Patents by Inventor Eric Huygens

Eric Huygens 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 preparing flexible foams
    Patent number: 5594039
    Abstract: Process for making a flexible foam by reacting a polyisocyanate composition having an NCO value of 10-25% by weight and 30-150 parts by weight, per 100 parts by weight of polyisocyanate composition, of a polyol composition comprising water at an isocyanate-index of 40-100.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: January 14, 1997
    Assignee: Imperial Chemical Industries
    Inventors: Dirk Gerber, Johan R. Derluyn, Eric Huygens
  • Process for preparing flexible foams
    Patent number: 5521225
    Abstract: Process for making a flexible foam by reacting a polyisocyanate composition having an NCO value of 10-25% by weight and 30-150 parts by weight, per 100 parts by weight of polyisocyanate composition, of a polyol composition comprising water at an isocyanate-index of 40-100.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: May 28, 1996
    Assignee: Imperial Chemical Industries plc
    Inventors: Dirk Gerber, Johan R. Derluyn, Eric Huygens
  • Process for preparing flexible foams
    Patent number: 5491176
    Abstract: Process for preparing a flexible foam by reacting an isocyanate-terminated prepolymer having an NCO value of 5-18% by weight, a polyisocyanate having an NCO value of at least 25% by weight, 20-95 parts by weight, per 100 parts by weight of polyisocyanate, of an isocyanate-reactive compound of molecular weight of 1000-12000, and water.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 13, 1996
    Assignee: Imperial Chemical Industries PLC
    Inventor: Eric Huygens
  • Process for making MDI based flexible foam
    Patent number: 5399594
    Abstract: Process for preparing MDI flexible foam in a closed mould at a pressure of 0.001-0.5 bar above atmospheric pressure.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: March 21, 1995
    Assignee: Imperial Chemical Industries PLC
    Inventor: Eric Huygens
  • Reaction system for preparing polyurethane/polyurea
    Patent number: 5260346
    Abstract: Reaction system for preparing elastomers according to the RIM process, the system comprising an allophanate modified polyisocyanate, a polyol and an aromatic polyamine chain extender. No IMR is necessary.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: November 9, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Edward F. Cassidy, Eric Huygens, Jan W. Leenslag
  • Composite articles
    Patent number: 4868043
    Abstract: A composite article comprising a body of semi-rigid polyurethane foam in contact with a layer of sheet of polymeric material, the foam having been prepared by reacting an organic polyisocyanate with a polymeric polyol having a hydroxyl number in the range from 20 to 80 and a crosslinking agent or chain extender having a hydroxyl number of at least 250 in the presence of water and a catalytically effective amount of an alkali metal or alkaline earth metal salt of an acid of the formula:R--A--COOHwherein R represents R'OCO--, R'COO-- or R'O--, R' represents an optionally substituted hydrocarbon or heterocyclic radical and A represents an optionally substituted C.sub.1 -C.sub.3 chain.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: September 19, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventors: Berend Eling, Eric Huygens