ETHYLENE-BASED RESIN AND MOLDED OBJECT OBTAINED THEREFROM

    公开(公告)号:CA2596314C

    公开(公告)日:2010-09-21

    申请号:CA2596314

    申请日:2006-01-31

    Abstract: Ethylene-based resin, which exhibits a satisfactorily high melt tension and can provide a molded object excellent in mechanical strength, the ethylene-based resin characterized in simultaneously satisfying the requirements [1] to [5] described below: [1] melt flow rate (MFR) under a loading of 2.16 kg at 190°C is in the range of 0.1 to 100 g/10 minutes; [2] density (d) is in the range of 875 to 970 kg/m3; [3] ratio [MT/.eta.* (g/P) ] of melt tension [MT (g) ] at 190°C to shearing viscosity [.eta.* (P) ] at 200°C at an angular velocity of 1.0 rad/sec. is in the range of 1.50x10 -4 to 9.00x10 -4; [4] sum [(A+B)(/1000C)] of the number of methyl branches [A(/1000C)] and the number of ethyl branches [B(/1000C)] per 1000 carbon atoms measured by 13C-NMR is 1.8 or less; and [5] zero shear viscosity [.eta.0(P)] at 200°C and weight-average molecular weight(Mw)measured by GPC-viscosity detector method (GPC-VISCO) satisfy the following relational expression (Eq-1): 0.01 x 10 -13 x Mw3.4

    ETHYLENIC RESIN AND FORMED ARTICLE OBTAINED THEREFROM

    公开(公告)号:SG173234A1

    公开(公告)日:2011-08-29

    申请号:SG2010006435

    申请日:2006-01-31

    Abstract: Ethylene-based resin, which exhibits a satisfactorilyhigh melt tension and can provide a molded object excellentin mechanical strength, the ethylene-based resin characterizedin simultaneously satisfying the requirements [1] to [5]described below:[1] melt flow rate (MFR) under a loading of 2.16 kg at 190°Cis in the range of 0.1 to 100 g/10 minutes;[2] density (d) is in the range of 875 to 970 kg/m3;[3] ratio [MT/r[`(g/P)] of melt tension [MT (g)] at 190°C toshearing viscosity [r; (P) ] at 200°C at an angular velocity of1.0 rad/sec. is in the range of 1.50x10-9 to 9.00x10-4;[4] sum [(A+B)(/100CC)] of the number of methyl branches[A(/1000C)] and the number of ethyl branches [B(/1000C)] per1000 carbon atoms measured by 13C-NMR is 1.8 or less; and[5] zero shear viscosity [no(P)] at 200°C and weight-averagemolecular weight (Mw) measuredby GPC-viscosity detector method(GPC-VISCO) satisfy the following relational expression(Eq-1):0.01xl0-13xMw1_9

    6.
    发明专利
    未知

    公开(公告)号:AT478099T

    公开(公告)日:2010-09-15

    申请号:AT05806611

    申请日:2005-11-18

    Abstract: The present invention provides ethylene-based copolymer microparticles and functional group-containing ethylene-based copolymer microparticles that have particle diameter smaller than that of conventional polyethylene fine-particles, no inter-particle agglomeration, very narrow particle size distribution, and high sphericity, in which requirements (A) to (E) below are satisfied. The invention also provides non-agglomerated spherical magnesium containing microparticles used as magnesium-containing carrier component for olefin-polymerization catalysts that can manufacture the above microparticles. (Requirements) (A) The intrinsic viscosity [·] measured in decalin at 135°C is in the range of 0.1 to 50 dl/g, (B) at least 95 wt% or more of particles pass through a mesh screen with an opening of 37 µm, (C) the median diameter (d 50 ) measured by laser diffraction scattering is 3 µm ‰ d 50 ‰ 25 µm, (D) the circularity coefficient is 0.85 or more, and (E) the variation coefficient of particle diameter (Cv) is 20% or less.

    9.
    发明专利
    未知

    公开(公告)号:BR0107037A

    公开(公告)日:2003-06-10

    申请号:BR0107037

    申请日:2001-07-26

    Abstract: The present invention relates to a polymer having a melt tension (MT (g)) substantially the same as or lower than that of a conventional polymer which is substantially the same as the polymer in the recurring unit of the main skeleton, the molecular weight, the molecular weight distribution and the crystallinity, and having a flow activation energy (Ea (KJ/mol)) larger than a value obtained by adding 5 KJ/mol to the Ea value of the conventional polymer. A preferred example 'of the polymer is a branched polyolefin comprising 50 to 100 % by mol of recurring units derived from ethylene and 0 to 50 % by mol of recurring units derived from an alpha -olefin of 3 to 20 carbon atoms and having the following properties: the flow activation energy (Ea (KJ/mol)) and the alpha -olefin content (C (% by weight)) satisfy a specific relation, and the melt tension (MT (g)) and the melt flow rate (MFR (g/10 min)) satisfy a specific relation. This branched polyolefin is excellent in moldability and mechanical strength.

Patent Agency Ranking