公开(公告)号：US06645588B1

公开(公告)日：2003-11-11

申请号：US09624279

申请日：2000-07-24

申请人： Leif Leiden ,  Markku Asumalahti ,  Jari Aarila ,  Laila Rogestedt ,  Hans-Bertil Martinsson ,  Bengt Hagstrom ,  Aimo Sahila

发明人： Leif Leiden ,  Markku Asumalahti ,  Jari Aarila ,  Laila Rogestedt ,  Hans-Bertil Martinsson ,  Bengt Hagstrom ,  Aimo Sahila

IPC分类号： F16L9147

CPC分类号： H01B3/44 ,  C08F210/16 ,  C08L23/04 ,  C08L23/0815 ,  C08L2205/02 ,  G02B6/443 ,  Y10T428/1355 ,  Y10T428/1359 ,  C08F2/001 ,  C08L2666/04 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/13 ,  C08F2500/07

摘要： Conventional coating compositions have the disadvantage of being insufficiently coatable and having an unsatisfactory environmental stress cracking resistance. Now a coating composition has been found which has both good coating processability and environmental stress cracking resistance. It comprises a multimodal ethylene polymer, which contains from 80 to 100% by weight of ethylene repeating units and from 0 to 20% by weight of C3-C10 &agr;-olefin repeating units, has a density of between 0.915 g/cm3 and 0.955 g/cm3, and is a blend of at least a first ethylene polymer having a first average molecular weight and a first molecular weight distribution and a second ethylene polymer having a second average molecular weight, which is higher than said first average molecular weight, and a second molecular weight distribution, said blend having a third average molecular weight and a third molecular weight distribution.

摘要翻译： 常规涂料组合物的缺点是可涂覆性不足，并且具有不令人满意的耐环境应力开裂性。 现在已经发现涂料组合物具有良好的涂覆加工性和耐环境应力开裂性。 其包含多峰乙烯聚合物，其含有80至100重量％的乙烯重复单元和0至20重量％的C 3 -C 10α-烯烃重复单元，其密度为0.915g / cm 3 和0.955g / cm 3，并且是至少具有第一平均分子量和第一分子量分布的第一乙烯聚合物和具有第二平均分子量的第二乙烯聚合物的共混物，其具有高于所述第一 平均分子量和第二分子量分布，所述共混物具有第三平均分子量和第三分子量分布。

公开(公告)号：US06329054B1

公开(公告)日：2001-12-11

申请号：US08983273

申请日：1998-05-15

申请人： Laila Rogestedt ,  Hans-Bertil Martinsson ,  Markku Asumalahti ,  Jari {umlaut over (Aa)}rilä

发明人： Laila Rogestedt ,  Hans-Bertil Martinsson ,  Markku Asumalahti ,  Jari {umlaut over (Aa)}rilä

IPC分类号： C08L2304

CPC分类号： H01B3/44 ,  C08F210/16 ,  C08L23/04 ,  C08L23/0815 ,  C08L2205/02 ,  G02B6/443 ,  Y10T428/2933 ,  Y10T428/2938 ,  Y10T428/294 ,  Y10T428/2947 ,  C08F2/001 ,  C08L2666/04 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/13 ,  C08F2500/07

摘要： A cable-sheating composition and its use as outer sheath for a power cable or a communication cable are disclosed. The cable-sheating composition is a multimodal, preferably bimodal, mixture of olefin polymers, preferable ethylene plastics, having a density of about 0.915-0.955 g/cm3 and a melt flow rate of about 0.1-0.3 g/10 min, said olefin polymer mixture comprising at least a first and a second olefin polymer, of which the first has a density and a melt flow rate selected from (a) about 0.930-0.975 g/cm3 and about 50-2000 g/10 min and (b) about 0.88-0.93 g/cm3 and about 0.1-0.8 g/10 min. Preferably, the olefin polymer mixture has been obtained by coordination-catalyzed polymerization of at least one &agr;-olefin in several stages, preferably two stages consisting of a loop reactor/a gas-phase reactor or a gas-phase reactor/a gas-phase reactor, through polymerization or copolymerization of ethylene in the first stage and copolymerization of ethylene with butene, 4-methyl-1-pentene, 1-hexene or 1-octene in the second stage.

摘要翻译： 公开了一种电缆护套组合物及其用作电力电缆或通信电缆的外护套的用途。 电缆护套组合物是密度为约0.915-0.955g / cm 3，熔体流动速率为约0.1-0.3g / 10min的烯烃聚合物，优选的乙烯塑料的多峰，优选双峰混合物，所述烯烃聚合物 包含至少第一和第二烯烃聚合物的混合物，其中第一种烯烃聚合物的密度和熔体流动速率选自（a）约0.930-0.975g / cm 3和约50-2000g / 10min，（b）约 0.88-0.93g / cm 3和约0.1-0.8g / 10min。 优选地，烯烃聚合物混合物是通过在几个阶段中配位催化聚合至少一种α-烯烃获得的，优选由环流反应器/气相反应器或气相反应器/气相 反应器，在第二阶段通过乙烯的聚合或共聚合，乙烯与丁烯的共聚合，4-甲基-1-戊烯，1-己烯或1-辛烯的反应。

公开(公告)号：US06878784B1

公开(公告)日：2005-04-12

申请号：US09720998

申请日：1999-07-01

申请人： Markku Asumalahti ,  Jari Äärilää{umlaut over ( )} ,  Ari Palmroos ,  Mats Bäckman ,  Anette Nilsson ,  Magnus Palmlöf

发明人： Markku Asumalahti ,  Jari Äärilää{umlaut over ( )} ,  Ari Palmroos ,  Mats Bäckman ,  Anette Nilsson ,  Magnus Palmlöf

IPC分类号： C08F297/08 ,  C08L23/04 ,  C08L23/08 ,  F16L9/12 ,  C08F2/00

CPC分类号： C08L23/0815 ,  C08L2205/02 ,  Y10S526/901 ,  Y10S526/905 ,  Y10T428/139 ,  Y10T428/1393 ,  Y10T428/1397 ,  C08L2666/04

摘要： A multimodal polymer composition for pipes is disclosed. The polymer is a multimodal polyethylene with a density of 0.930-0.965 g/cm3, an MFR5 of 0.2-1.2 g/10 min, an Mn of 8000-15000, an Mw of 180-330×103, and an Mw/Mn of 20-35, said multimodal polyethylene comprising a low molecular weight (LMW) ethylene homopolymer fraction and a high molecular weight (HMW) ethylene copolymer fraction, said HMW fraction having a lower molecular weight limit of 3500, and a weight ratio of the LMW fraction to the HMW fraction of (35-55):(65:45).

摘要翻译： 公开了一种用于管道的多峰聚合物组合物。 聚合物是密度为0.930-0.965g / cm 3，MFR5为0.2-1.2g / 10min，Mn为8000-15000，Mw为180-330×10 3的多峰聚乙烯，和 Mw / Mn为20-35，所述多峰聚乙烯包含低分子量（LMW）乙烯均聚物部分和高分子量（HMW）乙烯共聚物部分，所述HMW部分具有较低的分子量限度为3500，重量比 （35-55）:( 65:45）的HMW分数。