Process for the continuous production of a length of stratifield

Details Process for the continuous production of a length of stratifield Process for the continuous production of a length of stratifield

1981-09-25

1983-11-29

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156242, 156322, 156499, 264112, 264126, 428207, 428240, B29J 500, B32B 1700, B32B 518, B29D 2700

Patent

active

044179324

ABSTRACT:
A process for the continuous production of a sheeting of stratified material from synthetic resin foam particles especially particles of crosslinking polyethylene includes the steps of scattering foam particles onto a conveying means, preheating the foam particles during conveyance, superficially to a temperature in the range between 100.degree. and 160.degree. C.; thereafter feeding the thus-preheated foam particles to means defining a free falling zone; causing the preheated particle to free-fall within said zone; further heating the particles during falling, to a temperature of at least 200.degree. C., and, at the end of the free fall, piling up the particles on a support surface; compacting the piled-up particles into a sheet-like layer on said surface; and sizing the preliminarily compacted sheet with simultaneous cooling.

REFERENCES:
patent: 2987102 (1961-06-01), Heinrichs
patent: 3488411 (1970-01-01), Goldman
patent: 3746107 (1973-07-01), Hoegger
patent: 3986918 (1976-10-01), Berner
patent: 3992501 (1976-11-01), Tatzel et al.

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