Patents by Inventor Udo Gorl

Udo Gorl 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).

  • Patent number: 7695546
    Abstract: An adsorbent for organic compounds consisting of filler granules, which contain 20 to 99.9 wt. % of fillers and a binder. The adsorbent is produced by mixing at least one binder with at least one filler and performing granulation in a mixing or granulation apparatus. The adsorbent may be used for adsorbing and/or absorbing organic and/or inorganic substances from a liquid or gaseous phase.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: April 13, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Matthias Schmitt, Martin Kuge, Reinhard Stober, Udo Görl, Jürgen Leimann, Susanne Esser, Peter Kopietz, Silke Teike
  • Publication number: 20090250400
    Abstract: An adsorbent for organic compounds consisting of filler granules, which contain 20 to 99.9 wt. % of fillers and a binder. The adsorbent is produced by mixing at least one binder with at least one filler and performing granulation in a mixing or granulation apparatus. The adsorbent may be used for adsorbing and/or absorbing organic and/or inorganic substances from a liquid or gaseous phase.
    Type: Application
    Filed: May 15, 2009
    Publication date: October 8, 2009
    Inventors: Matthias Schmitt, Martin Kuge, Reinhard Stober, Udo Gorl, Jurgen Leimann, Susanne Esser, Peter Kopietz, Silke Teike
  • Patent number: 7560414
    Abstract: An adsorbent for organic compounds including filler granules, which contain 20 to 99.9 wt. % of fillers and a binder. The adsorbent is produced by mixing at least one binder with at least one filler and performing granulation in a mixing or granulation apparatus. The adsorbent may be used for adsorbing and/or absorbing organic and/or inorganic substances from a liquid or gaseous phase.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: July 14, 2009
    Assignee: Degussa AG
    Inventors: Matthias Schmitt, Martin Kuge, Reinhard Stober, Udo Görl, Jürgen Leimann, Susanne Esser, Jan Kopietz, Silke Teike
  • Publication number: 20070208127
    Abstract: A precipitated silica with the following physiochemical properties: BET surface area 35 m2/g to 350 m2/g BET/CTAB surface area ratio 0.8 to 1.1 Pore volume, PV 1.6 ml/g to 3.4 ml/g Silanol group density (V2 = NaOH 3 ml/(1.5 g) to 9.5 ml/(1.5 g) consumption) Average aggregate size 250 nm to 1500 nm CTAB surface area 30 m2/g to 350 m2/g DBP value 150 ml/100 g to 300 ml/100 g V2/V1 by Hg porosimetry 0.19 to 0.46 DBP/CTAB 1.2 to 3.5 is produced by reacting alkali silicate with mineral acids at temperatures of 60° C. to 95° C. while maintaining a pH of 7.5 to 10.5 and continuously stirring, continuing the reaction to a solids concentration in the precipitation suspension of 90 g/l to 120 g/l, adjusting the pH value to a value of less than or equal to 5, filtering out, washing, drying and optionally grinding or granulating the precipitated silica. The precipitated silica is used as a filler in vulcanizable rubber compounds and vulcanizates.
