POLYMER COMPOSITIONS FOR THERMAL SPRAY COATING

    公开(公告)号:US20200347210A1

    公开(公告)日:2020-11-05

    申请号:US16930961

    申请日:2020-07-16

    摘要: The present invention relates to a polymer composition for use in thermal spray coating application comprising an α-olefin homopolymer or copolymer, a functionalized a-olefin homopolymer or copolymer, a polyolefinic elastomer and an anti-corrosion additive. Such polymer compositions have a good long-term corrosion resistance, good coating to substrate adhesion, good long-term adhesion and good long-term weather resistance.

    PROCESS FOR THE PREPARATION OF POLYOLEFIN PARTICLES

    公开(公告)号:US20190002646A1

    公开(公告)日:2019-01-03

    申请号:US15743865

    申请日:2016-06-30

    IPC分类号: C08J3/12 B01J2/04

    摘要: The present invention relates to a process for producing polyolefin particles from a polyolefin composition, comprising the steps of: a) providing a melted composition of a polyolefin and b) providing particles from the melted composition by: b1) mixing a first flow of a supercritical fluid in the melted composition in a pressure vessel to obtain a solution saturated with the supercritical fluid and b2) passing the solution from the pressure vessel through a throttling device to a spraying tower to expand the solution to obtain the polyolefin particles in the spraying tower, wherein a second flow of a supercritical fluid is injected in the throttling device, wherein the supercritical fluid is a supercritical fluid of a substance selected from the group consisting of CO2, NH3, H2O, N2O, CH4, ethane, propane, propylene, n-butane, i-butane, n-pentane, benzene, methanol, ethanol, isopropanol, isobutanol, chlorotrifluoromethane, monofluoromethane, 1,1,1,2-Tetrafluoroethane, toluene, pyridine, cyclohexane, cyclohexanol, o-xylene, dimethyl ether and SF6 and combinations thereof.

    PROCESS FOR RECYCLING POLYOLEFIN
    5.
    发明申请

    公开(公告)号:US20210130568A1

    公开(公告)日:2021-05-06

    申请号:US16474849

    申请日:2017-12-12

    IPC分类号: C08J11/08 B29B17/02

    摘要: The present invention relates to a process for recycling polyolefin, comprising the steps of: 1) feeding a solid post-consumer polyolefin composition comprising polyolefin and contaminants and a flow of an extraction fluid to an extractor having a pressure of 100-1000 bar and a temperature of 20-80° C. to obtain a solid extracted composition, 2) melting the solid extracted composition to obtain a melted composition, 3) providing particles from the melted composition by: 3a) mixing a flow of a supercritical fluid in the melted composition in a pressure vessel to obtain a solution saturated with the supercritical fluid and 3b) passing the solution from the pressure vessel through a throttling device to a spraying tower to expand the solution to obtain polyolefin particles in the spraying tower.

    POLYOLEFIN COMPOSITION
    7.
    发明申请
    POLYOLEFIN COMPOSITION 审中-公开
    聚烯烃组合物

    公开(公告)号:US20170002188A1

    公开(公告)日:2017-01-05

    申请号:US15106432

    申请日:2014-12-10

    IPC分类号: C08L23/14 B29C45/00

    摘要: The present invention relates to a polyolefin composition comprising a first heterophasic propylene copolymer and a second heterophasic propylene copolymer, wherein the first heterophasic propylene copolymer comprises: from 70-90 wt % of a first polypropylene having a melt flow index of from 55-85 g/10 min as measured according to ISO 1133 (2.16 kg and 230° C.), from 10-30 wt % of a first ethylene α-olefin copolymer having a melt flow index of from 2.5-5.0 g/10 min in accordance with ISO 1133 (2.16 kg and 230° C.), the respective amounts of first polypropylene and first ethylene α-olefin copolymer being based on the weight of the first heterophasic propylene copolymer and wherein the second heterophasic propylene copolymer comprises: from 60-85 wt % of a second polypropylene having a melt flow index of from 50-100 g/10 min as measured according to ISO 1133 (2.16 kg, 230° C.), from 15-40 wt % of a second ethylene α-olefin copolymer having a melt flow index of from 0.050-0.30 g/10 min in accordance with ISO 1133 (2.16 kg and 230° C.), the respective amounts of second polypropylene and second ethylene α-olefin copolymer being based on the weight of the second heterophasic propylene copolymer, and wherein a weight ratio of said first and second heterophasic propylene copolymer is from 1 to 10. The invention further relates to automotive parts comprising said composition and having good tiger stripe performance.

