Patents by Inventor Hermann-Josef Weidenhaupt

Hermann-Josef Weidenhaupt 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).

  • Vulcanizable rubber mixes
    Patent number: 6750275
    Abstract: The present invention relates to vulcanizable rubber mixes which, apart from the rubbers, contain O,O-bis-(alkyl)-dithiophosphoric acid polysulfides and primary and/or secondary amines, which are characterized in that they may be vulcanized without release of nitrosamines with a high crosslink density and a high proportion of short sulfur bridges.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: June 15, 2004
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Thomas Früh, Ludger Heiliger, Thomas Kleiner, Hermann-Josef Weidenhaupt, Robert-Hans Schuster, Joachim Kiesekamp
  • Process for the preparation of polymeric sulfur compounds
    Patent number: 6747122
    Abstract: The invention relates to a simple process for the preparation of polymeric sulfur compounds with polythiocyclopentanediyl structural elements which are used as vulcanizing agents for diene rubbers.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: June 8, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Josef Hahn, Marco Runk, Hermann-Josef Weidenhaupt, Hartmuth Buding
  • Liquid sulfur-containing oligosiloxanes and their use in rubber mixtures
    Patent number: 6689834
    Abstract: The invention relates to sulfur-containing oligosiloxanes which are liquid at −25-100° C., processes for their preparation and their use in silica-containing rubber mixtures which can be crosslinked with sulfur.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: February 10, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jürgen Ackermann, Hermann-Josef Weidenhaupt, Stefan Grabowski
  • Process for the preparation of polymeric sulfur compounds
    Publication number: 20030100703
    Abstract: The invention relates to a simple process for the preparation of polymeric sulfur compounds with polythiocyclopentanediyl structural elements which are used as vulcanizing agents for diene rubbers.
    Type: Application
    Filed: July 15, 2002
    Publication date: May 29, 2003
    Inventors: Josef Hahn, Marco Runk, Hermann-Josef Weidenhaupt, Hartmuth Buding
  • Rubber mixtures containing 1,4-butenediol (polyether)
    Publication number: 20030045619
    Abstract: The present invention relates to rubber mixtures with improved processing behavior and high filler activity, containing 1,4-butenediol and/or 1,4-butenediol polyether, as well as the use of the rubber mixtures for the production of vulcanizates, in particular for the production of highly reinforced, abrasion-resistant molded articles, and preferably for the production of tires that have a low rolling resistance and a high abrasion resistance.
    Type: Application
    Filed: July 15, 2002
    Publication date: March 6, 2003
    Inventors: Thomas Scholl, Ulrike Scholl, Philipp Scholl, Christine Scholl, Johannes Scholl, Hermann-Josef Weidenhaupt
  • Polyether-containing rubber mixtures
    Patent number: 6521684
    Abstract: The present invention provides rubber mixtures with improved processing behavior containing special polyethers and use of the rubber mixtures for preparing vulcanizates, in particular for the production of highly reinforced, abrasion-resistant molded items, particularly preferably for producing tires which have a low rolling resistance and a high abrasion resistance.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: February 18, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt
  • Adhesives for increasing the adhesion between rubbers and reinforcing materials
    Publication number: 20020151620
    Abstract: The present invention relates to adhesives for increasing the adhesion between rubbers and reinforcing materials based on metals, organic polymers or ceramic materials and the use of adhesives to produce rubber mixtures or rubber vulcanizates containing reinforcing materials.
    Type: Application
    Filed: February 1, 2002
    Publication date: October 17, 2002
    Inventors: Bernhard Jansen, Rudiger Schubart, Stefan Grabowski, Hermann-Josef Weidenhaupt
  • Liquid sulfur-containing oligosiloxanes and their use in rubber mixtures
    Publication number: 20020091187
    Abstract: The invention relates to sulfur-containing oligosiloxanes which are liquid at −25-100° C., processes for their preparation and their use in silica-containing rubber mixtures which can be crosslinked with sulfur.
    Type: Application
    Filed: September 7, 2001
    Publication date: July 11, 2002
    Inventors: Jurgen Ackermann, Hermann-Josef Weidenhaupt, Stefan Grabowski
  • Diene rubber compounds for improved rubber moldings
    Publication number: 20020058760
    Abstract: This invention relates to vulcanizable diene rubber compounds with a high capacity for the addition of sulfur to be varied while processing safety is maintained, for the production of improved rubber moldings, particularly tire components.
    Type: Application
    Filed: May 19, 2000
    Publication date: May 16, 2002
    Inventors: Winfried Jeske, Hartmuth Buding, Hermann-Josef Weidenhaupt
  • Vulcanizable rubber compounds containing styrene-butadiene and butadiene rubbers
    Patent number: 6359045
    Abstract: This invention relates to vulcanizable rubber compounds based on styrene-butadiene rubber, which contain a special vulcanizing system, which are reinforced with silica and which contain a filler activator, for tire treads which exhibit improved abrasion-resistance.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: March 19, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Winfried Jeske, Hartmuth Buding, Hermann-Josef Weidenhaupt
  • Vulcanizing agents for unsaturated rubber mixtures
    Patent number: 6319993
    Abstract: The invention relates to polymeric sulfur compounds, their preparation and their use as vulcanizing agcnts for unsaturated rubber mixtures.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: November 20, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hermann-Josef Weidenhaupt, Hartmuth Buding, Josef Hahn, Marco Runk
  • Polyether-containing rubber mixtures
    Publication number: 20010031822
    Abstract: The present invention provides rubber mixtures with improved processing behavior containing special polyethers and use of the rubber mixtures for preparing vulcanizates, in particular for the production of highly reinforced, abrasion-resistant molded items, particularly preferably for producing tires which have a low rolling resistance and a high abrasion resistance.