    Type: Application
    Filed: September 28, 2006
    Publication date: September 6, 2007
    Inventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch
  • Patent number: 7071257
    Abstract: Rubber compositions comprising a precipitated silica with the following physico-chemical properties: BET surface area ??35 to 350 m2/g BET/CTAB surface area ratio ?0.8 to 1.1 Pore volume, PV ?1.6 to 3.4 ml/g Silanol group density ??6 to 20 ml/(5 g) Average aggregate size ?250 to 1500 nm CTAB surface area ??30 to 350 m2/g DBP value ?150 to 300 ml/100 g V2/V1 by Hg porosimetry 0.19 to 0.46 DBP/CTAB ?1.2 to 3.5.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: July 4, 2006
    Assignee: Degussa AG
    Inventors: Heinz Esch, Udo Görl, Robert Kuhlmann, Ralf Rausch
  • Publication number: 20050282951
    Abstract: A precipitated silica with the following physicochemical properties: BET surface area 35 m2/g to 350 m2/g BET/CTAB surface area ratio 0.8 to 1.1 Pore volume, PV 1.6 ml/g to 3.4 ml/g Silanol group density 3 ml/(1.5 g) to 9.5 ml/(1.5 g) (V2 = NaOH consumption) Average aggregate size 250 nm to 1500 nm CTAB surface area 30 m2/g to 350 m2/g DBP value 150 ml/100 g to 300 ml/100 g V2/V1 by Hg porosimetry 0.19 to 0.46 DBP/CTAB 1.2 to 3.5 is produced by reacting alkali silicate with mineral acids at temperatures of 60° C. to 95° C. while maintaining a pH of 7.5 to 10.5 and continuously stirring, continuing the reaction to a solids concentration in the precipitation suspension of 90 g/l to 120 g/l, adjusting the pH value to a value of less than or equal to 5, filtering out, washing, drying and optionally grinding or granulating the precipitated silica. The precipitated silica is used as a filler in vulcanizable rubber compounds and vulcanizates.
    Type: Application
    Filed: August 2, 2005
    Publication date: December 22, 2005
    Applicant: Degussa AG
    Inventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch
  • Patent number: 6977065
    Abstract: A precipitated silica with the following physicochemical properties: BET surface area 35 m2/g to 350 m2/g BET/CTAB surface area ratio 0.8 to 1.1 Pore volume, PV 1.6 ml/g to 3.4 ml/g Silanol group density 3 ml/(1.5 g) to 9.5 ml/(1.5 g) (V2 = NaOH consumption) Average aggregate size 250 nm to 1500 nm CTAB surface area 30 m2/g to 350 m2/g DBP value 150 ml/100 g to 300 ml/100 g V2/V1 by Hg porosimetry 0.19 to 0.46 DBP/CTAB 1.2 to 3.5 is produced by reacting alkali silicate with mineral acids at temperatures of 60° C. to 95° C. while maintaining a pH of 7.5 to 10.5 and continuously stirring, continuing the reaction to a solids concentration in the precipitation suspension of 90 g/l to 120 g/l, adjusting the pH value to a value of less than or equal to 5, filtering out, washing, drying and optionally grinding or granulating the precipitated silica. The precipitated silica is used as a filler in vulcanizable rubber compounds and vulcanizates.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: December 20, 2005
    Assignee: Degussa AG
    Inventors: Heinz Esch, Udo Görl, Robert Kuhlmann, Ralf Rausch
  • Patent number: 6825262
    Abstract: The invention relates to a process for preparing fine-particle free-flowing rubber powders, composed of carbon black fillers and a rubber, prepared by solution polymerization. The process operates on the basis of a two-phase system involving transfer of the organic rubber phase in a non-aggressive manner into the inorganic filler suspension, without addition of chemicals. A rubber/carbon black composite is formed. The process comprises measures to avoid clumping of product in the aqueous phase. After mechanical water removal and thermal drying, the product obtained flows freely and is a storage-stable powder or pellet and are markedly superior to the standard both in their processing and in their rubber-technology property profile.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: November 30, 2004
    Assignee: PKU Pulverkautschuk Union GmbH
    Inventors: Udo Görl, Matthias Schmitt, Reinhard Stober, Andreas Gouw
  • Patent number: 6822036
    Abstract: Rubber powders with a high degree of filling are obtained by precipitating water-containing suspensions which contain fillers and rubber emulsions or rubber solutions. Use thereof to prepare vulcanizable rubber mixtures.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: November 23, 2004
    Assignee: PKU Pulverkautschuk Union GmbH
    Inventors: Udo Görl, Thomas Trempler, Reinhard Stober, Uwe Ernst
  • Publication number: 20030144406
    Abstract: The invention relates to a process for preparing fine-particle free-flowing rubber powders, composed of carbon black fillers and a rubber, prepared by solution polymerization. The process operates on the basis of a two-phase system involving transfer of the organic rubber phase in a non-aggressive manner into the inorganic filler suspension, without addition of chemicals. A rubber/carbon black composite is formed. The process comprises measures to avoid clumping of product in the aqueous phase. After mechanical water removal and thermal drying, the product obtained flows freely and is a storage-stable powder or pellet and are markedly superior to the standard both in their processing and in their rubber-technology property profile.
