Patents by Inventor Kay Bernhard

Kay Bernhard 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: 11155662
    Abstract: The present invention relates to novel PMMA foams and the production thereof. Here, polymers which have been obtained by copolymerization of methacrylamides such as N-isopropylmethacrylamide and without styrene are foamed. It has surprisingly been possible to establish that a stable, simple-to-produce PMMA foam which has very good properties, e.g. a very high compressive strength, and can be joined more simply to covering layers, especially in comparison with known PMMA foams, can be obtained according to the invention.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 26, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Thomas Richter, Christoph Seipel, Kay Bernhard
  • Publication number: 20210095092
    Abstract: Polymer foams based on polyethersulfone (PESU) fulfil the legal specifications demanded by the aviation industry for aircraft interiors. Specifically the demands on fire characteristics, stability to media and mechanical properties constitute a great challenge here. According to the related art, suitable polymer foams are produced as semifinished products. Reprocessing to give shaped articles is uneconomic in terms of time and material exploitation, for example by virtue of large amounts of cutting waste. The problem is solved by the material which is suitable in principle can be processed to give particle foam mouldings. These mouldings can be produced without reprocessing in short cycle times and hence economically. Furthermore, this gives rise to new means of functional integration, for example by direct incorporation of inserts etc. in the foam, and with regard to freedom in terms of design.
    Type: Application
    Filed: November 19, 2018
    Publication date: April 1, 2021
    Applicant: Evonik Operations GmbH
    Inventors: Christian Traßl, Denis Holleyn, Kay Bernhard
  • 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
  • Publication number: 20200407558
    Abstract: A composition is used for producing novel types of foam in that they combine specifically good flame-retardant properties with a good elongation at break. These novel types of foam are produced from a blend of polyether sulphone (PES) and polyphenylene sulphone (PPSU).
    Type: Application
    Filed: November 20, 2018
    Publication date: December 31, 2020
    Applicant: Evonik Operations GmbH
    Inventors: Christian TRAßL, Kay Bernhard, Luiz Araujo, Ina Liebl, Dirk Roosen, Uwe Lang, Thomas Richter, Marion Hax, Ron van Hoorn
  • Publication number: 20200207939
    Abstract: Polymer foams based on polyetherimides (PEIs) fulfill the legal specifications demanded by the aviation industry for aircraft interiors. Specifically, the demands on fire characteristics, stability to media and mechanical properties constitute a great challenge here. According to related art, suitable polymer foams are produced as semi-finished products. Reprocessing to give shaped articles is uneconomic in terms of time and material exploitation, for example by virtue of large amounts of cutting waste. The material is suitable in principle and can be processed to give particle foam mouldings. These mouldings can be produced without reprocessing in short cycle times and, hence, economically. Furthermore, this gives rise to new means of functional integration, for example by direct incorporation of inserts etc. in the foam, and with regard to freedom in terms of design.
    Type: Application
    Filed: August 20, 2018
    Publication date: July 2, 2020
    Applicant: Evonik Operations GmbH
    Inventors: Christian TraßI, Denis HOLLEYN, Kay BERNHARD
  • Patent number: 10619024
    Abstract: The invention relates to the production of PMI foams, more particularly to their formulating ingredients, which lead to particular facility in adjusting the density at given foaming temperature.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: April 14, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Thomas Richter, Thomas Barthel, Lars Bork, Christoph Seipel, Kay Bernhard
  • 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: 10556357
    Abstract: The present invention relates to a method for cutting rigid foams, especially slabstock P(M)I foams. A method is provided here, by means of which it is possible to cut these rigid foams even in relatively high layer thicknesses of, for example, more than 3 mm, without material loss, which is produced in relevant amounts, for example, in the course of sawing as a result of the sawdust formed.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: February 11, 2020
    Assignee: Evonik Roehm GmbH
    Inventors: Thomas Richter, Kay Bernhard, Florian Becker, Felix Goldmann, Tim Denk, Ulrich Schmidt, Mathias Hempler
  • Publication number: 20190211124
    Abstract: The present invention relates to novel PMMA foams and the production thereof. Here, polymers which have been obtained by copolymerization of methacrylamides such as N-isopropylmethacrylamide and without styrene are foamed. It has surprisingly been possible to establish that a stable, simple-to-produce PMMA foam which has very good properties, e.g. a very high compressive strength, and can be joined more simply to covering layers, especially in comparison with known PMMA foams, can be obtained according to the invention.
    Type: Application
    Filed: August 31, 2017
    Publication date: July 11, 2019
    Applicant: Evonik Roehm GmbH
    Inventors: Thomas RICHTER, Christoph SEIPEL, Kay BERNHARD
  • Patent number: 10343314
    Abstract: The invention relates to a process for the production of prefoamed poly(meth)acrylimide (P(M)I) particles which can be further processed to give foam mouldings or composites. A feature of this process is that a polymer granulate is first heated and thus prefoamed in an apparatus by means of IR radiation of a wavelength suitable for this purpose. Said granulate can be further processed in subsequent steps, e.g. in a press mould with foaming to give a moulding or a composite workpiece with foam core.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: July 9, 2019
    Assignee: Evonik Roehm GmbH
    Inventors: Kay Bernhard, Ina Liebl, Denis Holleyn, Christoph Seipel
  • Publication number: 20190153186
    Abstract: The invention relates to the production of PMI foams, more particularly to their formulating ingredients, which lead to particular facility in adjusting the density at given foaming temperature.
