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US 4,230,785 AGranted
Pressure sensitive adhesive elecrophotographic reproduction sheets
AssigneeDennison Manufacturing Company
InventorsLee A. Carlson, Richard G. Miekka
Life of this patent
Estimating the term…
Abstract
A pressure sensitive adhesive rendered electrically conductive without adversely affecting pressure sensitive adhesiveness by adding thereto electrically conductive material. Where a conductive pressure sensitive adhesive layer is used in the form of a coating on a backing sheet, the protective release sheet or liner for the pressure sensitive adhesive coating may also be rendered conductive by the inclusion of electrically conductive material therein so that the thickness of the laminate is conductive.
Claims9
An electrographic member which can be used as a mailing label and the like, comprising
- a conductive base member having oppositely positioned outer surfaces,
- an electophotographic layer on one of said surfaces for the formation of an electrostatic image therein,
- a non water-soluble pressure sensitive adhesive layer on the other of said surfaces, and
- a release sheet temporarily overlying said adhesive layer,
- the conductivity of said pressure sensitive adhesive layer being controlled by the addition of a water-soluble conductive material to permit the transport of charges through said adhesive layer in the formation of said electrostatic image without impairment of the adherence of said adhesive layer to said release sheet and to a receiving surface when said release sheet is removed.
2 more elements
Dependencies are inferred from the claim text.