    Type: Application
    Filed: June 28, 2002
    Publication date: July 31, 2003
    Applicant: PKU PULVERKAUTSCHUK UNION GMBH
    Inventors: Udo Gorl, Matthias Schmitt, Reinhard Stober, Andreas Gouw
  • Publication number: 20030114350
    Abstract: An adsorbent for organic compounds consisting of filler granules, which contain 20 to 99.9 wt. % of fillers and a binder. The adsorbent is produced by mixing at least one binder with at least one filler and performing granulation in a mixing or granulation apparatus. The adsorbent may be used for adsorbing and/or absorbing organic and/or inorganic substances from a liquid or gaseous phase.
    Type: Application
    Filed: August 22, 2002
    Publication date: June 19, 2003
    Inventors: Matthias Schmitt, Martin Kuge, Reinhard Stober, Udo Gorl, Jurgen Leimann, Susanne Esser, Peter Kopietz, Silke Teike
  • Patent number: 6548584
    Abstract: Pulverulent rubber powder containing filler which remains free-flowing even after exposure to mechanical stresses, a process for the production thereof, in which the rubber powder is obtained in two precipitation steps, and the use of these powders for the production of vulcanizable rubber compounds.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: April 15, 2003
    Assignee: PKU Pulverkautschuk Union GmbH
    Inventors: Udo Görl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
  • Publication number: 20020169248
    Abstract: Rubber compositions comprising a precipitated silica with the following physicochemical properties: 1 BET surface area   35 to 350 m2/g BET/CTAB surface area ratio  0.8 to 1.1 Pore volume, PV  1.6 to 3.4 ml/g Silanol group density (V2 =   6 to 20 ml NaOH consumption) Average aggregate size  250 to 1500 nm CTAB surface area   30 to 350 m2/g DBP value  150 to 300 ml/100 g V2/V1 by Hg porosimetry 0.19 to 0.46 DBP/CTAB  1.2 to 3.5.
    Type: Application
    Filed: November 8, 2001
    Publication date: November 14, 2002
    Inventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch
  • Patent number: 6433064
    Abstract: Finely divided, pulverulent rubbers containing filler which contain further processing and vulcanization auxiliaries necessary for the production of vulcanizable rubber mixtures, which rubbers are pourable even after exposure to mechanical action, and to a process for the production thereof. The rubber powder is obtained within two precipitation steps. These rubber powders are used for the production of vulcanizable rubber mixtures. The fillers used, which comprise not only precipitated silicas but also carbon blacks known in the rubber industry, are optionally surface modified with organosilicon compounds.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: August 13, 2002
    Assignee: PKU Pulverkautschuk Union GmbH
    Inventors: Udo Görl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
  • Patent number: 6340724
    Abstract: Finely divided powdered rubbers containing filler which remain free-flowing even after exposure to mechanical stresses and to a process for the production thereof, in which the rubber powder is obtained in two precipitation steps, and to the use of these powders for the production of vulcanizable rubber compounds. The fillers used, which are both precipitated silicas and carbon blacks known in the rubber art, are surface-modifed by organosilicon compounds.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: January 22, 2002
    Assignee: PKU Pulverkautschuk Union GmbH
    Inventors: Udo Görl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
  • Patent number: 6329449
    Abstract: The invention relates to a process for the preparation of finely divided rubbers (rubber powders) by precipitation from aqueous mixtures, which comprise filler in the form of suspensions, water-soluble salts of a metal of groups IIa, IIb, IIIa and VIII of the periodic table of the elements arid a rubber latex (polymer latex), aqueous emulsions of a rubber or rubber solution, in which one or more organosilicon compound(s) containing at least one alkoxy group is or are dissolved or emulsified, optionally in the presence of a surface-active substance, in water, or the compounds mentioned are mixed directly, optionally with a surface-active substance, with an aqueous suspension of an oxidic or silicatic finely divided filler or a mixture of these fillers at a temperature of 10 to 60° C., preferably at room temperature, while stirring, the amount of this mixture envisaged for incoporation in the rubber, based on the filler content, in general being divided into two batches.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: December 11, 2001
