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. 15, 1995
Filed:
Aug. 14, 1991
Applicant:
Inventors:
James E Rychwalski, Medway, MA (US);
Paul J Ciccolo, Ashland, MA (US);
Robert B Currie, Berkley, MA (US);
Philip D Knudsen, Northboro, MA (US);
Assignee:
Shipley Company Inc., Marlborough, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427306 ; 427304 ; 427305 ; 4274431 ;
Abstract
A process for promoting the adhesion of metal to thermoplastic substrates such as polyetherimides. The improvement comprises conditioning the substrate by treating with an inorganic hydroxide solution prior to subsequent steps of etching and deposition of a metal coating. Use of the conditioner promotes increased adhesion between the substrate and the metal without loss of flexural strength of the substrate throughout subsequent processing steps.