Patents by Inventor Willibald Orthofer

Willibald Orthofer 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).

Prepregs comprising a fibrous base with a first coating of C-stage thermosetting resin and an outer second coating of B-stage thermosetting resin and a method of making the same

Patent number: 5470647

Abstract: The invention concerns a compressible prepreg based on flat substrates impregnated with thermosetting synthetic resins, characterized in that it comprises a first, C stage synthetic-resin layer directly deposited on the substrate and a second, B stage synthetic-resin layer deposited on the first synthetic-resin layer.

Type: Grant

Filed: January 5, 1994

Date of Patent: November 28, 1995

Assignee: Isovolta Osterreichische Isolierstoffwerke Aktiengesellschaft

Inventors: Bela Zimics, Willibald Orthofer

Prepregs comprising a fibrous base with a first coating of C-stage thermosetting resin and an outer second coating of B-stage thermosetting resin and a method of making the same