# US 12,023,899 B2 · Packaging laminate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,023,899 B2 - Document ID: US12023899B2 - Status: Granted - Kind: B2 - Application number: 18/100,077 - Filed: 2023-01-23 - Published: 2023-05-18 - Granted: 2024-07-02 - Earliest claimed: 2016-02-24 - Assignees: BMSI, Inc. - Applicants: BMSI, Inc. - Inventors: Lee Phillips Gilbert - Web page: https://patentgrep.com/patent/US12023899B2 ## CPC - B32B 27/08: of synthetic resin - B32B 3/08: characterised by added members at particular parts {(layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18)} - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 27/18: characterised by the use of special additives - B32B 27/20: using fillers, pigments, thixotroping agents - B32B 27/205: {the fillers creating voids or cavities, e.g. by stretching} - B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers} - B32B 27/308: {comprising acrylic (co)polymers} - B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} - B32B 27/327: {comprising polyolefins obtained by a metallocene or single-site catalyst} - B32B 2250/03: 3 layers - B32B 2250/246: All polymers belonging to those covered by groups B32B27/32 and B32B27/30 - B32B 2264/104: Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles - B32B 2270/00: Resin or rubber layer containing a blend of at least two different polymers - B32B 2272/00: Resin or rubber layer comprising scrap, waste or recycling material - B32B 2307/31: Heat sealable - B32B 2307/41: Opaque - B32B 2307/514: Oriented - B32B 2307/54: Yield strength; Tensile strength - B32B 2307/5825: Tear resistant - B32B 2307/7244: Oxygen barrier - B32B 2307/7246: Water vapor barrier - B32B 2307/732: Dimensional properties - B32B 2307/744: Non-slip, anti-slip - B32B 2307/748: Releasability - B32B 2307/75: Printability - B32B 2439/40: Closed containers - B32B 2439/70: Food packaging - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract Disclosed herein are compositions and methods related to a packaging laminate comprising: a first polymeric layer comprising a polypropylene copolymer or a high density polyethylene (HDPE) resin; and a second polymeric layer comprising a high density polyethylene (HDPE) resin or linear low density polyethylene (LLDPE) resin with a coextruded ethyl vinyl alcohol (EVOH) compatibilizer. Also disclosed herein are packaging containers formed of the packaging laminates. ## Claims ### Claim 1 A packaging container, comprising: a container body formed of a packaging laminate, wherein the packaging laminate comprises: a first layer formed from a first composition consisting of a high density polyethylene (HDPE) resin and constituting an outer layer of the packaging laminate; and a second layer formed from a second composition comprising a polyethylene resin, and ethyl vinyl alcohol (EVOH) and a EVOH compatibilizer, and constituting an inner layer of the packaging laminate; and a one-way degassing valve removably attached to the container body, wherein the one-way degassing valve comprises a filter for releasing volatile gases present within the container body and is formed of a polymeric material comprising HDPE, LDPE, medium density polyethylene (MDPE), and combinations thereof. ### Claim 2 (depends on 1) The packaging container of claim 1, wherein the second composition further comprises plastomer. ### Claim 3 (depends on 1) The packaging container of claim 1, wherein the first layer has a thickness of about 0.005 MIL to about 2 MIL. ### Claim 4 (depends on 1) The packaging container of claim 1, wherein the second layer has a thickness of about 1 MIL to about 6 MIL. ### Claim 5 (depends on 4) The packaging container of claim 4, wherein the second layer has a thickness of about 2 MIL to about 6 MIL. ### Claim 6 (depends on 1) The packaging container of claim 1, wherein the one-way degassing valve is recyclable to the same extent as #2 HDPE or #4 LLDPE. ### Claim 7 (depends on 1) The packaging container of claim 1, wherein the second layer composition further comprises a HDPE resin. ### Claim 8 A packaging container, comprising: a container body formed of a packaging laminate, wherein the packaging laminate comprises: a first layer formed form a first composition consisting of a high density polyethylene (HDPE) resin and constituting an outer layer of the packaging laminate; and a second layer formed from a second composition comprising a linear low density polyethylene (LLDPE) resin, a low density polyethylene (LDPE) resin, ethyl vinyl alcohol (EVOH), and a compatibilizer and constituting an inner layer of the packaging laminate; and a recyclable degassing valve removably attached to the container body, wherein the recyclable degassing valve comprises a filter and is formed of a polymeric material comprising HDPE, LDPE, medium density polyethylene (MDPE), and combinations thereof. ### Claim 9 (depends on 8) The packaging container of claim 8, wherein the second composition further comprises a plastomer. ### Claim 10 (depends on 9) The packaging container of claim 9, wherein the plastomer is present in an amount of about 8 to 20 percent by weight of the second layer. ### Claim 11 (depends on 8) The packaging container of claim 8, wherein the EVOH compatibilizer is a coextruded ethyl vinyl alcohol (EVOH) compatibilizer. ### Claim 12 (depends on 8) The packaging container of claim 8, wherein the second composition further comprises a HDPE resin. ### Claim 13 (depends on 8) The packaging container of claim 8, wherein the first layer has a thickness of about 0.005 MIL to about 2 MIL and the second layer has a thickness of about 1 MIL to about 6 MIL. ### Claim 14 (depends on 8) The packaging container of claim 8, wherein the recyclable degassing valve is formed of a polymeric material comprising HDPE, LDPE, and MDPE. ### Claim 15 A packaging container, comprising: a container body formed of a packaging laminate, wherein the packaging laminate comprises: a print layer formed from a first composition and constituting an outer layer of the packaging laminate, wherein the first composition consists of a high density polyethylene (HDPE) resin; and a sealant layer formed from a second composition and constituting an inner layer of the packaging laminate, thereof, and wherein the second composition comprises a polyethylene resin, ethyl vinyl alcohol (EVOH), a compatibilizer, and a plastomer; and a recyclable degassing valve attached to the container body, wherein the recyclable degassing valve is formed of a polymeric material comprising at least one polyethylene resin. ### Claim 16 (depends on 15) The packaging container of claim 15, wherein the polymeric material comprises HDPE, LDPE, medium density polyethylene (MDPE), or combinations thereof. ### Claim 17 (depends on 15) The packaging container of claim 15, wherein the first layer has a thickness of about 0.005 MIL to about 2 MIL and the second layer has a thickness of about 2 MIL to about 6 MIL. ### Claim 18 (depends on 15) The packaging container of claim 15, wherein the degassing valve comprises a filter for releasing volatile gases present within the container body. ### Claim 19 (depends on 15) The packaging container of claim 15, wherein the packaging laminate has a first thickness, the polymeric material forming the degassing valve has a second thickness, and the second thickness is greater than the first thickness. ### Claim 20 (depends on 15) The packaging container of claim 15, wherein the compatibilizer and EVOH are present in the second composition in a 1:1 ratio.