Filter assembly for molten polymeric material

Details Filter assembly for molten polymeric material Filter assembly for molten polymeric material

1988-02-25

1990-05-01

Jones, W. Gary

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

With spaced non-particulate separating means

210289, 2103232, 210503, 2105101, 425199, B01D 2926

Patent

active

049216074

ABSTRACT:
The prefilter assembly is provided with a central cavity in which a plurality of tubular porous tubular elements are provided with the remaining space being filled by a mass of shattered metal particles. During filtration, the shattered metal particles eliminate dead space within the filter while also filtering out micro gels which may be in the polymeric material. The shattered metal particles also reduce the possibility of gel formation due to cross-linking of the polymer mass therethrough.

REFERENCES:
patent: 3570059 (1971-03-01), Mott
patent: 3896028 (1975-07-01), Phillips
patent: 4661249 (1987-04-01), Langley

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