Invention Grant
- Patent Title: Composition comprising heterophasic propylene copolymer
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Application No.: US17431651Application Date: 2020-02-11
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Publication No.: US12202959B2Publication Date: 2025-01-21
- Inventor: Marc Herklots , Daniel Bande , Ginger De La Croix , Dimphna Johanna Maria Van Beek
- Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
- Applicant Address: NL Bergen op Zoom
- Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
- Current Assignee Address: NL Bergen op Zoom
- Agency: CANTOR COLBURN LLP
- Priority: EP19157835 20190218
- International Application: PCT/EP2020/053413 WO 20200211
- International Announcement: WO2020/169402 WO 20200827
- Main IPC: C08L23/12
- IPC: C08L23/12 ; C08K3/34 ; C08K5/098 ; C08K5/20 ; C08L23/08 ; C08L23/16

Abstract:
The invention relates to a composition comprising (A) a heterophasic propylene copolymer and (B) an ethylene copolymer of ethylene and an alpha-olefin comonomer units having 4 to 10 carbon atoms, wherein (A) the heterophasic propylene copolymer 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 70 wt % of propylene monomer units and at most 30 wt % of ethylene and/or α-olefin monomer units, based on the total weight of the propylene-based matrix and wherein the propylene-based matrix is present in an amount of 80 to 95 wt % based on the total heterophasic propylene copolymer and (b) a dispersed ethylene-α-olefin copolymer, wherein the dispersed O ethylene-α-olefin copolymer is present in an amount of 5 to 20 wt %, preferably 8 to 15 wt %, based on the total heterophasic propylene copolymer and wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %, wherein the amount of ethylene in the ethylene-α-olefin copolymer of the heterophasic propylene copolymer is 10 to 45 wt %, preferably 30 to 38 wt %, and wherein (B) the ethylene copolymer has a density of to 0.850 to 0.910 g/cm3 and a melt flow index of 10.0 to 50.0 dg/min, preferably 30.0 dg/min, measured in accordance with ASTM D1238 (2.16 kg/190° C.), wherein the composition comprises less than 5 wt % of talc with respect to the total composition.
Public/Granted literature
- US20220251359A1 COMPOSITION COMPRISING HETEROPHASIC PROPYLENE COPOLYMER Public/Granted day:2022-08-11
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