Patents by Inventor Juergen Herwig
Juergen Herwig 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: 11365270Abstract: The invention relates to polybutadiene, which contains the monomer units derived from 1,3-butadiene having a vinyl double bond in a proportion of 25 to 75 mole percent, having a trans-double bond in a proportion of 0 to 10 mole percent and a cis-double bond in a proportion of 25 to 75 mole percent, wherein the totality of the monomer units (A), (B) and (C) is supplemented to 100 mole percent, and which is characterized in that it has a number-average mole mass of 1,000 to 3,000 g/mole. The invention further relates to a method for producing polybutadienes, the use of the polybutadiene according to the invention and compositions containing polybutadiene according to the invention.Type: GrantFiled: October 9, 2020Date of Patent: June 21, 2022Assignee: Evonik Operations GmbHInventors: Kai-Steffen Krannig, Jürgen Herwig, Andreas Berlineanu, Miriam Ammer, Philip Kemper, Alexander Pschantka, Yvonne Groß-Onnebrink, Gudula Beuers, Margit Bukohl, Kirsten Luce, Siegfried Jittenmeier
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Publication number: 20210024666Abstract: The invention relates to polybutadiene, which contains the monomer units derived from 1,3-butadiene having a vinyl double bond in a proportion of 25 to 75 mole percent, having a trans-double bond in a proportion of 0 to 10 mole percent and a cis-double bond in a proportion of 25 to 75 mole percent, wherein the totality of the monomer units (A), (B) and (C) is supplemented to 100 mole percent, and which is characterized in that it has a number-average mole mass of 1,000 to 3,000 g/mole. The invention further relates to a method for producing polybutadienes, the use of the polybutadiene according to the invention and compositions containing polybutadiene according to the invention.Type: ApplicationFiled: October 9, 2020Publication date: January 28, 2021Applicant: Evonik Operations GmbHInventors: Kai-Steffen Krannig, Jürgen Herwig, Andreas Berlineanu, Miriam Ammer, Philip Kemper, Alexander Pschantka, Yvonne Groß-Onnebrink, Gudula Beuers, Margit Bukohl, Kirsten Luce, Siegfried Jittenmeier
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Patent number: 10851189Abstract: The invention relates to polybutadiene, which contains the monomer units derived from 1,3-butadiene having a vinyl double bond in a proportion of 25 to 75 mole percent, having a trans-double bond in a proportion of 0 to 10 mole percent and a cis-double bond in a proportion of 25 to 75 mole percent, wherein the totality of the monomer units (A), (B) and (C) is supplemented to 100 mole percent, and which is characterized in that it has a number-average mole mass of 1,000 to 3,000 g/mole. The invention further relates to a method for producing polybutadienes, the use of the polybutadiene according to the invention and compositions containing polybutadiene according to the invention.Type: GrantFiled: January 16, 2018Date of Patent: December 1, 2020Assignee: Evonik Operations GmbHInventors: Kai-Steffen Krannig, Jürgen Herwig, Andreas Berlineanu, Miriam Ammer, Philip Kemper, Alexander Pschantka, Yvonne Groß-Onnebrink, Gudula Beuers, Margit Bukohl, Kirsten Luce, Siegfried Jittenmeier
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Patent number: 10829590Abstract: A process has the ability to produce polyalkenamer-containing compositions. Stages of the process include converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture, and working up the product mixture to remove at least one of a monomer and an oligomer of the at least one cycloalkene to obtain the polyalkenamer-containing composition. The working up stage is effected by a diafiltration.Type: GrantFiled: October 6, 2016Date of Patent: November 10, 2020Assignee: Evonik Operations GmbHInventors: Roland Wursche, Jürgen Herwig, Peter Kreis, Marina Lazar, Martin Roos, Goetz Baumgarten, Christian Schnitzer
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Patent number: 10689483Abstract: The present invention relates to a process for producing cycloalkenamer-containing compositions and to such cycloalkenamer-containing compositions. The invention further relates to the use of these cycloalkenamer-containing compositions in the field of packaging materials, especially for food and drink.Type: GrantFiled: July 14, 2016Date of Patent: June 23, 2020Assignee: Evonik Operations GmbHInventors: Roland Wursche, Juergen Herwig
