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:
Mar. 27, 1990
Filed:
Oct. 03, 1986
Applicant:
Inventors:
James R Melcher, Lexington, MA (US);
Stuart Inkpen, Arlington, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427 26 ; 427 39 ; 427 58 ;
Abstract
Multicolored tone paint compositions containing flat metallic particles are produced by subjecting an electrically conductive substrate coated with the paint composition, while wet, to ion current. The field caused by the corona current vertically orients the metallic particles in that portion of the paint subjected to the current while the metallic particles in the unexposed paint remain in horizontal orientation.