Extruder head for regulating a process of applying a foamed plas

Details Extruder head for regulating a process of applying a foamed plas Extruder head for regulating a process of applying a foamed plas

1980-05-09

1981-12-08

Anderson, Philip

Plastic article or earthenware shaping or treating: apparatus

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

Extrusion shaping means

264 25, 264 459, 264174, 366 81, 366145, 366146, 425209, 425817C, B29F 302, B29F 310, B29D 2700

Patent

active

043045375

ABSTRACT:
The invention concerns an extruder head for regulating the temperature of a flow of molten plastic containing a foaming agent. In the flow passage of the extruder head is arranged a mixer which is inductively heated and transfers heat to the plastic flow thereby regulating the temperature thereof during the passage through the extruder head.

REFERENCES:
patent: 2573440 (1951-10-01), Henning
patent: 2583329 (1952-01-01), Eckert
patent: 2750627 (1956-06-01), Gray
patent: 2752633 (1956-07-01), Weitzel
patent: 2848739 (1958-08-01), Henning
patent: 3114171 (1963-12-01), Colombo
patent: 3129459 (1964-04-01), Kullgren et al.
patent: 3253300 (1966-05-01), Gove et al.
patent: 3422493 (1969-01-01), Heston
patent: 4181647 (1980-01-01), Beach
"Wire and Cable Coaters' Handbook". First Edition, Wilmington, Delaware, E. I. Dupont de Nemours and Co., Inc., .COPYRGT.1968, pp. 18-19.

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