Patents by Inventor Frans DeBlock

Frans DeBlock 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: 5750491
    Abstract: The present invention relates to fabric softening compositions of insoluble, degradable cationic fabric softeners at high concentrations. In particular, the present invention addresses the problem of dispersibility which is usually associated with concentrations of biodegradable cationic fabric softeners above 30%. Including a mixture of aromatic acids, especially benzoic acid and salicylic acid, at an amount of at least 10% in total, has proven to eliminate the dispersibility drawbacks and stabilize the high concentration of the fabric softener active.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: May 12, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Frans DeBlock, Jean-Francois Bodet
  • Patent number: 4162984
    Abstract: A textile treatment composition in emulsion form which is based on a mixture of cationic and nonionic softener includes an aromatic mono- or di-carboxylic acid as a viscosity modifier. The presence of a carboxylic acid such as benzoic acid or salicylic acid in emulsified mixtures of a di-higher alkyl quaternary ammonium salt and a nonionic material having at least one higher alkyl chain gives a significant increase in viscosity.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: July 31, 1979
    Assignee: The Procter & Gamble Company
    Inventors: Frans DeBlock, Pierre C. E. Goffinet, Fleming Sorensen