Patents by Inventor Monika Schwemmer

Monika Schwemmer 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).

  • Use of aqueous dispersions of two-phase emulsion graft copolymers as binders for stiffening materials in the textile and leather industry
    Patent number: 5614049
    Abstract: Process for the stiffening of textile or leather materials, includes (a) applying an aqueous polymer dispersion to a textile structure on the basis of a woven or nonwoven fabric, or a leather material; (b) drying the textile structure or leather material; and (c) the stiffening material thus produced is deformed and glued with the textile and leather material to be stiffened, in which an aqueous dispersion of a two-phase, sealable emulsion graft copolymer having a soft phase and a hard phase is applied. The hard phase has a glass transition temperature of Tg of at least 50.degree. C. and includes monomer units such as methyl methacrylate, styrene, diisopropyl fumarate and vinyl chloride. The soft phase has a glass transition temperature Tg of at least 30.degree. C.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: March 25, 1997
    Assignee: Wacker Chemie GmbH
    Inventors: Klaus Kohlhammer, Gerhard Koegler, Monika Schwemmer