Patents by Inventor Peter Wendling

Peter Wendling 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).

  • Publication number: 20020147266
    Abstract: The present invention provides rubber mixtures which contain at least one NSBR terpolymer and at least one polar synthetic plasticizer, a process for the preparation thereof and their use to produce rubber molded items of all kinds.
    Type: Application
    Filed: January 25, 2002
    Publication date: October 10, 2002
    Inventors: Adrian Rawlinson, Rudiger Engehausen, Peter Wendling
  • Publication number: 20020120052
    Abstract: The invention relates to quaterpolymers based on conjugated dienes, vinyl-substituted aromatic compounds, olefinically unsaturated nitrites and monomers containing hydroxyl or epoxy groups. The rubber vulcanized products or molded parts, in particular tires, produced from the quaterpolymers and/or their mixtures with other rubbers are characterized by good mechanical properties, in particular by a favorable balance as regards the rolling resistance, antiskid resistance in the wet, and abrasion resistance, which is particularly advantageous for example, in tire manufacture.
    Type: Application
    Filed: November 30, 2001
    Publication date: August 29, 2002
    Inventors: Peter Wendling, Lothar Reif, Jurgen Trimbach, Adrian Rawlinson, Rolf Peter, Rudiger Engehausen
  • Publication number: 20020120086
    Abstract: The invention relates to quaternary polymers, based on conjugate dienes, vinyl-substituted aromatic compounds, olefinically unsaturated nitriles and amino group-containing monomers. The rubber vulcanizates or molded articles, in particular tires, produced from the quaternary polymers or their mixtures with other rubbers are balanced out by good mechanical properties, in particular by a desirable balance in relation to the rolling resistance, skid resistance in the wet and abrasion, which is of particular advantage in tire construction.
    Type: Application
    Filed: September 5, 2001
    Publication date: August 29, 2002
    Inventors: Peter Wendling, Lothar Reif, Jurgen Trimbach, Adrian Rawlinson, Rolf Peter
  • Patent number: 6313211
    Abstract: The present invention relates to a process for the production of rubber mixtures containing 1 to 500 parts by weight of one or more water-repellent fillers with a methanol wettability of ≧5 wt. % to 100 parts by weight of rubber, characterized in that said water-repellent fillers are blended with one or more rubber latices and the mixture is then processes jointly, and also to rubber mixtures that can be produced with this process. The present invention relates furthermore to the use of the rubber mixtures produced by the process according to the invention for the production of tires, treads or molded articles of all kinds.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: November 6, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Scholl, Peter Wendling, Jürgen Trimbach
  • 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
  • Patent number: 6242534
    Abstract: A rubber mixture containing at least one rubber component, at least one filler, and conventional additives that it contain at least one first gel as a filler, which is essentially comprised of a rubber, has a particle size of 3×10−9 to 1×10−6 m, and has a swelling index in toluene of 1 to 15, and at least the surface of this gel has acid or base groups, where these groups have not been produced by means of reaction with dithiophosphoric acid, and comprises: a) at least one second gel as an additional filler, which is essentially comprised of a rubber, has a particle size of 3×10−9 to 1×10−6 m, and has a swelling index in toluene of 1 to 15, which is in a position to undergo a neutralization reaction with the acid or base groups of the first gel and/or b) contains at least one substance as an additional additive, which is capable of undergoing a neutralization reaction with the acid or base groups of at least one gel.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: June 5, 2001
    Assignee: Continental Aktiengesellschaft
    Inventors: Werner Obrecht, Thomas Scholl, Peter Wendling, Michael Well, Victor Monroy
  • Patent number: 6207757
    Abstract: A rubber composition which contains a rubber mixture that can be vulcanized with a vulcanizing agent, which includes at least one rubber component, at least one filler having nucleophilic groups, gel particles comprising a rubber, having a particle size between about 3×10−9 and about 1×10−6 m and a swelling index in toluene of about 1 to about 15 and whose surface has electrophilic centers, and a substance acting as a coupling agent between the filler having nucleophilic groups and the additional filler, the substance acting as a coupling agent having the following structure: X—R1—Si—(R2)3, wherein X is a nucleophilic group, R1 is an alkyl group having up to about 6 carbon atoms or a phenyl group, and R2 may be the same as or different from each other and from R1 and is an alkyl or alkoxy group having up to 6 carbon atoms and at least one of R2 is an alkoxy group.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: March 27, 2001
