Film with high impact strength
    3.
    发明申请
    Film with high impact strength 有权
    高冲击强度的胶片

    公开(公告)号:US20050119407A1

    公开(公告)日:2005-06-02

    申请号:US10503611

    申请日:2003-02-03

    摘要: A film with a broad molecular weight distribution, excellent impact strength and a high dart drop value or moderate dart drop value accompanied by good optical property consisting of a bimodal terpolymer comprising a low molecular weight homopolymer of ethylene and a high molecular weight terpolymer of ethylene, 1-butene and a C6 to C12 alpha-olefin, or a bimodal terpolymer comprising a low mo-lecular weight polymer which is a binary copolymer of ethylene and a C4 to C12 alpha-olefin and a high molecular weight polymer which is either a binary copolymer of ethylene and 1-butene, if the low molecular weight polymer is a binary co-polymer of ethylene and a C6 to C12 alpha-olefin, or a terpolymer of ethylene, 1-butene and a C6 to C12 alpha-olefin.

    摘要翻译: 具有宽分子量分布,优异的冲击强度和高飞镖降落值或中等飞镖降落值的薄膜,伴随着良好的光学性能,由包含乙烯的低分子量均聚物和乙烯的高分子量三元共聚物的双峰三元共聚物组成, 1-丁烯和C 6至C 12α-烯烃,或双峰三元共聚物,其包含低级单体重量聚合物,其是乙烯和C 4至C 12α-烯烃的二元共聚物和高分子量聚合物,其为二元 乙烯和1-丁烯的共聚物,如果低分子量聚合物是乙烯和C 6 -C 12α-烯烃的二元共聚物,或乙烯,1-丁烯和C 6 -C 12α-烯烃的三元共聚物。

    Film with high impact strength
    4.
    发明授权
    Film with high impact strength 有权
    高冲击强度的胶片

    公开(公告)号:US07524897B2

    公开(公告)日:2009-04-28

    申请号:US10503611

    申请日:2003-02-03

    IPC分类号: C08L23/08 C08F297/08

    摘要: A film with a broad molecular weight distribution, excellent impact strength and a high dart drop value or moderate dart drop value accompanied by good optical property consisting of a bimodal terpolymer comprising a low molecular weight homopolymer of ethylene and a high molecular weight terpolymer of ethylene, 1-butene and a C6 to C12 alpha-olefin, or a bimodal terpolymer comprising a low mo-lecular weight polymer which is a binary copolymer of ethylene and a C4 to C12 alpha-olefin and a high molecular weight polymer which is either a binary copolymer of ethylene and 1-butene, if the low molecular weight polymer is a binary co-polymer of ethylene and a C6 to C12 alpha-olefin, or a terpolymer of ethylene, 1 -butene and a C6 to C12 alpha-olefin.

    摘要翻译: 具有宽分子量分布,优异的冲击强度和高飞镖降落值或中等飞镖降落值的薄膜,伴随着良好的光学性能,由包含乙烯的低分子量均聚物和乙烯的高分子量三元共聚物的双峰三元共聚物组成, 1-丁烯和C 6至C 12α-烯烃,或双峰三元共聚物,其包含低级单体重量聚合物,其是乙烯和C 4至C 12α-烯烃的二元共聚物和高分子量聚合物,其为二元 乙烯和1-丁烯的共聚物,如果低分子量聚合物是乙烯和C 6 -C 12α-烯烃的二元共聚物,或乙烯,1-丁烯和C 6 -C 12α-烯烃的三元共聚物。

    Multilayered polymer films and process for the preparation thereof
    5.
    发明授权
    Multilayered polymer films and process for the preparation thereof 失效
    多层聚合物膜及其制备方法

    公开(公告)号:US06333086B1

    公开(公告)日:2001-12-25

    申请号:US08535259

    申请日:1996-01-29

    IPC分类号: B29D2200

    摘要: The present invention concerns a multilayered polymer film structure, which comprises at least one first layer (1) containing a thermoplastic polymer and at least one second layer (2), arranged adjacent to said first layer, containing a liquid crystalline polymer. According to the invention, the second layer (2) consists essentially of a compounded polymer blend formed by the liquid crystalline polymer and a thermoplastic polymer, the liquid crystalline polymer of the second layer forms a continuous phase, and the first and the second layers (1, 2) contain the same thermoplastic polymer. The oxygen transmission rate of the second layer is less than about 150 cm3/(m2·d·bar), determined according to the standard ASTM D 3985-81, and the water vapour transmission rate of the integral film structure is less than 10 g/(m2·24·h) at RH 80% 23° C., determined according to ASTM F 1249-90. The present structure can be used as a barrier layer in packages.

