MIXTURES OF BITUMEN AND POLYMER COMPOSITIONS

    公开(公告)号:WO2020144102A1

    公开(公告)日:2020-07-16

    申请号:PCT/EP2020/050052

    申请日:2020-01-03

    Abstract: A mixture comprising: T1) from 99 wt% to 75 wt% of bitumen, and T2) from 1 wt% to 25 wt% of polymer composition comprising the following components, A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight; of a copolymer of ethylene and a C 3 -C 8 alpha-olefin containing from 1.0 % to 20.0 % by weight of alpha-olefin units; and C) 30-60% by weight of a copolymer of ethylene and propylene containing from 25.0 % to 75.0 % by weight of ethylene derived units.

    MIXTURES OF BITUMEN AND 1-BUTENE POLYMERS
    8.
    发明公开

    公开(公告)号:EP3835363A1

    公开(公告)日:2021-06-16

    申请号:EP19215518.2

    申请日:2019-12-12

    Abstract: The present disclosure relates to a mixture comprising:
    (A) 70%-98% by weight of a bitumen; and
    (B) 2%-30% by weight of a butene-1 polymer composition having a Melt Flow Rate (MFR) value, measured according to ISO 1133-2:2011 at 190°C, 2.16kg, of from 200 to 1,500 g/10min., said composition comprising:
    (B I ) a butene-1 homopolymer or a copolymer of butene-1 having a copolymerized comonomer content (C I ) of up to 5% by mole;
    (B II ) a copolymer of butene-1 having a copolymerized comonomer content (C II ) of from 6% to 20% by mole;
    said composition (B) having a total copolymerized comonomer content from 4% to 15% by mole, referred to the sum of (B I ) and (B II );
    wherein the amounts of (A) and (B) are referred to the total weight of (A) + (B).

Patent Agency Ranking