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公开(公告)号：US20230114239A1
公开(公告)日：2023-04-13
申请号：US17904591
申请日：2020-11-27
发明人： Achim Grefenstein , Dudley Jones , Stefan Büttner
摘要： A recycling-friendly, easily producible paper packaging laminate with a high barrier against water vapor, oxygen and/or aromas, wherein a barrier film includes at least one substrate layer, a joining layer, and a barrier layer, wherein the joining layer is arranged between the substrate layer and the barrier layer, in that the substrate layer consists predominantly of polyethylene or polypropylene with a polyethylene content or a polypropylene content of at least 60 wt. % of the substrate layer, in that at least the at least one substrate layer of the barrier film is stretched, in that the content of the paper layer is between 50 wt. % and 90 wt. % of the paper packaging laminate, and in that the barrier film is joined to the paper layer by a hydrophilic adhesive layer, wherein the side of the paper layer facing the barrier film is uncoated.
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公开(公告)号：US20210354894A1
公开(公告)日：2021-11-18
申请号：US17287653
申请日：2018-11-15
发明人： Thami Lamtigui , Achim Grefenstein
IPC分类号： B65D65/40 , B29C48/00 , B29C48/08 , B29C48/21 , B32B27/08 , B32B27/20 , B32B27/32 , B32B37/14
摘要： A recyclable, easily tearable packaging laminate having a good barrier effect and low density, including a first laminate layer and a second laminate layer. The first laminate layer is a co-extruded, stretched composite consisting of a cavitated substrate layer having 5-30 wt. % cavitating agent and a PE proportion of at least 60 wt. %, a connecting layer and a barrier layer consisting of a barrier polymer, preferably polyamide or ethylene vinyl alcohol copolymer, with a thickness of at most 20% of the overall thickness of the first laminate layer. The connecting layer is arranged between the substrate layer and the barrier layer, and the first laminate layer is connected by its barrier layer to the second laminate layer.
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3.发明公开公开(公告)号：US20240253335A1
公开(公告)日：2024-08-01
申请号：US18566512
申请日：2022-05-31
发明人： Frank Eger , Andreas Fischer , Werner Geitner , Tobias Stein , Achim Grefenstein , Matthias Scheck
CPC分类号： B32B27/10 , B32B7/12 , B32B37/12 , B65D75/26 , B32B2250/02 , B32B2255/10 , B32B2255/205 , B32B2255/26 , B32B2307/516 , B32B2307/518 , B32B2307/582 , B32B2307/718 , B32B2307/7244 , B32B2307/7246 , B32B2307/7376 , B32B2317/12 , B32B2439/06 , B32B2439/70
摘要： A packaging laminate includes a carrier layer and a barrier film, wherein the carrier layer consists of paper with a grammage of 40 to 120 g/m2, wherein the barrier film is connected with the carrier layer via a connecting layer, wherein a plastics film stretched in at least one stretching direction is provided as the barrier film, wherein the barrier film has a layer thickness of 1 to 10 μm, preferably less than 5 μm and very preferably less than 3 μm, and wherein the elongation at break of the barrier film in the at least one stretching direction is less than or equal to 180%, preferably less than or equal to 130%.
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公开(公告)号：US11235562B2
公开(公告)日：2022-02-01
申请号：US17270962
申请日：2019-10-11
发明人： Achim Grefenstein , Pragnesh Shah , Saket Jha
IPC分类号： B32B27/08 , B29C48/18 , B32B27/18 , B32B27/30 , B32B27/32 , B32B27/34 , B32B38/06 , C08L23/06 , C08L23/14 , C08L53/00 , B32B7/12
摘要： The present teaching concerns a recyclable co-extruded PE packaging film with a first laminate layer of at least 60 vol % HDPE and a second laminate layer of a hetero-phase polypropylene block copolymer with a polyethylene content of 5-30 wt. % and a melting point higher than 155° C., preferably higher than 160°, the thickness of the second laminate layer being less than 5 μm.
