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:
Oct. 29, 1985
Filed:
Mar. 01, 1984
Applicant:
Inventors:
Johannes M Compen, Eindhoven, NL;
Wilhelmus M van Kemenade, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427 64 ; 427 68 ; 313479 ; 252510 ;
Abstract
An electrically conductive layer on a wall portion of the envelope of an electric discharge tube which comprises an electrically conductive material and at least 5% by weight of silicon dioxide as an adhesive, adheres readily, is hard and can be washed with water. Such a layer can be obtained from a suspension comprising an electrically conductive material and a binder in a solvent, in which the binder is a quaternary ammonium silicate or a solution of silicon dioxide (SiO.sub.2) in phosphoric acid (H.sub.3 PO.sub.4), in which the mol ratio SiO.sub.2 /P.sub.2 O.sub.5 is between 0.3:1 and 20:1.