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. 08, 1991
Filed:
Feb. 03, 1989
Applicant:
Inventor:
Peter Y Lo, Midland, MI (US);
Assignee:
Dow Corning Corporation, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
7315 / ; 356237 ;
Abstract
A quality assurance test method utilizing a fluorescent compound formed by reacting at least one aminofunctional organosilicon compound with at least one optical brightener having the formula ##STR1## and wherein R denotes anilino, sulfanilic, acid, metanilic acid, or anilin-2,5-disulfonic acid, and R' is methoxy, methylamino, N-methyl-N-hydroxyethylamino, bis(hydroxyethyl)amino, morpholino, anilino, or diethylamino. The organosilicon fluorescent compound is coated on the substrate and the substrate is placed under an ultraviolet light to check the extensiveness of the coating.