    Type: Application
    Filed: March 8, 2001
    Publication date: October 18, 2001
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt
  • Vulcanizing agents for unsaturated rubber mixtures
    Publication number: 20010029290
    Abstract: The invention relates to new polymeric sulfur compounds, their preparation and their use as vulcanizing agents for unsaturated rubber mixtures.
    Type: Application
    Filed: January 19, 2001
    Publication date: October 11, 2001
    Inventors: Hermann-Josef Weidenhaupt, Hartmuth Buding, Josef Hahn, Marco Runk
  • Hydrophobic, oxidic or siliceous fillers and their use
    Patent number: 6287376
    Abstract: Hydrophobic, oxidic and/or siliceous fillers obtainable by treating an oxidic and/or siliceous filler with 0.1 to 50 parts by weight, per 100 parts by weight of filler, with an adduct of sulfur and unsaturated primary and/or secondary alcohols with 3 to 60 carbon atoms at temperatures of 20 to 250° C., wherein the adduct has been obtained by reacting 1 to 10 moles of sulfur per mole of double bonds in the alcohol.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: September 11, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt, Heinrich Königshofen, Peter Wendling
  • Vulcanizable rubber mixes
    Publication number: 20010012866
    Abstract: The present invention relates to vulcanizable rubber mixes which, apart from the rubbers, contain O,O-bis-(alkyl)-dithiophosphoric acid polysulfides and primary and/or secondary amines, which are characterized in that they may be vulcanized without release of nitrosamines with a high crosslink density and a high proportion of short sulfur bridges.
    Type: Application
    Filed: January 18, 2001
    Publication date: August 9, 2001
    Inventors: Thomas Fruh, Ludger Heiliger, Thomas Kleiner, Hermann-Josef Weidenhaupt, Robert-Hans Schuster, Joachim Kiesekamp
  • Vulcanization accelerators suitable for the introduction of polar substituents
    Patent number: 6140427
    Abstract: New vulcanization accelerators, corresponding to the formula ##STR1## are particularly suitable for the production of vulcanized rubbers modified with lateral polar groups.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: October 31, 2000
    Assignee: Bayer AG
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt, Stefan Kelbch, Hans-Wilhelm Engels
  • Rubber mixtures containing polysulphide polyether silanes
    Patent number: 5977225
    Abstract: The rubber mixtures according to the invention, containing at least one rubber, a filler, optionally additional rubber auxiliaries and at least one polysulphide polyether silane corresponding to the formulaR.sup.1 R.sup.2 R.sup.3 Si--X.sup.1 --(--S.sub.x --polyether --).sub.m --(--S.sub.x --X.sup.2 --SiR.sup.1 R.sup.2 R.sup.3).sub.n (I),are used for the preparation of rubber vulcanisates, from which in particular tires having a low rolling resistance associated with a good wet skid resistance and a high abrasion resistance can be produced.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: November 2, 1999
    Assignee: Bayer AG
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt, Heinrich Konigshofen, Ulrich Eisele
  • Rubber mixtures containing sulphurous polyosters
    Patent number: 5733965
    Abstract: Rubber mixtures containing at least one rubber, one filler, optionally additional rubber auxiliary agents and also at least one sulphurous polyester are outstandingly suitable for the production of rubber vulcanisate having good mechanical properties and good hysteresis behaviour.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: March 31, 1998
    Assignee: Bayer AG
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt, Ulrich Eisele
  • Rubber mixtures containing reinforcing additives, which additives include sulphur and silicon
    Patent number: 5663226
    Abstract: The rubber mixtures according to the invention, containing at least one vulcanising agent, a filler, optionally other rubber additives and at least one reinforcing additive of the formulaR.sup.1 R.sup.2 R.sup.3 Si--X.sup.1 --(--S.sub.x --Y--).sub.m --(--S.sub.x --X.sup.2 --SiR.sup.1 R.sup.2 R.sup.3).sub.nare used for the preparation of vulcanised rubbers, wherefrom in particular tires having a low rolling resistance combined with a good wet skid resistance and a high abrasion resistance can be produced.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: September 2, 1997
    Assignee: Bayer AG
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt, Ulrich Eisele
  • Rubber mixtures incorporating sulphur-containing organosilicon compounds
    Patent number: 5650457
    Abstract: The rubber mixtures according to the invention, containing at least one rubber, a vulcanizing agent, a filler, optionally other rubber additives and at least one reinforcing additive of the formula ##STR1## are used for the production of vulcanized rubbers, from which in particular tires can be produced having a low rolling resistance combined with a good wet skid resistance and a high abrasion resistance.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: July 22, 1997
    Assignee: Bayer AG
    Inventors: Thomas Scholl, Hermann-Josef Weidenhaupt