METHOD AND APPARATUS FOR MANAGING VOLATILE ORGANIC CONTENT IN POLYOLEFIN
    62.
    发明申请
    METHOD AND APPARATUS FOR MANAGING VOLATILE ORGANIC CONTENT IN POLYOLEFIN 有权
    管理挥发性有机物含量的方法和装置

    公开(公告)号:US20110201765A1

    公开(公告)日:2011-08-18

    申请号:US13093588

    申请日:2011-04-25

    申请人: Timothy O. Odi

    发明人: Timothy O. Odi

    IPC分类号: C08F2/00 C08F210/00 B01J19/00

    CPC分类号: C08F6/003

    摘要: The present invention relates generally to polyolefin production and to reducing volatile organic content (VOC) associated with the polyolefin. Techniques include the construction and implementation of a purge column model to calculate or estimate the VOC content in the polyolefin exiting the purge column. The techniques facilitate the design and operation of the polyolefin manufacturing process.

    摘要翻译: 本发明一般涉及聚烯烃生产和减少与聚烯烃相关的挥发性有机物含量(VOC)。 技术包括构造和实施吹扫柱模型,以计算或估计离开吹扫塔的聚烯烃中的VOC含量。 这些技术有助于聚烯烃制造过程的设计和操作。

    Process for producing prepolymerization catalyst for polymerization of olefin and process for producing olefin polymer
    63.
    发明授权
    Process for producing prepolymerization catalyst for polymerization of olefin and process for producing olefin polymer 有权
    制备烯烃聚合预聚合催化剂的方法和制备烯烃聚合物的方法

    公开(公告)号:US07999048B2

    公开(公告)日:2011-08-16

    申请号:US11882984

    申请日:2007-08-08

    申请人: Tomoaki Goto

    发明人: Tomoaki Goto

    摘要: There is provided a process for producing a prepolymerization catalyst for polymerization of an olefin, said process comprising the steps of feeding, to a polymerization reactor, an olefin and a solid catalyst component in which a catalyst component for polymerization of the olefin is carried on a fine particle support, and prepolymerizing the olefin in the presence of the solid catalyst component in the polymerization reactor, to thereby obtain the prepolymerization catalyst in which the olefin is prepolymerized on the solid catalyst component, characterized in that said solid catalyst component is pressure-fed to the polymerization reactor from a catalyst feeder connected to the polymerization reactor, and in that the inner pressure of the catalyst feeder at the start of the pressure-feeding is set at (Pr+0.0001) to (Pr+1) (MPa in unit) (in which Pr represents the inner pressure of the polymerization reactor (MPa in unit) at the start of the pressure-feeding).

    摘要翻译: 提供了一种制备烯烃聚合预聚合催化剂的方法,所述方法包括以下步骤:向聚合反应器中加入烯烃和固体催化剂组分,其中烯烃聚合用催化剂组分在 在聚合反应器中的固体催化剂组分存在下,预聚合烯烃,从而得到其中烯烃在固体催化剂组分上预聚合的预聚合催化剂,其特征在于所述固体催化剂组分被加压 从与聚合反应器连接的催化剂进料到聚合反应器,并且在加压开始时催化剂进料器的内部压力设定为(Pr + 0.0001)至(Pr + 1)(单位为MPa )(其中Pr表示压力开始时聚合反应器的内部压力(单位:MPa))。

    Microspheres
    65.
    发明授权
    Microspheres 有权
    微球

    公开(公告)号:US07956096B2

    公开(公告)日:2011-06-07

    申请号:US11704559

    申请日:2007-02-09

    摘要: The invention relates to thermally expandable thermoplastic microspheres comprising a polymer shell made from ethylenically unsaturated monomers encapsulating a propellant, said ethylenically unsaturated monomers comprising from 40 to 70 wt % of acrylonitrile, from 5 to 40 wt % of methacrylonitrile, from 10 to 50 wt % of monomers selected from the group consisting of esters of acrylic acid, esters of methacrylic acid and mixtures thereof, and said propellant comprising at least one of methane, ethane, propane, isobutane, n-butane and neo-pentane. The invention further relates to the production and use of the microspheres.

    摘要翻译: 本发明涉及包含由包封推进剂的烯键式不饱和单体制成的聚合物壳的热膨胀性热塑性微球,所述烯键式不饱和单体包含40至70重量%的丙烯腈,5至40重量%的甲基丙烯腈,10至50重量% 的选自丙烯酸酯,甲基丙烯酸酯及其混合物的单体,所述推进剂包含甲烷,乙烷,丙烷,异丁烷,正丁烷和新戊烷中的至少一种。 本发明还涉及微球的生产和使用。

    METHOD FOR TRANSITIONING BETWEEN INCOMPATIBLE OLEFIN POLYMERIZATION CATALYST SYSTEMS
    66.
    发明申请
    METHOD FOR TRANSITIONING BETWEEN INCOMPATIBLE OLEFIN POLYMERIZATION CATALYST SYSTEMS 有权
    不可溶性烯烃聚合催化剂体系的转移方法

    公开(公告)号:US20110130527A1

    公开(公告)日:2011-06-02

    申请号:US12737512

    申请日:2009-07-21

    摘要: A method for transitioning from a first to a second catalyst system for the olefin polymerization reaction in one reactor, wherein the first catalyst system is incompatible with the second catalyst system, is described. The method comprises the steps of a) discontinuing a first olefin polymerization reaction performed in the presence of the first catalyst system; and b) performing a second olefin polymerization reaction in the presence of the second catalyst system comprising catalyst components (A) and (B) producing, respectively, a first and a second polyolefin fraction, wherein the Mw of the first polyolefin fraction is less than the Mw of the second polyolefin fraction and the initial activity of catalyst component (A) exceeds the initial activity of catalyst component (B). Thanks to this method, there is no need to empty the reactor after the first olefin polymerization reaction, and the transitioning time needed to attain the desired quality of the polyolefin obtained in the second olefin polymerization reaction is sufficiently short to permit a quick and reliable change of production.

