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:
Nov. 22, 1983
Filed:
Dec. 30, 1982
Jerome J Cuomo, Lake Lincolndale, NY (US);
Pamela A Leary, Wappingers Falls, NY (US);
Dennis S Yee, Putnam Valley, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The invention is a room-temperature dry process for texturing copper on polyester, to improve adhesion of coatings to the copper surface through mechanical as well as chemical bonding. An iodine plasma is produced by backfilling an evacuated chamber with iodine and applying an RF potential. The iodine plasma includes both positive and negative iodine ions. Unprotected surface areas of the copper form a copper iodide; when the copper iodide is removed, the remaining surface is highly textured. The associated polyester is not damaged. The copper iodide is conveniently removed by a 10% hydrochloric acid solution which has no damaging effects on the associated polyester or on the metallic copper, or on associated polyester in a plastic laminated with copper.