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. 02, 2005
Filed:
Mar. 18, 2003
Jeffrey George Zaloom, Waukesha, WI (US);
Zhengzhe Song, Vernon Hills, IL (US);
Jeffrey George Zaloom, Waukesha, WI (US);
Zhengzhe Song, Vernon Hills, IL (US);
Printing Developments, Inc., Racine, WI (US);
Abstract
A copper clad metal printing plate can be coated with an azide-containing photoresist comprising a polyformal resin together with a modified polyformal resin that has up to 100% of its hydroxyl groups converted to carboxyl groups, an organo azide and a photosensitive dye that absorbs light at the frequency of a patterning laser and converts it to heat energy. This de-crosslinks the resin that has been exposed to the laser light. Preferably the photoresist is flood exposed with ultraviolet light prior to laser exposure. The photoresist becomes soluble in the laser-exposed areas, exposing the underlying copper after development. The printing plates are completed by etching away the copper in the exposed areas, removing the remaining photoresist, thereby providing a patterned copper layer on the printing plate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile