Apparatus for producing composite bodies from layers of plastic

Details Apparatus for producing composite bodies from layers of plastic Apparatus for producing composite bodies from layers of plastic

1991-02-14

1993-07-20

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With casting, plastic molding, or extruding means

156197, 156204, 156207, 156245, 156264, 156322, 156522, 156523, 156527, 156574, 156580, 156582, B32B 3104

Patent

active

052289443

ABSTRACT:
An apparatus for the continuous production of composite laminate bodies including panels and cylindrical pipes comprises a frame, a laminating mold, a sheet supply roller, a movable pressure roller, at least two preheating rollers and a heating device, wherein the pressure roller, preheating roller and heating device are mounted on the frame, the laminating mold is movable and is adjacent to the frame to form a laminating gap, and the heating device is provided near the laminating gap, so that the sheet travels from the sheet supply roller to the preheating rollers and then to the laminating gap where the sealing material on the sheet surface is heat melted just before being pressed against the laminating mold. By successive lamination of layers of sheet material over the last sheet of material or last section of film by selectively melting the sealing coating on the contact surface of the sheet of material with the heating device just prior to pressing the sheet of material against the laminating mold, an improved composite body having the desired level of thickness with improved load bearing capacity is obtained with increased time efficiency and substantial reductions in potential damages to the product. A process for producing composite bodies from layers of laminated sheets is also disclosed.

REFERENCES:
patent: 3044921 (1962-07-01), Wentworth et al.
patent: 3074839 (1963-01-01), May et al.
patent: 3166456 (1965-01-01), White et al.
patent: 3971691 (1976-07-01), Cairns

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