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. 08, 2014
Filed:
Aug. 31, 2010
Pingfan Wu, Woodbury, MN (US);
Junkang Jacob Lui, Woodbury, MN (US);
Robert L. W. Smithson, Mahtomedi, MN (US);
Rachel M. Lucking, Oakdale, MN (US);
Panu K. Zoller, River Falls, WI (US);
Jeffrey O. Emslander, Stillwater, MN (US);
Kanta Kumar, Woodbury, MN (US);
Pingfan Wu, Woodbury, MN (US);
Junkang Jacob Lui, Woodbury, MN (US);
Robert L. W. Smithson, Mahtomedi, MN (US);
Rachel M. Lucking, Oakdale, MN (US);
Panu K. Zoller, River Falls, WI (US);
Jeffrey O. Emslander, Stillwater, MN (US);
Kanta Kumar, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A process to mark a multilayered article with a laser (). The multilayered article () includes a laser-markable layer () having at least one organic polymer and at least one light-sensitive pigment therein, and including at least one release agent associated with the laser-markable layer. Laser-marking of the laser-markable layer is accomplished by directing laser radiation () into the multilayered article through the release agent () to induce an interaction between the light-sensitive pigment and the organic polymer. As a result of the interaction, a visually perceptible marking () is formed in the article. The laser-marked article includes a laser-markable layer and a first release agent associated with a surface of the laser-markable layer. The marking(s) in the laser-markable layer is visible through the layer of release agent, and the marking is a result of the laser-induced interaction between the light-sensitive pigment and the organic polymer.