    Assignee: PKU Pulverkautschuk Union GmbH
    Inventors: Udo Gorl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
  • Patent number: 6194594
    Abstract: This invention relates to mixtures of organosilane-polysulphanes of the general formula (RO)3Si(CH2)xS—Sz—S(CH2)xSi(OR)3  (I) in which R means alkyl, linear or branched, having 1-8 C atoms, in particular 1-3 C atoms x means an integer from 1-8 z means 0 to 6, wherein sum of the proportions of polysulphanes in which z=0 and z=1 amounts to ≧80% by weight, providing that the proportion of compounds in which z=0 remains below 80% and the proportion of organosilanepolysulphanes in which z means an integer from 2 to 6 does not exceed a proportion of 20 wt. % in the mixtures, and to the rubber compounds produced using these mixtures, in particular for tire treads.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: February 27, 2001
    Assignee: Degussa-Huls AG
    Inventors: Udo Görl, Horst Lambertz
  • Patent number: 6123762
    Abstract: The invention relates to granulates based on silicate fillers, the surface of which was modified with organosilicon compounds, a process for manufacturing the granulates by spraying a suspension of these fillers together with the organosilicon compounds in a spray granulator and the use of the granulates in vulcanizable rubber mixtures.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: September 26, 2000
    Assignee: Degussa-Huls AG
    Inventors: Thomas Barthel, Udo Gorl, Alan Parkhouse, Kurt Eichenauer
  • Patent number: 5925708
    Abstract: A precipitated silica with the following physicochemical properties:______________________________________ BET surface area 35 to 350 m.sup.2 /g BET/CTAB surface area ratio 0.8 to 1.1 Pore volume, PV 1.6 to 3.4 ml/g Silanol group density (V2 = 6 to 20 ml NaOH consumption) Average aggregate size 250 to 1500 nm CTAB surface area 30 to 350 m.sup.2 /g DBP value 150 to 300 ml/100 g V.sub.2 /V.sub.1 by Hg porosimetry 0.19 to 0.46 DBP/CTAB 1.2 to 2.4. ______________________________________is produced by reacting alkali silicate with mineral acids at temperatures of 60 to 95.degree. C. while maintaining a pH of 7.5 to 10.5 and continuously stirring, continuing the reaction to a solids concentration in the precipitation suspension of 90 to 120 g/l, adjusting the pH value to a value of less than or equal to 5, filtering out, washing, drying and optionally grinding or granulating the precipitated silica. The precipitated silica is used as a filler in vulcanizable rubber compounds and vulcanizates.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: July 20, 1999
    Assignee: Degussa Aktiengesellschaft
    Inventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch
  • Patent number: 5846506
    Abstract: A precipitated silica with the following physicochemical properties:______________________________________ BET surface area 35 to 350 m.sup.2 /g BET/CTAB surface area ratio 0.8 to 1.1 Pore volume, PV 1.6 to 3.4 ml/g Silanol group density (V2 = 6 to 20 ml NaOH consumption) Average aggregate size 250 to 1500 nm CTAB surface area 30 to 350 m.sup.2 /g DBP value 150 to 300 ml/100 g V.sub.2 /V.sub.1 by Hg porosimetry 0.19 to 0.46 DBP/CTAB 1.2 to 2.4. ______________________________________is produced by reacting alkali silicate with mineral acids at temperatures of 60.degree. to 95.degree. C. while maintaining a pH of 7.5 to 10.5 and continuously stirring, continuing the reaction to a solids concentration in the precipitation suspension of 90 to 120 g/l, adjusting the pH value to a value of less than or equal to 5, filtering out, washing, drying and optionally grinding or granulating the precipitated silica. The precipitated silica is used as a filler in vulcanizable rubber compounds and vulcanizates.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: December 8, 1998
    Assignee: Degussa Aktiengesellschaft
    Inventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch