CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS
    61.
    发明申请
    CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS 有权
    用于烯烃聚合的催化组分

    公开(公告)号:US20140243490A1

    公开(公告)日:2014-08-28

    申请号:US14352251

    申请日:2012-10-10

    CPC classification number: C08F4/52 C08F110/06 C08F2500/12 C08F4/651 C08F4/6545

    Abstract: Catalyst component for the polymerization of olefins comprising Mg, Ti and an electron donor compound of the following formula (I) In which R to R4 groups, equal to or different from each other, are hydrogen, halogen or C1-C15 hydrocarbon groups, optionally containing an heteroatom selected from halogen, P, S, N and Si, which may be linked to form a saturated or unsaturated mono or polycycle and R5 groups are selected from C1-C15 hydrocarbon groups optionally containing an heteroatom selected from halogen, P, S, N and Si.

    Abstract translation: 用于包含Mg,Ti和下式(I)的电子给体化合物的烯烃聚合的催化剂组分其中R至R 4基团彼此相同或不同的是氢,卤素或C 1 -C 15烃基,任选地 含有选自卤素,P,S,N和Si的杂原子,其可连接形成饱和或不饱和单或多环和R 5基团,其选自任选含有选自卤素,P,S的杂原子的C 1 -C 15烃基 ,N和Si。

    Propylene polymer fibers
    62.
    发明授权

    公开(公告)号:US12291628B2

    公开(公告)日:2025-05-06

    申请号:US17616854

    申请日:2020-05-18

    Abstract: A process for preparing fibers made from or containing propylene homopolymer having: a melting point ranging from 150° C. to 164° C.; a fraction soluble in xylene at 25° C. between 6.0 wt % and 2.0 wt %; a fraction soluble in acetone 25° C. between 0.5 wt % and 2.0 wt %; a ratio fraction soluble in xylene at 25° C./fraction soluble in acetone 25° C. between 0.30 and 0.60; a polydispersity index ranging from 2.8 to 4.5; and a melt flow rate (ISO 1133, 230° C./2.16 kg) between 2 to 40 g/10 min.

    POLYOLEFIN FILAMENT
    63.
    发明申请

    公开(公告)号:US20250051973A1

    公开(公告)日:2025-02-13

    申请号:US18717910

    申请日:2022-12-05

    Abstract: A stretched polyolefin filament, having elongation at break EB of equal to or higher than 80% and a ratio SR/EB, where SR is the stretching ratio, of equal to or lower than 45, made from or containing: a polyolefin composition (I), made from or containing A) from 40% to 78% by weight of a propylene polymer; B) from 22% to 60% by weight of a butene-1 polymer having: 1) a flexural modulus value from 100 to 800 MPa; 2) a ratio MI10/MI2 of from 20 to 40; and 3) a content of fraction soluble in xylene at 0° C. of 15% by weight or lower; wherein the amounts of A) and B) are referred to the total weight of A)+B).

    POLYOLEFIN FILAMENT
    64.
    发明申请

    公开(公告)号:US20250043464A1

    公开(公告)日:2025-02-06

    申请号:US18717886

    申请日:2022-12-05

    Abstract: A stretched polyolefin filament, having elongation at break EB of equal to or higher than 90% and a ratio SR/EB, where SR is the stretching ratio, of equal to or lower than 75, made from or containing: a polyolefin composition (I), made from or containing A) from 80% to 95% by weight of a propylene polymer; B) from 5% to 20% by weight of a butene-1 polymer having: 1) a flexural modulus value from 100 to 800 MPa; 2) a ratio MI10/MI2 of from 20 to 40; and 3) a content of fraction soluble in xylene at 0° C. of 15% by weight or lower; wherein the amounts of A) and B) are referred to the total weight of A)+B).

    PROPYLENE POLYMER COMPOSITION
    65.
    发明申请

    公开(公告)号:US20240384080A1

    公开(公告)日:2024-11-21

    申请号:US18693834

    申请日:2022-09-13

    Abstract: A polypropylene composition made from or containing: A) from 90.6 wt % to 97.0 wt % of a propylene homopolymer having a melt flow rate between 40.0 g/10 min and 100.0 g/10 min; and B) from 3.0 wt % to 9.4 wt % of a propylene ethylene copolymer having an ethylene content ranging from 22 wt % to 38 wt %; wherein the polypropylene composition having: i) a xylene soluble fraction at 25° C. ranging from 5 wt % to 13.0 wt %; ii) the ethylene derived units content on the fraction insoluble in xylene at 25° C. ranging from 0.3 wt % to 1.6 wt %; iii) the ethylene derived units content on the fraction soluble in xylene at 25° C. ranging from 13.2 wt % to 27.0 wt %; and (iv) a melt flow rate, MFR between 35.0 g/10 min and 70.0 g/10 min.

    PROPYLENE ETHYLENE COPOLYMER
    66.
    发明公开

    公开(公告)号:US20240352165A1

    公开(公告)日:2024-10-24

    申请号:US18684539

    申请日:2022-08-16

    Abstract: A propylene ethylene copolymer having:



    i) a xylene soluble fraction at 25° C. ranging from 30 wt % to 48 wt %;
    ii) an intrinsic viscosity of the xylene soluble fraction, ranging from 2.8 to 4.3 dl/g;
    iii) a melt flow rate, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranging from 0.2 g/10 min to 10 g/10 min;
    iv) an ethylene derived units content ranging from 10.3 wt % to 15.4 wt %;
    v) the ethylene derived units content on the xylene insoluble fraction, ranging from 6.1 wt % to 9.0 wt %;
    vi) the ethylene derived units content on the xylene soluble fraction, ranging from 18.2. wt % to 30.2 wt %;
    vii) the 13C-NMR sequences PEP measured on the xylene insoluble fraction, ranging from 4.1 mol % to 6.5 mol %; and
    (viii) the 13C-NMR sequences PEP measured on the xylene soluble fraction, ranging from 10.5 mol % to 14.2 mol %.

Patent Agency Ranking