Method of coating expanded polystyrene pieces

Details Method of coating expanded polystyrene pieces Method of coating expanded polystyrene pieces

1992-09-03

1995-02-21

Pianalto, Bernard

Coating processes

Foraminous product produced

Filter, sponge, or foam

427282, 427300, 427322, 427421, B05D 132, B05D 312

Patent

active

053913981

ABSTRACT:
Method for the glue spreading of expanded polystyrene pieces by means of spraying an aqueous solution of an adhesive, said method consisting of protecting the portions of the support on which the piece to be glued is placed by means of a film or layer of water, the water level not reaching that of the glue surface plane, so as to protect the surface from being soiled by a glue deposit.
Installation including a support having an indentation for the picking up and prepositioning of the part to be glued and immersed into a water tank equipped with feed means, water drainage overfill evacuation means, means for controlling the level activating said overfill evacuation means, and glue spraying means.
Application for assembling female molds for the production of foundry patterns for disposable patter type molding.

REFERENCES:
patent: 4395184 (1983-07-01), Braden
patent: 4401051 (1983-08-01), Gunther
patent: 4572762 (1986-02-01), Winston
patent: 4640333 (1987-02-01), Martin et al.

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