Patents by Inventor Hardi Doehler

Hardi Doehler 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).

  • Permeation-inhibiting release coating
    Patent number: 11001737
    Abstract: The invention relates to compositions containing at least one siloxane which comprises ethylenically unsaturated, radically polymerizing groups, and at least one hydrocarbon with ethylenically unsaturated, radically polymerizing groups, which have, when used as a separating coating, an improved barrier effect.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: May 11, 2021
    Assignee: Evonik Operations GmbH
    Inventors: Juergen Pomorin, Dieter Grauer, Hardi Doehler, Ingo Schoenemann, Mike Brand
  • Radiation-curable coating compounds consisting of a plurality of components, and the use of same in release-coated substrates
    Patent number: 10465032
    Abstract: A composition contains at least one siloxane having ethylenically unsaturated, radically-polymerizable groups, and at least one hydrocarbon having 2 to 6 ethylenically-unsaturated, radically-polymerizable groups, and can be used as a release coating, said composition allowing a good degree of release behavior from adhesive compounds while at the same time also achieving a high level of adhesion of the coating to the carrier material.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 5, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Hardi Doehler, Mike Brand
  • PERMEATION-INHIBITING RELEASE COATING
    Publication number: 20190161656
    Abstract: The invention relates to compositions containing at least one siloxane which comprises ethylenically unsaturated, radically polymerizing groups, and at least one hydrocarbon with ethylenically unsaturated, radically polymerizing groups, which have, when used as a separating coating, an improved barrier effect.
    Type: Application
    Filed: June 7, 2017
    Publication date: May 30, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Juergen POMORIN, Dieter GRAUER, Hardi DOEHLER, Ingo SCHOENEMANN, Mike BRAND
  • RADIATION-CURABLE COATING COMPOUNDS CONSISTING OF A PLURALITY OF COMPONENTS, AND THE USE OF SAME IN RELEASE-COATED SUBSTRATES
    Publication number: 20170369619
    Abstract: A composition contains at least one siloxane having ethylenically unsaturated, radically-polymerizable groups, and at least one hydrocarbon having 2 to 6 ethylenically-unsaturated, radically-polymerizable groups, and can be used as a release coating, said composition allowing a good degree of release behavior from adhesive compounds while at the same time also achieving a high level of adhesion of the coating to the carrier material.
    Type: Application
    Filed: December 10, 2015
    Publication date: December 28, 2017
    Applicant: Evonik Degussa GmbH
    Inventors: Hardi DOEHLER, Mike BRAND
  • Composite silicone membranes of high separation efficiency
    Patent number: 9539549
    Abstract: Composite membrane having a separating membrane layer characterized in that a separating membrane layer is produced by curing laterally modified silicone acrylates of the general Formula I
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: January 10, 2017
    Assignee: Evonik Degussa GmbH
    Inventors: Rene Haensel, Hardi Doehler, Peter Schwab, Peter Seidensticker, Michael Ferenz, Goetz Baumgarten, Marina Lazar, Markus Ungerank
  • COMPOSITE SILICONE MEMBRANES OF HIGH SEPARATION EFFICIENCY
    Publication number: 20120279922
    Abstract: Composite membrane having a separating membrane layer characterized in that a separating membrane layer is produced by curing laterally modified silicone acrylates of the general Formula I
    Type: Application
    Filed: November 2, 2010
    Publication date: November 8, 2012
    Applicants: Evonik Degussa GmbH, Evonik Goldschmidt GmbH
    Inventors: Rene Haensel, Hardi Doehler, Peter Schwab, Peter Seidensticker, Michael Ferenz, Goetz Baumgarten, Marina Lazar, Markus Ungerank
  • Cationic radiation-curing controlled release coating materials
    Patent number: 7893128
    Abstract: The invention provides radiation-curing coating materials composed of at least one silicone resin modified with vinylalkoxysilane and vinylcyclohexene oxide and of at least one epoxy-functionalized polysiloxane and of a cationic photoinitiator. Furthermore, coinitiators may also be a constituent of the mixture, in order to obtain increased reactivity of the formulation.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: February 22, 2011
    Assignee: Evonik Glodschmidt GmbH
    Inventors: Stefan Busch, Hardi Doehler, Michael Ferenz, Sascha Herrwerth
  • Use of particulate emulsifiers in abhesive siloxane-containing coating materials
    Patent number: 7727599
    Abstract: The invention relates to a durably homogeneous, low-viscosity, radiation-curable coating material comprising a) x (meth)acrylated polysiloxanes and if desired b) y (meth)acrylated organic compounds and c) at least one particulate emulsifier having an average particle size of <1000 nm in at least one dimension, with the proviso that x?1, y?0, the sum of x+y?2 and the mixture of components a) and b) alone is not durably homogeneous.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: June 1, 2010
    Assignee: Goldschmidt GmbH
    Inventors: Hardi Doehler, Michael Ferenz, Sascha Herrwerth, Matthias Naumann, Joachim Venzmer, Andreas Landgraf
  • USE OF PARTICULATE EMULSIFIERS IN ABHESIVE SILOXANE-CONTAINING COATING MATERIALS
    Publication number: 20080064782
    Abstract: The invention relates to a durably homogeneous, low-viscosity, radiation-curable coating material comprising a) x (meth)acrylated polysiloxanes and if desired b) y (meth)acrylated organic compounds and c) at least one particulate emulsifier having an average particle size of <1000 nm in at least one dimension, with the proviso that x?1, y?0, the sum of x+y?2 and the mixture of components a) and b) alone is not durably homogeneous.
