Melt blowing of tubular filters

Details Melt blowing of tubular filters Melt blowing of tubular filters

1993-10-06

1995-04-25

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

264 12, 264113, 264DIG48, 156167, 425 7, 425 722, B29C 4700

Patent

active

054096421

ABSTRACT:
An apparatus and method for producing a meltblown continuous and seamless nonwoven tube is described. The apparatus comprises a meltblowing die for extruding two groups of polymer thermoplastic filaments onto a rotating mandrel to form a multilayer layer tube thereon. The tube is withdrawn from the mandrel by a rotating screw. The present apparatus is capable of producing nonwoven tubes having variable fiber diameters and/or composition in the radial direction, making them ideally suited for filtration purposes.

REFERENCES:
patent: 3502763 (1970-03-01), Hartmann
patent: 3933557 (1976-01-01), Pall
patent: 4021281 (1977-05-01), Pall
patent: 4032688 (1977-06-01), Pall
patent: 4112159 (1978-09-01), Pall
patent: 4116738 (1978-09-01), Pall
patent: 4594202 (1986-06-01), Pall et al.
patent: 4714647 (1987-12-01), Shipp, Jr. et al.
patent: 4731215 (1988-03-01), Schwarz
patent: 4738740 (1988-04-01), Pinchuk et al.
patent: 5122048 (1992-06-01), Deeds
patent: 5145689 (1992-09-01), Allen et al.
patent: 5236641 (1993-08-01), Allen et al.

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