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US 11,298,922 B2Granted
Packaging laminate
AssigneeBMSI, Inc.
InventorLee Phillips Gilbert
Life of this patent
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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.
Claims19
A packaging container, comprising:
- a container body formed of a packaging laminate, wherein the packaging laminate comprises:
- a first layer, constituting an outer layer of the packaging laminate, comprising a high density polyethylene (HDPE) resin, wherein the first layer comprises a first side and a second side, and wherein the second side of the first layer comprises reverse printing;
- a second layer adjacent the second side of the first layer, constituting an inner layer of the packaging laminate, comprising a linear low density polyethylene (LLDPE) resin with a coextruded ethyl vinyl alcohol (EVOH) film barrier, and a metallocene catalyst present in an amount of about 5 to 33 percent by weight of the second layer;
- and
- a degassing valve removably attached to the container body, wherein the degassing valve comprises HDPE, and
- wherein the first layer has a thickness of about 0.5 MTh to about 1.5 MTh and the second layer has a thickness of about 2 MTh to about 5 MIL.
3 more elements
A packaging container, comprising:
- a container body formed of a packaging laminate, wherein the packaging laminate comprises:
- a print layer, constituting an outer layer of the packaging laminate, comprising a high density polyethylene (HDPE) resin, wherein the print layer comprises a first side and second side, and wherein the second side comprises reverse printing,
- a core layer adjacent the second side of the print layer, constituting an intermediate layer of the packaging laminate, comprising a HDPE resin, a linear low density polyethylene (LLDPE) resin, a low density polyethylene (LDPE) resin, or combinations thereof, and
- a sealant layer, constituting an inner layer of the packaging laminate, comprising a LLDPE resin with a coextruded ethyl vinyl alcohol (EVOH) film barrier, EVOH compatibilizer, and a catalyst present in an amount of about 5 to 33 percent by weight of the sealant layer, and
- a degassing valve removably attached to a wall of the container body, and
- wherein the print layer has a thickness of about 0.8 MTh to about 2.5 MIL, the sealant layer has a thickness of about 2 MTh to about 4 MIL, and the core layer has a thickness of about 0.4 MTh to about 4 MTh.
3 more elements
A packaging container, comprising:
- a container body formed of a packaging laminate, wherein the packaging laminate comprises:
- an outer layer comprising a high density polyethylene (HDPE) resin, wherein the outer layer comprises a first side and a second side, and wherein the second side comprises reverse printing;
- an intermediate layer adjacent the second side of the outer layer comprising a HDPE resin, a linear low density polyethylene (LLDPE) resin, a low density polyethylene (LDPE) resin, or combinations thereof;
- and
- a sealant layer, constituting an inner layer of the packaging laminate, comprising a LLDPE resin with a compatibilizer, ethyl vinyl alcohol (EVOH), and a catalyst present in an amount of about 5 to 33 percent by weight of the sealant layer, wherein the compatibilizer and EVOH are present in a 1:1 ratio, and
- a degassing valve removably attached to the container body, wherein the degassing valve comprises HDPE,
- wherein the outer layer has a thickness of about 0.8 MTh to about 1.25 MTh, the sealant layer has a thickness of about 2 MTh to about 3.5 MTh, and the intermediate layer has a thickness of about 1 MTh to about 3 MTh.
4 more elements
Dependencies are inferred from the claim text.