中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

69 records (took 0.012 seconds)

    MULTIMODAL POLYETHYLENE COMPOSITION WITH HIGH PRESSURE RESISTANCE
    2.
    发明申请
    MULTIMODAL POLYETHYLENE COMPOSITION WITH HIGH PRESSURE RESISTANCE 审中-公开
    具有高耐压性的多模聚乙烯组合物

    公开(公告)号：WO2016005044A1

    公开(公告)日：2016-01-14

    申请号：PCT/EP2015/001374

    申请日：2015-07-06

    Applicant: BOREALIS AG

    Inventor： LIU, Yi ,  ALBUNIA, Alexandra, Romina ,  PIEL, Tanja ,  DOU, Qizheng ,  PROKSCHI, Hermann

    IPC: C08L23/06 ,  C08L23/08

    CPC classification number: C08L23/06 ,  B29C47/0004 ,  B29C47/0023 ,  B29C47/882 ,  B29K2023/065 ,  B29K2023/0683 ,  B29L2023/22 ,  C08F110/02 ,  C08F2500/05 ,  C08F2500/07 ,  C08F2500/11 ,  C08F2500/17 ,  C08L23/0815 ,  C08L2203/18 ,  C08L2205/025 ,  C08L2207/068 ,  C08L2207/07 ,  C08L2308/00

    Abstract: The present invention relates to a multimodal polyethylene composition which can be manufactured into pipes showing improved pressure resistance comprising a high density multimodal ethylene polymer component (A) having a density of at least 930 kg/m 3 , and a MFR 21 of not more than 15 g/10 min, wherein said composition exhibits a LAOS-NLF defined as Formula (I) where G ' 1 - first order Fourier Coefficient G ' 3 - third order Fourier Coefficient of at least 1.7. Such a polyethylene composition is useful for the manufacture of pressure pipes that exhibit improved pressure resistance and creep resistance and do not undergo sagging. Further disclosed is a process for the production of a pipe using such a multimodal polyethylene composition and a pipe comprising such a multimodal polyethylene composition.

    Abstract translation: 本发明涉及一种多峰聚乙烯组合物，其可以制造成显示出改进的耐压性的管，其包含密度为至少930kg / m 3的高密度多峰乙烯聚合物组分（A），MFR 21不大于15g 10分钟，其中所述组合物显示定义为式（I）的LAOS-NLF，其中G'1-一级傅立叶系数G'3-三阶傅里叶系数为至少1.7。 这种聚乙烯组合物可用于制造显示出改善的耐压性和抗蠕变性并且不会下垂的压力管。 进一步公开了使用这种多峰聚乙烯组合物生产管道的方法和包含这种多峰聚乙烯组合物的管道。

    BLENDS OF ETHYLENIC POLYMERS WITH IMPROVED MODULUS AND MELT STRENGTH AND ARTICLES FABRICATED FROM THESE BLENDS
    7.
    发明申请
    BLENDS OF ETHYLENIC POLYMERS WITH IMPROVED MODULUS AND MELT STRENGTH AND ARTICLES FABRICATED FROM THESE BLENDS 审中-公开
    具有改进的模块和熔体强度的乙烯聚合物的混合物和从这些混合物制成的制品

    公开(公告)号：WO2002072691A1

    公开(公告)日：2002-09-19

    申请号：PCT/US2002/004633

    申请日：2002-02-15

    Applicant: THE DOW CHEMICAL COMPANY ,  CHAUDHARY, Bharat, I. ,  OSWALD, Thomas, T. ,  WEINHOLD, Jeffrey

    Inventor： CHAUDHARY, Bharat, I. ,  OSWALD, Thomas, T. ,  WEINHOLD, Jeffrey

    IPC: C08L23/06

    CPC classification number: C08L23/0815 ,  C08L23/02 ,  C08L2205/02 ,  C08L2207/07 ,  C08L2666/04

    Abstract: A blend which comprises; A) a heterogeneous or homogenous linear ethylene homopolymer or interpolymer; B) a branched homopolymer or interpolymer; and C) optionally, one or more thermoplastic polymers other than A or B and selected from the group consisting of ethylene styrene interpolymers (ESI), polypropylene (PP), polystyrene (PS), ethylene-propylene rubber and styrene-butadiene rubber; and wherein said blend has; 1) a melt index, I2, of 0.05 to 20g/10 min; 2) a Flexural modulus of ≥100,000 psi or MS* [(f*A)+((1-f)*B)] where; A=3.3814*(1/I2) 0.6476 and B=10 (1.2896-0.4278*log10(12)) ;and I2 is the measured melt index of the blend; f is the weight fraction of the linear polyethylene in the blend and F MS IS ≥1.1. Also included in the present invention are foams, films, fibers, blow molded articles and extrusion coatings comprising said blend.

