Process and device for the continuous production of plates from

Details Process and device for the continuous production of plates from Process and device for the continuous production of plates from

1980-09-05

1982-10-05

Anderson, Philip

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

264 462, 246 465, 246 51, 425224, 425817C, B29D 2704

Patent

active

043528953

ABSTRACT:
The present invention provides a process for the continuous production of plates, which are optionally laminated on all sides, from foamed synthetic resins and especially from polyurethane hard foams, in which a foaming synthetic resin is passed through a channel formed by endless running bands, wherein the side bands are subjected to external pressure and press towards the middle of the plate, said side bands being pressed in the course of the foaming by the foaming pressure thereby arising into their actual side-limiting positions, said side bands finally assuming the positions which correspond to the desired plate breadth and contour.
The present invention also provides a device for taking up the lateral foam pressure in continuously operating band plants, comprising counterpressure devices which exert on the side bands, adapted to move in the plane of the plate, an optimum counterpressure for the reaction characteristics of the foaming synthetic resin.

REFERENCES:
patent: 3240846 (1966-03-01), Voelker
patent: 3249486 (1966-05-01), Voisinet et al.
patent: 3620863 (1971-11-01), Sullhofer
patent: 3836298 (1974-09-01), Ernst
patent: 4152385 (1979-05-01), Tabler

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