    摘要翻译: 本发明涉及一种多层聚合物膜结构,其包括含有热塑性聚合物的至少一个第一层(1)和邻近所述第一层设置的包含液晶聚合物的至少一个第二层(2)。 根据本发明,第二层(2)基本上由由液晶聚合物和热塑性聚合物形成的复合聚合物共混物组成,第二层的液晶聚合物形成连续相,并且第一和第二层( 1,2)含有相同的热塑性聚合物。 根据标准ASTM D 3985-81测定,第二层的氧气透过率小于约150cm 3 /(m2.d.bar),整体膜结构的水蒸汽透过率小于10g /(m2.24.h)在RH80%23℃下,根据ASTM F 1249-90测定。 本结构可用作封装中的阻挡层。

    Polymer composition for pipes
    6.
    发明授权
    Polymer composition for pipes 有权
    管道聚合物组成

    公开(公告)号:US06441096B1

    公开(公告)日:2002-08-27

    申请号:US09832227

    申请日:2001-04-10

    IPC分类号: C08L2300

    摘要: A multimodal polymer composition for pipes is disclosed as well as a pipes made thereof. The polymer is a multimodal polyethylene with a density of 0.930-0.965 g/cm3, and a viscosity at a shear stress of 747 Pa (&eegr;747 Pa) of at least 650 Pa.s, 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 weight ratio of the LMW fraction to the HMW fraction of (35-55):(65-45). Preferably, the multimodal polyethylene has a viscosity at a shear stress of 2.7 kPa (&eegr;2.7 kPa) of 260-450 kPa.s; and a shear thinning index (SHI) defined as the ratio of the viscosities at shear stresses of 2.7 and 210 kPa, respectively, of SHI27/210=50-150, and a storage modulus (G′) at a loss modulus (G″) of 5 kPa, of G′5 kPa≧3000 Pa. The pipe is made of the multimodal polymer composition and withstands a stress of 8.0 MPa gauge during 50 years at 20° C. (MRS8.0). Preferably, the pipe has a rapid crack propagation (RCP) S4-value, determined according to ISO 13477:1997(E), of −5° C. or lower and a slow crack propagation resistance, determined according to ISO 13479:1997, of at least 500 hrs at 4.6 MPa/80° C. The polymer composition affords good non-sagging properties to pipe made thereof.

    摘要翻译: 公开了一种用于管道的多峰聚合物组合物以及由其制成的管。 聚合物是密度为0.930-0.965g / cm 3的多峰聚乙烯,剪切应力为747Pa(eta747Pa)下的粘度为至少650Pa.s,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LMW部分与HMW部分的重量比(35-55):(65-45)。 优选地,多峰聚乙烯在剪切应力为2.7kPa(eta2.7kPa)下的粘度为260-450kPa·s; 和剪切稀化指数(SHI),其分别定义为SHI27 / 210 = 50-150的剪切应力分别为2.7和210kPa的粘度比,以及损耗模量(G')下的储能模量(G'), ')为5kPa,G'5kPa> = 3000Pa。该管由多峰聚合物组合物制成,并且在20℃下在50年内耐受8.0MPa表压的应力(MRS8.0)。 优选地,管具有根据ISO 13477:1997(E)确定的-5℃或更低的快速裂纹扩展(RCP)S4值,并且根据ISO 13479:1997确定的缓慢的抗裂纹扩展性, 在4.6MPa / 80℃下至少500小时。聚合物组合物为其制成的管制得到良好的不下垂性能。