Process for forming a consumable filament

    公开(公告)号:US10385478B2

    公开(公告)日:2019-08-20

    申请号:US16094647

    申请日:2017-03-20

    Abstract: The present disclosure provides a filament for use in an extrusion-based additive manufacturing system made from or containing a propylene ethylene copolymer having: ethylene derived units content ranging from about 3.0 wt % to about 12.0 wt %, based upon the weight of the propylene ethylene copolymer; MFR L (Melt Flow Rate according to ISO 1133, condition L, at 230° C. and 2.16 kg load) from about 4 to about 20 g/10 min; and xylene solubles measured at 25° C. from about 3 wt % to about 30 wt %, based upon the weight of the propylene ethylene copolymer. The disclosure further provides an extrusion-based additive manufacturing system made from or containing the filament as well as 3D printed articles prepared from the system.

    PROPYLENE-BASED TERPOLYMERS COMPOSITION FOR PIPES
    43.
    发明申请
    PROPYLENE-BASED TERPOLYMERS COMPOSITION FOR PIPES 有权
    用于管道的丙烯基聚合物组合物

    公开(公告)号:US20140349051A1

    公开(公告)日:2014-11-27

    申请号:US14362564

    申请日:2012-12-05

    Abstract: A polyolefin composition comprising:A) from 85.0 wt % to 99.5 wt %; A terpolymer containing propylene, ethylene and 1-hexene wherein:(i) the content of 1-hexene derived units ranges from 1.0 wt % to 5.0%;(ii) the content of ethylene derived units is comprised between 0.5 wt % and 10.0 wt %(iii) the melting temperature ranges from 130° C. to 145° C.;B) from 0.5 wt % to 10.0 wt %; of a propylene, ethylene copolymer composition comprising:b1) from 12 wt % to 52 wt %; of a propylene homopolymer or a propylene/ethylene copolymer having a content of ethylene derived units ranging from 0.1 wt % to 4.5 wt %; and having a xylene soluble content measured at 25° C. lower than 10 wt %;b2) from 48 wt % to 88 wt % of a propylene ethylene copolymer having a content of ethylene derived units ranging from 15.0 wt % to wt % to 42.0 wt %;wherein the resulting polyolefin composition has an melt flow rate (230° C./5 kg. ISO 1133) ranging from 0.2 g/10 min to 4.0 g/10 min; the sum A+B being 100 and the sum b1+b2 being 100.

    Abstract translation: 一种聚烯烃组合物,其包含:A)85.0重量%至99.5重量%; 含有丙烯,乙烯和1-己烯的三元共聚物,其中:(i)1-己烯衍生单元的含量为1.0wt%至5.0%; (ii)乙烯衍生单元的含量为0.5重量%至10.0重量%之间(iii)熔融温度范围为130℃至145℃; B)为0.5重量%〜10.0重量% 的丙烯,乙烯共聚物组合物,其包含:b1)12重量%至52重量%; 的丙烯均聚物或丙烯/乙烯共聚物,其乙烯衍生单元的含量范围为0.1重量%至4.5重量%; 并且在25℃下测得低于10重量%的二甲苯可溶物含量; b2)为48重量%至88重量%的乙烯衍生单元含量为15.0重量%至42重量%的丙烯乙烯共聚物; 其中所得聚烯烃组合物的熔体流动速率(230℃,5kg,ISO 1133)为0.2g / 10min至4.0g / 10min; 总和A + B为100,总和b1 + b2为100。

    SOFT POLYPROPYLENE COMPOSITIONS
    44.
    发明申请

    公开(公告)号:US20240384077A1

    公开(公告)日:2024-11-21

    申请号:US18694667

    申请日:2022-09-09

    Abstract: A propylene polymer composition made from or containing: A) 65 to 95 wt % of a polypropylene composition having a MFR (230° C./2.16 kg) from 0.2 to 1.2 g/10 min, made from or containing (a) 15 to 45 wt % of a fraction made from or containing a propylene homopolymer, or a copolymer of propylene with ethylene or a CH2═CHR alpha-olefin, having a fraction insoluble in xylene at 25°° C. for at least 90 wt %; and (b) 55 to 75 wt % of a fraction made from or containing a copolymer of ethylene with propylene or CH2═CHR alpha-olefins, containing ethylene derived-units in a quantity lower than 40 wt %, and having solubility in xylene at 25° C. greater than 60 wt %, and (B) 5 to 35 wt % of recycled styrene block copolymer having a melt flow rate (190° C./2.16 Kg) from 0.5 to 15 g/10 min, wherein the propylene polymer composition having a MFR from 0.4 to 1.4 g/10 min.

    Compositions obtained from recycled polyolefins

    公开(公告)号:US11174379B2

    公开(公告)日:2021-11-16

    申请号:US16758526

    申请日:2018-11-05

    Abstract: A polyolefin composition made from or containing:
    T1) 70-95 wt %, of a polyolefin component containing:
    a1) from 30 wt % to 70 wt % of a propylene based polymer; and
    a2) from 30 wt % to 70 wt % of an ethylene based polymer; and
    T2) 5-30 wt % of a polyolefin component containing:
    A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer;
    B) 25-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin containing 0.1-20% by weight of C3-C8 alpha-olefin units; and
    C) 30-60% by weight of a copolymer of ethylene and propylene containing 25-75% by weight of ethylene units.

Patent Agency Ranking