HIGH SPEED CROSS-LINKING OF GRAFTED PLASTOMERS

    公开(公告)号:WO2020069951A1

    公开(公告)日:2020-04-09

    申请号:PCT/EP2019/075978

    申请日:2019-09-26

    Applicant: BOREALIS AG

    Abstract: The present invention discloses a process for providing a cross-linked composition, the process comprising the steps of (a) providing an ethylene-α-olefin plastomer having - a density of from 850 kg/m³ to 900 kg/m³; and - an melt flow rate (ISO 1133, 2.16kg, 190°C) of 0.3 to 50 g/10min; (b) grafting the ethylene-α-olefin plastome rwith silane crosslinker such that the content of silane crosslinker is in the range of 0.1 to 10.0 wt.- % with respect to the grafted ethylene-α-olefin plastomer; (c) contacting said grafted ethylene-α-olefin plastomer with 2 to 8 wt.-% of a tin-free silane crosslinking catalyst with respect to the resulting mixture of grafted ethylene-α-olefin plastomer and tin-freesilane crosslinking catalyst, wherein said tin-free catalyst comprises a Brönsted acid at 23°C and 50% relative humidity for at least 15 minutes thus forming a cross-linked composition, wherein gel content of said cross-linked composition after 15 min is at least 60%.

    METHOD FOR IMPROVING THE STORAGE STABILITY AND/OR TRANSPORT STABILITY OF A POLYMER

    公开(公告)号:WO2021043782A1

    公开(公告)日:2021-03-11

    申请号:PCT/EP2020/074381

    申请日:2020-09-02

    Applicant: BOREALIS AG

    Abstract: The present invention refers to a method for improving the storage stability and/or transport stability of polymer (A) comprising the following steps: a) providing polymer (A) selected from the group consisting of copolymers of ethylene and a C4 to C12 alpha olefin comonomer, copolymers of propylene and mixtures thereof containing additionally comonomer units comprising hydrolysable silane groups; b) providing a stabilizer (B) selected from the group consisting of sterically hindered phenols, alkyltrialkoxysilanes, alkenyltrialkoxysilanes and mixtures thereof; c) mixing polymer (A) and stabilizer (B) to obtain a stabilized polymer composition (I); and d) transferring the stabilized polymer composition (I) obtained in step c) in a container comprising at least one barrier layer. In addition, the present invention relates to the use of stabilizer (B) for improving the storage stability and/or transport stability of polymer (A) stored and/or transported in a container having a barrier layer.

    FLAME RETARDANT POLYMER COMPOSITION
    4.
    发明申请
    FLAME RETARDANT POLYMER COMPOSITION 审中-公开
    阻燃聚合物组合物

    公开(公告)号:WO2013159942A2

    公开(公告)日:2013-10-31

    申请号:PCT/EP2013/001278

    申请日:2013-04-29

    Applicant: BOREALIS AG

    Abstract: The present invention relates to a flame retardant polymer composition comprising a crosslinkable terpolymer comprising ethylene monomer units, a silane group containing comonomer units and comonomer units comprising a polar group; a metal carbonate filler and a silicone fluid or gum; wherein the content of the comonomer units comprising a polar group is between 2 and 25wt% of the terpolymer and the content of the silane group containing comonomer units is between 0.2 and 4 wt% of the terpolymer. The present invention is also directed to the process for the production of the polymer composition, to a cable and/or to an electrical device having a layer comprising said polymer composition, and uses thereof.

    Abstract translation: 本发明涉及阻燃聚合物组合物,其包含包含乙烯单体单元,含硅烷基团的共聚单体单元和包含极性基团的共聚单体单元的可交联三元共聚物; 金属碳酸盐填料和硅油或胶; 其中包含极性基团的共聚单体单元的含量为三元共聚物的2至25重量%,并且含硅烷基团的共聚单体单元的含量为三元共聚物的0.2至4重量%。 本发明还涉及制备聚合物组合物的方法,涉及具有包含所述聚合物组合物的层的电缆和/或电气装置及其用途。

Patent Agency Ranking