    Type: Application
    Filed: September 6, 2016
    Publication date: May 23, 2019
    Applicant: Evonik Roehm GmbH
    Inventors: Thomas RICHTER, Thomas BARTHEL, Lars BORK, Christoph SEIPEL, Kay BERNHARD
  • Patent number: 10207435
    Abstract: The invention relates to a process for the production of mold-foamed poly(meth)acrylimide (P(M)I) cores, in particular of polymethacrylimide (PMI) cores, which can be used by way of example in automobile construction or aircraft construction. A feature of this process is that polymer granules or polymer powder preheated under pressure are moreover charged under pressure to a compression mold where they are foamed with depressurization. In particular, a feature of the process is that it optionally uses a preferably two-shell compression mold for the heating and also for the cooling of the granules and, respectively, the rigid foam core formed therefrom.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: February 19, 2019
    Assignee: Evonik Roehm GmbH
    Inventors: Kay Bernhard, Ina Liebl, Tim Denk, Florian Becker, Thomas Richter
  • Publication number: 20180215063
    Abstract: The present invention relates to a method for cutting rigid foams, especially slabstock P(M)I foams. A method is provided here, by means of which it is possible to cut these rigid foams even in relatively high layer thicknesses of, for example, more than 3 mm, without material loss, which is produced in relevant amounts, for example, in the course of sawing as a result of the sawdust formed.
    Type: Application
    Filed: November 3, 2015
    Publication date: August 2, 2018
    Applicant: Evonik Roehm GmbH
    Inventors: Thomas RICHTER, Kay BERNHARD, Florian BECKER, Felix GOLDMANN, Tim DENK, Ulrich SCHMIDT, Mathias HEMPLER
  • 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: 20170136665
    Abstract: The invention relates to a process for the production of mould-foamed poly(meth)acrylimide (P(M)I) cores, in particular of polymethacrylimide (PMI) cores, which can be used by way of example in automobile construction or aircraft construction. A feature of this process is that polymer granules or polymer powder preheated under pressure are moreover charged under pressure to a compression mould where they are foamed with depressurization. In particular, a feature of the process is that it optionally uses a preferably two-shell compression mould for the heating and also for the cooling of the granules and, respectively, the rigid foam core formed therefrom.
    Type: Application
    Filed: June 25, 2015
    Publication date: May 18, 2017
    Applicant: Evonik Roehm GmbH
    Inventors: Kay BERNHARD, Ina LIEBL, Tim DENK, Florian BECKER, Thomas RICHTER
  • Publication number: 20170087750
    Abstract: The invention relates to a process for the production of mould-foamed poly(meth)acrylimide (P(M)I) cores, in particular of polymethacrylimide (PMI) cores, which can be used by way of example in automobile construction or aircraft construction. A feature of this process is that polymer granules or polymer powder are charged to a compression mould where they are foamed. A particular feature of the process is that said two-shell compression mould has, respectively on both sides, a cavity that conforms to the shape and which serves for both the heating and the cooling of the granules and, respectively, of the rigid foam core produced therefrom.
    Type: Application
    Filed: May 13, 2015
    Publication date: March 30, 2017
    Applicant: EVONIK ROEHM GmbH
    Inventors: Kay BERNHARD, Ina LIEBL, Florian BECKER, Juergen RETTING, Denis HOLLEYN, Tim DENK, Alida Suzanne Blanche DONGMO FEUDJIO, Sebastian BUEHLER, Amin KRAATZ
  • Publication number: 20160332344
    Abstract: The invention relates to a process for the production of prefoamed poly(meth)acrylimide (P(M)I) particles which can be further processed to give foam mouldings or composites. A feature of this process is that a polymer granulate is first heated and thus prefoamed in an apparatus by means of IR radiation of a wavelength suitable for this purpose. Said granulate can be further processed in subsequent steps, e.g. in a press mould with foaming to give a moulding or a composite workpiece with foam core.
    Type: Application
    Filed: December 3, 2014
    Publication date: November 17, 2016
    Applicant: EVONIK ROEHM GMBH
    Inventors: Kay BERNHARD, Ina LIEBL, Denis HOLLEYN, Christoph SEIPEL
  • Patent number: 9260599
    Abstract: The invention describes a method for producing a foam molding from poly(meth)acrylimide, an adhesion promoter or an adhesion promoter mixture and optional auxiliaries, comprising the following steps: grinding a polymeric molding made of poly(meth)acrylamide, coating the grindings obtained in the preceding step with an adhesion promoter, introducing the coated grindings into a mold, optionally adding the auxiliaries, heating the mold, cooling the mold below the foaming temperature, and demolding the foam molding. The resulting foam molding has outstanding mechanical properties and is suitable for applications including as a component in the production of space, air, water and land vehicles.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: February 16, 2016
    Assignee: EVONIK ROEHM GmbH
    Inventors: Sebastian Buehler, Arnim Kraatz, Ina Piotrowski, Kay Bernhard
  • Publication number: 20150361236
    Abstract: The invention relates to a foamable bead polymer consisting of (meth)acrylonitrile, (meth)acrylic acid, copolymerizable latent blowing agents and optionally (meth)acrylic esters, the preparation thereof by suspension polymerization and the use thereof for producing foams. Such a bead polymer makes it possible, for example, to carry out in-mould foaming in a simple way and thus produce products having the shape of the desired workpiece directly. These workpieces are highly suitable as components in space, air, water and land vehicles and for other construction elements.
    Type: Application
    Filed: January 15, 2014
    Publication date: December 17, 2015
    Applicant: Evonik Roehm GmbH
    Inventors: Thomas RICHTER, Sabine SCHWARZ-BARAC, Kay BERNHARD, Ina PIOTROWSKI, Michael SCHNABEL, Sabrina SCHWEITZER, Dirk POPPE, Johannes VORHOLZ