Apparatus for making an extruded composite structure

Details Apparatus for making an extruded composite structure Apparatus for making an extruded composite structure

1985-11-27

1987-10-13

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Extrusion shaping means

264174, 425114, 425122, B29C 4722

Patent

active

046995790

ABSTRACT:
An extruded composite structure consisting essentially of an outer sheath surrounding an inner core, said outer sheath consisting essentially of an extrudable resin which remains thermoplastic after extrusion and said inner core comprising a substance whose melting point or decomposition temperature is lower than the temperature to which said resin must be heated to be extruded and to the apparatus and process for making such composite structure.

REFERENCES:
patent: 2408398 (1946-10-01), Johnson
patent: 2437263 (1948-03-01), Manning
patent: 3239884 (1966-03-01), Seidel et al.
patent: 3694131 (1972-03-01), Stuart
patent: 3707593 (1972-12-01), Fukada et al.
patent: 3844097 (1974-10-01), Bobkowicz et al.
patent: 3937772 (1976-02-01), Urban et al.
patent: 3947172 (1976-03-01), Myers

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