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1. 发明申请

US20140100336A1 Fractional Melt Index Polyethylene Composition and Films Made Therefrom 有权
标题翻译：分数熔体指数聚乙烯组成和薄膜
公开(公告)号：US20140100336A1
公开(公告)日：2014-04-10
申请号：US13808724
申请日：2012-06-08
申请人： Lawrence J. Effler, JR. , Cornelis F.J. Den Doelder , nl Demirors , Jian Wang
发明人： Lawrence J. Effler, JR. , Cornelis F.J. Den Doelder , nl Demirors , Jian Wang
IPC分类号： C08L23/06
CPC分类号： C08L23/06 , C08L2205/02 , C08L2314/02
摘要： A reactor blend polyethylene composition comprising: from 35 to 70 percent by weight of a first polyethylene component; and a second polyethylene component; wherein the polyethylene resin has a melt index I2 of less than 1 dg/min and greater than or equal to 0.25 dg/min and exhibits a V0.1/V100 of greater than or equal to 9; and wherein the first and second polyethylene components are produced in continuous dual solution polymerization reactors, wherein the second polyethylene component is produced in the presence of the first polyethylene component and wherein a Ziegler-Natta catalyst is present in each of the first and second polymerization reactors is provided. Also provided are methods for producing the polyethylene resin and films made therefrom.
摘要翻译：一种反应器共混聚乙烯组合物，其包含：35至70重量％的第一聚乙烯组分; 和第二聚乙烯组分; 其中所述聚乙烯树脂具有小于1dg / min且大于或等于0.25dg / min的熔体指数I2，并且表现出大于或等于9的V0.1 / V100; 并且其中所述第一和第二聚乙烯组分在连续双溶液聚合反应器中制备，其中所述第二聚乙烯组分在第一聚乙烯组分存在下制备，并且其中齐格勒 - 纳塔催化剂存在于第一和第二聚合反应器被提供。还提供了制备聚乙烯树脂的方法和由其制成的膜。

2. 发明申请

US20130197168A1 Polymerization Process to Make Low Density Polyethylene 有权
标题翻译：制备低密度聚乙烯的聚合方法
公开(公告)号：US20130197168A1
公开(公告)日：2013-08-01
申请号：US13876292
申请日：2011-09-21
申请人： Otto J. Berbee , Cornelis F.J. den Doelder , Cornelis J. Hosman
发明人： Otto J. Berbee , Cornelis F.J. den Doelder , Cornelis J. Hosman
IPC分类号： C08F10/02
CPC分类号： C08F10/02 , C08F110/02 , C08F210/02 , C08F2/38 , C08F2/001 , C08F2500/11 , C08F2500/12 , C08F218/08 , C08F4/34
摘要： A high pressure polymerization process to form an ethylene-based polymer comprises the steps of: A. Injecting a first feed comprising a chain transfer agent system (CTA system) and ethylene into a first autoclave reactor zone operating at polymerization conditions to produce a first zone reaction product, the CTA system of the first reactor zone having a transfer activity Z1; and B. (1) Transferring at least part of the first zone reaction product to a second reactor zone selected from a second autoclave reactor zone or a tubular reactor zone and operating at polymerization conditions, and, optionally, (2) freshly injecting, a second feed into the second reactor zone to produce a second zone reaction product, with the proviso that at least one of the first reactor zone product and the freshly injected feed comprises a CTA system with a transfer activity of Z2; and with the proviso that the ratio of Z1:Z2 is greater than 1.
摘要翻译：形成乙烯基聚合物的高压聚合方法包括以下步骤：A.将包含链转移剂体系（CTA体系）和乙烯的第一种进料注入到在聚合条件下操作的第一高压釜反应器区域中以产生第一区反应产物，具有转移活性Z1的第一反应器区域的CTA体系; （1）将至少部分第一区反应产物转移到选自第二高压釜反应器区或管式反应器区并在聚合条件下操作的第二反应器区，以及任选地（2）新鲜地注入，第二进料到第二反应器区以产生第二区反应产物，条件是第一反应器区产物和新注入的进料中的至少一个包含具有Z 2的转移活性的CTA体系; 并且条件是Z1:Z2的比率大于1。

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