Patents by Inventor Jiri Boleslav

Jiri Boleslav 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).

  • Process for the manufacture of artificial leather and product made thereby
    Patent number: 3979532
    Abstract: A process for the manufacture of artificial leather which has a napped, suede or nubuck surface finish by contacting a natural, synthetic of semi-synthetic backing member with a polymeric system comprising a mixture of a heat-reactive latex and a carboxylated latex and which contains at least one dyestuff. Each of the latices is cross-linked in sequence while the contacted backing member is dried. The migration of non-polymeric components in the system of latices is suppressed during drying. The backing so treated is mechanically altered on the grain side of the backing member to provide an irregular leather-like surface thereto.
    Type: Grant
    Filed: August 30, 1973
    Date of Patent: September 7, 1976
    Assignee: Statni vyzkumny ustav kozedelny
    Inventors: Eduard Muck, Josef Horak, Jaroslav Strachota, deceased, Jiri Boleslav, Lubomir Grygera, Ladislav Bogdanovicz, Otto Hvezda