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:
Aug. 21, 1979
Filed:
Feb. 06, 1978
Applicant:
Inventors:
Jean-Paul Ehrbar, La Chaux-de-Fonds, CH;
Claude Ganguillet, Neuchatel, CH;
Assignee:
Ebauches S.A., Neuchatel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 40 ; 427300 ; 427306 ; 427259 ;
Abstract
Method for pretreating a plastic substrate prior to metallization thereof by electroless metal deposition by applying a brush discharge thereto, the current density of which is higher than 0.5 mA/cm.sup.2, the tension of which being less than the breakdown tension of the substrate and the total charge of energy applied being no higher than 20mC/cm.sup.2 ; the treatment comprising plural short spaced exposures of said substrate to said discharge. Various masking means are employed to provide selectively treated and untreated portions on the substrate.