Patents by Inventor Thomas Schwalm

Thomas Schwalm 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).

  • Patent number: 5223323
    Abstract: The present invention relates to a process for coating finish foils and endless edges, wherein an acid-curing aqueous coating composition, on the basis of aminoplast resin/compound containing hydroxyl groups/self-crosslinking acrylate dispersion, is applied and baked in. The coating composition used contains 5 to 20% by weight of one or more fillers of a mean particle size from 0.015 to 10 .mu.m, a maximum particle size of .ltoreq.40 .mu.m and a density of .ltoreq.2.9 g/cm.sup.3.The invention also relates to the coating compositions positions used in the process and to finish foils and endless edges produced by the process, which especially have the advantage of an extremely low formaldehyde emission, particularly as a composite with a low-formaldehyde chipboard.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: June 29, 1993
    Assignee: BASF Corporation
    Inventors: Karl-Heinz Dickerhof, Joachim Roll, Wilhelm Moss, Thomas Schwalm