The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 1993
Filed:
Mar. 20, 1991
Otto Diroll, Darmstadt, DE;
Klaus Hofmann, Griesheim, DE;
Uwe Jacobsen, Darmstadt, DE;
Hans Lorenz, Darmstadt, DE;
Gunther Schreyer, Darmstadt, DE;
Peter R Szigeti, Buettelborn, DE;
Hermann Buchert, Bad Durkheim, DE;
Wolfgang Eberle, Mainz, DE;
Gerhard Heinz, Weissenheim/Berg, DE;
Eckhard Koch, Fussgoenheim, DE;
Rohm GmbH Chemische Fabrik, Darmstadt, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Thermoplastically re-formable plastic sheets with flameproofing means, characterized by a core layer 1-10 mm thick comprised of polyether sulfone or a similar thermoplastic, which core material has a content of at least 0.5 wt. %, preferably at least 2 wt. %, of a flame-protective additive, such as boron trioxide; and said sheet or plate further characterized by outer layers, firmly adhering to and covering the two faces of the core layer, at least 0.05 mm thick and comprised of a thermoplastic having a lower proportional content of the flame-protective additives than the core layer; are particularly useful for interior structures in passenger conveyances, such as airplanes.