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:
Oct. 14, 1986
Filed:
Apr. 05, 1984
Krishna G Sachdev, Wappingers Falls, NY (US);
Ali Afzali-Ardakani, Katonah, NY (US);
Keith S Pennington, Somers, NY (US);
Mitchell S Cohen, Ossining, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Electroerosion recording materials for 'direct negative' and 'offset master' are provided with a surface protective coating of solid conductive lubricant dispersed in a hydrophilic, crosslinked polymeric matrix. The protective films are especially useful where direct offset masters are produced without removal of non-eroded lubricant film. The recording medium of this invention provides use as a defect-free 'direct negative' and/or 'direct offset master', without requiring the removal of the overlayer prior to use on the printing press. The protective coatings are applied from aqueous dispersions of polymer-particulate compositions and thus avoiding the use of organic solvents.