Patents by Inventor Daniel Rouland

Daniel Rouland 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: 8475675
    Abstract: The present invention relates to water-in-oil polymer dispersions comprising of a continuous organic phase and therein finely dispersed and cross-linked, water-swellable polymerizates, where these have a residual monomer content of less than 1,000 ppm. The present invention relates further to a process for the production of polymer dispersions according to the invention. In addition, the present invention relates to devices for fire prevention and firefighting and to the use of the polymer dispersions according to the invention.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: July 2, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Bernd Diener, Veronika Gehler, Erich Kuester, Daniel Roulands, Dieter Wehrhahn
  • Publication number: 20080185160
    Abstract: The present invention relates to water-in-oil polymer dispersions comprising of a continuous organic phase and therein finely dispersed and cross-linked, water-swellable polymerizates, where these have a residual monomer content of less than 1,000 ppm. The present invention relates further to a process for the production of polymer dispersions according to the invention. In addition, the present invention relates to devices for fire prevention and firefighting and to the use of the polymer dispersions according to the invention.
    Type: Application
    Filed: March 12, 2008
    Publication date: August 7, 2008
    Inventors: Bernd DIENER, Veronika Gehler, Erich Kuester, Daniel Roulands, Dieter Wehrhahn
  • Patent number: 6861469
    Abstract: The invention relates to water-in-oil polymer dispersions consisting of a continuous organic phase and water-soluble polymers finely distributed therein, wherein said polymers have a radical monomer content of less than 1,000 ppm. The invention also relates to a method for producing the inventive polymer dispersions and to their use of flocculation auxiliary agents, thickening agents and as additives for phytosanitary and anti-erosion agents.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: March 1, 2005
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Bernd Diener, Veronika Gehler, Erich Küster, Daniel Roulands, Dieter Werhahn
  • Publication number: 20040006175
    Abstract: The present invention relates to water-in-oil polymer dispersions comprising of a continuous organic phase and therein finely dispersed and cross-linked, water-swellable polymerizates, where these have a residual monomer content of less than 1,000 ppm. The present invention relates further to a process for the production of polymer dispersions according to the invention. In addition, the present invention relates to devices for fire prevention and firefighting and to the use of the polymer dispersions according to the invention.
    Type: Application
    Filed: February 27, 2003
    Publication date: January 8, 2004
    Inventors: Bernd Diener, Veronika Gehler, Erich Kuester, Daniel Roulands, Dieter Wehrhahn
  • Publication number: 20030176547
    Abstract: The invention relates to water-in-oil polymer dispersions consisting of a continuous organic phase and water-soluble polymers finely distributed therein, wherein said polymers have a radical monomer content of less than 1,000 ppm. The invention also relates to a method for producing the inventive polymer dispersions and to their use of flocculation auxiliary agents, thickening agents and as additives for phytosanitary and anti-erosion agents.
    Type: Application
    Filed: February 24, 2003
    Publication date: September 18, 2003
    Inventors: Bernd Diener, Veronika Gehler, Erich Kuster, Daniel Roulands, Dieter Werhahn
  • Patent number: 6013325
    Abstract: The invention relates to a printable one-component swelling paste made of an aqueous mixture of a water-soluble polymer containing carboxyl groups, and at least one multifunctional alcohol as crosslinker and optionally further additives such as thickeners, the carboxyl groups of the polymer being neutralized to 40-65 mole-%. The invention also relates to the use of the swelling paste for producing water-swellable yarns, fabrics, nonwovens, or films. After coating the swelling paste on a support, a thermal subsequent treatment is effected for the purpose of drying and crosslinking the swelling paste.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: January 11, 2000
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Jochen Houben, Oliver Hoppe, Daniel Roulands
  • Patent number: 4601204
    Abstract: The invention relates to an apparatus with a self-displacing device for its advance in the interior of a duct for remote inspection and/or treatment. The apparatus comprises a plurality of elements coupled to one another so as to make up a train, each element of which constitutes a wagon independent of the other elements and interchangeable at will, each element fulfilling a definite function and being of a length adapted for the curves to be taken, at least one of the elements constituting a displacing element and advantageously another one of the elements constituting an element for operating the displacing element. At least one element is a holding element including a holding device bearing selectively upon the internal wall of the duct, whereas the displacing element preferably is a puller-pusher element. The apparatus is supplied with electric power and with compressed-air through a cable and a compressed-air conduit, respectively.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: July 22, 1986
    Assignees: Daniel Rouland, Gaz de France
    Inventors: Bernard Fournot, Francois Le Bozec, Daniel Rouland