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:
Jan. 05, 1988
Filed:
Nov. 28, 1986
Applicant:
Inventors:
Robert W Wolfe, Wysox, PA (US);
Harry O Schulze, Wyalusing, PA (US);
Assignee:
GTE Products Corporation, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 68 ; 427 68 ; 427201 ; 427219 ; 4273722 ;
Abstract
A process is disclosed for bonding pigment particles to phosphor particles. The process involves forming a relatively uniform blend of a phosphor, one or more pigments, colloidal silicon dioxide, and water, with the amount of water in the blend being no greater than about 10% by weight, and heating the blend at a temperature of at least about 150.degree. C. to produce a pigmented phosphor having an overcoating of silicon dioxide.