Patents by Inventor Charles E. Cluthe

Charles E. Cluthe 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).

  • Heat-resistant nonwoven fabrics
    Patent number: 5143582
    Abstract: A method for making a heat resistant nonwoven fabric is provided. A formaldehyde-free binder composition containing a carboxy group, or a carboxylic anhydride, or salts of a carboxy group; and a .beta.-hydroxyalkyl amide contacts a nonwoven fabric containing heat-resistant fibers, and heating the binder composition is effected.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: September 1, 1992
    Assignee: Rohm and Haas Company
    Inventors: Charles T. Arkens, Charles E. Cluthe, Reginald T. Smart