    Assignee: Continental Aktiengesellschaft
    Inventors: Werner Obrecht, Thomas Scholl, Peter Wendling, Michael Well, Victor Monroy
  • Patent number: 6133364
    Abstract: A rubber composition, which contains a rubber mixture that can be vulcanized with a vulcanizing agent, which includes at least one rubber component, at least one filler, gel particles comprising a rubber, having a particle size between about 3.times.10.sup.-9 and about 1.times.10.sup.-6 m and a swelling index in toluene of about 1 to about 15 and whose surface has electrophilic centers, and a substance which acts as a coupling agent between the gel particles and which has the structure A--R--A, wherein A is a nucleophilic group, and R is a saturated or unsaturated hydrocarbon group. The rubber composition has improved hysteresis behavior in the vulcanized state so that when this rubber composition is used in tires, the rolling resistance is reduced and the wet slippage behavior is improved in relation to the conventional rubber compositions. A method of formulating the rubber composition as well as a composition useful for tire treads and vehicle tires containing the composition are disclosed.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: October 17, 2000
    Assignee: Continental Aktiengesellschaft
    Inventors: Werner Obrecht, Thomas Scholl, Peter Wendling, Michael Well, Victor Monroy
  • Patent number: 6127488
    Abstract: Rubber mixtures prepared from at least one styrene/butadiene rubber gel and at least one rubber which contains double bonds and optionally further fillers and rubber auxiliary substances are in particular suitable for the preparation of vulcanizates having unusually high damping at temperatures of from -20 to +20.degree. C. as well as unusually low damping at temperatures of from 40 to 80.degree. C. The rubber mixtures may therefore be used, for example, to manufacture vehicle tires which grip in the wet and have low rolling resistance.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: October 3, 2000
    Assignee: Bayer AG
    Inventors: Werner Obrecht, Thomas Scholl, Ulrich Eisele, Winfried Jeske, Peter Wendling, Adolf Schmidt
  • Patent number: 5395891
    Abstract: Mixtures of A) polybutadiene gel and B) other rubbers containing C.dbd.C double bonds, the quantity of polybutadiene gel A), based on the sum of A)+B), being 1 to 70% by weight, show as vulcanizates a favorable combination of the properties hysteresis loss and abrasion resistance.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: March 7, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Obrecht, Peter Wendling, Robert H. Schuster, Andreas Bischoff
  • Patent number: 5298580
    Abstract: Vulcanizable, mercaptan- and/or xanthogen-disulfide-regulated polychloroprene rubber are produced by emulsion polymerization of chloroprene and, based on polymerizable monomer used, 0 to 30 parts by weight ethylenically unsaturated, other monomers copolymerizable with chloroprene in an alkaline medium by a process in which(1) 0.1 to 10 parts by weight of a tricyclic diterpene carboxylic acid containing at least two conjugated C.dbd.C double bonds per molecule, based on the polymerizable monomer used, and optionally(2) 0.1 to 5 parts by weight, based on polymerizable monomer used, fatty acid estersare used for their production.The polychloroprene produced in accordance with the invention may be used for the production of vulcanized rubber articles. The polychloroprene rubbers produced by the process according to the invention have a minimal tendency to foul metal molds. The pollution of wastewaters by the process according to the invention is minimal.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: March 29, 1994
    Assignee: Bayer AG
    Inventors: Peter Wendling, Werner Obrecht, Michael Happ, Rudiger Musch, Eberhard Muller
  • Patent number: 5124408
    Abstract: Rubber mixtures containing so-called "pre-crosslinked" polychloroprene give vulcanizates having an improved combination of low rolling resistance and low abrasion.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: June 23, 1992
    Assignee: Bayer AG
    Inventors: Hans-Wilhelm Engels, Ulrich Eisele, Werner Obrecht, Peter Wendling, Bernd Stollfuss
  • Patent number: 5064904
    Abstract: Vulcanizates of polychloroprene materials containing fluorinated polyolefin have a decreased rebound elasticity without having a significantly adverse effect on the mechanical properties.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: November 12, 1991
    Assignee: Bayer AG
    Inventors: Werner Obrecht, Heinz-Hermann Greve, Peter Wendling, Ulrich Eisele, Rudiger Musch
  • Patent number: 4954585
