Patents by Inventor Bruno F Stengel

Bruno F Stengel 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).

  • Organometallic compositions
    Patent number: 6762314
    Abstract: An organometallic composition is described which comprises a complex of at least one orthoester of a metal having a formula M(ROAcAc)x(OR′)y in which M is selected from the group consisting of titanium, zirconium and hafnium; ROAcAc denotes an ester of an alochol ROH, in which R comprises an (optionally substituted) C1-30 cyclic, branched or linear, alkyl, alkenyl, aryl or alkyl-aryl group or a mixture thereof, with acetoacetic acid; OR′ is the residue of an alcohol R′OH in which R′ comprises an (optionally substituted) C7-30 cyclic, branched or linear, alkyl, alkenyl, aryl or alkyl-aryl group or a mixture thereof, and x and y are each in the range 1-3. The composition is useful as a curing agent for polyurethanes used in various applications.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: July 13, 2004
    Assignee: Imperial Chemical Industries PLC
    Inventors: Martin G Partridge, Bruno F Stengel, John Ridland
  • Organometallic compositions
    Publication number: 20030009043
    Abstract: An organometallic composition is described which comprises a complex of at least one orthoester of a metal having a formula M(ROAcAc)x(OR′)y in which M is selected from the group consisting of titanium, zirconium and hafnium; ROAcAc denotes an ester of an alochol ROH, in which R comprises an (optionally substituted) C1-30 cyclic, branched or linear, alkyl, alkenyl, aryl or alkyl-aryl group or a mixture thereof, with acetoacetic acid; OR′ is the residue of an alcohol R′OH in which R′ comprises an (optionally substituted) C7-30 cyclic, branched or linear, alkyl, alkenyl, aryl or alkyl-aryl group or a mixture thereof, and x and y are each in the range 1-3. The composition is useful as a curing agent for polyurethanes used in various applications.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 9, 2003
    Applicant: Imperial Chemical Industries PLC
    Inventors: Martin G. Partridge, Bruno F. Stengel, John Ridland