Patents by Inventor Stephan Bunz

Stephan Bunz 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: 20190375909
    Abstract: Process for producing a pressure-sensitive adhesive comprising expanded microballoons, wherein the constituents for forming the adhesive are mixed in a first mixing assembly, the mixed adhesive is transferred into a second mixing assembly into which, at the same time, unexpanded microballoons are fed, the microballoons are expanded in the second mixing assembly or on exit from the second mixing assembly, the adhesive mixture with the expanded microballoons is shaped to a layer in a shaping assembly in which expanded microballoons which have broken through the surface are pressed into the layer surface and the layer of adhesive mixture together with the expanded microballoons are optionally applied to a weblike backing material.
    Type: Application
    Filed: July 31, 2019
    Publication date: December 12, 2019
    Applicant: tesa SE
    Inventors: Franziska CZERWONATIS, Axel BURMEISTER, Sabine BHANDARI, Christian KREFT, Stephan BÜNZ
  • Patent number: 9499726
    Abstract: A pressure-sensitive adhesive consisting of a homogeneous mixture of at least one natural rubber component and at least one polyacrylate component displays significantly improved properties in cohesion and aging and weathering resistance compared to the individual components. Particularly good properties are achieved when the adhesive contains x % by weight of at least one natural rubber component, y % by weight of at least one polyacrylate component, v % by weight of at least one adhesive resin component and w % by weight of additives, where 10?×x?80, 10?y<95, 0?v?50, 0?w?10 and x+y+v+w=100. A single- or double-sided adhesive tape consisting of at least one support and at least one layer of such a pressure-sensitive adhesive therefore likewise has good cohesion and aging resistance properties.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: November 22, 2016
    Assignee: tesa SE
    Inventors: Franziska Zmarsly, Sabine Thormeier, Christian Kreft, Axel Burmeister, Stephan Bünz
  • Publication number: 20160083549
    Abstract: Process for producing a pressure-sensitive adhesive comprising expanded microballoons, wherein the constituients for forming the adhesive are mixed in a first mixing assembly, the mixed adhesive is transferred into a second mixing assembly into which, at the same time, unexpanded microballoons are fed, the microballoons are expanded in the second mixing assembly or on exit from the second mixing assembly, the adhesive mixture with the expanded microballoons is shaped to a layer in a shaping assembly in which expanded microballoons which have broken through the surface are pressed into the layer surface and the layer of adhesive mixture together with the expanded microballoons are optionally applied to a weblike backing material.
    Type: Application
    Filed: November 30, 2015
    Publication date: March 24, 2016
    Applicant: tesa SE
    Inventors: FRANZISKA ZMARSLY, AXEL BURMEISTER, SABINE THORMEIER, CHRISTIAN KREFT, STEPHAN BÜNZ
  • Publication number: 20110256395
    Abstract: A pressure-sensitive adhesive consisting of a homogeneous mixture of at least one natural rubber component and at least one polyacrylate component displays significantly improved properties in cohesion and aging and weathering resistance compared to the individual components. Particularly good properties are achieved when the adhesive contains x% by weight of at least one natural rubber component, y% by weight of at least one polyacrylate component, v% by weight of at least one adhesive resin component and w% by weight of additives, where 10?×x?80, 10?y<95, 0?v?50, 0?w?10 and x+y+v+w=100. A single- or double-sided adhesive tape consisting of at least one support and at least one layer of such a pressure-sensitive adhesive therefore likewise has good cohesion and aging resistance properties.
    Type: Application
    Filed: December 7, 2009
    Publication date: October 20, 2011
    Applicant: TESA SE
    Inventors: Franziska Zmarsly, Sabine Thormeier, Christian Kreft, Axel Burmeister, Stephan Bunz
  • Publication number: 20110100551
    Abstract: Adhesive assembly tape for interior finishing, comprising a carrier and an adhesive coated from the melt to at least one side of said carrier, characterized in that the adhesive comprises an ethylene-propylene rubber having a density of between 0.86 and 0.89 g/cm3 and a tackifier resin.
    Type: Application
    Filed: October 14, 2010
    Publication date: May 5, 2011
    Applicant: TESA SE
    Inventors: Bernhard Müssig, Kerstin Metzler, Stephan Bünz, Christian Kreft
  • Publication number: 20090181250
    Abstract: Adhesive, more particularly pressure-sensitive adhesive, which comprises expanded microballoons, the bond strength of the adhesive comprising the expanded microballoons being reduced by not more than 30%, preferably not more than 20%, more preferably 10%, in comparison to the bond strength of an adhesive of identical coatweight and formula which has been defoamed by the destruction of the voids produced by the expanded microballoons.
    Type: Application
    Filed: February 14, 2008
    Publication date: July 16, 2009
    Applicant: TESA AG
    Inventors: Franziska Zmarsly, Axel Burmeister, Sabine Thormeier, Christian Kreft, Stephan Bunz