Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1985-12-31
1988-11-22
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156285, 1563066, 156313, 156497, 156498, 156500, 29 911, 264101, 425407, 425408, 4254051, B32B 3106
Patent
active
047863510
ABSTRACT:
A machine for laminating fabric (123) to open cell cushion foam (124) while forming design lines in the foam is disclosed. The machine comprises a top hollow die (21) having perforations (38) and a complementary, hollow bottom die (54) which also has perforations (130). Hot melt adhesive (125) is interleaved between fabric (123) and foam (124). Top die (21) is preheated to just below the melt point of adhesive (125); then dies (21) and (54) are closed against the layered workpiece, with top die (21) contacting the face of fabric (123). A shot of superheated steam, e.g., at 80 psig and 700.degree. F., is ejected from perforations (38) and (130) to melt adhesive (125). Then a vacuum is applied to the perforations to pull ambient air through the workpiece and cool it. The resolidified ashesive (125) holds foam (124) in its deformed shape and laminates fabric (123) to the foam.
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Avery Michael L.
Elliott George M.
Solomon Archie
Astechnologies, Inc.
Weston Caleb
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