HETEROPHASIC PROPYLENE COPOLYMER COMPOSITION

    公开(公告)号:US20220306850A1

    公开(公告)日:2022-09-29

    申请号:US17638328

    申请日:2020-08-14

    Abstract: The invention relates to a heterophasic propylene copolymer composition comprising a heterophasic propylene copolymer (A), optionally an ethylene-unit containing polymer (B) and an inorganic filler (C), wherein the heterophasic propylene copolymer (A) consists of a) a propylene-based matrix wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene copolymer consisting of at least 90 wt % of propylene units and at most 10 wt % of comonomer units selected from ethylene monomer units and α-olefin monomer units having 4 to 10 carbon atoms wherein the propylene-based matrix is present in an amount from 87.0 to 92.0 wt % based on the heterophasic propylene copolymer and b) a dispersed ethylene α-olefin copolymer, wherein the dispersed α-olefin copolymer is present in an amount from 8.0 to 13.0 wt % based on the heterophasic propylene copolymer and wherein the sum of the weight of the propylene-based matrix and the weight of the dispersed ethylene-α-olefin copolymer is 100 wt % based on the heterophasic propylene copolymer, wherein C) the inorganic filler is present in an amount of 0.10 to 4.9 wt % based on the composition wherein the melt flow index of the composition is in the range from 5.0 to 9.0 dg/min as determined according to ISO 1133:2011 at 230° C. and 2.16 kg and wherein the total amount of ethylene units in the composition are in the range from 5.7 to 10.0 wt % based on the composition.

    RECOVERY OF ISOPRENE AND CPD FROM A PYGAS STREAM

    公开(公告)号:US20220306552A1

    公开(公告)日:2022-09-29

    申请号:US17635452

    申请日:2020-08-12

    Abstract: Systems and methods for recovering cyclopentadiene and/or isoprene from a mixture comprising C5 hydrocarbons are disclosed. A C5 mixture comprising cyclopentadiene and/or isoprene is flowed into a dimerization unit to form dimers. The dimers are then separated from the unreacted C5 hydrocarbons. The separated dimers are monomerized to form a stream comprising cyclopentadiene and/or isoprene, which is subsequently separated to form a first product stream comprising primarily isoprene and a second product stream comprising primarily cyclopentadiene.

    Exterior or semi-exterior automotive part

    公开(公告)号:US11434355B2

    公开(公告)日:2022-09-06

    申请号:US16472571

    申请日:2017-12-19

    Abstract: The present invention relates to an exterior or semi-exterior automotive part prepared from a thermoplastic composition comprising: from 48-95 wt. % heterophasic propylene copolymer; wherein said heterophasic propylene copolymer consists of i) a propylene-based matrix, and ii) a dispersed ethylene-α-olefin copolymer comprising ethylene and at least one C3 to C10 α-olefin; from 0-20 wt. % ethylene-α-olefin elastomer comprising ethylene and at least one C3 to C10 α-olefin; from 1 up to 30 wt. % high aspect ratio (HAR) talc as a filler; from 0 to 5 wt. % of another talc; from 0.05-1 wt. % phenolic antioxidant additive; from 0.05-1 wt. % amphiphilic protective additive comprising a hydrophilic part and a hydrophobic part; and from 0-3 wt. % additional additives. It moreover relates to a method of producing these and to the use of such a composition for the manufacture of an exterior or semi-exterior part in automotive applications.

    Process for the production of modified polyethylene materials

    公开(公告)号:US11421064B2

    公开(公告)日:2022-08-23

    申请号:US17051234

    申请日:2019-04-29

    Abstract: The present invention relates to a process for the production of modified polyethylene comprising adding a free radical initiator composition and a polar monomer in extrusion of polyethylene materials with a melt mass flow rate (MFR) as determined in accordance with ISO 1133-1 (2011) at 190° C. under a load of 2.16 kg of between 0.5 and 75 g/10 min characterized in that the free radical initiator composition is added in quantities between 0.01 wt % to 5 wt % compared to the total weight of the polyethylene material wherein the extrusion is performed at a temperature between 230° C. and 350° C. Such process allows for the production of modified polyethylenes, such as having an amount of grafted polar monomer, such as maleic anhydride, of >3 wt %, with low amount of free, unreacted monomer whilst maintaining or not significantly modifying melt properties such as melt mass flow rate.

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