Patents by Inventor Jean-Claude Guillaumon

Jean-Claude Guillaumon 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: 6284385
    Abstract: The invention concerns a coating material for thermal control comprising a reflecting metal layer whether or not supported by a substrate, characterized in that the reflecting metal layer is coated with a polysiloxane transparent protective coating whereof the structure consists of two-dimensional or three-dimensional blocks mutually linked with linear chains or binding groups, said protective coat being free of chromophoric groups capable of absorbing in ultraviolet radiation above 170 nm. The invention is particularly useful in the aerospace industry.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: September 4, 2001
    Assignee: Centre National d'Etudes Spatiales
    Inventors: Jean-Claude Guillaumon, Pascale VĂ©ronique Nabarra
  • Patent number: 6086667
    Abstract: The invention relates, in particular, to pigments in the form of fine particles having enhanced stability with respect to ultraviolet solar radiation and particle radiation (electrons, protons), characterized in that the pigment are coated with a UV filter.Application in the production of paints for spacecrafts.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: July 11, 2000
    Assignee: Centre National d'Etudes Spatiales
    Inventors: Jean-Claude Guillaumon, Pascale Veronique Nabarra
  • Patent number: 6045609
    Abstract: The invention features in particular white mineral pigments in the form of fine particles having increased stability against solar ultraviolet radiation, characterised in that the pigment particles are coated with an oxidising agent. It is useful in the formulation of white paints for space vehicles.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: April 4, 2000
    Assignee: Centre National D'Etudes Spatiales
    Inventors: Jean-Claude Guillaumon, Pascale Veronique Nabarra
  • Patent number: 4920163
    Abstract: A paint for use on surfaces subject to lightning strikes includes a film-forming binder and a pigment, the pigment comprising at least one alkali metal salt or alkaline earth metal salt with a low first ionization potential, of a mono- or polyfunctional organic acid, carbonic acid or a polymer having an acidic group, the pigment being present in an amount sufficient to render the paint ionizable under the action of a strong electric current.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: April 24, 1990
    Assignee: Centre Nationale d'Etudes Spatiales
    Inventors: Jean-Claude Guillaumon, Louis J. C. Blet
  • Patent number: 4655966
    Abstract: The invention relates to a process for the preparation of an antimony oxide-doped tin oxide pigment with a white or off-white color and a surface electrical resistance not exceeding 20 ohms/square, comprising the intimate mixing of tin oxide and antimony oxide, then heating the resultant mixture to a high temperature, in which a proportion of 1.25 to 10 parts by weight of antimony oxide Sb.sub.2 O.sub.3 per 100 parts by weight of tin oxide SnO.sub.2 is mixed and the mixture of Sb.sub.2 O.sub.3 and of SnO.sub.2 is calcined at a temperature in the range from 900.degree. to 950.degree. C.Application for the manufacture of electrically conductive white or colored paints which are useful particularly in aeronautics.
    Type: Grant
    Filed: August 1, 1985
    Date of Patent: April 7, 1987
    Assignee: Centre National d'Etudes Spatiales et Master Peintures
    Inventors: Jean-Claude Guillaumon, Louis J. C. Blet, Francoise M. J. B. Guerard
  • Patent number: 4317855
    Abstract: This invention relates to an electrically conductive white coating of the paint type, which has a solar absorption .alpha..sub.S not greater than 0.30, a hemispherical emission factor .epsilon. not less than 0.80, a surface resistance R.sub.S, measured in a vacuum less than 10.sup.-5 torr, not greater than 10.sup.9 ohms/square, and which meets the degasification-pollution requirements, characterized in that the coating comprises (a) a layer which is a good conductor of electricity and (b) a white layer which is a poor conductor of electricity and which is applied on top of layer (a). The coating is for use in the space and aeronautical industries.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: March 2, 1982
    Assignee: Centre National d'Etudes Spatiales
    Inventors: Jean-Claude Guillaumon, Louis J. C. Blet