Patents Assigned to RKW SE
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Patent number: 12605921Abstract: A recyclable, cold-sealing packaging having at least a first film and a cold-sealing compound and a print. The film is formed from a largely unmixed polyolefin, is stretched monoaxially in the machine direction and has at least two layers. At least one layer has an inorganic filler to create cavities in the layer.Type: GrantFiled: February 17, 2023Date of Patent: April 21, 2026Assignee: RKW SEInventors: Leonhard Maier, Adrien Dembowski, Claudia Spicker, Luc Hermans, Frederic Wypelier, Konrad Noniewicz, Thomas Stroh, Claudia Bender
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Publication number: 20260077549Abstract: A liner (1) for a container for holding a granulate which has a blowing agent. The liner (1) has at least one polyamide layer (4) which is arranged between two ethylene copolymer layers (2).Type: ApplicationFiled: August 7, 2023Publication date: March 19, 2026Applicant: RKW SEInventors: Christian REINDL, Florian GLASEDONNER, Leonhard MAIER
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Publication number: 20260001303Abstract: A monoaxially stretched, transparent film for a recyclable laminate for packaging. The film comprises at least one outer layer and at least one inner layer. The at least one outer layer has a higher density than the at least one inner layer. The outer layer comprises a mixture of at least two polyethylenes of different densities, wherein the higher density polyethylene in at least one of the outer layers has a density of more than 0.94 g/cm3 and the lower density polyethylene in at least one of the outer layers has a density of less than 0.94 g/cm3.Type: ApplicationFiled: July 3, 2023Publication date: January 1, 2026Applicant: RKW SEInventors: Adrien DEMBOWSKI, Claudia SPICKER, Thomas TROH, Claudia BENDER, Frederic WYPELIER, Leonhard MAIER, Konrad NONIEWICZ
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Publication number: 20260001265Abstract: A multilayer, monoaxially stretched, recyclable film (1) for a laminate (7). The film (1) has outer layers (3) and at least one inner barrier layer (6), with a tie layer (5) arranged between each of these. At least one further, functional intermediate layer (4) is arranged between each of the outer layers (3) and the barrier layer (6).Type: ApplicationFiled: July 3, 2023Publication date: January 1, 2026Applicant: RKW SEInventors: Adrien Dembowski, Claudia SPICKER, Christoph SCHWEITZE, Marcus WAGEL, Florian GLASEDONNER, Luc HERMANS, Konrad NONIEWICZ, Leonhard MAIER, Thomas STROH, Claudia BENDER
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Patent number: 12433798Abstract: An elastic nappy element that includes an elastic layer (1) and outer layers (2, 3) made of a non-woven fabric. The nappy element has connecting regions (4, 8) for connecting the outer layers (2, 3) to the elastic layer (1). These connecting regions (4, 8) include zones (7, 9) in which a form-fitting bond of non-woven material and solidified material of the elastic layer (1) is formed.Type: GrantFiled: August 22, 2019Date of Patent: October 7, 2025Assignee: RKW SEInventors: Christoph Willing, Paul Waller, Michael Scherer
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Patent number: 12376999Abstract: An elastic diaper element that includes an elastic layer (1) and at least one layer (2) made of a nonwoven fabric. The element has connection portions (5) between the elastic layer (1) and the non-woven layer (2). The non-woven layer (2) is corrugated in the non-stretched state and has portions (6) that act as a reserve allowing stretching. The connection portions (5) include zones (8) in which there is a form-fitting bond of material of the layer (2) made of the nonwoven and solidified material of the elastic layer (1).Type: GrantFiled: January 22, 2020Date of Patent: August 5, 2025Assignee: RKW SEInventors: Christoph Willing, Paul Waller, Michael Scherer, Reinhard Epping
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Publication number: 20250170811Abstract: A recyclable laminate (1) for packaging with a sealing layer (2) and a first polyethylene film (11). The first polyethylene film (11) having at least two layers (6, 5, 3), wherein the first polyethylene film (11) is stretched in machine direction. At least one of the layers (6) has an inorganic filler to create cavities.Type: ApplicationFiled: February 17, 2023Publication date: May 29, 2025Applicant: RKW SEInventors: Leonhard MAIER, Adrien DEMBOWSKI, Claudia SPICKER, Luc HERMANS, Frederic WYPELIER, Konrad NONIEWICZ, Thomas STROH, Claudia BENDER, Christoph SCHWEITZER
