# US 10,479,883 B2 · Compositions for automotive interior parts > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,479,883 B2 - Document ID: US10479883B2 - Status: Granted - Kind: B2 - Application number: 15/571,571 - Filed: 2016-04-29 - Published: 2018-06-07 - Granted: 2019-11-19 - Earliest claimed: 2015-05-05 - Assignees: Sabic Global Technologies B.V. - Applicants: Sabic Global Technologies B.V. - Inventors: Pieter Valkier; Dimphna Johanna Maria van Beek - Web page: https://patentgrep.com/patent/US10479883B2 ## CPC - C08L 23/14: Copolymers of propene (C08L23/16 takes precedence) - C08L 23/08: Copolymers of ethene (C08L23/16 takes precedence) - C08L 23/10: Homopolymers or copolymers of propene - C08L 2205/02: containing two or more polymers of the same C08L -group - C08L 2205/03: containing three or more polymers in a blend - C08L 2205/035: containing four or more polymers in a blend - C08L 2207/02: Heterophasic composition - C08L 2207/04: Thermoplastic elastomer - C08L 2207/062: HDPE - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract The present invention relates to a composition comprising a heterophasic propylene copolymer and an ethylene polymer wherein the ethylene polymer has a density as measured according to ISO 1183-1 (2012), method A of ≥940 kg/m3, the ethylene polymer has a multimodal molecular weight distribution and the ethylene polymer has a strain hardening modulus of ≥5.0 MPa, the strain hardening modulus being measured according to ISO DIS 18488 (2014) using test specimens of 0.30 mm thickness. Such composition has a low surface gloss, while at least one of impact strength, scratch resistance and/or flexural modulus is improved. Such composition may for example be used in automotive interior parts. ## Claims ### Claim 1 Composition comprising a heterophasic propylene copolymer and an ethylene polymer wherein the ethylene polymer has a density as measured according to ISO 1183-1 (2012), method A of ≥940 kg/m3, the ethylene polymer has a multimodal molecular weight distribution and the ethylene polymer has a strain hardening modulus of ≥5.0 MPa, the strain hardening modulus being measured according to ISO DIS 18488 (2014) using test specimens of 0.30 mm thickness. ### Claim 2 (depends on 1) Composition according to claim 1, wherein the heterophasic propylene copolymer has a xylene soluble fraction as determined according to ISO 16152 (2005) of ≥5.0% and ≤27.0% by weight compared to the total weight of the heterophasic propylene copolymer. ### Claim 3 (depends on 1) Composition according to claim 1, wherein the xylene soluble fraction of the heterophasic propylene copolymer as obtained according to the method described in ISO 16152 (2005) has an intrinsic viscosity as determined according to ISO 1628-3 (2010) of at least 200 ml/g. ### Claim 4 (depends on 1) Composition according to claim 1, wherein the composition comprises one or more inorganic fillers in an amount of ≥2.0 and ≤20.0% by weight compared to the total weight of the composition. ### Claim 5 (depends on 4) Composition according to claim 4, wherein the one or more inorganic fillers is selected from the group of talcs. ### Claim 6 (depends on 5) Composition according to claim 5, wherein the median Stokes equivalent spherical diameter of the talc particles is ≤1.0 μm as determined according to ISO 13317-3 (2001). ### Claim 7 (depends on 1) Composition according to claim 1, wherein the composition further comprises a thermoplastic elastomer. ### Claim 8 (depends on 7) Composition according to claim 7, wherein the thermoplastic elastomer is present in an amount of ≥2.0 and ≤20.0% by weight compared to the total weight of the composition. ### Claim 9 (depends on 7) Composition according to claim 7, wherein the thermoplastic elastomer comprises a thermoplastic polyolefin elastomer. ### Claim 10 (depends on 1) Composition according to claim 1, wherein the ethylene polymer has a molecular weight distribution as determined according to ASTM D-6474 (2012) of ≥10 and ≤40. ### Claim 11 (depends on 1) Composition according to claim 1, wherein the composition has: an Izod impact strength measured according to ISO 180/A (2000) at a temperature of 0° C. of ≥8.5 kJ/m2; an Izod impact strength measured according to ISO 180/A (2000) at a temperature of −30° C. of ≥4.0 kJ/m2; an Izod impact strength measured according to ISO 180/A (2000) at a temperature of 23° C. of ≥30.0 kJ/m2; and a gloss value as measured according to ISO 2813 (2014) at an angle of 20° of ≤30.0 GU. ### Claim 12 (depends on 1) Composition according to claim 1, wherein the flexural modulus as measured according to ISO 178 (2010) method A is ≥1400 MPa. ### Claim 13 (depends on 1) An automotive interior part comprising the composition of claim 1. ### Claim 14 (depends on 1) Article, comprising a composition according to claim 1. ### Claim 15 Automotive interior part comprising a composition having: a flexural modulus as measured according to ISO 178 (2010) method A of ≥1700 MPa; an Izod impact strength measured according to ISO 180/A (2000) at a temperature of 23° C. of ≥45.0 kJ/m2; an Izod impact strength measured according to ISO 180/A (2000) at a temperature of −30° C. of ≥6.0 kJ/m2; a fraction of samples showing an impact failure in one of the categories YD or YS upon puncture impact testing according to ISO 6603-2 (2000) at 23° C. of ≥98%; and a fraction of samples showing an impact failure in one of the categories YD or YS upon puncture impact testing according to ISO 6603-2 (2000) at −30° C. of ≥80%. ### Claim 16 (depends on 1) Composition according to claim 1, wherein the composition has a gloss value of ≤30.0 GU as measured according to ISO 2813 (2014) at an angle of 20°. ### Claim 17 (depends on 1) Composition according to claim 1, wherein the ethylene polymer has a density as measured according to ISO 1183-1 (2012), method A of ≤945 kg/m3.