Coating processes – Coating remains adhesive or is intended to be made adhesive – Pressure sensitive adhesive
Utility Patent
1993-01-21
2001-01-02
Davis, Jenna (Department: 1771)
Coating processes
Coating remains adhesive or is intended to be made adhesive
Pressure sensitive adhesive
C427S208800, C428S041800, C428S354000, C428S3550RA
Utility Patent
active
06168829
ABSTRACT:
BACKGROUND AND SUMMARY OF THE INVENTION
Pads of paper with repositional adhesive applied to one of the faces are an extremely popular items for both office and household use. The utility of such a product is, of course, in the use of the repositional adhesive which allows attachment—though readily releasable—to a wide variety of surfaces, and objects, including other pieces of paper. Some consumers, however, would like to be able to use the same principles for attachment of pieces of paper, or other objects, that are other than those commercially supplied from vendors of pads with repositional adhesive, such as 3M and Moore Business Forms. According to the present invention, this highly desirable goal is accomplished by construction of a double sided tape which can be applied to any object, such as a piece of paper, providing to that object the same benefits as are provided by commercially available pads.
According to one aspect of the present invention, a method of making a double sided tape is provided. The method comprises the following steps: (a) Applying a first adhesive coat to an elongated tape substrate first face. (b) Applying a second adhesive coat to the substrate second face. (c) At least one of steps (a) and (b) being practiced to apply a repositional adhesive. (d) Applying a release liner to the first adhesive to provide a tape. And then, (e) rolling the substrate into a roll with the second adhesive engaging the release liner.
There typically is also the further step (prior to step (e)) of making spaced separation-facilitating manifestations in the tape to allow ready detachment of lengths of substrate, adhesive and release liner from each other. Both steps (a) and (b) may be practiced to apply repositional adhesive, or a permanent adhesive may be applied in the practice of one of steps (a) and (b). Also, a tie coat may be provided to the first and second (or one of the other) faces of the substrate prior to application of the adhesive thereto to facilitate adherence of the adhesive to the substrate.
The invention also comprises a double faced tape. The double faced tape comprises: An elongated tape substrate having first and second faces. First and second adhesives operatively associated with the first and second faces, at least one of the adhesives comprising a repositional adhesive; and a release liner applied to one of the first and second adhesives. A tie coat may be provided between at least one of the first and second adhesives and the first and second substrate faces. Both adhesives may be repositional or one may be permanent. Also, spaced separation-facilitating manifestations, such as perforations, slits or notches, may be disposed along the length of the tape to allow ready separation of portions of the tape from each other. Desirably, the tape is in roll form, with a second adhesive on top of a release liner (which covers the first adhesive), in a spiral configuration.
According to another aspect of the present invention, there is provided a method of using a double sided tape having first and second faces with adhesive on both faces, including repositional adhesive on the first face. The method comprises the steps of: (a) applying the second adhesive to a first object so that the second adhesive extends outwardly from the first object; and (b) causing a second object to releasably come into contact with the first adhesive, and ultimately removing the second object from contact therewith.
Where the second adhesive is permanent adhesive, step (a) is practiced to permanently affix the tape to a fixed object, such as a shelf, furniture edge or a piece of paper. Where both adhesives are repositional, there is the further step of readily removing the tape from the first object and applying it to a third object. A release liner is typically provided on tape covering one of the adhesives, and thus there is the further step of removing the release liner prior to the practice of one or both of steps (a) and (b). Desirably, the tape is in roll form and there are the further steps of (c) unrolling the tape from the roll, and (d) separating a length of tape from the roll. Step (d) is preferably practiced by separating the tape along predefined, spaced, separation-facilitating manifestations (such as perforations) along its length.
It is a primary object of the present invention to allow the desirable features of pads with stick-on adhesive to be applied to numerous other office and household products and uses. This and other objects of the invention will become clear from an inspection of the detailed description of the invention and from the appended claims.
REFERENCES:
patent: 2206899 (1940-07-01), Kellgren
patent: 4215432 (1980-08-01), Smith
patent: 4554193 (1985-11-01), Erickson
patent: 4599265 (1986-07-01), Esmay
patent: 4839206 (1989-06-01), Waldenberger
patent: 4942071 (1990-07-01), Frye
patent: 5130185 (1992-07-01), Ness
Russ Timothy J.
Smith Francis R.
Davis Jenna
Moore Business Forms Inc.
Nixon & Vanderhye P.C.
LandOfFree
Double faced tape with repositional adhesive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Double faced tape with repositional adhesive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double faced tape with repositional adhesive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2486562