公开(公告)号：EP2067799A1

公开(公告)日：2009-06-10

申请号：EP07254717.7

申请日：2007-12-05

申请人： Borealis Technology OY

发明人： Eriksson Virginie ,  Vahteri Markku ,  Väänänen Marjo ,  Garoff Thomas ,  Hätönen Jari ,  Rekonen Petri ,  Fredriksen Siw Bodil ,  Nord-Varhaug, Katrin ,  Seim, marit ,  Nilsen, Jorunn ,  Helland, Irene

IPC分类号： C08F210/16 ,  C08F2/00 ,  C08F297/08

CPC分类号： C08L23/0815 ,  C08F210/16 ,  C08F297/08 ,  C08F297/083 ,  C08L53/00 ,  C08L2205/02 ,  C08F2/001 ,  C08L2666/06 ,  C08L2666/02 ,  C08F210/08 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/26 ,  C08F2500/07

摘要： A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m 3 , and containing at least one α-olefin comonomer in addition to ethylene comprising:
(A) 30 to 60 wt% of a lower molecular weight component being an ethylene homopolymer or a copolymer of ethylene and at least one α-olefin;
and
(B) 70 to 40 wt% of a higher molecular weight component being a copolymer of ethylene and at least one α-olefin, said α-olefin being the same or different from any α-olefin used in component (A) but with the proviso that both components (A) and (B) are not polymers of ethylene and butene alone;

wherein the multimodal LLDPE has a dart drop of at least 700 g;
and wherein components (A) and (B) are obtainable using a Ziegler-Natta catalyst.

摘要翻译： 一种多峰线型低密度聚乙烯聚合物，其最终密度为900至940kg / m 3，并且除乙烯外还包含至少一种α-烯烃共聚单体，其包含：（A）30至60重量％的较低分子量组分为 乙烯均聚物或乙烯与至少一种α-烯烃的共聚物; 和（B）70至40重量％的较高分子量组分是乙烯和至少一种α-烯烃的共聚物，所述的α-烯烃与组分（A）中使用的任何α-烯烃相同或不同，但与 条件是组分（A）和（B）都不是单独的乙烯和丁烯的聚合物; 其中所述多峰LLDPE具有至少700g的滴滴; 并且其中组分（A）和（B）可以使用齐格勒 - 纳塔催化剂获得。

公开(公告)号：EP2072589A1

公开(公告)日：2009-06-24

申请号：EP07024739.0

申请日：2007-12-20

申请人： Borealis Technology Oy

发明人： Anker, Martin ,  Fredriksen, Siw Bodil ,  Bentzrod, Pal Christian ,  Bäckman, Mats ,  Leiden, Leif ,  Vahteri, Markku ,  Rekonen Petri

IPC分类号： C09D123/06 ,  C08L23/08

CPC分类号： C09D123/06 ,  C08L23/0815 ,  C08L2205/025 ,  C08L2308/00 ,  C08L2666/06

摘要： The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight of from 70000 g/mol to 250000 g/mol, the ratio of the weight average molecular weight to the number average molecular weight, Mw/Mn, of from 15 to 50, a melt index MFR 2 of from 0.05 g/10 min to 5 g/10 min, a melt index MFR 5 of from 0.5 to 10 g/10 min and a density of from 930 kg/m 3 to 955 kg/m 3 . Further, the multimodal ethylene copolymer comprises the multimodal ethylene copolymer comprises from 49 to 59 % based on the weight of the multimodal ethylene copolymer a low molecular weight ethylene homopolymer component, said low molecular weight ethylene homopolymer having a weight average molecular weight of from 5000 g/mol to 70000 g/mol; and from 51 to 41 % based on the weight of the multimodal ethylene copolymer a high molecular weight ethylene copolymer component, said high molecular weight ethylene copolymer having a weight average molecular weight of from 100000 g/mol to 700000 g/mol. The pipes can be coated with high throughput and good production economy. The coatings have good mechanical properties.

摘要翻译： 本发明与具有多峰聚乙烯层的涂层管的交易。 所述多峰乙烯共聚物是与一种或多种具有4至10个碳原子的多种α-烯烃共聚单体的乙烯的共聚物，并且具有70,000克/摩尔的重均分子量至250,000克/摩尔，重均分子量之比 重量的数均分子量，Mw / Mn为从15至50的，熔体指数MFR 2为0.05克/ 10分钟至5克/ 10分钟，熔体指数MFR 5为0.5至10克/ 10 分钟的为930kg / m 3的955千克/米3的密度。 另外，所述多峰乙烯共聚物包含所述多峰乙烯共聚物基于所述多峰乙烯的重量49至59％包含共聚物A的低分子量乙烯均聚物组分，所述为5000克具有的重均分子量的低分子量乙烯均聚物 /摩尔70000克/摩尔; 以及基于所述多峰乙烯共聚物的高分子量乙烯共聚物组分的重量计51至41％，所述具有的重均分子量的高分子量乙烯共聚物为100,000克/摩尔至700,000克/摩尔。 该管道可涂有高吞吐量和良好的生产经济性。 该涂料具有良好的机械性能。