Patents by Inventor Thomas Allspach

Thomas Allspach 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).

  • Novel polyphenol and thermosetting plastics prepared therefrom
    Patent number: 4987264
    Abstract: Novel phenol compounds of the general formula ##STR1## where X is a sulfone group or contains a sulfone group, are suitable for the preparation of epoxy resins, vinyl ester resins, bismaleimide resins and cyanate resins.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: January 22, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Jan Holoch, Roland Peter, Philipp Eisenbarth, Thomas Allspach
  • Single phase toughened heat-curable resin systems exhibiting high strength after impact
    Patent number: 4940740
    Abstract: Heat curable epoxy resin systems are disclosed which may be cured to form monophasic matrix resins and adhesives which, when utilized as matrix resins in carbon fiber reinforced composites, are capable of forming quasiisotropic panels having CAI values greater than 275 MPa after an impact of 6.68 kJ/m, and which maintain their tack after extended storage at room temperature.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: July 10, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Folda, Thomas Allspach
  • Epoxy resins obtained from reaction of epoxyalkyl halides and aromatic hydroxyl-containing melamines
    Patent number: 4855427
    Abstract: Epoxy resins obtained from an epoxyalkyl halide and an aromatic hydroxyl-containing melamine derivative, and vinyl ester resins based on a reaction product of the epoxy resin with an unsaturated monocarboxylic acid can be cured to give molded materials having high heat distortion resistance.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: August 8, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Roland Peter, Klaus Ebel, Thomas Allspach