Fusible bonding sheet and methods of fabrication thereof

Details Fusible bonding sheet and methods of fabrication thereof Fusible bonding sheet and methods of fabrication thereof

1996-08-20

1998-02-10

Yamnitzky, Marie

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Release layer

428 419, 428 415, 428343, 428347, 428349, 428200, 428201, 428202, 428212, 428134, 428135, 428138, 428913, B32B 310

Patent

active

057166870

ABSTRACT:
A fusible adhesive sheet includes a heat-sensitive substrate having a geometrical configuration of intersecting diagonal lines with diamond-shaped voids between the lines. A lattice of pressure-sensitive adhesive is positioned on the substrate and has intersecting diagonal lines with diamond-shaped voids in between the lines in a pattern different from that for the substrate. Removable release liners are provided. In another form, the lattice work of pressure-sensitive adhesive is on a solid substrate of heat-sensitive adhesive. To make the heat-fusible sheet, the heat-sensitive adhesive is fed into the nip between a gravure roller and elastic surfaced roller. The surface of the gravure roller is provided with a series of valleys. The pressure-sensitive adhesive in liquid form is applied to the surface of the gravure roller and deposited onto the heat-sensitive adhesive and cured with heat. In another process the pressure-sensitive adhesive and the heat-sensitive adhesive substrate are separately formed on separate release liners, and thereafter joined. In another process the pressure-sensitive adhesive is applied by spraying it onto the surface of the heat-sensitive substrate.

REFERENCES:
patent: 2860081 (1958-11-01), Eiken
patent: 3881041 (1975-04-01), Glienke
patent: 3916046 (1975-10-01), Youngberg
patent: 4880683 (1989-11-01), Stow

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