Patents by Inventor Viktor Heidingsfeld

Viktor Heidingsfeld 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 thin-walled articles from plastic or rubber
    Patent number: 4461847
    Abstract: An unfoamed permeable material, which absorbs and desorbs moisture satisfactorily and which is suitable for making thin-walled articles having a maximum thickness of 3 mm, is based on plastic and/or rubber mixtures containing macromolecular hydrophilic fillers. The hydrophilic fillers are synthetic, water insoluble, cross-linked macromolecular materials containing pendent polar groups, which are able to bind water reversibly, e.g. hydroxy, amine, amide, carboxylic and sulfonic groups in H.sup.+, Na.sup.+, K.sup.+, Li.sup.+, Ca.sup.++, or Ba.sup.++ form, or quaternary ammonium groups in CH.sup.-, Cl.sup.- or HSO.sub.4.sup.- form.
    Type: Grant
    Filed: January 22, 1982
    Date of Patent: July 24, 1984
    Assignee: Ceskoslovenska akademie ved.
    Inventors: Slavko Hudecek, Jaroslav Hnidek, Viktor Heidingsfeld, Jan Kolarik, Jiri Zelinger
  • Method for producing thin-walled articles from plastic or rubber
    Patent number: 4228205
    Abstract: An unfoamed permeable material, which absorbs and desorbs moisture satisfactorily and which is suitable for making thin-walled articles having a maximum thickness of 3 mm, is based on plastic and/or rubber mixtures containing macromolecular hydrophilic fillers. The hydrophilic fillers are synthetic, water insoluble, cross-linked macromolecular materials containing pendent polar groups, which are able to bind water reversibly, e.g. hydroxy, amine, amide, carboxylic and sulfonic groups in H.sup.+, Na.sup.+, K.sup.+, Li.sup.+, Ca.sup.++, or Ba.sup.++ form, or quaternary ammonium groups in OH.sup.-, Cl.sup.- or HSO.sub.4.sup.- form.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: October 14, 1980
    Assignee: Ceskoslovenska akademie ved
    Inventors: Slavko Hudecek, Jaroslav Hnidek, Viktor Heidingsfeld, Jan Kolarik, Jiri Zelinger