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. 05, 1994
Filed:
Feb. 05, 1993
Applicant:
Inventors:
Hermann Gruber, Leverkusen, DE;
Eberhard Arning, Kaarst, DE;
Hans Hoffmann, Brugge, BE;
Alain Viquesnel, Iouy en Iosas, FR;
Paul Zybell, Zanica, IT;
Dieter Margotte, Krefeld, DE;
Keith Foster, Krefeld, DE;
Assignees:
Bayer Aktiengesellschaft, Leverkusen, DE;
Miles Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ; B21D / ;
U.S. Cl.
CPC ...
295274 ; 29 172 ; 29DI / ; 427330 ;
Abstract
A process is disclosed for the production of metal sheets enamelled with two layers, wherein the sheet is coated, before shaping, with a polymer suspension. The sheet is then dried and shaped, and optionally is coated with an enamel frit. The sheet is then fired at a temperature of 560 to 850 degrees C. The binder in the polymer suspension is preferably a material which burns completely at melting and stoving temperature.