Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1989-07-19
1991-12-31
Gallagher, John J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156152, 15624427, 1563099, 156321, 156322, 1563244, 296 391, 296146, 428 95, B32B 3116
Patent
active
050768700
ABSTRACT:
An improved carpet, an improved method of making a carpet, and an improved method of attaching a carpet to a motor vehicle door trim panel. The improved carpet comprises an outer woven polypropylene pile layer, an inner nonwoven polypropylene layer, and a central intermediate recycled rubber layer. The carpet is formed by extruding a melted mixture of rubber and polypropylene particles to form a hot central sheet and thereafter adhering a woven polypropylene layer to the upper face of the hot sheet and a nonwoven polypropylene layer to the lower face of the hot sheet. Carpet is attached to the lower portion of a door trim panel of a motor vehicle by heating the lower portion of the door trim panel with hot air until the panel is tacky and thereafter pressing the invention carpet downwardly against the tacky surface of the door trim panel to form a firm welded marriage as between the carpet and the panel. Alternatively, the marriage of the carpet and panel may be achieved by ultrasonic energy applied through the door trim panel to the interface between the door trim panel and the carpet.
REFERENCES:
patent: 2554150 (1951-05-01), Moore
patent: 3014829 (1961-12-01), Curtin
patent: 3577581 (1971-05-01), Stata
patent: 3788917 (1974-01-01), Linda
patent: 4123577 (1978-10-01), Port et al.
patent: 4751130 (1988-06-01), Grossmann et al.
patent: 4761318 (1988-08-01), Ott et al.
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