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. 28, 1992
Filed:
May. 15, 1990
Leena P Buchwalter, Wappingers Falls, NY (US);
Stephen L Buchwalter, Wappingers Falls, NY (US);
Terrence R O'Toole, Hopewell Junction, NY (US);
Richard R Thomas, Fishkill, NY (US);
Alfred Viehbeck, Stormville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The surface modification of polyimide materials by a chemical process is disclosed to provide a variety of functional groups on the surface. The surface is treated to produce polyamic acid carboxyl groups which are subsequently reacted with epoxies, hydrazines, or alcohols. The carboxyl groups can be also be subjected to other organic reactions, such as reduction with metal hydrides and the like. The versatility and controllability of this process lends itself to promoting adhesion of the polyimide to similarly treated polyimides, other polymers and other substrates as well as combining with metals such as metal catalysts used for depositing conductors on non-conductive surfaces such as circuit boards.