Adhesive-backed chalkboard wall covering
AssigneeWallCandy LLC
InventorsAllison T. Krongard, John A. Boris
Life of this patent
Estimating the term…
Abstract
An improved chalkboard marking surface comprises a rollable, flexible sheet of polypropylene having two sides that are opposite one another, each having a generally flat surface. On one side, a layer of adhesive is applied to the polypropylene substrate. On the same side of the polypropylene substrate, a selectively removable release sheet is preferably applied to the layer of adhesive for the purpose of keeping foreign materials from attaching to the adhesive when the chalkboard surface is not in use. On the reverse side of the polypropylene substrate, a layer of ink is applied which forms an abrasive surface after it dries, and importantly, results in a chalkboard surface that is lighter in weight.
Claims19
A chalk marking surface suitable for mounting on a substantially vertical surface comprising:
- a substrate having a first side and a second side, each of said first side and said second side being generally flat;
- a layer of adhesive applied on said first side and adapted for selective repeated attachment of said chalk marking surface to said vertical surface and for selective repeated detachment of said chalk marking surface from said vertical surface without any substantial resulting damage to said vertical surface;
- and
- wherein said second side comprises at least one coating of ink comprising a matte finish for accepting chalk marks and, optionally, a dye or pigment.
A marking surface comprising:
- a section of polypropylene having a first side and a second side, each of said first side and said second side being generally flat;
- a layer of adhesive applied on said first side, said layer of adhesive being adapted to releasably secure said marking surface in a selectively repetitive fashion to a substantially vertical wall without any substantial resulting damage to said wall;
- and
- wherein at least one coating of ink is applied on said second side, said ink comprising a matte varnish, and, optionally, a pigment or dye, and forming an abrasive matte finish for retaining chalk markings on said surface.
A chalk marking surface suitable for mounting on a substantially vertical surface comprising:
- a substrate having a first side and a second side, each of said first side and said second side being generally flat;
- a layer of adhesive applied on said first side and adapted for selective repeated attachment of said chalk marking surface to said vertical surface and for selective repeated detachment of said chalk marking surface from said vertical surface without any substantial resulting damage to said vertical surface;
- and
- said second side comprising at least two coatings of ink and said coatings of ink forming an abrasive exterior when dry for accepting chalk marks.
Dependencies are inferred from the claim text.