Apparatus for the production of a flame resistant to nonflammabl

Details Apparatus for the production of a flame resistant to nonflammabl Apparatus for the production of a flame resistant to nonflammabl

1994-05-10

1995-01-24

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work feeding or handling means

156 622, 156549, 156555, 156580, 1565835, B32B 3120

Patent

active

053840046

ABSTRACT:
A flame resistant to nonflammable composite panel (86) is produced from a nonextrudable core mixture (24) with a pourable, nonflammable filling material and a binder, and on both sides cover strips flexibly bonded to the core. For a continuous production of the composite panel (86) in one operation, the core mixture (24) is poured onto an inrunning lower cover strip (48), in contact with a lower adhesive film (16) facing the core mixture (24), and a pile is formed there, extending over the entire width of the adhesive film, both [lacuna] continuously and uniformly drawn through a V gap (40) and compacted there for the first time and calibrated to thickness, an upper adhesive film (30), upwardly limiting the precompacted core mixture (24'), is fed in and brought into contact with a continuously fed cover strip (46) and the sandwich is pressed with further compaction, heated, cooled and cut to the final length of the composite panel (86). The apparatus for carrying out the process preferably comprises a double-belt press (43 ) for the concluding pressing and heating, for maintaining the temperature and for cooling.

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patent: 3616173 (1971-10-01), Green et al.
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patent: 4810445 (1989-03-01), Lamb et al.
patent: 5148645 (1992-09-01), Lehnert et al.

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