Patents by Inventor Karl Zuercher

Karl Zuercher 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: 20120028016
    Abstract: The instant invention is a multilayer structure, and a process for making a multilayer structure. The multilayer structure includes (a) a first layer comprising one or more primary layers, wherein the first layer has a thickness in the range of less than 1 cm,—(b) a second layer comprising one or more secondary layers derived from one or more polyolefin dispersions, wherein the one or more secondary layers have a thickness in the range of less than 15 ?m; and (c) a third layer comprising one or more tertiary layers having a thickness in the range of less than 150 ?m. The second layer is disposed therebetween the first layer and the third layer.
    Type: Application
    Filed: February 12, 2010
    Publication date: February 2, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Karl Zuercher, Jouko Vyorykka, Bernard Fehr, Ronald Wevers, Pekka Salminen, Alexander Hipp
  • Publication number: 20110117318
    Abstract: The invention provides cross-linked polymeric films, laminates, membranes or other polymeric articles, which show rubber like heat resistance (hot set) and dimensional stability above the polymer melting point, while maintaining heat sealing properties. For example, the invention provides a film comprising at least one layer formed from a composition comprising the following components: A) at least one polymer selected from the group consisting of the following: i) an ethylene-based polymer, ii) an ethylene/?-olefin/diene interpolymer, and ii) a C4-C10 olefin-based polymer; B) at least one polymer selected from the group consisting of a propylene/ethylene interpolymer and a propylene/&alpha,- -olefin interpolymer; and wherein the film is crosslinked using radiation and/or chemicals.
    Type: Application
    Filed: July 13, 2009
    Publication date: May 19, 2011
    Inventors: Karl Zuercher, Stefan Ultsch
  • Publication number: 20100291344
    Abstract: The invention relates to a perforated coated substrate comprising at least the following: i) a first layer, ii) a second layer, and iii) a woven and/or nonwoven web; and wherein the second layer has a lower softening and/or melting temperature, as compared with the respective softening and/or melting temperatures of the first layer, and the respective softening and/or melting temperatures of the web; and wherein the layers of the coated substrate have perforations with a common center.
    Type: Application
    Filed: January 16, 2009
    Publication date: November 18, 2010
    Applicant: Dow Global Technologies Inc.
    Inventors: Maria Isabel Arroyo-Villan, Angels Domenech, Karl Zuercher
  • Patent number: 6407191
    Abstract: The present invention relates to an ethylene homo or copolymer having a density of between 0.923 and 0.935 g/cm3, having a molecular weight distribution Mw/Mn of between 3 and 10, and comprising from 0.10 to 0.50 wt. percent of units derived from a carbonyl group containing compound, based on the total weight of the homo or copolymer. In addition, the invention relates to a free radical initiation polymerization process for the preparation of medium density ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 1600 and 4000 kg/cm2, and at temperatures of about 150-330° C. in a reactor system consisting of at least one autoclave reactor or of a combination of autoclave and tubular reactors, in the presence of free radical initiators and a carbonyl group containing compound.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: June 18, 2002
    Assignee: The Dow Chemical Company
    Inventors: Juan Manuel Mezquita, Karl Zuercher, Ronald Wevers