    摘要翻译: 描述了在一个反应​​器(其中第一催化剂体系与第二催化剂体系不相容的情况下)从用于烯烃聚合反应的第一催化剂体系转化为第二催化剂体系的方法。 该方法包括以下步骤:a)停止在第一催化剂体系存在下进行的第一烯烃聚合反应; 和b)在包含分别产生第一和第二聚烯烃部分的催化剂组分(A)和(B))的第二催化剂体系的存在下进行第二烯烃聚合反应,其中第一聚烯烃部分的Mw小于 第二聚烯烃级分的Mw和催化剂组分(A)的初始活性超过催化剂组分(B)的初始活性。 由于这种方法,在第一烯烃聚合反应之后不需要清空反应器,并且获得在第二烯烃聚合反应中获得的聚烯烃的期望质量所需的转变时间足够短以允许快速可靠的改变 的生产。

    METHOD OF USING AN UPPER DISCHARGE IN A FLUIDIZED BED REACTOR AND SYSTEM THEREOF
    68.
    发明申请
    METHOD OF USING AN UPPER DISCHARGE IN A FLUIDIZED BED REACTOR AND SYSTEM THEREOF 有权
    在流化床反应器中使用上部排放的方法及其系统

    公开(公告)号:US20110124826A1

    公开(公告)日:2011-05-26

    申请号:US12623060

    申请日:2009-11-20

    IPC分类号: C08F2/00 B01J8/08 C08F210/00

    摘要: A method according to one embodiment includes operating a reactor or providing a reactor after operation, wherein the reactor includes a bottom section, a bed section above the bottom section, a distributor plate between the bottom section and the bed section, an expanded section above the bed section, and an upper section above the bed section, wherein the bed section has a height H measured from the distributor plate to the expanded section; measuring a concentration of particulates in the upper section of the reactor to obtain a first determined level of particulates in the upper section; and discharging at least some of the particulates from the reactor at an upper discharge point located above 0.55H as measured vertically from the distributor plate based on the first determined level. Additional systems and methods are also provided.

    摘要翻译: 根据一个实施方案的方法包括在操作之后操作反应器或提供反应器,其中反应器包括底部部分,底部部分上方的床部分,底部部分和床部分之间的分配器板, 床部分和床部分上方的上部,其中床部分具有从分配器板到膨胀部分测量的高度H; 测量反应器上部的微粒浓度以获得上部第一确定的微粒水平; 以及基于所述第一确定水平从所述分配器板垂直测量,在位于高于0.55H的上排放点处从所述反应器排出至少一些所述颗粒。 还提供了附加的系统和方法。

    Backfixing of artificial turf stock material with hotmelts based on amorphous poly-α-olefins and/or modified amorphous poly-α-olefins
    70.
    发明授权
    Backfixing of artificial turf stock material with hotmelts based on amorphous poly-α-olefins and/or modified amorphous poly-α-olefins 有权
    基于无定形聚-α-烯烃和/或改性无定形聚-α-烯烃的热熔胶人造草坪材料的后缀

    公开(公告)号:US07935203B2

    公开(公告)日:2011-05-03

    申请号:US11917104

    申请日:2006-04-18

    摘要: Artificial turf stock materials useful for artificial turf stock backfixing, including: a hotmelt made of: a) from 5% to 100% by weight of at least one amorphous poly-α-olefin, b) from 0% to 100% by weight of at least one modified amorphous poly-α-olefin, c) from 0% to 40% by weight of at least one resin, d) from 5% to 15% by weight of at least one modified crystalline polypropylene, e) from 0% to 20% by weight of at least one crystalline polyolefin, f) from 0% to 80% by weight of fillers or pigments, g) from 0% to 20% by weight of at least one flame retardant, and h) from 0% to 20% by weight of at least one wax, where ribbon yarn of polyethylene, polypropene, polyester, polymide, or an interpolymer is bound together with the hotmelt in an artificial turf stock material.

    摘要翻译: 用于人造草皮回填的人造草皮原料,包括:由以下组成的热熔体:a)5重量%至100重量%的至少一种无定形聚-α-烯烃,b)0重量%至100重量% 至少一种改性无定形聚-α-烯烃,c)0-40%(重量)至少一种树脂,d)5%-15%重量的至少一种改性结晶聚丙烯,e)0% 至20重量%的至少一种结晶聚烯烃,f)0重量%至80重量%的填料或颜料,g)0重量%至20重量%的至少一种阻燃剂,和h)0重量% 至20重量%的至少一种蜡,其中聚乙烯,聚丙烯,聚酯,聚酰亚胺或互聚物的丝状纱线与热熔融物结合在人造草皮材料中。