer blends and processes for their production are described. Specifically, the polymer blends comprise a first polymer and a second polymer, where the first polymer comprises from about 70 wt % to about 90 wt % units derived from propylene and from about 10 wt % to about 30 wt % units derived from ethylene and/or a C4-C10 alpha-olefin, and the second polymer comprises from about 88 wt % to about 98 wt % units derived from propylene and from about 2 wt % to about 12 wt % units derived from ethylene and/or a C4-C10 alpha-olefin. The elastomeric polymer blends are further characterized by having two or more of the following properties: an overall propylene content of between about 75 wt % and about 90 wt %, a melting point between about 110° C. and about 145° C., a Vicat softening point greater than about 45° C., a tensile stress at 300% strain of less than about 500 psi (3447 kPa), as determined by a stress strain test according to ASTM D412, or an average maximum force for pellet separation of less than about 10 N in an accelerated storage stability test. The polymer blends are produced in a dual reactor process, in which the first polymer and the second polymer are prepared using differing catalyst systems.

    摘要翻译: 描述了弹性聚合物共混物及其生产方法。 具体地,聚合物共混物包含第一聚合物和第二聚合物,其中第一聚合物包含约70重量%至约90重量%的衍生自丙烯的单元和约10重量%至约30重量%的衍生自乙烯和/ 或C 4 -C 10α-烯烃,并且第二聚合物包含衍生自丙烯的约88重量%至约98重量%的单元和衍生自乙烯和/或C 4 -C 10的约2重量%至约12重量%的单元 α-烯烃。 弹性体聚合物共混物的进一步特征在于具有两种或更多种以下性能:总丙烯含量为约75重量%至约90重量%,熔点为约110℃至约145℃, 维卡软化点大于约45℃,通过根据ASTM D412的应力应变测试确定的小于约500psi(3447kPa)的300%应变下的拉伸应力或丸粒分离的平均最大力 在加速储存稳定性试验中小于约10N。 聚合物共混物在双重反应器方法中制备,其中使用不同的催化剂体系制备第一聚合物和第二聚合物。

    Monomer/solvent separation and recycle process for propylene containing polymers
    34.
    发明申请
    Monomer/solvent separation and recycle process for propylene containing polymers 有权
    含丙烯聚合物的单体/溶剂分离和循环过程

    公开(公告)号:US20090259005A1

    公开(公告)日:2009-10-15

    申请号:US12384401

    申请日:2009-04-03

    IPC分类号: C08F2/04

    摘要: Monomer/solvent separation and recycle processes for continuous supercritical, solution and advanced solution polymerization processes for propylene-containing polymers and their blends are provided. The advantageous monomer/solvent separation and recycle process includes heating a polymer-lean recycle stream coming from a gravimetric separator positioned downstream of the reactor to form a heated polymer-lean recycle stream, and subsequently combining the heated polymer-lean recycle stream with the one or more homogenous reactor effluent streams to form a heated reactor effluent mixed stream. The heated reactor effluent mixed stream may then be passed through a pressure let-down valve followed and a gravimetric separator, such as to provide for reduced fouling propensity of the polymer-rich phase and sufficient heating of the polymer-rich phase to be able to pass through the remainder of the processing steps to form a propylene based polymer product without additional heat.

    摘要翻译: 提供了用于含丙烯聚合物及其共混物的连续超临界,溶液和高级溶液聚合方法的单体/溶剂分离和再循环方法。 有利的单体/溶剂分离和再循环方法包括加热来自位于反应器下游的重力分离器的贫聚合物再循环流,形成加热的贫聚合物循环流,随后将加热的贫聚合物再循环流与 或更均匀的反应器流出物流以形成加热的反应器流出物混合流。 然后,加热的反应器流出物混合流可以通过压力降压阀和重量分离器,例如提供富聚合物相的减少的结垢倾向,并充分加热富含聚合物的相以能够 通过其余的处理步骤以形成无需额外热量的丙烯基聚合物产品。

    Process for fluid phase in-line blending of polymers
    36.
    发明申请
    Process for fluid phase in-line blending of polymers 有权
    流体相在线共混聚合物的方法

