# US 2020/0399452 A1 · High processability polyethylene compositions for injection molded articles > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0399452 A1 - Document ID: US20200399452A1 - Status: Published application - Kind: A1 - Application number: 16/329,940 - Filed: 2017-09-29 - Published: 2020-12-24 - Earliest claimed: 2016-09-30 - Assignees: Dow Global Technologies LLC - Applicants: Dow Global Technologies LLC - Inventors: David W. Kababik; Shannon E. Hunt; Rajen M. Patel - Web page: https://patentgrep.com/patent/US20200399452A1 ## CPC - C08L 23/06: Polyethylene - C08L 23/0815: {with aliphatic 1-olefins containing one carbon-to-carbon double bond} - 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 2207/062: HDPE - C08L 2207/066: LDPE (radical process) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract The present disclosure includes a polyethylene composition that may include a first polyethylene resin having a density of from 0.915 g/cc to 0.970 g/cc and a melt index (I2) from 10 g/10 min to 200 g/10 min, when measured according to ASTM D1238 at 190° C. and 2.16 kg load, and a second polyethylene resin having a density of from 0.860 g/cc to 0.930 g/cc and a melt index (I2) of from 400 g/10 min to 2000 g/10 min. The density of the first polyethylene resin may be greater than the density of the second polyethylene resin and the first polyethylene resin, the second polyethylene resin, or both are copolymers of ethylene monomer and at least one α-olefin comonomer, the α-olefin comonomer including C3-C12 α-olefins. Injection molded articles produced from the polyethylene composition are also disclosed herein. ## Claims ### Claim 1 A polyethylene composition comprising: a first polyethylene resin having a density of from 0.915 g/cc to 0.970 g/cc and a melt index (I2) from 10 g/10 min to 200 g/10 min, when measured according to ASTM D1238 at 190° C. and 2.16 kg load; and a second polyethylene resin having a density of from 0.860 g/cc to 0.930 g/cc and a melt index (I2) of from 400 g/10 min to 2000 g/10 min; wherein the density of the first polyethylene resin is greater than the density of the second polyethylene resin and the first polyethylene resin, the second polyethylene resin, or both are copolymers of ethylene monomer and at least one α-olefin comonomer, the α-olefin comonomer including C3-C12 α-olefins. ### Claim 2 (depends on 1) The polyethylene composition of claim 1, wherein the first polyethylene resin has a density from 0.920 g/cc to 0.960 g/cc. ### Claim 3 (depends on 1) The polyethylene composition of claim 1, wherein the second polyethylene resin has a density from 0.860 g/cc to 0.915 g/cc. ### Claim 4 (depends on 1) The polyethylene composition of claim 1, wherein the first polyethylene resin has a Molecular Weight Distribution (MWD) of from 2 to 5, wherein the MWD is defined as Mw/Mn with Mw being a weight average molecular weight and Mn being a number average molecular weight. ### Claim 5 (depends on 1) The polyethylene composition of claim 1, wherein the second polyethylene resin has a MWD of less than or equal to 3.5. ### Claim 6 (depends on 1) The polyethylene composition of claim 1, wherein the polyethylene composition comprises 2 wt. % to 20 wt. % of the second polyethylene resin. ### Claim 7 (depends on 1) The polyethylene composition of claim 1, wherein the polyethylene composition comprises 80 wt. % to 98 wt. % of the first polyethylene resin. ### Claim 8 (depends on 1) The polyethylene composition of claim 1, wherein the melt index (I2) of the first polyethylene resin is from 20 g/10 min to 180 g/10 min. ### Claim 9 (depends on 1) The polyethylene composition of claim 1, wherein the melt index (I2) of the second polyethylene resin is from 400 g/10 min to 1500 g/10 min. ### Claim 10 (depends on 1) An injection molded article produced from the polyethylene composition of claim 1. ### Claim 11 (depends on 10) The injection molded article of claim 10, wherein the injection molded article is a lid. ### Claim 12 (depends on 10) The injection molded article of claim 10, wherein a thickness of the injection molded article is from 10 mil to 40 mil. ### Claim 13 (depends on 4) The polyethylene composition of claim 4, wherein the second polyethylene resin has a MWD of less than or equal to 3.5. ### Claim 14 (depends on 4) The polyethylene composition of claim 4, wherein the polyethylene composition comprises 2 wt. % to 20 wt. % of the second polyethylene resin. ### Claim 15 (depends on 4) The polyethylene composition of claim 4, wherein the polyethylene composition comprises 80 wt. % to 98 wt. % of the first polyethylene resin. ### Claim 16 (depends on 4) The polyethylene composition of claim 4, wherein the melt index (I2) of the first polyethylene resin is from 20 g/10 min to 180 g/10 min. ### Claim 17 (depends on 4) The polyethylene composition of claim 4, wherein the melt index (I2) of the second polyethylene resin is from 400 g/10 min to 1500 g/10 min. ### Claim 18 (depends on 5) The polyethylene composition of claim 5, wherein the polyethylene composition comprises 2 wt. % to 20 wt. % of the second polyethylene resin. ### Claim 19 (depends on 5) The polyethylene composition of claim 5, wherein the polyethylene composition comprises 80 wt. % to 98 wt. % of the first polyethylene resin. ### Claim 20 (depends on 5) The polyethylene composition of claim 5, wherein the melt index (I2) of the first polyethylene resin is from 20 g/10 min to 180 g/10 min.