专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4739015A Process for producing propylene block copolymer 失效
标题翻译：制备丙烯嵌段共聚物的方法
公开(公告)号：US4739015A
公开(公告)日：1988-04-19
申请号：US775368
申请日：1985-09-12
申请人： Akinori Toyota , Norio Kashiwa , Haruyuki Koda , Matsunao Maeda
发明人： Akinori Toyota , Norio Kashiwa , Haruyuki Koda , Matsunao Maeda
IPC分类号： C08F4/28 , C08F297/08
CPC分类号： C08F297/08
摘要： A process for producing a propylene block copolymer in the presence of a highly stereospecific olefin polymerization catalyst which comprises producing a crystalline polymer or copolymer of propylene in a first stage and random-copolymerizing propylene and another alpha-olefin in a mole ratio of from 10:90 to 90:10 in the presence of the propylene polymer or copolymer in a second stage; wherein in the random copolymerization, 0.0001 to 0.5 mole, per gram atom of aluminum in the catalyst, of an oxygen-containing compound being gaseous in a standard condition or 0.001 to 1 mole, per gram atom of aluminum in the catalyst, of an active hydrogen-containing compound being liquid or solid in a standard condition is fed into the random-copolymerization reaction system.
摘要翻译：一种在高立体特异性烯烃聚合催化剂存在下制备丙烯嵌段共聚物的方法，该方法包括在第一阶段中制备丙烯的结晶聚合物或共聚物，以及摩尔比为10:1的丙烯与另一种α-烯烃的无规共聚。在第二阶段的丙烯聚合物或共聚物的存在下为90-90:10; 其中在无规共聚中，催化剂中每克原子铝为0.0001至0.5摩尔，在标准条件下为气态的含氧化合物或每克原子铝中的0.001至1摩尔的催化剂中的活性物质在标准条件下为液体或固体的含氢化合物进料到无规共聚反应体系中。

2. 发明授权

US4578879A Fluidizing apparatus 失效
标题翻译：流化设备
公开(公告)号：US4578879A
公开(公告)日：1986-04-01
申请号：US664535
申请日：1984-10-25
申请人： Takeshi Yokoyama , Haruyuki Koda , Matsunao Maeda , Keiji Kobayashi , Masafumi Aoba , Masaaki Miwa
发明人： Takeshi Yokoyama , Haruyuki Koda , Matsunao Maeda , Keiji Kobayashi , Masafumi Aoba , Masaaki Miwa
IPC分类号： B01J8/24 , B01J8/44 , B01J12/02 , C08F2/34 , C08F10/00 , F26B17/10
CPC分类号： B01J8/1872 , B01J12/02 , B01J8/44 , C08F10/00 , C08F2/34 , B01J2208/00256 , B01J2208/00274
摘要： An improved fluidizing apparatus includes a gas distribution plate which is supported by support means located below the level of the gas distribution plate. The support means comprises beam members extending across the interior of the vessel and a number of rods standing upright on the beam members, with the gas distribution plate placed on the uppermost ends of the rods. The support means can also include annular members made integral with the beam members and/or a projection or projections projecting inward from the inner wall surface of the vessel. A number of rods can stand upright on the annular members.
摘要翻译：一种改进的流化装置包括一个气体分配板，该气体分配板由位于气体分配板的水平面下方的支撑装置支撑。支撑装置包括横跨容器内部延伸的梁构件和竖立在梁构件上的多个杆，气体分配板放置在杆的最上端。支撑装置还可以包括与梁构件一体形成的环形构件和/或从容器的内壁表面向内突出的突起或突起。许多杆可以直立在环形构件上。

3. 发明授权

US4692501A Process for continuous multi-stage polymerization of olefins 失效
标题翻译：烯烃连续多级聚合方法
公开(公告)号：US4692501A
公开(公告)日：1987-09-08
申请号：US761330
申请日：1985-07-31
申请人： Hideo Mineshima , Haruyuki Koda , Ryoichi Yamamoto
发明人： Hideo Mineshima , Haruyuki Koda , Ryoichi Yamamoto
IPC分类号： C08F2/00 , C08F2/14 , C08F6/00 , C08F6/06 , C08F10/00 , C08F110/06 , C08F6/24
CPC分类号： C08F10/00 , C08F110/06 , C08F210/06 , Y10S526/901
摘要： In a process for producing an olefin polymer which comprises continuously polymerizing an olefin in the presence of a catalyst composed of a transition metal compound component and an organometallic compound component in at least two independent polymerization zones connected in series by a pipeline while feeding the olefin and the catalyst into an upstream zone of polymerization and withdrawing the resulting polymer from a downstream zone of polymerization; the improvement wherein(1) the polymerization in the upstream polymerization zone is carried out in a liquid medium under conditions for slurry polymerization,(2) the solid polymer-containing slurry discharged from the upstream polymerization zone is fed into a liquid medium exchanging zone through an upper feed opening (A) in its upper portion, said liquid medium exchanging zone being provided between the upstream polymerization zone and the downstream polymerization zone and connected to these zones by pipelines, and an additional supply of the liquid medium is fed into said exchanging zone through a lower feed opening (B) in the lower portion of said exchanging zone,(3) the discharge flow from an upper discharge opening (C) in the exchanging zone above the upper feed opening (A) is recycled to the upstream polymerization zone, and the discharge flow from a bottom discharge opening (D) in the exchanging zone below the lower feed opening (B) is fed into the downstream polymerization zone, and(4) the amount of the liquid medium in the discharge stream from the bottom discharge opening (D) is adjusted to 1 to 8 times the volume of the additional liquid medium fed from the lower feed opening (B), and thus the precipitated solid polymer is discharged from the bottom discharge opening (D) while it is concurrent with, and in contact with, the liquid medium from the lower feed opening (B).
摘要翻译：在制备烯烃聚合物的方法中，所述烯烃聚合物包括在由过渡金属化合物组分和有机金属化合物组分组成的催化剂的存在下在至少两个独立的聚合区域中连续聚合烯烃，所述至少两个独立的聚合区域通过管道串联连接，同时进料所述烯烃，催化剂进入聚合的上游区域并从下游聚合区域抽出所得聚合物; 其改进在于（1）上游聚合区中的聚合在液体介质中在淤浆聚合条件下进行，（2）从上游聚合区排出的含固体聚合物的浆料通过所述液体介质交换区设置在所述上游聚合区和所述下游聚合区之间，并且通过管道连接到所述区，并且所述液体介质的附加供应被供给到所述交换区通过所述交换区的下部的下供给口（B），（3）从上供给口（A）上方的交换区中的上排出口（C）的排出流被再循环至上游聚合并且从下部进料口（B）下方的交换区域中的底部排出口（D）的排出流被供给到下游聚合 n区域，和（4）来自底部排出口（D）的排出流中的液体介质的量被调节为从下部供给口（B）供给的附加液体介质的体积的1至8倍，以及因此沉淀的固体聚合物从底部排出口（D）排出，同时与来自下部进料口（B）的液体介质同时接触。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式