Patents by Inventor Klaus Struss

Klaus Struss 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).

  • Process for the preparation of superabsorbent polymers from polyacrylonitrile precipitation polymers
    Patent number: 6573358
    Abstract: A process for the preparation of superabsorbers is disclosed. The process entails subjecting a polyacrylonitrile precipitation polymer alkaline hydrolysis to obtain a hydrolysis product. The hydrolysate that may optionally be neutralized is dried and ground and optionally modified by crosslinking of its surface. The inventive superabsorber is suitable for the preparation of nappies, incontinence articles, water-storage materials and electric cable coverings.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: June 3, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gisbert Michels, Günter Sackmann, Klaus Struss
  • Process for the preparation of superabsorbent polymers from polyacrylonitrile precipitation polymers
    Publication number: 20010047060
    Abstract: A process for the preparation of superabsorbers is disclosed. The process entails subjecting a polyacrylonitrile precipitation polymer alkaline hydrolysis to obtain a hydrolysis product. The hydrolysate that may optionally be neutralized is dried and ground and optionally modified by crosslinking of its surface. The inventive superabsorber is suitable for the preparation of nappies, incontinence articles, water-storage materials and electric cable coverings.
    Type: Application
    Filed: April 16, 2001
    Publication date: November 29, 2001
    Inventors: Gisbert Michels, Gunter Sackmann, Klaus Struss
  • Thermoplastic moulding compounds of polyamides and resin copolymers
    Patent number: 5340876
    Abstract: This invention relates to thermoplastic moulding compounds with improved properties, in particular with reduced water absorption and rigidity and improved impact strength, from polyamides A and a thermoplastic resin copolymer B containing at least one (meth)acrylic acid ester of a tertiary alcohol in quantities of up to 35% by weight in addition to the other monomers such as styrene or (meth)acrylic esters. The invention also relates to rigid moulding compounds which are tough at low temperatures and are obtained from polyamides and the thermoplastic resin copolymers defined above and in addition contain a rubber polymer C in quantities of up to 35% by weight.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: August 23, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uwe Westeppe, Klaus Struss, Christian Lindner, Karsten-Josef Idel, Hans-Joachim Laue
  • Powder compositions based on polyarylene sulphides
    Patent number: 4923923
    Abstract: The invention relates to powder compositions based on polyarylene sulphides, in particular polyphenylene sulphides (PPS) and thermoplastic vinyl polymers and to their use for the preparation of thermoplastic moulding compounds.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: May 8, 1990
    Inventors: Klaus Struss, Christian Lindner, Karl-Erwin Piejko, Hans-Jurgen Kress, Dieter Wittmann