Patents Assigned to Mayr-Melnhof Karton AG
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Patent number: 11866235Abstract: A blank for producing a three-dimensional structure, from paper, cardboard, or plastic, includes at least three lateral surfaces and at least one bottom and/or top tab for forming the three-dimensional structure in a folded state of the blank. At least two of the lateral surfaces and/or at least one of the lateral surfaces having the bottom and/or cover tab being connected to one another by means of at least one mechanically produced creasing line. The creasing line is produced without ablation or other removal of material from the blank, at least one groove being produced by means of a laser within at least one of the lateral surfaces connected by means of the creasing line. The groove being configured to run at an angle to the creasing line and impinging on or intersecting the creasing line. A three-dimensional structure and a folding box produced from the blank are also disclosed.Type: GrantFiled: August 2, 2018Date of Patent: January 9, 2024Assignee: MAYR-MELNHOF KARTON AGInventors: Uwe Theis, Harman Vorenkamp
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Patent number: 11225352Abstract: The invention relates to a packaging made from cardboard, paper or similar, including a front wall and a rear wall, respectively at least one lateral wall connecting the front and rear walls and designed to form respective lateral sides of the packaging. The packaging is designed as a prismatic body along a longitudinal axis, and a base construction includes at least one base closure coupled to the front or rear wall for closing the base of the packaging. A cover construction includes at least one cover closure coupled to the front and rear walls for closing the cover of the packaging.Type: GrantFiled: April 28, 2017Date of Patent: January 18, 2022Assignee: MAYR-MELNHOF KARTON AGInventor: Timothy John Bourne
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Patent number: 11203698Abstract: The invention relates to a coated packaging material that has a substrate having a base material of cellulose, an outer side to be faced away from the packaging item as well as an inner side to be faced towards the packaging item. The inner side of the substrate carries at least one layer of an aqueous composition, which includes at least polyvinyl alcohol and/or at least one polyvinyl alcohol copolymer as well as a cross-linking agent, wherein the aqueous composition has at most 40% by wt. of polyvinyl alcohol and/or polyvinyl alcohol copolymer and a total solid content of at most 55% by wt. The layer and cross-linking the polyvinyl alcohol and/or the polyvinyl alcohol copolymer is dried with the aid of the cross-linking agent with formation of a barrier layer for hydrophobic compounds are performed.Type: GrantFiled: September 7, 2018Date of Patent: December 21, 2021Assignee: Mayr-Melnhof Karton AGInventors: Michael Zischka, Julia Spanring, Martin Reischl
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Patent number: 11084620Abstract: A packaging is disclosed that is made from cardboard, paper or similar, and includes a base wall and a cover wall, at least one front wall and one rear wall connecting the base wall and the cover wall in order to form lateral sides of the packaging. The packaging is designed as a prismatic body along a longitudinal axis extending parallel to the base wall and cover wall, and at least one lateral closure coupled to the base wall and/or the cover wall for laterally closing the packaging. At least one lateral closure is designed in such a way that, in a closed position, it rests at least in regions at least on one of the front walls or real walls coupled to the base wall and cover wall and protrudes at least regionally over these. The disclosure also relates to a blank for producing such a packaging.Type: GrantFiled: April 28, 2017Date of Patent: August 10, 2021Assignee: MAYR-MELNHOF KARTON AGInventor: Timothy John Bourne
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Patent number: 11084618Abstract: A packaging is disclosed that is made from cardboard, paper or similar, and includes a base wall and a cover wall, respectively at least one front wall and one rear wall connecting the base wall and the cover wall in order to form lateral sides of the packaging. The packaging is designed as a prismatic body along a longitudinal axis extending parallel to the base wall and cover wall, and at least one dust flap coupled to one end of at least one front wall or rear wall). The dust flap is designed in such a way that, in a closed position, it rests at least in regions on one of the front and rear walls to which it is not coupled, and/or on the base wall and/or the cover wall and protrudes at least regionally over these. The disclosure also relates to a blank for producing such a packaging.Type: GrantFiled: April 28, 2017Date of Patent: August 10, 2021Assignee: MAYR-MELNHOF KARTON AGInventor: Timothy John Bourne
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Patent number: 10654253Abstract: The invention relates to a multi-layer cardboard material (10), comprising at least one first fibrous-material layer (12), which has a cellulose-containing base material, and at least one second fibrous-material layer (14) comprising a mixture of cellulose-containing material and fine material particles, wherein a material of origin for the fine material particles is coco peat and the fine material particles have a particle size <0.5 mm, in particular <0.3 mm. The invention further relates to a method for producing a multi-layer cardboard material (10), in particular a multi-layer cardboard web, comprising at least one first and one second fibrous-material layer (12, 14), and the use of a fibrous-material layer comprising a mixture of cellulose-containing material and fine material particles.Type: GrantFiled: July 15, 2016Date of Patent: May 19, 2020Assignee: MAYR-MELNHOF KARTON AGInventors: Michael Zischka, Mathias Magin
