NUCLEATED PROPYLENE POLYMER COMPOSITION
    43.
    发明公开

    公开(公告)号:EP3526286A1

    公开(公告)日:2019-08-21

    申请号:EP17783437.1

    申请日:2017-10-05

    Abstract: A nucleated propylene polymer composition comprising: A) from 77 wt% to 91 wt%, of a propylene homopolymer having a fraction insoluble in xylene at 25 °C higher than 95 %; B) from 9 wt % to 23 wt%, of a copolymer of propylene with from 28.0 wt% to 42.0 wt% of ethylene derived units; the composition having an intrinsic viscosity of the fraction soluble in xylene at 25 °C comprised between 1.0 dl/g and 1.9 dl/g, a fraction soluble in xylene at 25 °C comprised between 9.0 wt% and 21.0 wt%, a total melt flow rate (Melt Flow Rate according to ISO 1133, condition L, i.e. 230°C and 2.16 kg load) comprised between 1.5 and 5 g/10 min and the value of the relation (I): 22.5+0.2*MFR-1.2*Xs+0.2*IV is higher than 5.9; wherein MFR is the melt flow rate of the nucleated composition (Melt Flow Rate according to ISO 1133, condition L, i.e. 230°C and 2.16 kg load); IV is the intrinsic viscosity of the fraction soluble in xylene at 25 °C; and Xs is the fraction soluble in xylene at 25°C; wherein the amount of A+B is equal to 100 wt% and wherein the nucleated agent is selected from the group consisting of aromatic or aliphatic carboxylic acids, aromatic metal phosphates, sorbitol derivatives and talc.

    POLYMER FILAMENT
    47.
    发明公开
    POLYMER FILAMENT 有权
    POLYMERFILAMENT

    公开(公告)号:EP2480707A1

    公开(公告)日:2012-08-01

    申请号:EP10751696.5

    申请日:2010-09-13

    CPC classification number: D01F6/46 D01D5/42 D06N7/0065 E01C13/08

    Abstract: A polymer filament comprising a polyolefin composition which comprises at least 10% by weight of one or more copolymer(s) (I) of propylene with one or more comonomers selected from ethylene, C4-C10 α-olefins and their combinations, said copolymer or copolymers (I) having MFR from 0.5 to 10 g/10 min. and containing units deriving from the said comonomers in a total amount of from 0.5 to 25% by weight with respect to the total amount of all momoner units in the copolymer, provided that, in the absence of comonomer units deriving from C6-C10 α-olefins, the amount of comonomer units deriving from ethylene or C4-C5 α-olefins or their combinations is at least 2.5% by weight.

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