Patents by Inventor Dieter Boes

Dieter Boes 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).

  • Large blow moldings made from polyethylene
    Publication number: 20050158496
    Abstract: Large blow moldings are made from polyethylene of density ??0.94 g/cm3 and of melt flow rate MFR 190/21.6<50 g/10 min, and of notched tensile impact strength azK (?30° C.) not less than 300 kJ/m2 and bursting strength, determined by a drop height test at ?18° C., of more than 3 m. Processes for producing large blow moldings of this type involve annealing large blow moldings after production. The moldings are used for storage and transport of hazardous materials.
    Type: Application
    Filed: March 14, 2005
    Publication date: July 21, 2005
    Inventors: Gunther Pfirrmann, Dieter Lilge, Gunter Hatzmann, Dieter Boes
  • Large blow moldings made from polyethylene
    Patent number: 6913729
    Abstract: Large blow moldings are made from polyethylene of density ??0.94 g/cm3 and of melt flow rate MFR 190/21.6<50 g/10 min, and of notched tensile impact strength azK (?30° C.) not less than 300 kJ/m2 and bursting strength, determined by a drop height test at ?18° C., of more than 3 m. Processes for producing large blow moldings of this type involve annealing large blow moldings after production. The moldings are used for storage and transport of hazardous materials.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: July 5, 2005
    Assignee: Elenac GmbH
    Inventors: Günther Pfirrmann, Dieter Lilge, Günter Hatzmann, Dieter Boes
  • Production of hollow plastic articles
    Patent number: 6893603
    Abstract: The present invention relates to a process for producing hollow plastic articles, encompassing the following steps: a) producing a tubular plastic parison on a blow molding plant or coextrusion blow molding plant b) cutting open the extruded or coextruded plastic parison to give at least one semifinished open-surface product c) thermoforming the resultant semifinished open-surface product to give half-shells d) welding the thermoformed half-shells to give a hollow article.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: May 17, 2005
    Assignee: Basell Polyolefine GmbH
    Inventors: Wolfgang Rohde, Dieter Boes, Michael Flosdorff, Jörg Schnorr, Bernhard Springholz, Roger Weinlein, Andreas Wüst
  • Large blow moldings made from polyethylene
    Publication number: 20040131807
    Abstract: Large blow moldings are made from polyethylene of density &rgr;≧0.94 g/cm3 and of melt flow rate MFR 190/21.6<50 g/10 min, and of notched tensile impact strength azK (−30° C.) not less than 300 kJ/m2 and bursting strength, determined by a drop height test at −18° C., of more than 3 m. Processes for producing large blow moldings of this type involve annealing large blow moldings after production. The moldings are used for storage and transport of hazardous materials.
    Type: Application
    Filed: January 3, 2002
    Publication date: July 8, 2004
    Inventors: Gunther Pfirrmann, Dieter Lilge, Gunter Hatzmann, Dieter Boes
  • Production of hollow plastic articles
    Publication number: 20020024171
    Abstract: The present invention relates to a process for producing hollow plastic articles, encompassing the following steps:
    Type: Application
    Filed: August 24, 2001
    Publication date: February 28, 2002
    Inventors: Wolfgang Rohde, Dieter Boes, Michael Flosdorff, Jorg Schnorr, Bernhard Springholz, Roger Weinlein, Andreas Wust
  • Stabilization of polyethylene grit
    Patent number: 5461097
    Abstract: A process is described for stabilizing polyethylene grit in which a sterically hindered phenol and an ester of phosphorous or of hypophosphorous acid are added to said grit, wherein the sterically hindered phenol in melt form and the ester of phosphorous or of hypophosphorous acid are made available to the polyethylene grit within a ground polyolefin matrix in which the ester is incorporated, the polyolefin matrix being compatible with the polyethylene grit.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: October 24, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenther Pfirrmann, Dieter Boes, Rudolf Paatz