    Type: Application
    Filed: September 4, 2007
    Publication date: March 13, 2008
    Applicant: Goldschmidt GmbH
    Inventors: Hardi Doehler, Michael Ferenz, Sascha Herrwerth, Matthias Naumann, Joachim Venzmer, Andreas Landgraf
  • POLYSILOXANES CONTAINING (METH)ACRYLIC ESTER GROUPS ATTACHED VIA SiOC GROUPS, PROCESSES FOR PREPARING THEM AND THEIR USE AS A RADIATION-CURABLE ADHESIVE COATING
    Publication number: 20070299231
    Abstract: The present invention accordingly provides new organopolysiloxanes having (meth)acrylic ester groups attached pendent and terminally or only pendent via SiOC groups, of the general average formula (I) and also provides a process for preparing the compounds by reacting polysiloxanes containing SiH groups with (meth)acrylated monoalcohols and/or (meth)acrylated polyalcohols using Lewis-acid catalysts or catalysts comprising an acid and salts thereof.
    Type: Application
    Filed: September 13, 2007
    Publication date: December 27, 2007
    Applicant: Goldschmidt GmbH
    Inventors: Hardi Doehler, Jutta Esselborn, Sascha Herrwerth, Thomas Neumann
  • CATIONIC RADIATION-CURING CONTROLLED RELEASE COATING MATERIALS
    Publication number: 20070287765
    Abstract: The invention provides radiation-curing coating materials composed of at least one silicone resin modified with vinylalkoxysilane and vinylcyclohexene oxide and of at least one epoxy-functionalized polysiloxane and of a cationic photoinitiator. Furthermore, coinitiators may also be a constituent of the mixture, in order to obtain increased reactivity of the formulation.
    Type: Application
    Filed: May 11, 2007
    Publication date: December 13, 2007
    Applicant: Goldschmidt GmbH
    Inventors: Stefan Busch, Hardi Doehler, Michael Ferenz, Sascha Herrwerth
  • PROCESS FOR PRODUCING SILOXANE-CONTAINING RELEASE COATINGS
    Publication number: 20070197678
    Abstract: The invention provides a process for producing siloxane-containing release coatings which comprises curing a siloxane-containing coating material by irradiation with microwaves.
    Type: Application
    Filed: February 21, 2007
    Publication date: August 23, 2007
    Applicant: Goldschmidt GmbH
    Inventors: Pedro Cavaleiro, Hardi Doehler, Michael Ferenz, Winfried Hamann, Stefan Silber, Philipp Tomuschat, Joachim Venzmer
  • USE OF EPOXY-FUNCTIONAL SILANES AS ADHESION ADDITIVES FOR CATIONICALLY RADIATION CURING SILICONE RELEASE COATINGS
    Publication number: 20070059539
    Abstract: The invention provides a method of improving the adhesion of radiation-cured adhesive silicone release coatings on films or polymer-coated paper through use of adhesion additives, which method comprises using, as adhesion additives, epoxy-functional silanes of the general formula (III)
    Type: Application
    Filed: September 11, 2006
    Publication date: March 15, 2007
    Applicant: Goldschmidt GmbH
    Inventors: Hardi Doehler, Michael Ferenz, Sascha Herrwerth
  • Polysiloxanes containing (meth)acrylic ester groups attached via SiOC groups, processes for preparing them and their use as a radiation-curable abhesive coating
    Publication number: 20050136269
    Abstract: The present invention accordingly provides new organopolysiloxanes having (meth)acrylic ester groups attached pendent and terminally or only pendent via SiOC groups, of the general average formula (I) and also provides a process for preparing the compounds by reacting polysiloxanes containing SiH groups with (meth)acrylated monoalcohols and/or (meth)acrylated polyalcohols using Lewis-acidic catalysts or catalysts comprising a carboxylic acid and salts thereof.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 23, 2005
    Inventors: Hardi Doehler, Jutta Esselborn, Sascha Herrwerth, Thomas Neumann
  • Use of hydroxyl-functional polyalkylorganosiloxanes as solvents for cationic photoinitiators for use in radiation-curable silicones
    Publication number: 20050054769
    Abstract: The invention provides for the use of hydroxyl-functional polyalkylorganosiloxanes of the general formula (IV) as solvents for cationic photoinitiators and for the use of these solutions in cationically curable silicones.
    Type: Application
    Filed: September 3, 2004
    Publication date: March 10, 2005
    Inventors: Hardi Doehler, Sascha Oestreich