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Publication number: 20250162300Abstract: A recyclable, cold-sealing packaging having at least a first film and a cold-sealing compound and a print. The film is formed from a largely unmixed polyolefin, is stretched monoaxially in the machine direction and has at least two layers. At least one layer has an inorganic filler to create cavities in the layer.Type: ApplicationFiled: February 17, 2023Publication date: May 22, 2025Applicant: RKW SEInventors: Leonhard Maier, Adrien DEMBOWSKI, Claudia SPICKER, Luc HERMANS, Frederic WYPELIER, Konrad NONIEWICZ, Thomas STROH, Claudia BENDER, Christoph SCHWEITZER
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Publication number: 20250010596Abstract: An arrangement with a film, having a barrier against pathogens, wherein the film has at least one monolithic layer (3) containing a hydrophilic polymer resin capable of absorbing and desorbing moisture, and at least two polyolefin layers with fillers, wherein the film is stretched, and the monolithic layer being arranged between the polyolefin layers (4).Type: ApplicationFiled: October 4, 2022Publication date: January 9, 2025Applicant: RKW SEInventors: Leonhard Maier, Michael SCHERER, Manuel PAUKNER
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Publication number: 20240390195Abstract: An elastic diaper element with an elastic layer and a layer of nonwoven, wherein the diaper element has connecting regions between the elastic layer and the layer of nonwoven. The diaper element has a first area and at least one further area in which the layer of nonwoven has different proportions of connecting regions in a surface-specific manner in order to ensure area-specific elasticity under load.Type: ApplicationFiled: July 13, 2022Publication date: November 28, 2024Applicant: RKW SEInventors: Christoph Willing, Robert KOPLIN, Reinhard EPPING
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Publication number: 20240315884Abstract: A polyolefinic seepage protection layer in hygiene products with at least one layer having cavities. The layer includes a first area and at least one further area. The first area has a higher volume fraction of cavities than the further area.Type: ApplicationFiled: June 9, 2022Publication date: September 26, 2024Applicant: RKW SEInventor: Leonhard MAIER
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Publication number: 20240299220Abstract: A hygiene article having an arrangement for peeling off a layer from an adhesive layer. The arrangement comprises a carrier layer and a separation layer. The carrier layer has at least one ?-nucleated, stretched, polyolefinic layer having a microporous structure for generating an opacity.Type: ApplicationFiled: May 5, 2022Publication date: September 12, 2024Applicant: RKW SEInventors: Michael Scherer, Leonhard MAIER, Manuel PAUKNER
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Patent number: 12049064Abstract: A laminate composite composed of at least two laminations (1, 7) and an imprint located between them (3). The lamination (7) includes at least two layers (4, 5, 6). One layer (5) includes a UV absorber to protect the imprint. This layer (5) is characterized by having a lower density than the other layers (4, 6). The other layers (4, 6) preferably have a density that is higher relative to the one layer (5) by a factor of 1.005, in particular by a factor of 1.01, preferably by a factor of 1.015.Type: GrantFiled: August 27, 2020Date of Patent: July 30, 2024Assignee: RKW SEInventors: Thomas Steffen, Lars Becker, Karl-Heinz Bartnig, Sascha Hirsch
