Patents by Inventor Winfried Schuler

Winfried Schuler 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).

  • Method for producing aqueous liquor dyeable modified polypropylene threads and the use thereof
    Patent number: 6555038
    Abstract: The invention relates to a method for producing aqueous liquor dyeable modified polypropylene threads. The inventive method is characterized in that a CR polypropylene suitable for fiber formation is mixed with a reaction partner which can react with CR polypropylene and the mixture obtained is processed in an extrusion spinning facility to form a thread. Suitable reaction partners are difunctional carboxylic acids, corresponding carboxylic acid derivatives or master batches made of polypropylene and difunctional carboxylic acids or corresponding carboxylic acid derivatives. The polypropylene threads obtained can be knitted to form textile fabrics. The polypropylene threads and textile fabrics can be dyed with the usual coloring agents according to a standard aqueous liquor extrusion process.
    Type: Grant
    Filed: June 12, 2000
    Date of Patent: April 29, 2003
    Assignee: Deutsche Institute fur Textil - und Faserforschung Stuttgart
    Inventors: Sabine Egeler, Rainer Gutmann, Winfried Schuler, Karl-Heinrich Wiese