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Publication number: 20190315895Abstract: The invention relates to polybutadiene, which contains the monomer units derived from 1,3-butadiene having a vinyl double bond in a proportion of 25 to 75 mole percent, having a trans-double bond in a proportion of 0 to 10 mole percent and a cis-double bond in a proportion of 25 to 75 mole percent, wherein the totality of the monomer units (A), (B) and (C) is supplemented to 100 mole percent, and which is characterized in that it has a number-average mole mass of 1,000 to 3,000 g/mole. The invention further relates to a method for producing polybutadienes, the use of the polybutadiene according to the invention and compositions containing polybutadiene according to the invention.Type: ApplicationFiled: January 16, 2018Publication date: October 17, 2019Applicant: Evonik Degussa GmbHInventors: Kai-Steffen Krannig, Jürgen Herwig, Andreas Berlineanu, Miriam Ammer, Philip Kemper, Alexander Pschantka, Yvonne Groß-Onnebrink, Gudula Beuers, Margit Bukohl, Kirsten Luce, Siegfried Jittenmeier
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Publication number: 20190127516Abstract: The present invention relates to a process for producing cycloalkenamer-containing compositions and to such cycloalkenamer-containing compositions. The invention further relates to the use of these cycloalkenamer-containing compositions in the field of packaging materials, especially for food and drink.Type: ApplicationFiled: July 14, 2016Publication date: May 2, 2019Applicant: Evonik Degussa GmbHInventors: Roland Wursche, Juergen Herwig
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Publication number: 20180273679Abstract: A process has the ability to produce polyalkenamer-containing compositions. Stages of the process include converting at least one cycloalkene by ring-opening metathetic polymerization to obtain a polyalkenamer-containing product mixture, and working up the product mixture to remove at least one of a monomer and an oligomer of the at least one cycloalkene to obtain the polyalkenamer-containing composition. The working up stage is effected by a diafiltration.Type: ApplicationFiled: October 6, 2016Publication date: September 27, 2018Applicant: Evonik Degussa GmbHInventors: Roland Wursche, Juergen Herwig, Peter Kreis, Marina Lazar, Martin Roos, Goetz Baumgarten, Christian Schnitzer
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Patent number: 9637436Abstract: A catalyst composition is useful for producing a ketone from a compound containing at least one epoxide group, and the catalyst composition contains at least one precious metal; and at least one mixed oxide; wherein the mixed oxide contains zirconium dioxide and silicon dioxide; wherein the precious metal is supported and the support is not entirely made of the mixed oxide; and wherein a mass ratio of zirconium dioxide to silicon dioxide in the mixed oxide is 86:14 to 99.9:0.1.Type: GrantFiled: October 2, 2015Date of Patent: May 2, 2017Assignee: Evonik Degussa GmbHInventors: Kévin Micoine, Ralf Meier, Jürgen Herwig, Angélique Bétard, Thomas Quandt
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Patent number: 9598537Abstract: The invention relates to a method for the purification of poly(arylene ethers) of formula (I) in which m=0 to 1.0, n=1.0-m, and Ar1, Ar2, Ar3 and Ar4 independently represent divalent arylene groups. The compound of formula (I) is produced in a first step 1, with a raw product being obtained by bringing a metal or ammonium salt of divalent dihydroxy derivatives of Ar1 or Ar3 into contact with one or more dihalogenated derivatives of Ar2 and/or Ar4, in the presence of a solvent LM1. A precipitate that is present, if appropriate, is separated (step B) so as to obtain a solution L which then undergoes a membrane filtration (step C).Type: GrantFiled: April 22, 2014Date of Patent: March 21, 2017Assignee: Evonik Degussa GmbHInventors: Martin Roos, Jürgen Herwig, Kévin Micoine, Frank Weinelt
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Patent number: 9533932Abstract: Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and cyclododecane (CDAN), wherein CDAN is separated from the CDON-containing mixture and oxidized to CDON.Type: GrantFiled: July 31, 2015Date of Patent: January 3, 2017Assignee: EVONIK DEGUSSA GmbHInventors: Kevin Micoine, Ralf Meier, Juergen Herwig, Martin Roos, Harald Haeger, Luca Cameretti, Jens Doering
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Patent number: 9533933Abstract: Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and CDEN, wherein CDEN is separated from the CDON-containing mixture and sent to the epoxidation to CDAN epoxide in step a.Type: GrantFiled: July 31, 2015Date of Patent: January 3, 2017Assignee: EVONIK DEGUSSA GmbHInventors: Kevin Micoine, Ralf Meier, Juergen Herwig, Martin Roos, Harald Haeger, Luca Cameretti, Jens Doering
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Publication number: 20160096794Abstract: A catalyst composition is useful for producing a ketone from a compound containing at least one epoxide group, and the catalyst composition contains at least one precious metal; and at least one mixed oxide; wherein the mixed oxide contains zirconium dioxide and silicon dioxide; wherein the precious metal is supported and the support is not entirely made of the mixed oxide; and wherein a mass ratio of zirconium dioxide to silicon dioxide in the mixed oxide is 86:14 to 99.9:0.1.Type: ApplicationFiled: October 2, 2015Publication date: April 7, 2016Applicant: Evonik Degussa GmbHInventors: Kévin Micoine, Ralf Meier, Juergen Herwig, Angélique Bétard, Thomas Quandt