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Publication number: 20190002725Abstract: The invention relates to a coated packaging material that has a substrate having a base material of cellulose, an outer side to be faced away from the packaging item as well as an inner side to be faced towards the packaging item. The inner side of the substrate carries at least one layer of an aqueous composition, which includes at least polyvinyl alcohol and/or at least one polyvinyl alcohol copolymer as well as a cross-linking agent, wherein the aqueous composition has at most 40% by wt. of polyvinyl alcohol and/or polyvinyl alcohol copolymer and a total solid content of at most 55% by wt. The layer and cross-linking the polyvinyl alcohol and/or the polyvinyl alcohol copolymer is dried with the aid of the cross-linking agent with formation of a barrier layer for hydrophobic compounds are performed.Type: ApplicationFiled: September 7, 2018Publication date: January 3, 2019Applicant: Mayr-Melnhof Karton AGInventors: Michael Zischka, Julia Spanring, Martin Reischl
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Patent number: 10100215Abstract: The invention relates to a method for producing a coated packaging material, in which at least the steps of a) providing a substrate having a base material of cellulose, an outer side to be faced away from the packaging item as well as an inner side to be faced towards the packaging item, b) coating at least the inner side of the substrate with at least one layer of an aqueous composition, which includes at least polyvinyl alcohol and/or at least one polyvinyl alcohol copolymer as well as a cross-linking agent.Type: GrantFiled: December 6, 2013Date of Patent: October 16, 2018Assignee: MAYR-MELNHOF KARTON AGInventors: Michael Zischka, Julia Spanring, Martin Reischl
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Patent number: 10040614Abstract: The invention relates to a method for producing a coated packaging material (10), wherein at least the following steps are carried out: a) providing a substrate (12), which has a base material (14) made of cellulose, an outside (16) to face away from a good to be packaged, and an inside (18) to face the good to be packaged; b) coating the inside (18) of the substrate with at least one layer of an aqueous composition, which comprises at least polyvinyl alcohol and a cross-linking agent and has a solid content of at most 25 wt %; and c) drying the layer and cross-linking the polyvinyl alcohol by means of the cross-linking agent in order to form a barrier layer (22a, 22b) for hydrophobic compounds. The invention further relates to a packaging material (10) having at least one barrier layer (22a, 22b) for hydrophobic compounds.Type: GrantFiled: June 8, 2012Date of Patent: August 7, 2018Assignee: MAYR-MELNHOF KARTON AGInventors: Michael Zischka, Julia Spanring, Martin Reischl
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Patent number: 9987829Abstract: The invention relates to a method for producing a core card (20) with at least the steps of a) providing a reprocessed fibrous mixture having at least the following properties: the Brecht-Holl fine fraction is at most 50% by weight; the Brecht-Holl long fiber fraction is at least 10% by weight; the Brecht-Holl short fiber fraction is at most 60% by weight; and the ISO 1762 ash fraction is at most 20% by weight, b) preparing at least one fibrous suspension, c) processing the at least one fibrous suspension by carrying out at least one de-ashing of the fibrous suspension until the ash fraction of the dry component of the fibrous suspension is at most 15% by weight, and by adding at least one additive to the at least one fibrous suspension d) producing the laminar system from the at least one fibrous suspension.Type: GrantFiled: March 27, 2014Date of Patent: June 5, 2018Assignee: MAYR-MELNHOF KARTON AGInventors: Zakaria Announ, Martin Muhlhauser, Kurt Wannemacher, Christian Neumann
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Publication number: 20140113152Abstract: The invention relates to a method for producing a coated packaging material (10), wherein at least the following steps are carried out: a) providing a substrate (12), which has a base material (14) made of cellulose, an outside (16) to face away from a good to be packaged, and an inside (18) to face the good to be packaged; b) coating the inside (18) of the substrate with at least one layer of an aqueous composition, which comprises at least polyvinyl alcohol and a cross-linking agent and has a solid content of at most 25 wt %; and c) drying the layer and cross-linking the polyvinyl alcohol by means of the cross-linking agent in order to form a barrier layer (22a, 22b) for hydrophobic compounds. The invention further relates to a packaging material (10) having at least one barrier layer (22a, 22b) for hydrophobic compounds.Type: ApplicationFiled: June 8, 2012Publication date: April 24, 2014Applicant: Mayr-Melnhof Karton AGInventors: Michael Zischka, Julia Spanring, Martin Reischl