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. 18, 1998
Filed:
Sep. 11, 1996
Edward C Robinson, New Kensington, PA (US);
Robert E Bombalski, New Kensington, PA (US);
Thomas L Levendusky, Greensburg, PA (US);
Jean Ann Skiles, Gibsonia, PA (US);
Mark L Weaver, Allison Park, PA (US);
Nickolas C Kotow, Bethel Park, PA (US);
Aluminum Company of America, Pittsburgh, PA (US);
Abstract
A printing plate is made by coating a metal substrate with a polymer layer having an outer surface, coating the polymer layer with solid particles having an average particle size of less than about 30 microns, and compressing the solid particles so that most of them are below the polymer layer outer surface. The solid particles are preferably alpha-alumina particles having an average size of about 1-10 microns. The printing plate has improved wear resistance.