Invention Grant
- Patent Title: Electret and card assembly and method of manufacture
- Patent Title (中): 驻极体和卡片组装及制造方法
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Application No.: US11513947Application Date: 2006-08-31
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Publication No.: US07972671B2Publication Date: 2011-07-05
- Inventor: Michael A. Riordan , Donnie W. McVay
- Applicant: Michael A. Riordan , Donnie W. McVay
- Agent John M. Harrison
- Main IPC: B32B9/00
- IPC: B32B9/00 ; B32B33/00

Abstract:
This invention includes a card assembly incorporating an electrostatically charged polyolefin film, or electret, removably adhered to a paper stock or card substrate. The electret and card assembly is printable on up to four planar surfaces, with both the electret film and paper stock or card having a front and back side that is printable. When the electret is detached from the card, the charged or “static cling” electret is placeable on and self-adheres to smooth surfaces for graphic information display purposes and the printed card is then utilized for various other purposes. The electret film is removably adhered to the paper stock by a coating or “dots” of adhesive and a release agent may be applied to the back or underside of the electret to prevent premature separation and loss of electrostatic properties while maintaining optimum electret film removability. A method of manufacturing a printable electret and card assembly by integrating an electrically charged or “static cling” electret film and paper stock or card substrate using an adhesive to define a composite structure or assembly having various multiple images that may be disposed in registering relationship with respect to each other.
Public/Granted literature
- US20070044356A1 Electret and card assembly and method of manufacture Public/Granted day:2007-03-01
Information query