Patents by Inventor Geert Bleys

Geert Bleys 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).

  • Prepolymers
    Patent number: 6376698
    Abstract: A prepolymer is provided having an NCO value of 5-30% by weight which is the reaction product obtained by reacting an excessive amount of a diphenylmethane diisocyanate containing at least 85% by weight of 4,4′-diphenylmethane diisocyanate or a variant thereof with a polyol composition comprising at least one poly(oxyethylene-oxyalkylene) polyol having an average nominal hydroxyl functionality of 2 to 6, an average hydroxyl equivalent weight of from 1000 to 3000 and an average oxyethylene content of from 50 to 85% by weight.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: April 23, 2002
    Assignee: Imperial Chemical Industries PLC
    Inventor: Geert Bleys
  • Polyurethane foams
    Patent number: 6245825
    Abstract: Process for preparing a flexible foam by reacting a polyisocyanate having a high 4,4′-MDI content and a polyol having a high EO content in the presence of a foaming agent.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: June 12, 2001
    Assignee: Imperial Chemical Industries PLC
    Inventor: Geert Bleys
  • Method of producing resilient polyoxyalkylene polyurethane foams
    Patent number: 5521226
    Abstract: Polyol composition comprising a polyol having a high functionality and a high ethylene oxide content and another polyol. Process for preparing a flexible foam from such polyols.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: May 28, 1996
    Assignee: Imperial Chemical Industries PLC
    Inventor: Geert Bleys