PROCESS FOR PREPARING POLYALPHA-OLEFINS
    3.
    发明公开

    公开(公告)号:US20240352159A1

    公开(公告)日:2024-10-24

    申请号:US18682304

    申请日:2022-08-10

    摘要: The invention relates to a process for preparing polyalpha-olefins using a catalyst composition comprising a reaction product of an organometallic complex and a co-catalyst, wherein the comprising an organometallic complex is represented by the general formula: LMXn wherein: (i) ‘L’ is an organic ligand; (ii) ‘M’ is a transition metal having a valency of ‘p’, wherein the metal ‘M’ is selected from Ti, Zr, and Hf; (iii) ‘X’ is an anionic ligand to the metal ‘M’, and wherein ‘X’ is selected from the group consisting of halogens, alkyls, aralkyls, alkoxides, amides, and combinations thereof; (iv) ‘n’ is the number of ‘X’ groups and equals p-2.

    COMPOSITION FOR LUGGAGE CASE
    7.
    发明公开

    公开(公告)号:US20240336771A1

    公开(公告)日:2024-10-10

    申请号:US18719952

    申请日:2022-12-13

    摘要: The invention relates to a composition comprising (A) a heterophasic propylene copolymer, (B) a propylene homopolymer and (C) a polyolefin-based elastomer, wherein (A) the heterophasic propylene copolymer consists of (al) a propylene-based matrix, wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene copolymer consisting of at least 90 wt % of propylene monomer units and at most 10 wt % of ethylene and/or α-olefin monomer units, based on the total weight of the propylene-based matrix and (a2) a dispersed ethylene-α-olefin copolymer, wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %, (C) the polyolefin-based elastomer has a melt flow index of 15 to 50 dg/min measured according to ASTM D1238 with a 2.16 kg load at 190° C., the total amount of (a2) and (C) with respect to the total composition is 20.0 to 26.0 wt % and the composition has a melt flow index as measured according to ISOl133-1:2011 with a 2.16 kg load at 230° C. of 25 to 60 dg/min.

    Package comprising a bi-directionally oriented polyethylene film

    公开(公告)号:US12104026B2

    公开(公告)日:2024-10-01

    申请号:US17639073

    申请日:2020-08-28

    IPC分类号: C08J5/18 B32B27/08 B32B27/32

    摘要: The present invention relates to a package comprising a bi-directionally oriented polyethylene film, wherein the bi-directionally oriented film comprises a polymer having moieties derived from ethylene and moieties derived from 1-hexene, wherein the polymer has: (a) a density of ≥910 and ≤930 kg/m3, preferably ≥916 and ≤925 kg/m3, as determined in accordance with ASTM D792 (2008); (b) a melt mass-flow rate of ≥0.2, preferably ≥0.5 or ≥0.6, and ≤5.0 g/10 min, as determined in accordance with ASTM D1238 (2013) at a temperature of 190° C. under a load of 2.16 kg; (c) a fraction that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≤30.0° C. of ≥8.0 wt %, preferably ≥11.0 wt %, with regard to the total weight of the polymer; and (d) a fraction eluted in a-TREF at a temperature >94.0° C. of ≥20.0 wt %, with regard to the total weight of the polymer; and preferably (e) a fraction eluted in a-TREF at a temperature >30.0° C. and ≤94.0° C. of ≥40.0 and ≤64.0 wt %, with regard to the total weight of the polymer; wherein the package is a bag or pouch containing at least one seal obtained by thermal sealing of two layers of the polyethylene film. Such package allows for handling, in particular opening, in a controlled way such that when a tear is introduced to open the package, that tear can be introduced in a controlled line.