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).
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Patent number: 7695546Abstract: 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: GrantFiled: May 15, 2009Date of Patent: April 13, 2010Assignee: Evonik Degussa GmbHInventors: Matthias Schmitt, Martin Kuge, Reinhard Stober, Udo Görl, Jürgen Leimann, Susanne Esser, Peter Kopietz, Silke Teike
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Publication number: 20090250400Abstract: 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: ApplicationFiled: May 15, 2009Publication date: October 8, 2009Inventors: Matthias Schmitt, Martin Kuge, Reinhard Stober, Udo Gorl, Jurgen Leimann, Susanne Esser, Peter Kopietz, Silke Teike
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Patent number: 7560414Abstract: 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: GrantFiled: August 22, 2002Date of Patent: July 14, 2009Assignee: Degussa AGInventors: Matthias Schmitt, Martin Kuge, Reinhard Stober, Udo Görl, Jürgen Leimann, Susanne Esser, Jan Kopietz, Silke Teike
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Publication number: 20070208127Abstract: 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: ApplicationFiled: September 28, 2006Publication date: September 6, 2007Inventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch
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Patent number: 7071257Abstract: 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: GrantFiled: November 8, 2001Date of Patent: July 4, 2006Assignee: Degussa AGInventors: Heinz Esch, Udo Görl, Robert Kuhlmann, Ralf Rausch
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Publication number: 20050282951Abstract: 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: ApplicationFiled: August 2, 2005Publication date: December 22, 2005Applicant: Degussa AGInventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch
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Patent number: 6977065Abstract: 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: GrantFiled: June 6, 1997Date of Patent: December 20, 2005Assignee: Degussa AGInventors: Heinz Esch, Udo Görl, Robert Kuhlmann, Ralf Rausch
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Patent number: 6825262Abstract: 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: GrantFiled: June 28, 2002Date of Patent: November 30, 2004Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Görl, Matthias Schmitt, Reinhard Stober, Andreas Gouw
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Patent number: 6822036Abstract: 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: GrantFiled: May 23, 2000Date of Patent: November 23, 2004Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Görl, Thomas Trempler, Reinhard Stober, Uwe Ernst
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Publication number: 20030144406Abstract: 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: ApplicationFiled: June 28, 2002Publication date: July 31, 2003Applicant: PKU PULVERKAUTSCHUK UNION GMBHInventors: Udo Gorl, Matthias Schmitt, Reinhard Stober, Andreas Gouw
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Publication number: 20030114350Abstract: 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: ApplicationFiled: August 22, 2002Publication date: June 19, 2003Inventors: Matthias Schmitt, Martin Kuge, Reinhard Stober, Udo Gorl, Jurgen Leimann, Susanne Esser, Peter Kopietz, Silke Teike
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Patent number: 6548584Abstract: 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: GrantFiled: April 7, 1999Date of Patent: April 15, 2003Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Görl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
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Publication number: 20020169248Abstract: 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: ApplicationFiled: November 8, 2001Publication date: November 14, 2002Inventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch
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Patent number: 6433064Abstract: 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: GrantFiled: December 14, 1999Date of Patent: August 13, 2002Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Görl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
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Patent number: 6340724Abstract: 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: GrantFiled: April 19, 1999Date of Patent: January 22, 2002Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Görl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
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Patent number: 6329449Abstract: 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: GrantFiled: September 22, 1999Date of Patent: December 11, 2001Assignee: PKU Pulverkautschuk Union GmbHInventors: Udo Gorl, Reinhard Stober, Hartmut Lauer, Uwe Ernst
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Patent number: 6194594Abstract: 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: GrantFiled: July 7, 1997Date of Patent: February 27, 2001Assignee: Degussa-Huls AGInventors: Udo Görl, Horst Lambertz
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Patent number: 6123762Abstract: 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: GrantFiled: March 12, 1997Date of Patent: September 26, 2000Assignee: Degussa-Huls AGInventors: Thomas Barthel, Udo Gorl, Alan Parkhouse, Kurt Eichenauer
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Patent number: 5925708Abstract: 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: GrantFiled: July 15, 1997Date of Patent: July 20, 1999Assignee: Degussa AktiengesellschaftInventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch
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Patent number: 5846506Abstract: 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: GrantFiled: July 10, 1997Date of Patent: December 8, 1998Assignee: Degussa AktiengesellschaftInventors: Heinz Esch, Udo Gorl, Robert Kuhlmann, Ralf Rausch