    摘要翻译: 本发明涉及包含第一多相丙烯共聚物和第二多相丙烯共聚物的聚烯烃组合物,其中第一多相丙烯共聚物包含:70-90重量%的熔体流动指数为55-85g的第一聚丙烯 / 10分钟,根据ISO 1133(2.16kg和230℃)测量,10-30wt%的熔体流动指数为2.5-5.0g / 10min的第一乙烯α-烯烃共聚物根据 ISO 1133(2.16kg和230℃),第一聚丙烯和第一乙烯α-烯烃共聚物的相应量基于第一多相丙烯共聚物的重量,其中第二多相丙烯共聚物包含:60-85wt %的根据ISO 1133(2.16kg,230℃)测量的熔体流动指数为50-100g / 10min的第二聚丙烯,15-40wt%的第二乙烯α-烯烃共聚物,其具有 熔体流动指数为0.050-0.30g / 10 min,根据ISO 1133(2.16kg和230℃),第二聚丙烯和第二乙烯α-烯烃共聚物的相应量基于第二异相丙烯共聚物的重量,并且其中所述第一和第二乙烯α-烯烃共聚物的重量比 第二异相丙烯共聚物为1〜10。本发明还涉及包含所述组合物并具有良好的虎条纹性能的汽车部件。

    Process for the production of ethylene polymers

    公开(公告)号:US10696763B2

    公开(公告)日:2020-06-30

    申请号:US15755123

    申请日:2016-07-14

    IPC分类号: C08F210/02 C08F2/02

    摘要: The present invention relates to a process for the production of ethylene polymers in a tubular reactor comprising reacting in said tubular reactor a feed composition comprising ethylene and one or more composition comprising one or more cyclic olefin wherein the cyclic olefin is a compound having the structure of Formula (I): wherein R may be a moiety comprising ≥1 and ≤10 carbon atoms; wherein R1 and R2 may each individually be hydrogen or a moiety comprising ≥1 and ≤5 carbon atoms, R1 and R2 may be the same or different; wherein ⋅ the tubular reactor may be operated at a pressure of ≥200 and ≤280 MPa; ⋅ the average reaction peak temperature may be ≥220° C. and ≤300° C.; ⋅ the composition comprising one or more cyclic olefin may be fed to the reactor in one or more feed inlet of said tubular reactor; and ⋅ said cyclic olefin may be fed to the tubular reactor in quantities of ≤1.0 mol %, with regards to the total feed composition. Such process allows for the production of ethylene polymers having a high density and a high purity.

    Method for preparing ethylene copolymer

    公开(公告)号:US10150826B2

    公开(公告)日:2018-12-11

    申请号:US15327526

    申请日:2015-07-23

    摘要: A process for preparing an ethylene copolymer in the presence of free-radical polymerization initiator at pressures from 150 MPa to 350 MPa and temperatures from 100° C. to 350° C., by copolymerizing ethylene and a comonomer having a C≡C bond and optionally further comonomers, wherein the comonomer having the C≡C bond is represented by formula wherein R1 is hydrogen or methyl; X1 is —CO—O— or —CO—NH—; R2 is —CH2—O—, —O—CO—, —Si(CH3)2—, —Si(CH3)2—O— or —CR5R6— wherein R5 and R6 are independently selected from hydrogen, methyl, ethyl and hydroxyl; n is an integer from 1 to 32 and R2 is same or different from each other when n is 2 to 32; and R3 is —C≡C— and R4 is hydrogen, C1-C10 linear or branched alkyl, C1-C10 linear or branched hydroxyalkyl or phenyl, or the unit R3-R4 stands for wherein X2 is F, Cl, Br or I.

    Polyolefin composition
    10.
    发明授权

    公开(公告)号:US10047218B2

    公开(公告)日:2018-08-14

    申请号:US15106432

    申请日:2014-12-10

    摘要: The present invention relates to a polyolefin composition comprising a first heterophasic propylene copolymer and a second heterophasic propylene copolymer, wherein the first heterophasic propylene copolymer comprises: from 70-90 wt % of a first polypropylene having a melt flow index of from 55-85 g/10 min as measured according to ISO 1133 (2.16 kg and 230° C.), from 10-30 wt % of a first ethylene α-olefin copolymer having a melt flow index of from 2.5-5.0 g/10 min in accordance with ISO 1133 (2.16 kg and 230° C.), the respective amounts of first polypropylene and first ethylene α-olefin copolymer being based on the weight of the first heterophasic propylene copolymer and wherein the second heterophasic propylene copolymer comprises: from 60-85 wt % of a second polypropylene having a melt flow index of from 50-100 g/10 min as measured according to ISO 1133 (2.16 kg, 230° C.), from 15-40 wt % of a second ethylene α-olefin copolymer having a melt flow index of from 0.050-0.30 g/10 min in accordance with ISO 1133 (2.16 kg and 230° C.), the respective amounts of second polypropylene and second ethylene α-olefin copolymer being based on the weight of the second heterophasic propylene copolymer, and wherein a weight ratio of said first and second heterophasic propylene copolymer is from 1 to 10. The invention further relates to automotive parts comprising said composition and having good tiger stripe performance.