Patents by Inventor Guy L. J. G. Biesmans

Guy L. J. G. Biesmans 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).

  • Process for rigid polyurethane foams
    Patent number: 5519065
    Abstract: Process for the preparation of a rigid polyurethane or urethane-modified polyisocyanurate foam in the presence of a blowing agent mixture comprising cyclopentane and a certain amounts of other organic compounds as co-blowing agenrts, the the saturated vapor pressure of said co-blowing agents in bar at T.sub.use (v.p.) complying with the following equation (I) ##EQU1## wherein C is the mole % of said co-blowing agent in gaseous form on the total blowing agent mixture in the gaseous phase after foaming and T.sub.use is the temperature in .degree.K. at which the foam is used.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 21, 1996
    Assignee: Imperial Chemical Industries PLC
    Inventors: Rik De Vos, Guy L. J. G. Biesmans
  • Organic aerogels
    Patent number: 5484818
    Abstract: Polyisocyanate based organic aerogels having pore sizes less than 100 nm, densities in the range 10 to 800 kg/m.sup.3 and surface areas in the range 10 to 1500 m.sup.2 /g are provided.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: January 16, 1996
    Assignee: Imperial Chemical Industries PLC
    Inventors: Rik De Vos, Guy L. J. G. Biesmans