Unitary stack of repositional paper sheets
AssigneeP. R. Donahue Incorporated
InventorP. Richard Donahue
Life of this patent
Estimating the term…
Abstract
A unitary stack of paper sheets has alternating individual paper sheets and double release liners which are releasably bonded together in a manner whereby an individual paper sheet is easily removed and used as a base. Each paper sheet in the unitary stack has a pressure sensitive adhesive partially covering each face thereof in approximate aligned areas of the respective faces. In use, an individual paper sheet is readily removed from the unitary stack and one or more release liners removed from the individual sheet to fully expose the front face and the back face of the individual sheet. The front face or the back face of the individual sheet is then adhered to the substrate, and an item posted on its opposed face.
Claims24
A unitary stack of alternating paper sheets and double release liners releasably bonded together in a manner to maintain the integrity of the stack and to individually readily remove each paper sheet from the stack for adhering to a substrate so as to provide a base for temporarily posting an item, said unitary stack comprising:
- (a) a set of individual repositional paper sheets in registry with one another, each said paper sheet having a front face and a back face with a pressure sensitive adhesive partially covering each said face in approximate aligned areas of the respective faces to create an adhesive-free area on said front face and said back face extending from one edge of the paper sheet for grasping;
- and
- (b) double release liners between each of the individual paper sheets, each said release liner adjacent one individual paper sheet and adjacent the other of said double release liners and further each of said double release liners being a double-sided silicone coated paper sheet,
- whereby each individual repositional paper sheet is available for ready grasping, removing from the stack, and adhering to the substrate.
A unitary stack of individual uniformly shaped paper sheets and double release liners releasably held together so as to maintain the integrity of the stack yet allow each individual sheet thereof to be readily removed therefrom to adhere to a substrate for temporarily posting an item thereon, said unitary stack comprising:
- (a) at least 10 individual repositional paper sheets, each said paper sheet ranging from about one-fourth inch to about one and one-half inch in width and about one inch to about three inches in length and having a front face and a back face with said front face and said back face having (i) an adhesive area extending from a top edge of the sheet covered with from about 0.4 mils to about 0.8 mils of a pressure sensitive acrylic adhesive in the form of microspheres and (ii) an adhesive-free area extending from a bottom edge of the paper sheet to the adhesive area such that each said adhesive area is in approximate aligned areas of the respective faces and each said adhesive-free area is in approximate aligned areas of the respective faces;
- (b) a set of double release liners having non-stick surfaces with each of said double release liners in the set being positioned between two individual paper sheets so that said paper sheets are never in contact with one another, each of said release liners having substantially the same shape and size as the individual paper sheets;
- and
- (c) a binding material connected at least with each top edge of the paper sheets and connected to side edges of the paper sheets for holding the paper sheets in registry,
- whereby each individual repositional paper sheet can be readily grasped for removal from the stack and adhered to the substrate.
A unitary stack of paper sheets in pad form, each paper sheet having opposed, adhesive-bearing surfaces for releasably attaching an item to a surface, said stack comprising:
- (a) a plurality of substantially equally-sized paper sheets including an uppermost paper sheet, a lowermost paper sheet and intermediate paper sheets, each paper sheet having a front face and a back face facing in a direction opposite from the front face, a top edge, a bottom edge spaced from the top edge, and a pair of laterally spaced side edges extending between the top and bottom edges, wherein the paper sheets are positioned in face-to-back relationship with each other, further each paper sheet having a front face layer of pressure-sensitive adhesive firmly attached to and covering a portion of the front face of the sheet, and a back face layer of pressure-sensitive adhesive firmly attached to and covering a portion of the back face of the sheet, wherein each of the pressure-sensitive adhesive layers extends continuously from the top edge of the sheet on each of the front and back faces to a position between the top and bottom edges of the sheet so that each of the front and back areas of the sheet includes free areas that are devoid of adhesive to facilitate gripping of a sheet for removal from the pad, further the adhesive layers each extending continuously between the side edges of the sheet to define on each face of the sheet an area that is completely covered with adhesive and an area that is free of adhesive;
- (b) a bottom release cover to which the lowermost paper sheet is releasably attached by connection of the back face layer of adhesive of the lowermost paper sheet with the bottom release cover, the bottom release cover having a size and shape that is substantially equal to that of the paper sheets;
- (c) a top release cover to which the uppermost paper sheet is releasably attached by connection of the front face layer of adhesive of the uppermost paper sheet with the top release cover, the top release cover having a size and shape to completely cover the front face layer of pressure sensitive adhesive of the uppermost paper sheet and to extend at least partially over the free area of the front face of the uppermost paper sheet;
- (d) a set of double-sided silicone coated paper sheet release liners, wherein each intermediate paper sheet positioned between the uppermost paper sheet and the lowermost paper sheet carries an upper release liner in overlying relationship with the front face layer of pressure-sensitive adhesive and releasably adhered thereto, and a lower release liner in underlying relationship with the back face layer of pressure-sensitive adhesive and releasably adhered thereto, so that two release sheets are positioned between each intermediate paper sheet and between intermediate paper sheets that are adjacent the uppermost paper sheet and the lowermost paper sheet of the stack, to allow a user to initially peel from the stack the top release cover and then to selectively peel from the stack either a paper sheet devoid of release liners or a paper sheet having one or more release liners releasably attached thereto;
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- (e) a binding material connected at least with each of the top edges of the paper sheets to hold the paper sheets in pad form to define a unitary stack of paper sheets.
Dependencies are inferred from the claim text.