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).

  • 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
  • Radiation-curable organosiloxane coating compositions
    Patent number: 6268404
    Abstract: This invention provides radiation-curing coating compositions comprising a mixture of organopolysiloxanes modified laterally and terminally with acrylic groups, which exhibit markedly improved adhesion to a variety of substrates following curing and for which there is little or no change in the adhesiveness on storage for prolonged periods.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: July 31, 2001
    Assignee: Th. Goldschmidt AG
    Inventors: Hardi Döhler, Thomas Ebbrecht, Winfried Hamann, Peter Lersch, Stefan Stadtmüller
  • (Meth)acrylate esters of organosiloxane polyols, process for their preparation, and their use as radiation-curable materials
    Patent number: 6211322
    Abstract: The invention relates to organopolysiloxanes comprising (meth)acrylate groups, to a process for their preparation and to their use as radiation-curing coating materials.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: April 3, 2001
    Assignee: Th. Goldschmidt AG
    Inventors: Hardi Döhler, Thomas Ebbrecht, Stefan Stadmüller