Patents by Inventor Sivakumara K. KRISHNAMOORTHY

Sivakumara K. KRISHNAMOORTHY 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: 10954319
    Abstract: The present invention relates to novel types of PMMA foams and also to the production thereof. The recipes used in the production process include particularly crosslinkers and chain transfer agents as recipe constituents, mostly in low concentrations, in addition to suitable blowing agents. It was found that, surprisingly, the invention provides a simple-to-produce stable PMMA foam having very good properties.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 23, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Thomas Richter, Christoph Seipel, Kay Bernhard, Sivakumara K Krishnamoorthy, Sebastian Buehler
  • Patent number: 10596772
    Abstract: The present invention relates to a novel process for the production of novel fibre-reinforced profile materials filled with a rigid foam core, especially a PMI foam core. In particular, the present invention relates to a novel process which, in various versions, provides a particularly high throughput and allows a very wide range of shaping options. One step here continuously produces a complex fibre-reinforced profile material and simultaneously inserts the rigid foam core into same. In addition, in the same process step, very good binding of the rigid foam core to the fibre-reinforced profile material is assured. Shaping further takes place in two or more moulds simultaneously to achieve a particularly high throughput and simultaneously produce profile materials differing in shape.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: March 24, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Sebastian Buehler, Sivakumara K. Krishnamoorthy, Mark Reinhard Berlin, Karl-Heinz Semlitsch
  • Patent number: 10584225
    Abstract: Fine-cell PMMA foams are produced using a production process including nucleators in addition to suitable blowing agents. It was found that, surprisingly, a simple-to-produce stable PMMA foam having very fine cells and very good properties can be produced.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: March 10, 2020
    Assignee: Evonik Roehm GmbH
    Inventors: Thomas Richter, Christoph Seipel, Kay Bernhard, Sivakumara K Krishnamoorthy, Sebastian Buehler
  • Patent number: 10131097
    Abstract: The present invention relates to a novel process for the production of novel fiber-reinforced profile materials comprising a rigid foam core, in particular a PMI foam core. In particular, the present invention relates to a novel process which can be carried out in two variants, a short Pul-press process and a Pul-shape process. One step here produces a fiber-reinforced profile material and simultaneously inserts the rigid foam core into same. The same step moreover ensures very good binding of the rigid foam core to the fiber-reinforced profile material.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: November 20, 2018
    Assignee: Evonik Röhm GmbH
    Inventors: Sebastian Buehler, Karl-Heinz Semlitsch, Sivakumara K. Krishnamoorthy
  • Publication number: 20180079882
    Abstract: Fine-cell PMMA foams are produced using a production process including nucleators in addition to suitable blowing agents. It was found that, surprisingly, a simple-to-produce stable PMMA foam having very fine cells and very good properties can be produced.
    Type: Application
    Filed: March 24, 2016
    Publication date: March 22, 2018
    Applicant: Evonik Roehm GmbH
    Inventors: Thomas RICHTER, Christoph SEIPEL, Kay BERNHARD, Sivakumara K KRISHNAMOORTHY, Sebastian BUEHLER
  • Publication number: 20180066078
    Abstract: The present invention relates to novel types of PMMA foams and also to the production thereof. The recipes used in the production process include particularly crosslinkers and chain transfer agents as recipe constituents, mostly in low concentrations, in addition to suitable blowing agents. It was found that, surprisingly, the invention provides a simple-to-produce stable PMMA foam having very good properties.
    Type: Application
    Filed: March 21, 2016
    Publication date: March 8, 2018
    Applicant: Evonik Roehm GmbH
    Inventors: Thomas RICHTER, Christoph SEIPEL, Kay BERNHARD, Sivakumara K. KRISHNAMOORTHY, Sebastian BUEHLER
  • Publication number: 20170334155
    Abstract: The present invention relates to a novel process for the production of novel fibre-reinforced profile materials filled with a rigid foam core, especially a PMI foam core. In particular, the present invention relates to a novel process which, in various versions, provides a particularly high throughput and allows a very wide range of shaping options. One step here continuously produces a complex fibre-reinforced profile material and simultaneously inserts the rigid foam core into same. In addition, in the same process step, very good binding of the rigid foam core to the fibre-reinforced profile material is assured. Shaping further takes place in two or more moulds simultaneously to achieve a particularly high throughput and simultaneously produce profile materials differing in shape.
    Type: Application
    Filed: October 22, 2015
    Publication date: November 23, 2017
    Applicant: Evonik Roehm GmbH
    Inventors: Sebastian BUEHLER, Sivakumara K. KRISHNAMOORTHY, Mark Reinhard BERLIN, Karl-Heinz SEMLITSCH
  • Publication number: 20160288431
    Abstract: The present invention relates to a novel process for the production of novel fibre-reinforced profile materials comprising a rigid foam core, in particular a PMI foam core. In particular, the present invention relates to a novel process which can be carried out in two variants, a short Pul-press process and a Pul-shape process. One step here produces a fibre-reinforced profile material and simultaneously inserts the rigid foam core into same. The same step moreover ensures very good binding of the rigid foam core to the fibre-reinforced profile material.
    Type: Application
    Filed: October 22, 2014
    Publication date: October 6, 2016
    Applicant: EVONIK ROEHM GMBH
    Inventors: Sebastian BÜHLER, Karl-Heinz SEMLITSCH, Sivakumara K. KRISHNAMOORTHY