Method of bonding a seat trim cover to a foam cushion utilizing

Details Method of bonding a seat trim cover to a foam cushion utilizing Method of bonding a seat trim cover to a foam cushion utilizing

1994-09-02

1996-07-09

Yoder, Michele K.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156212, 1562724, 156285, 156311, 1563797, 156382, B32B 3104, B32B 3120, B29C 6514

Patent

active

055340970

ABSTRACT:
The method includes using a contoured mold (22) with copper tubing (40) coiled and embedded beneath the contoured surface. The fabric or trim cover (14) and an adhesive film (16) is placed on the mold (22) and drawn by a vacuum in to contour with the mold (22). The foam cushion (12) is placed thereon in compression. The adhesive film (16) includes a polyamide resin doped with micron sized ferromagnetic particles. Copper coil tubing (40) is energized by an oscillatory radio frequency generator (50) to produce a magnetic flux to induce eddy currents in the ferromagnetic particles to generate heat to thereby melt the polyamide resin. The adhesive film melts, creating a bond between the trim cover (14) and the foam cushion (12).

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patent: 5129977 (1992-07-01), Leatherman
patent: 5254197 (1993-10-01), Klems

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