Appeal No. 95-0876
Application 08/006,517
column 1, lines 24-27. Kellgren further discloses that when it is desirable to remove the
sheet material, it is only necessary to pull it free. Kellgren also discloses that either the
attached sheet or the double-sided tape will be pulled free and then if the double-sided
tape still adheres to the substrate, it can be removed easily. See column 1, lines 29-33.
Thus, there can be little doubt that the Kellgren patent discloses a double-sided
repositional tape.
With respect to the method of making, Figure 2 of Kellgren shows applying a first
and second adhesive coat to elongated tape substrate on the first and second faces
thereof by way of a bath of pressure sensitive adhesive and a volatile solvent in coating
tank 6. After the solvent is removed in a drying oven 20, a temporary liner is added to the
double-sided tape. In Figure 3, a dilute bath of the pressure sensitive adhesive is added
to the tape substrate in tank 15 before the tape is coated with its main adhesive.
Therefore, the dilute pressure sensitive adhesive comprises a tie layer to join the principal
adhesive layers to the substrate as shown in Figure 3. Finally with regard to Figure 4,
Figure 4 shows a removable liner being applied to the tape and the tape being slit before
the tape is wound into a spiral to be shipped to the user. Claims 1, 3, 4, 8, 9, 13, 17, 20,
21, 22, and 24 are rejected under 35 U.S.C. § 102(b) as clearly anticipated by Kellgren.
As noted above, Kellgren discloses all the limitations of the method of making the tape, the
method of using the tape, and the tape, per se.
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