Method and apparatus for the manufacture of fibrids

Details Method and apparatus for the manufacture of fibrids Method and apparatus for the manufacture of fibrids

1988-11-08

1990-05-08

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By extrusion spraying or gravity fall through orifice

425 6, B29B 910

Patent

active

049236466

ABSTRACT:
A method and apparatus for the formation of polymer fibrids. These fibrids are produced by the mixing of superheated water and melted polymer and by passing this mixture through a bank of capillary tubes. The mixture becomes elongated in the capillary tubes and exits those tubes through a nozzle into an expansion chamber where they form fibrids. The fibrids are cooled by the evaporation of liquid water after expansion.

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Petersen et al. "The Formation of Polymer Fibers From the Rapid Expansion of Supercritical Fluid Solutions" Polymer Eng. & Sci., Dec. 1987, vol. 27, No. 22, pp. 1693-1696.

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