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公开(公告)号：US20210252839A1
公开(公告)日：2021-08-19
申请号：US17270962
申请日：2019-10-11
发明人： Achim Grefenstein , Pragnesh Shah , Saket Jha
IPC分类号： B32B27/08 , C08L23/06 , C08L23/14 , B29C48/18 , B32B27/18 , B32B27/32 , C08L53/00 , B32B27/30 , B32B27/34 , B32B38/06
摘要： The present teaching concerns a recyclable co-extruded PE packaging film with a first laminate layer of at least 60 vol % HDPE and a second laminate layer of a hetero-phase polypropylene block copolymer with a polyethylene content of 5-30 wt. % and a melting point higher than 155° C., preferably higher than 160°, the thickness of the second laminate layer being less than 5 μm.
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公开(公告)号：US10751979B2
公开(公告)日：2020-08-25
申请号：US16316185
申请日：2016-07-08
摘要： The present teaching describes a recyclable polyethylene film of at least 80% polyethylene material and max. 20% compatible polyolefin material. The polyethylene film is less than 40 μm and has a central layer of linear low-density polyethylene (LLDPE) and/or metallocene linear low-density polyethylene (mLLDPE) and two outer layers made of high-density polyethylene (HDPE) and bonded to the central layer and surrounding a central layer. The HDPE content of the polyethylene film constitutes at least 60 vol %, preferably at least 70 vol %, especially preferably at least 80 vol. The two outer layers together are at least three times as thick as the central layer, preferably at least four times as thick. The polyethylene film is stretched in at least one direction.
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公开(公告)号：US20230130087A1
公开(公告)日：2023-04-27
申请号：US17914886
申请日：2021-05-06
IPC分类号： B65D65/42 , B05D7/00 , D21H27/10 , D21H19/82 , D21H19/84 , D21H19/32 , D21H19/02 , D21H19/12 , D21H19/18 , D21H21/16
摘要： The patent application relates to a paper-based packaging material with a carrier paper and a first coating arranged indirectly on at least one side of the carrier paper, wherein the first coating is a barrier layer and has an increased diffusion resistance to at least one substance selected from a group comprising fluid, gas, air, oxygen, carbon dioxide, nitrogen, inert gas, odorant, aromatic substance, water vapor, liquid, water, water-fat emulsion, fat, oil, mineral oil, and edible oil, odorant, flavorant, water vapor, liquid, water, water-fat emulsion, grease, oil, mineral oil, and edible oil individually or in combination, wherein the first coating is disposed between the carrier paper and a visually perceptible surface coating and directly contacts the surface coating. Furthermore, the invention relates to a package made of such a paper-based packaging material and a method of manufacturing the same.
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公开(公告)号：US20210237949A1
公开(公告)日：2021-08-05
申请号：US17269453
申请日：2018-08-23
发明人： Achim Grefenstein , Markus Kick , Thami Lamtigui
IPC分类号： B65D65/40 , B32B7/12 , B32B27/08 , B32B27/20 , B32B27/30 , B32B27/32 , B32B27/34 , B32B38/00 , B29C48/00 , B29C48/21 , B29C55/00 , B29C55/12
摘要： The present teaching relates to a recyclable, easily tearable packaging laminate having a good barrier effect, including a first laminate layer and a second laminate layer. The first laminate layer is a co-extruded and bidirectionally stretched composite consisting of a substrate layer having an HDPE content of at least 60 vol. %, a connecting layer and a barrier layer consisting of a barrier polymer, preferably polyamide or ethylene vinyl alcohol copolymer, having a thickness of maximum 20% of the total thickness of the first laminate layer. The connecting layer is arranged between the substrate layer and the barrier layer, and the first laminate layer is connected, at its barrier layer, to the second laminate layer.
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公开(公告)号：US10766236B2
公开(公告)日：2020-09-08
申请号：US16080935
申请日：2016-03-14
IPC分类号： B65D41/02 , B32B27/32 , B32B3/30 , C08J5/18 , C09J7/30 , B32B7/12 , B32B27/08 , B65D75/26 , C09K3/10 , B65D51/00
摘要： In order to improve the sealing properties and the sliding properties of a sealing film, surface structures are provided on a first side of the sealing film, the greatest thickness of the sealing film being at least 10% greater than the smallest thickness of the sealing film and the greatest lateral extension of the surface structures being less than 500 μm. A slip additive is added to the sealing film in a maximum quantity that results in an S-value of less than 10,000, preferably less than 5,000, in order to achieve a COF relative to steel of dynamically less than 0.3, preferably less than 0.27, and statically less than 0.35, preferably less than 0.3, with the side comprising the surface structures, irrespective of an addition of an antiblock additive to the sealing film.
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