    Abstract: The combination of unmodified resinic acids and direct peptization in the production of sulfur-modified polychloroprene leads to a favorable ratio of elasticity to viscosity.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: September 4, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Obrecht, Peter Wendling, Rudiger Musch, Eberhard Muller
  • Patent number: 4920189
    Abstract: Toluene-soluble, sulphur-modified polychloroprene is obtained by emulsion copolymerization of chloroprene, sulphur and optionally further monomers which are copolymerizable with chloroprene and sulphur using a peroxy activator and subsequent working-up by stabilizing, stopping, degassing and isolating without separate peptization, in that polymerization is carried out in the presence of dithiocarbamates and/or xanthogenates and the activator is metered in continuously or batch-wise during the course of polymerization.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: April 24, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Obrecht, Peter Wendling, Wilhelm Gobel, Eberhard Muller
  • Patent number: 4895906
    Abstract: The invention relates to a polychloroprene rubber which shows advantages over the prior art in the sum total of its performance properties, namely vulcanization rate, tensile strength, elongation at break, modulus, tear propagation resistance and thermal stability of the vulcanizate.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: January 23, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Wendling, Werner Obrecht, Wilhelm Gobel, Rudiger Musch, Rudolf Casper, Eberhard Muller
  • Patent number: 4839447
    Abstract: Storage-stable polychloroprene is obtained, using a polymerization initiator comprising a mixture of(1) a redox system comprising(a) a reducing agent selected from the group consisting of(i) sodium dithionite,(ii) formamidine sulphinic acid, and(iii) a mixture from (i) and (ii),(b) potassium peroxodisulphate as an oxidizing agent and, optionally,(2) sodium anthraquinone-.beta.-sulphonate as a co-activatorin the presence of oxygen, wherein from 10 to 90 by weight of the initiator are present at the commencement of polymerization and the remainder is added during the polymerization, and after a certain degree of conversion the reducing agent is the only component of redox system (1) which remains to be added.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: June 13, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Casper, Peter Wendling, Wolfgang Konter, Gerhard Hohmann
  • Patent number: 4814401
    Abstract: An improved process for the preparation of polychloroprene by the emulsion (co)polymerization of chloroprene and optionally other monomers capable of copolymerization with chloroprene, using a peroxo activator, and subsequent working up of the product by stopping the reaction, stabilizing, degassing and isolating the product, characterized in that polymerization is carried out in the presence of dithiocarbamates and/or xanthates and 0 to 0.5% by weight of sodium .beta.-anthraquinone sulphonate.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: March 21, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Obrecht, Peter Wendling, Wilhelm Gobel, Eberhard Muller
  • Patent number: 4786698
    Abstract: Gel-free polychloroprene is obtained, at high monomer conversions, using a polymerization initiator comprising sodium dithionite or a mixture of sodium dithionite with formamidinesulphinic acid or with potassium peroxydisulphate or with formamidinesulphinic acid and potassium peroxodisulphate or with potassium peroxodisulphate and sodium anthraquinon-.beta.-sulphonate or with formamidinesulphinic acid and potassium peroxodisulphate and sodium anthraquinone-.beta.-sulphonate, and in the presence of oxygen and a chain transfer agent when 30 to 90% of the initiator is present at the commencement of polymerization and the remainder is added in portions during the polymerization, only further sodium dithionite being added at a conversion >60% in the case of an initiator combination, and when 20 to 80% by weight of the total amount of chain transfer agents is present before or at the commencement of polymerization and the remaining amount is added in one or more parts at monomer conversions of greater than 20%.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: November 22, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudiger Musch, Eberhard Muller, Peter Wendling, Wolfgang Konter, Gerhard Hohmann
  • Patent number: 4769407
    Abstract: An elastomeric mass of polychloroprene sol and polychloroprene gel in proportions in the range of 95:5 to 25:75% by weight in which the polychloroprene sol is free from sulphur and the polychloroprene gel used is a sulphur-containing gel with xanthate or carbamate functions has better processing characteristics than the pure sol component without the expected deterioration in the mechanical properties of the vulcanisates prepared from the mass.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: September 6, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Obrecht, Peter Wendling, Wilhelm Gobel, Eberhard Muller