Patents by Inventor Rolf Krekel

Rolf Krekel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240059938
    Abstract: The present invention relates to a release liner, an adhesive article comprising the same, a process for producing the release liner, and a process for decorating an object using the adhesive article. According to an embodiment, the release liner comprises a carrier substrate (10), a thermoplastic polymer layer (20) applied on one side of the carrier substrate (10), and a release layer (30) applied on the thermoplastic polymer layer (20) on the side opposite to the carrier substrate (10). The thermoplastic polymer layer (20) and the release layer (30) include a network of ridges (25), which result in elevations of the surface of the release liner on the side of the release layer. The surface on the side of the release layer (30) has a roughness at least between the ridges (25), such that it has a plurality of pits (1, 2, 3). The average number of pits (1, 2, 3) per an area of 3.
    Type: Application
    Filed: November 1, 2023
    Publication date: February 22, 2024
    Applicant: Mondi AG
    Inventors: Helmut Schönfelder, Rolf Krekel, Wilhelm Munninger
  • Patent number: 11879081
    Abstract: The present invention inter alia relates to a release liner, which comprises according to an embodiment, a carrier substrate, a thermoplastic polymer layer applied on one side of the carrier substrate, and a release layer applied on the thermoplastic polymer layer on the side opposite to the carrier substrate. The thermoplastic polymer layer and the release layer include a network of ridges resulting in elevations of the surface of the release liner. The surface on the release layer side has a roughness at least between the ridges, such that it has a plurality of pits. The average number of pits per an area of 3.4 mm2 of the plan view of the release liner surface is at least 50. The pits extend at least to a level of 10.0 ?m above the deepest point of the deepest pit within said area.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: January 23, 2024
    Assignee: Mondi AG
    Inventors: Helmut Schönfelder, Rolf Krekel, Wilhelm Munninger
  • Publication number: 20210189194
    Abstract: The present invention relates to a release liner, an adhesive article comprising the same, a process for producing the release liner, and a process for decorating an object using the adhesive article. According to an embodiment, the release liner comprises a carrier substrate (10), a thermoplastic polymer layer (20) applied on one side of the carrier substrate (10), and a release layer (30) applied on the thermoplastic polymer layer (20) on the side opposite to the carrier substrate (10). The thermoplastic polymer layer (20) and the release layer (30) include a network of ridges (25), which result in elevations of the surface of the release liner on the side of the release layer. The surface on the side of the release layer (30) has a roughness at least between the ridges (25), such that it has a plurality of pits (1, 2, 3). The average number of pits (1, 2, 3) per an area of 3.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Applicant: Mondi AG
    Inventors: Helmut Schönfelder, Rolf Krekel, Wilhelm Munninger