Patents Assigned to Gebr. Otto GmbH & Co. KG
  • Patent number: 6610763
    Abstract: A process for preparing a container for handling a household waste material which involves molding a household waste container from a plastic batch material containing 0.1 to 10% by weight of at least one phenol biocide selected from the group consisting of 5,5′-dichloro-2,2′-dihydroxydiphenyl methane, 3,5,3′,5′-tetrachloro-4,4′-dihydroxydiphenyl methane, 3,5,6,3′,5′,6′-hexachloro-2,2′-dihydroxydiphenyl methane, 5,5′-dichloro-2,2′-dihydroxydiphenyl sulfide, 2,4,5,2′,4′,5′-hexachloro-dihydroxydiphenyl sulfide, 3,5,3′,5′-tetrachloro-2,2′-dihydroxydiphenyl sulfide, and 2,4,4′-trichloro-2′-hydroxydiphenyl ether to form the container with an inner and an outer co-extruded layer wherein the phenol is applied on a co-extruded layer forming the surface of the inner co-extruded layer.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: August 26, 2003
    Assignee: Gebr. Otto GmbH & Co. KG
    Inventor: Ulrich Beese