Patents by Inventor Reinhold Blass

Reinhold Blass 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 of forming latex-, PVC- and plasticizer-free foamed floor or wall coverings
    Patent number: 5407617
    Abstract: A process for manufacturing latex-, PVC- and plasticizer-free textile or plastic floor or wall coverings, which contain a foamed layer, in which a powder mixture containing:(1) 100 parts by weight of a thermoplastic polymer;(2) 0-100 parts by weight of fillers;(3) 0.5-7 parts by weight of blowing agents; and(4) 0-30 parts by weight of additives;is scattered onto a backing layer, melted at a temperature within the range of from about 70.degree. to about 110.degree. C. smoothed between smoothing rolls and foamed at a temperature within the range of from about 120.degree. to about 200.degree. C.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: April 18, 1995
    Assignee: Tarkett Pegulan AG
    Inventors: Horst Oppermann, Reinhold Blass, Joachim Duerkop, Klaus Schmidt-Ott