    公开(公告)号:US20080234443A1

    公开(公告)日:2008-09-25

    申请号:US12002509

    申请日:2007-12-17

    IPC分类号: C08F2/01 C08L23/02

    摘要: A process for fluid phase in-line blending of polymers. The process includes providing two or more reactor trains configured in parallel and a separator for product blending and product-feed separation; contacting in at least one of the parallel reactor trains olefin monomers having three or more carbon atoms, catalyst systems, optional comonomers, optional scavengers, and optional inert diluents or inert 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 in each parallel reactor train; combining the reactor effluent from each parallel reactor; passing the combined reactor effluent 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 polymer-rich blend phase and a monomer-rich phase; and separating the monomer-rich phase from the polymer-rich blend phase. The separated monomer-rich phase is recycled to the polymerization reactor bank. The polymer-rich blend phase is conveyed to a downstream finishing stage for further monomer stripping, drying and/or pelletizing to form a polymer product blend.

    摘要翻译: 流体相在线共混聚合物的方法。 该方法包括提供两个或更多个平行配置的反应器列和用于产物混合和产物进料分离的分离器; 在高于聚合物的固体 - 流体相转变温度的温度下,在至少一个平行的反应器列中具有三个或更多个碳原子的烯烃单体,催化剂体系,任选的共聚单体,任选的清除剂和任选的惰性稀释剂或惰性溶剂接触 系统,低于聚合体系浊点压力10MPa以下的压力小于1500MPa; 在每个平行的反应器列中形成包含均相流体相聚合物 - 单体混合物的反应器流出物; 将来自每个平行反应器的反应器流出物混合; 将合并的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,以形成包括富含聚合物的共混相和富单体相的流体 - 流体两相系统; 并从富含聚合物的混合相中分离富含单体的相。 将分离的富单体相再循环至聚合反应器组。 将富含聚合物的共混相输送到下游整理阶段以进一步进行单体汽提,干燥和/或造粒以形成聚合物产物共混物。

    PROCEDURE FOR THE SPECIFIC ISOLATION OF TOTAL DNA CONTENT OF BACTERIAL GERMS AND A KIT FOR THIS PURPOSE
    38.
    发明申请
    PROCEDURE FOR THE SPECIFIC ISOLATION OF TOTAL DNA CONTENT OF BACTERIAL GERMS AND A KIT FOR THIS PURPOSE 有权
    特殊分离细菌菌种总DNA含量的程序和本目的试剂盒

    公开(公告)号:US20130109027A1

    公开(公告)日:2013-05-02

    申请号:US13808139

    申请日:2010-07-07

    IPC分类号: C12Q1/68

    摘要: Procedure for the specific isolation of total DNA content of bacterial germs of different samples, in the course of which the cells are lysated, the DNA content of the lysate is bound selectively, it is washed and then the desalinated linear polymer nucleic acid is eluted from the binding surface in an aqueous solution. Before cell lysis the nonviable bacterial cells are separated from the viable cells on the basis of their different cell surface physical-chemical characteristics, the viable cells of the sample are kept and then lysated using a mechanical and/or enzymatic, favourably lysozyme enzymatic method. After this exclusively double-stranded DNA deriving from the lysate of viable cells is bound on a —SiO2—TiO2- matrix containing chemically activated —OH and dodecylamine groups, and after washing it, the desalinated linear polymer nucleic acid is eluted in an aqueous solution.

    摘要翻译: 特异性分离不同样品的细菌细菌的总DNA含量的步骤,在细胞裂解过程中,裂解物的DNA含量选择性地结合,洗涤,然后脱盐的线性聚合物核酸从 在水溶液中的结合表面。 在细胞裂解之前,根据不同的细胞表面物理化学特性,将不可维护的细菌细胞从活细胞中分离出来,保存样品的活细胞,然后使用机械和/或酶促的溶菌酶酶法进行裂解。 之后,将衍生自活细胞裂解物的纯双链DNA结合在含有化学活化的-OH和十二烷基胺基团的-SiO 2 -TiO 2基质上,并且在洗涤之后,脱盐的线性聚合物核酸在水溶液 。

    POLYPROPYLENE ETHYLENE-PROPYLENE COPOLYMER BLENDS AND IN-LINE PROCESS TO PRODUCE THEM
    40.
    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。