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Publication number: 20160075825Abstract: The invention relates to a method for the purification of poly(arylene ethers) of formula (I) in which m=0 to 1.0, n=1.0-m, and Ar1, Ar2, Ar3 and Ar4 independently represent divalent arylene groups. The compound of formula (I) is produced in a first step 1, with a raw product being obtained by bringing a metal or ammonium salt of divalent dihydroxy derivatives of Ar1 or Ar3 into contact with one or more dihalogenated derivatives of Ar2 and/or Ar4, in the presence of a solvent LM1. A precipitate that is present, if appropriate, is separated (step B) so as to obtain a solution L which then undergoes a membrane filtration (step C).Type: ApplicationFiled: April 22, 2014Publication date: March 17, 2016Inventors: Martin Roos, Jürgen Herwig, Kévin Micoine, Frank Weinelt
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Publication number: 20160031784Abstract: Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and CDEN, wherein CDEN is separated from the CDON-containing mixture and sent to the epoxidation to CDAN epoxide in step a.Type: ApplicationFiled: July 31, 2015Publication date: February 4, 2016Applicant: Evonik Degussa GmbHInventors: Kevin MICOINE, Ralf MEIER, Juergen HERWIG, Martin ROOS, Harald HAEGER, Luca CAMERETTI, Jens DOERING
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Publication number: 20160031783Abstract: Cyclododecanone (CDON) is prepared by epoxidizing cyclododecene (CDEN) to epoxycyclododecane (CDAN epoxide), and rearranging the CDAN epoxide to CDON to obtain a mixture comprising said CDON and cyclododecane (CDAN), wherein CDAN is separated from the CDON-containing mixture and oxidized to CDON.Type: ApplicationFiled: July 31, 2015Publication date: February 4, 2016Applicant: Evonik Degussa GmbHInventors: Kevin MICOINE, Ralf MEIER, Juergen HERWIG, Martin ROOS, Harald HAEGER, Luca CAMERETTI, Jens DOERING
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Patent number: 8759280Abstract: The present invention relates to the preparation of trimethylcyclododecatriene in a continuous or batchwise process by trimerizing isoprene in the presence of a catalyst system and of a solvent. It is possible to isolate the resulting crude trimethylcyclododecatriene by means of distillation. The dimethylcyclooctadiene formed as a by-product may likewise be isolated from the crude product.Type: GrantFiled: September 13, 2005Date of Patent: June 24, 2014Assignee: Evonik Degussa GmbHInventors: Dirk Kuppert, Juergen Herwig, Norbert Wilczok, Anita Voelkel, Manfred Thiery
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Patent number: 8168841Abstract: Preparation of cyclododecatriene in a continuous or discontinuous process by trimerization of butadiene in the presence of a catalyst system and a solvent, the crude cyclododecatriene obtained being able to be isolated by means of distillation. The cyclooctadiene formed as by-product can likewise be isolated from the crude product.Type: GrantFiled: March 20, 2007Date of Patent: May 1, 2012Assignee: EVONIK DEGUSSA GmbHInventors: Jürgen Herwig, Wilhelm Brügging, Martin Roos, Norbert Wilczok
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Patent number: 7608738Abstract: The present invention relates to a process for the coammoximation, that is to say for the simultaneous ammoximation, of ketones, in particular of cyclic ketones such as cyclododecanone and cyclohexanone. Ammoximation is taken to mean here the preparation of oximes from ketones or aldehydes together with hydrogen peroxide and ammonia and in the presence of a catalyst which essentially consists of silicon, titanium and oxygen, for example titanium silicalite.Type: GrantFiled: August 2, 2004Date of Patent: October 27, 2009Assignee: Degussa AGInventors: Juergen Herwig, Martin Roos, Georg Oenbrink, Bernd Guenzel, Dirk Kuppert
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Publication number: 20090099059Abstract: The present invention relates to the preparation of trimethylcyclododecatriene in a continuous or batchwise process by trimerizing isoprene in the presence of a catalyst system and of a solvent. It is possible to isolate the resulting crude trimethylcyclododecatriene by means of distillation. The dimethylcyclooctadiene formed as a by-product may likewise be isolated from the crude product.Type: ApplicationFiled: September 13, 2005Publication date: April 16, 2009Applicant: DEGUSSA GmbHInventors: Dirk Kuppert, Juergen Herwig, Norbert Wilczok, Anita Voelkel, Manfred Thiery