Apparatus for producing thick slabs of thermoplastic synthetic r

Details Apparatus for producing thick slabs of thermoplastic synthetic r Apparatus for producing thick slabs of thermoplastic synthetic r

1979-08-16

1981-12-08

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With casting, plastic molding, or extruding means

156243, 15624411, 15624412, 15624427, 425335, 425520, B29D 702

Patent

active

043046223

ABSTRACT:
An apparatus for producing thick slabs of thermoplastic synthetic-resin material comprises a pair of extruders each extruding a half-slab strand to a respective roller assembly, the roller assemblies having final rollers which form a consolidation nip between them in which the two half slabs are bonded together. Preferably the half slabs and the roller assemblies are mirror symmetrically constructed and the half slabs can be formed with longitudinal compartments which can be filled with a foamed synthetic-resin material.

REFERENCES:
patent: 2358176 (1944-09-01), MacDonald
patent: 3658978 (1972-04-01), Ancker
patent: 3843434 (1974-10-01), Heiks et al.
patent: 3844870 (1974-10-01), Donoghue et al.
patent: 3890078 (1975-06-01), Straumans
patent: 3930774 (1976-01-01), Brand et al.

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