Patents by Inventor Francis L. Diehl

Francis L. Diehl 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: 4711730
    Abstract: Capped 1,2-propylene terephthalate-polyoxyethylene terephthalate polyesters useful as soil release agents are disclosed. Preferred polyesters have the formula: ##STR1## wherein each R.sup.1 is a 1,4-phenylene moiety; the R.sup.2 are essentially 1,2-propylene moieties; the R.sup.3 are essentially the polyoxyethylene moiety--(CH.sub.2 CH.sub.2 O).sub.q --CH.sub.2 CH.sub.2 --; each X is ethyl or preferably methyl; each n is from about 12 to about 45; q is from about 12 to about 90; the average value of u is from about 5 to about 20; the average value of v is from about 1 to about 10; the average value of u+v is from about 6 to about 30; the ratio u to v is from about 1 to about 6.
    Type: Grant
    Filed: April 15, 1986
    Date of Patent: December 8, 1987
    Assignee: The Procter & Gamble Company
    Inventors: Eugene P. Gosselink, Francis L. Diehl
  • Patent number: 4367156
    Abstract: Peroxygen fabric bleaching compounds capable of yielding hydrogen peroxide in an aqueous solution are activated by long chain acyl compounds of the formula ##STR1## wherein Z is a leaving group which can be certain enols, carbon acids or N-alkyl quaternary imidazoles. The activated bleaching compositions herein are stable and especially suitable for use at relatively low temperatures. Bleaching processes and detergent compositions containing the bleaching compositions are also described.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: January 4, 1983
    Assignee: The Procter & Gamble Company
    Inventor: Francis L. Diehl
  • Patent number: 4283301
    Abstract: Peroxygen fabric bleaching compounds capable of yielding hydrogen peroxide in an aqueous solution are activated by long chain acyl compounds of the formula ##STR1## wherein Z is a leaving group which can be certain enols, carbon acids or N-alkyl quaternary imidazoles. The activated bleaching compositions herein are stable and especially suitable for use at relatively low temperatures. Bleaching processes and detergent compositions containing the bleaching compositions are also described.
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: August 11, 1981
    Assignee: The Procter & Gamble Company
    Inventor: Francis L. Diehl
  • Patent number: 4130392
    Abstract: Contacting damp fabrics with a dry, activated bleaching composition in an automatic dryer results in improved bleaching and stain removal over dry bleaching compositions employed in an aqueous laundering bath.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: December 19, 1978
    Assignee: The Procter & Gamble Company
    Inventors: Francis L. Diehl, James B. Edwards
  • Patent number: 4076633
    Abstract: Softening articles with improved fabric conditioning properties comprising fabric softener, certain substantially water-insoluble particulate materials and a dispensing means especially adapted for use in an automatic clothes dryer are described. The articles simultaneously provide softness, ease of ironing, anti-wrinkling and improved appearance and aesthetic benefits to fabrics treated therewith.
    Type: Grant
    Filed: October 18, 1974
    Date of Patent: February 28, 1978
    Assignee: The Procter & Gamble Company
    Inventors: James B. Edwards, Francis L. Diehl
  • Patent number: 3959155
    Abstract: Improved anti-static compositions comprising an electrically conductive metal salt dispersed in a water-insoluble quaternary compound are employed in improved detergent compositions. Detergent-compatible fabric softeners, and detergent compositions containing same, comprising a smectite clay softener and the improved anti-static compositions are provided.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: May 25, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Ronald E. Montgomery, William I. Mullane, Jr., Francis L. Diehl, James Byrd Edwards
  • Patent number: 3958059
    Abstract: Improved anti-static and fabric softening compositions are prepared by dispersing electrically conductive metal salts in quaternary compounds. Stable, liquid dispersions of the quaternary-metal salt compositions are obtained in the presence of amide dispersion stabilizers.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: May 18, 1976
    Assignee: The Procter & Gamble Company
    Inventor: Francis L. Diehl
  • Patent number: 3951674
    Abstract: Cementitious concrete compositions with improved compressive strength comprising a cellulose acetate sulfate set-retarding compressive strength increasing agent are provided.
    Type: Grant
    Filed: December 17, 1974
    Date of Patent: April 20, 1976
    Assignee: The Procter & Gamble Company
    Inventors: John D. Curry, Francis L. Diehl, Joseph P. Nirschl