Melt blowing method for forming layered webs of filter media

Details Melt blowing method for forming layered webs of filter media Melt blowing method for forming layered webs of filter media

1998-11-18

1999-11-02

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

With subsequent uniting of the particles

264113, 264115, 264518, B29C 4712

Patent

active

059764279

ABSTRACT:
A method, die apparatus and product wherein a layered web of melt blown fibrous filter media is produced by a unitary die including several die sources with facing layers of the fibrous filter media being attenuated by opposed fluid streams at preselected included angles and with the fiber layers being free from bonding together and with the fibers in each layer being minimally bonded.

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