Invention Grant
- Patent Title: Prismatic retroreflective article bearing a graphic and method of making same
- Patent Title (中): 具有图形的棱镜式反光制品及其制造方法
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Application No.: US13130833Application Date: 2009-11-20
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Publication No.: US08668341B2Publication Date: 2014-03-11
- Inventor: Warren P. Caswell , Chester A. Bacon, Jr. , Stewart H. Corn
- Applicant: Warren P. Caswell , Chester A. Bacon, Jr. , Stewart H. Corn
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Nicole J. Einerson
- International Application: PCT/US2009/065228 WO 20091120
- International Announcement: WO2010/077474 WO 20100708
- Main IPC: G02B5/124
- IPC: G02B5/124

Abstract:
A prismatic retroreflective article bearing a graphic and a method of making the same. The prismatic retroreflective article can include an optical layer including a front surface and a rear structured surface defined at least partially by internally reflecting cube-corner optical elements. The rear structured surface can be infused with a graphic, such that the prismatic retroreflective article retroreflects the graphic when viewed from the front surface of the optical layer. The method can include providing a graphic donor sheet, coupling the graphic donor sheet to the prismatic retroreflective article to form a composite, and applying heat and pressure to the composite to transfer at least a portion of the sublimation colorant from the graphic donor sheet to the rear structured surface of the optical layer.
Public/Granted literature
- US20110228393A1 PRISMATIC RETROFLECTIVE ARTICLE BEARING A GRAPHIC AND METHOD OF MAKING SAME Public/Granted day:2011-09-22
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