Meltblowing die

Details Meltblowing die Meltblowing die

1992-08-24

1993-12-14

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

Orifice for filaments or fibers

425 7, 425464, B29C 4712, D01D 500

Patent

active

052696707

ABSTRACT:
A meltblowing die assembly features (a) intermittent operation, (b) modular valve actuator to selectively shut off polymer flow, (c) an in-line electric heater, and (d) meltblowing units arranged in side-by-side relationship.

REFERENCES:
patent: 3379811 (1968-04-01), Hartmann et al.
patent: 3888610 (1975-06-01), Brackmann et al.
patent: 3985481 (1976-10-01), Brackmann et al.
patent: 4785996 (1988-11-01), Ziecker et al.
patent: 4818463 (1989-04-01), Buehning

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