# US 12,600,845 B2 · Propylene polymer composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,600,845 B2 - Document ID: US12600845B2 - Status: Granted - Kind: B2 - Application number: 17/911,938 - Filed: 2021-03-08 - Published: 2023-05-18 - Granted: 2026-04-14 - Earliest claimed: 2020-03-30 - Assignees: Basell Poliolefine Italia S.r.l. - Applicants: Basell Poliolefine Italia S.R.L. - Inventors: Davide Tartari - Web page: https://patentgrep.com/patent/US12600845B2 ## CPC - C08F 10/06: Propene - C08L 23/12: Polypropene - C08L 2203/30: used for thermoforming - C08L 2205/025: containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure - C08L 2207/02: Heterophasic composition - C08L 2308/00: Chemical blending or stepwise polymerisation process with the same catalyst - C08L 2314/02: Ziegler natta catalyst - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract A polypropylene composition made from or containing: A) From 96 wt % to 80 wt %; of a propylene homopolymer having a fraction insoluble in xylene at 25° C. greater than 90 wt %, based upon the total weight of the propylene homopolymer; and a melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg between 80.0 g/10 min and 300.0 g/10 min; and B) From 4 wt % to 20 wt %; of a propylene ethylene copolymer having an ethylene derived units content ranging from 18 wt % to 38 wt %, based upon the total weight of the propylene ethylene copolymer; wherein the polypropylene composition having: a melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, between 80.0 g/10 min and 150.0 g/10 min; the sum of the amounts of A) and B) being 100 wt %. ## Claims ### Claim 1 A polypropylene composition comprising: A) from 80 wt % to 96 wt %, of a propylene homopolymer, based upon the total weight of the polypropylene composition, having a fraction insoluble in xylene at 25° C. greater than 90 wt %, based upon the total weight of the propylene homopolymer; and a melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg between 80.0 g/10 min and 300.0 g/10 min; and B) From 4 wt % to 20 wt %; from 4 wt % to 20 wt %, of a propylene ethylene copolymer, based upon the total weight of the polypropylene composition, having an ethylene derived units content ranging from 18 wt % to 38 wt %, based upon the total weight of the propylene ethylene copolymer; wherein the polypropylene composition has: i) a xylene soluble fraction at 25° C. ranging from 5 wt % to 13.0 wt %, based upon the total weight of the polypropylene composition; ii) an ethylene derived units content on the fraction insoluble in xylene at 25° C. ranging from 0.5 wt % to 3.5 wt %; iii an ethylene derived units content on the fraction soluble in xylene at 25° C. ranging from 17.2 wt % to 27.0 wt %; iv) the 13C NMR sequences PPE of the composition ranging from 3.50 mol % to 5.65 mol % and the 13C NMR sequences PEE measured on the fraction soluble in xylene at 25° C. ranging from 7.85 mol % to 11.00 mol %; (v) a melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, between 80.0 g/10 min and 150.0 g/10 min; the sum of the amounts of A) and B) being 100 wt %; and (vi) an intrinsic viscosity measured on the fraction soluble in xylene at 25° C. ranging from 0.9 to 2.3 dl/g. ### Claim 2 (depends on 1) The polypropylene composition according to claim 1, wherein the propylene composition comprises from 85 wt % to 95 wt % of component A), based upon the total weight of the polypropylene composition, and from 5 wt % to 15 wt % of component B), based upon the total weight of the polypropylene composition. ### Claim 3 (depends on 1) The polypropylene composition according to claim 1, wherein the xylene soluble fraction at 25° C. ranges from 6 wt % to 12 wt %, based upon the total weight of the polypropylene composition. ### Claim 4 (depends on 1) The polypropylene composition according to claim 1, wherein, in component A), the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg is between 100.0 g/10 min and 250.0 g/10 min. ### Claim 5 (depends on 1) The polypropylene composition according to claim 1, wherein, in component B), the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranges from 90.0 g/10 min and 130.0 g/10 min. ### Claim 6 (depends on 1) The polypropylene composition according to claim 1, wherein the ethylene derived units content on the fraction insoluble in xylene at 25° C. ranges from 0.8 wt % to 2.5 wt %. ### Claim 7 (depends on 1) The polypropylene composition according to claim 1, wherein the ethylene derived units content on the fraction soluble in xylene at 25° C. ranges from 17.8 wt % to 21.3 wt %. ### Claim 8 (depends on 1) The polypropylene composition according to claim 1, wherein the 13C NMR sequences PPE range from 3.80 mol % to 5.00 mol % and the 13C NMR sequences PEE measured on the fraction soluble in xylene at 25° C. range from 8.00 mol % to 10.80 mol %. ### Claim 9 (depends on 1) The polypropylene composition according to claim 1, wherein the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg is between 90.0 g/10 min and 130.0 g/10 min. ### Claim 10 (depends on 1) The polypropylene composition according to claim 1, wherein the propylene composition comprises from 93 wt % to 87 wt % of component A), based upon the total weight of the polypropylene composition, and from 7 wt % to 13 wt % of component B), based upon the total weight of the polypropylene composition. ### Claim 11 (depends on 1) The polypropylene composition according to claim 1, wherein the xylene soluble fraction at 25° C. ranges from 7 wt % to 11 wt %, based upon the total weight of the polypropylene composition. ### Claim 12 (depends on 1) The polypropylene composition according to claim 1, wherein, in component A), the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg is between 150.0 g/10 min and 220.0 g/10 min. ### Claim 13 (depends on 1) The polypropylene composition according to claim 1, wherein, in component B), the melt flow rate, MFR, measured according to ISO 1133 at 230° C. with a load of 2.16 kg, ranges from 95.0 g/10 min and 120.0 g/10 min. ### Claim 14 (depends on 1) The polypropylene composition according to claim 1, wherein the intrinsic viscosity measured on the fraction soluble in xylene at 25° C. ranges from 1.1 to 2.0 dl/g. ### Claim 15 (depends on 1) An injection molded article comprising the propylene composition according to claim 1.