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:
Apr. 25, 1989
Filed:
Mar. 11, 1988
Arthur L Piepmeier, Jr, Cookeville, TN (US);
Charles M Nunally, Baxter, TN (US);
Porelon, Inc., Cookeville, TN (US);
Abstract
A method for making an ink-impregnated material includes steps of mixing from a plastic powder, a water-soluble salt and a water-soluble, polar organic liquid to form a mixture, heating the mixture to a temperature sufficient to melt the plastic and form a cohesive structure, leaching the salt and polar organic liquid from the structure, drying the structure, and impregnating the structure with an ink. The resulting microporous material has an open-celled network of micropores extending therethrough, which micropores have smooth, rounded internal walls free of fibrous projections. An ink roll made of this material is suitable for use in an apparatus for printing coded images such as bar codes.