Non-shrinking, non-swelling, cellulose bodies for chromatography

Details Non-shrinking, non-swelling, cellulose bodies for chromatography Non-shrinking, non-swelling, cellulose bodies for chromatography

1994-01-11

1997-08-12

Mullis, Jeffrey C.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

525 543, 536 57, C08B 1600

Patent

active

056563736

ABSTRACT:
Disclosed are small particles of cellulose which are useful for liquid chromatography supports, and the like. Disclosed are methods for making small, substantially spherical bodies with a near complete absence of irregularities, holes, cracks, and the like. This is made possible by a new process wherein the coagulation of viscose is carried out before any regeneration is allowed to begin. This method is of general utility applying also to the production of rayon fiber and cellophane film.

REFERENCES:
patent: 2543928 (1951-03-01), O'Neill et al.
patent: 4055510 (1977-10-01), Peska et al.
patent: 4902792 (1990-02-01), Okuma et al.
patent: 4946953 (1990-08-01), Okuma et al.
patent: 5245024 (1993-09-01), Scarpa et al.

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