Patents by Inventor Lee Howarth

Lee Howarth 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).

  • Silicone compositions for treating wool materials
    Patent number: 6783806
    Abstract: Compositions are described with organopolysiloxanes which contain crosslinked units and are further crosslinkable. The compositions further contain a polyurethane containing blocked isocyanate groups. They are useful for treating fiber materials, especially textile sheet materials, and can be applied thereto in the form of aqueous solutions or dispersions. Textiles which are 50 to 100% by weight wool and have been finished with the compositions exhibit low shrinkage and low felting tendency during washing operations and also a pleasant, soft hand.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: August 31, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Simpert Lüdemann, Jürgen Riedmann, Harald Chrobaczek, Theodor Angele, Lee Howarth
  • Silicone compositions for treating wool materials
    Publication number: 20030155547
    Abstract: Compositions are described with organopolysiloxanes which contain crosslinked units and are further crosslinkable. The compositions further contain a polyurethane containing blocked isocyanate groups. They are useful for treating fiber materials, especially textile sheet materials, and can be applied thereto in the form of aqueous solutions or dispersions. Textiles which are 50 to 100% by weight wool and have been finished with the compositions exhibit low shrinkage and low felting tendency during washing operations and also a pleasant, soft hand.
    Type: Application
    Filed: October 2, 2002
    Publication date: August 21, 2003
    Inventors: Simpert Ludemann, Jurgen Riedmann, Harald Chrobaczek, Theodor Angele, Lee Howarth