    Abstract translation: 一种混合物，其包含： A）非均相或均匀的线性乙烯均聚物或互聚物; B）支链均聚物或互聚物; 和C）任选的一种或多种除A或B之外的热塑性聚合物，选自乙烯 - 苯乙烯共聚体（ESI），聚丙烯（PP），聚苯乙烯（PS），乙烯 - 丙烯橡胶和苯乙烯 - 丁二烯橡胶; 并且其中所述共混物具有： 1）熔体指数I2为0.05〜20g / 10min; 2）弯曲模量> 100,000 / psi或<30,000psi; 3）熔体强度> / = 2cN; 熔体伸长率> 25mm / sec; 并且其中所述共混物的熔体强度满足以下不等式; 熔体强度> / = FMS * [（f * A）+（（1-f）* B）]其中; A = 3.3814 *（1 / I2）<0.6476>和B = 10 <（1.2896-0.4278 * log10（12））>; I2是共混物的测量熔体指数; f是混合物中线性聚乙烯的重量分数，FMS IS> / = 1.1。 本发明还包括泡沫，薄膜，纤维，吹塑制品和包含所述共混物的挤出涂层。

    TRANSPARENT, STERILISABLE PACKAGE OF PLASTIC
    8.
    发明申请
    TRANSPARENT, STERILISABLE PACKAGE OF PLASTIC 审中-公开
    透明的，不可塑化的塑料包装

    公开(公告)号：WO1988010281A1

    公开(公告)日：1988-12-29

    申请号：PCT/SE1988000307

    申请日：1988-06-07

    Applicant: NESTE OY ,  MÅRTENSSON, Hans ,  BÄCKMAN, Mats ,  BUSCHKA, Anette

    Inventor： NESTE OY

    IPC: C08J05/00

    CPC classification number: C08L23/06 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/07 ,  C08L2314/02 ,  C08L2666/06

    Abstract: A transparent, sterilisable package of plastic is described. The packaging material is a mixture of about 55-75 % by weight, preferably about 65 % by weight, of low-density polyethylene (LDPE) and about 25-45 % by weight, preferably about 35 % by weight, of high-density polyethylene (HDPE), preferably HDPE of narrow molecular weight distribution. The package which preferably is in the form of a bag, such as a blood bag, suitably has a wall thickness of about 0,2-2mm and stands up to sterilisation of 121 DEG C for 20 min.

    Abstract translation: 描述了一种透明的，可灭菌的塑料包装。 包装材料是约55-75重量％，优选约65重量％的低密度聚乙烯（LDPE）和约25-45重量％，优选约35重量％的高密度 聚乙烯（HDPE），优选分子量分布窄的HDPE。 优选为袋子形式的包装，例如血袋，适当地具有约0.2-2mm的壁厚，并且在121℃下灭菌20分钟。

    POLYOLEFIN COMPOSITIONS
    9.
    发明申请
    POLYOLEFIN COMPOSITIONS 审中-公开
    聚烯烃组合物

    公开(公告)号：WO2017186728A1

    公开(公告)日：2017-11-02

    申请号：PCT/EP2017/059816

    申请日：2017-04-25

    Applicant: TOTAL RESEARCH & TECHNOLOGY FELUY

    Inventor： BOUVY, Claire ,  MISERQUE, Olivier ,  MICHEL, Jacques

    IPC: C08L23/06

    CPC classification number: C08L23/06 ,  C08L23/0815 ,  C08L2207/07 ,  C08L2308/00 ,  C08L2314/06

    Abstract: The present invention relates to a poiyolefin composition comprising: a) at least one first poiyolefin having a multimodal molecular weight distribution and prepared in the presence of at least one metallocene catalyst; and b) at least one second poiyolefin having a M w /M n of at least 10.0 and a long chain branching index g rheo of at least 0.85, wherein said second poiyolefin is present in an amount of at least 1.0 % by weight based on the total weight of the poiyolefin composition; wherein the second poiyolefin has a High Load Melt Index of at least 0.60 times the High Load Melt Index HLMI of the first poiyolefin and of at most 1.40 times the High Load Melt Index HLMI of the first poiyolefin, as measured following the procedure of ISO 1133 condition G using a temperature of 190 °C and a load of 21.6 kg. The present invention also relates to processes for preparing said composition, and articles made therefrom.

    Abstract translation: 本发明涉及一种聚烯烃组合物，其包含：a）至少一种具有多峰分子量分布且在至少一种茂金属催化剂存在下制备的第一聚烯烃; 和b）至少一种第二聚烯烃，所述第二聚烯烃具有至少10.0的M w / M n n和至少10的长链支化指数g， 至少0.85，其中所述第二聚烯烃以基于聚烯烃组合物总重量的至少1.0重量％的量存在; 其中第二聚烯烃的高负荷熔体指数为第一聚烯烃的高负荷熔体指数HLMI的至少0.60倍并且至多是第一聚烯烃的高负荷熔体指数HLMI的1.40倍，如根据ISO 1133 条件G使用190℃的温度和21.6kg的负荷。 本发明还涉及制备所述组合物的方法和由其制成的制品。

Patent Agency Ranking