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Patent number: 12023898Abstract: Multi-layer collation shrink film comprising a main layer based on a polyethylene mixture comprising 75 to 85 wt.-% low density polyethylene and 15 to 25 wt.-% high density polyethylene or linear low density polyethylene and a skin layer based on a polar ethylene copolymer with vinyl acetate or alkyl (meth)acrylate with a vinyl acetate or alkyl (meth)acrylate content of at least 15 wt.-% and containing 5000 to 20000 ppm silica and a slip agent, use of the film in multi-layer packaging films and method for packaging objects together with the multi-layer collation shrink film including printing the skin layer with a digital ink printing process before or after packaging the objects.Type: GrantFiled: January 21, 2019Date of Patent: July 2, 2024Assignee: RKW SEInventor: Hannu Kalevi Hirvi
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Publication number: 20240099910Abstract: A breathable, polyolefinic, filled, stretched film. The film has a water vapor transmission rate of at least 500 g/m2 in 24 h according to ASTM D6701-01. The water column of the film is more than 300 mm according to EDANA WSP 80.6. The film has an imprint which is bonded to the film via an adhesive. The film has at least one layer in which the adhesive is integrated.Type: ApplicationFiled: December 21, 2021Publication date: March 28, 2024Applicant: RKW SEInventors: Robert KOPLIN, Christoph MEIER, Dennis BECKER
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Publication number: 20240058180Abstract: An arrangement (4) for detecting liquid in a single-use hygiene article. The arrangement (4) includes a back sheet film (1) with a conductive print (2).Type: ApplicationFiled: March 8, 2022Publication date: February 22, 2024Applicant: RKW SEInventors: Robert KOPLIN, Florian BRANDMAIER, Michael SCHUHMANN, Veronica SCHAFSTALLER, Sarah JÄCKEL
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Patent number: 11780996Abstract: A breathable film having a specific ball-drop impact resistance of more than 100 mm per gram polymer per square meter. The film has a water vapor permeability of at least 1000 g/m2 in 24 hours. The elongation at break of the film in the machine direction is less than 200%.Type: GrantFiled: May 2, 2020Date of Patent: October 10, 2023Assignee: RKW SEInventors: Robert Koplin, Dennis Becker, Christoph Meier, Thomas Arlt
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Publication number: 20230241872Abstract: A packaging insert for the absorption of a liquid with a covering layer (1) for foods. The covering layer (1) has perforations (2) that allow the liquid to pass through. The covering layer (1) is connected to a storage area (4), wherein (4) connecting areas (3) are formed between the covering layer (1) and the storage area. The storage area (4) has a nonwoven content of more than 70 wt. %. The packaging insert shows a buoyancy in water for floating. The nonwoven is composed of a plastic that has a density of less than 0.99 g/cm3 and/or the covering is composed of a plastic that has a density of less than 0.99 g/cm3.Type: ApplicationFiled: November 4, 2021Publication date: August 3, 2023Applicant: RKW SEInventors: Reinhard EPPING, Ayhan SODO, Michael SCHERER
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Publication number: 20230146654Abstract: An elastic diaper element that includes an elastic layer (1) and at least one layer (2) made of a nonwoven. The elastic element has connection regions (5) between the elastic layer (1) and the non-woven layer (2). The connection regions (5) extend in a preferred direction. The non-woven layer (2) is wavy when the diaper element is in the unstretched condition in order to provide regions (6) as a reserve allowing stretching. The connection regions (5) have an oscillating shape along their extent.Type: ApplicationFiled: October 29, 2020Publication date: May 11, 2023Applicant: RKW SEInventor: Christoph WILLING
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Publication number: 20220410544Abstract: A laminate composite composed of at least two laminations (1, 7) and an imprint located between them (3). The lamination (7) includes at least two layers (4, 5, 6). One layer (5) includes a UV absorber to protect the imprint. This layer (5) is characterized by having a lower density than the other layers (4, 6). The other layers (4, 6) preferably have a density that is higher relative to the one layer (5) by a factor of 1.005, in particular by a factor of 1.01, preferably by a factor of 1.015.Type: ApplicationFiled: August 27, 2020Publication date: December 29, 2022Applicant: RKW SEInventors: Thomas STEFFEN, Lars BECKER, Karl-Heinz BARTNIG, Sascha HIRSCH