Patents Assigned to RKW SE
  • Patent number: 12605921
    Abstract: 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: Grant
    Filed: February 17, 2023
    Date of Patent: April 21, 2026
    Assignee: RKW SE
    Inventors: Leonhard Maier, Adrien Dembowski, Claudia Spicker, Luc Hermans, Frederic Wypelier, Konrad Noniewicz, Thomas Stroh, Claudia Bender
  • Publication number: 20260077549
    Abstract: 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: Application
    Filed: August 7, 2023
    Publication date: March 19, 2026
    Applicant: RKW SE
    Inventors: Christian REINDL, Florian GLASEDONNER, Leonhard MAIER
  • Publication number: 20260001303
    Abstract: 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: Application
    Filed: July 3, 2023
    Publication date: January 1, 2026
    Applicant: RKW SE
    Inventors: Adrien DEMBOWSKI, Claudia SPICKER, Thomas TROH, Claudia BENDER, Frederic WYPELIER, Leonhard MAIER, Konrad NONIEWICZ
  • Publication number: 20260001265
    Abstract: 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: Application
    Filed: July 3, 2023
    Publication date: January 1, 2026
    Applicant: RKW SE
    Inventors: Adrien Dembowski, Claudia SPICKER, Christoph SCHWEITZE, Marcus WAGEL, Florian GLASEDONNER, Luc HERMANS, Konrad NONIEWICZ, Leonhard MAIER, Thomas STROH, Claudia BENDER
  • Patent number: 12433798
    Abstract: 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: Grant
    Filed: August 22, 2019
    Date of Patent: October 7, 2025
    Assignee: RKW SE
    Inventors: Christoph Willing, Paul Waller, Michael Scherer
  • Patent number: 12376999
    Abstract: 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: Grant
    Filed: January 22, 2020
    Date of Patent: August 5, 2025
    Assignee: RKW SE
    Inventors: Christoph Willing, Paul Waller, Michael Scherer, Reinhard Epping
  • Publication number: 20250170811
    Abstract: 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: Application
    Filed: February 17, 2023
    Publication date: May 29, 2025
    Applicant: RKW SE
    Inventors: Leonhard MAIER, Adrien DEMBOWSKI, Claudia SPICKER, Luc HERMANS, Frederic WYPELIER, Konrad NONIEWICZ, Thomas STROH, Claudia BENDER, Christoph SCHWEITZER
  • Publication number: 20250162300
    Abstract: 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: Application
    Filed: February 17, 2023
    Publication date: May 22, 2025
    Applicant: RKW SE
    Inventors: Leonhard Maier, Adrien DEMBOWSKI, Claudia SPICKER, Luc HERMANS, Frederic WYPELIER, Konrad NONIEWICZ, Thomas STROH, Claudia BENDER, Christoph SCHWEITZER
  • Publication number: 20250010596
    Abstract: 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: Application
    Filed: October 4, 2022
    Publication date: January 9, 2025
    Applicant: RKW SE
    Inventors: Leonhard Maier, Michael SCHERER, Manuel PAUKNER
  • Publication number: 20240390195
    Abstract: 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: Application
    Filed: July 13, 2022
    Publication date: November 28, 2024
    Applicant: RKW SE
    Inventors: Christoph Willing, Robert KOPLIN, Reinhard EPPING
  • Publication number: 20240315884
    Abstract: 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: Application
    Filed: June 9, 2022
    Publication date: September 26, 2024
    Applicant: RKW SE
    Inventor: Leonhard MAIER
  • Publication number: 20240299220
    Abstract: 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: Application
    Filed: May 5, 2022
    Publication date: September 12, 2024
    Applicant: RKW SE
    Inventors: Michael Scherer, Leonhard MAIER, Manuel PAUKNER
  • Patent number: 12049064
    Abstract: 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: Grant
    Filed: August 27, 2020
    Date of Patent: July 30, 2024
    Assignee: RKW SE
    Inventors: Thomas Steffen, Lars Becker, Karl-Heinz Bartnig, Sascha Hirsch
  • Patent number: 12023898
    Abstract: 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: Grant
    Filed: January 21, 2019
    Date of Patent: July 2, 2024
    Assignee: RKW SE
    Inventor: Hannu Kalevi Hirvi
  • Publication number: 20240099910
    Abstract: 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: Application
    Filed: December 21, 2021
    Publication date: March 28, 2024
    Applicant: RKW SE
    Inventors: Robert KOPLIN, Christoph MEIER, Dennis BECKER
  • Publication number: 20240058180
    Abstract: 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: Application
    Filed: March 8, 2022
    Publication date: February 22, 2024
    Applicant: RKW SE
    Inventors: Robert KOPLIN, Florian BRANDMAIER, Michael SCHUHMANN, Veronica SCHAFSTALLER, Sarah JÄCKEL
  • Patent number: 11780996
    Abstract: 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: Grant
    Filed: May 2, 2020
    Date of Patent: October 10, 2023
    Assignee: RKW SE
    Inventors: Robert Koplin, Dennis Becker, Christoph Meier, Thomas Arlt
  • Publication number: 20230241872
    Abstract: 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: Application
    Filed: November 4, 2021
    Publication date: August 3, 2023
    Applicant: RKW SE
    Inventors: Reinhard EPPING, Ayhan SODO, Michael SCHERER
  • Publication number: 20230146654
    Abstract: 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: Application
    Filed: October 29, 2020
    Publication date: May 11, 2023
    Applicant: RKW SE
    Inventor: Christoph WILLING
  • Publication number: 20220410544
    Abstract: 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: Application
    Filed: August 27, 2020
    Publication date: December 29, 2022
    Applicant: RKW SE
    Inventors: Thomas STEFFEN, Lars BECKER, Karl-Heinz BARTNIG, Sascha HIRSCH