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:
Nov. 20, 1979
Filed:
Jan. 02, 1979
Applicant:
Inventor:
Kenneth Speigel, Seneca Falls, NY (US);
Assignee:
GTE Sylvania Incorporated, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 71 ; 427220 ;
Abstract
A process for increasing the wetting capabilities of phosphors employed in color cathode ray tubes includes coating the phosphors with a wetting agent which is organic, substantially non-ionic, water or alcohol soluble at 20.degree. C. to 25.degree. C., non-reactive with dichromate sensitized polyvinyl alcohol within the temperature range of about 20.degree. C. to 480.degree. C. and vaporizable at a temperature above about 60.degree. C. and below 480.degree. C. Use of the process reduces agglomeration of phosphor particles when used in dry phosphor screening techniques.