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:
Jul. 27, 1999
Filed:
Aug. 08, 1997
Roger James Timmer, Lowell, MI (US);
Lacks Industries, Inc., Grand Rapids, MI (US);
Abstract
A process for metal plating a high impact, high temperature plastic suitable for forming trim elements of an automobile. The process is particularly directed to plating an elastomer-modified PPA resin, and entails closely controlled process steps that include selectively etching the elastomer and the PPA matrix with a solution containing chromic acid, then effectively removing from the substrate any retained chromium which would adversely affect the ability of metal plating to adhere to the substrate, and thereafter protecting the substrate from attack by sulfuric acid. The process is particularly effective for electroplating a PPA resin modified with about five to about 30 weight percent elastomeric materials.