Meltblowing die

Details Meltblowing die Meltblowing die

1990-10-17

1992-09-08

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, 425145, 4253822, 425463, 425464, B29C 4712, D01D 514

Patent

active

051456893

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: 3488806 (1970-01-01), De Cecco et al.
patent: 3970417 (1976-07-01), Page
patent: 4050866 (1977-09-01), Kilsdonk
patent: 4645444 (1987-02-01), Lenk et al.
patent: 4708619 (1987-11-01), Balk
patent: 4785996 (1988-11-01), Ziecker et al.
patent: 4818463 (1989-04-01), Buehning
patent: 4923706 (1990-05-01), Binley et al.
patent: 4983109 (1991-01-01), Miller et al.

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