Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Stratified or layered articles
Patent
1985-05-03
1987-09-15
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Stratified or layered articles
156 622, 1565835, 264 25, 425371, B30B 506
Patent
active
046938591
ABSTRACT:
In a method for the continuous pressing of sheet material in a reaction zone between two endless, heated press belts of a double band press at increased process temperatures, the capability for operating at process temperatures which are higher than critical, permissible operating temperatures of the double band press is achieved by heating the press belts in such a way that they have the highest temperature at their outsides facing the sheet material with heat flow through the press belt being effected from the hot outer side to the opposite inner side of the press belt. The heat flow direction in the reaction zone which otherwise leads from a pressure plate to the press belt outer side is thus reversed and, in apparatus for performing the method, heating members are arranged in the vicinity of the press belt on the outer side thereof shortly before the reaction zone.
REFERENCES:
patent: 1638626 (1927-08-01), Fox
patent: 2107249 (1938-02-01), Hepke
patent: 3228062 (1966-01-01), Claus
patent: 3874962 (1975-04-01), Gersbeck et al.
patent: 4324613 (1982-04-01), Wahren
patent: 4402778 (1983-09-01), Goldsworthy
patent: 4573404 (1986-03-01), Held
Fortenberry J.
Woo Jay H.
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