Apparatus for making multicomponent meltblown fibers and webs

Details Apparatus for making multicomponent meltblown fibers and webs Apparatus for making multicomponent meltblown fibers and webs

2006-03-07

2006-03-07

Del Sole, Joseph S. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

C425S464000, C425S382200, C425SDIG002

Reexamination Certificate

active

07008207

ABSTRACT:
An extrusion die for meltblowing molten polymers having a row of die orifices each having at least two separate polymer supply ports entering from an entrance portion of the die, each of the polymer supply ports communicating with separate rows of extrusion capillaries having exit openings at an exit portion of the die, gas supply ports entering from the entrance portion of the die and arranged laterally to the polymer supply ports, the gas supply ports communicating with gas jets extending through the die and arranged laterally to the exit openings of the extrusion capillaries, wherein the rows of extrusion capillary exit openings and the gas jets communicate with a blowing orifice in the exit portion of the die.

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