Method for fractionating soluble polymers and colloidal particle

Details Method for fractionating soluble polymers and colloidal particle Method for fractionating soluble polymers and colloidal particle

1978-12-18

1981-07-28

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

209 1, 209155, 210504, 210656, 252319, 252325, 260 4243, 260 96R, 428404, 428407, B01D 1700

Patent

active

042809231

ABSTRACT:
Colloidal particles are fractionated by size and dissolved polymers are fractionated by molecular weight by passing a polar solvent dispersion containing one or both through a bed of surface-bonded particles wherein the particles consist of a nonswellable inert core with a polar solvent-swellable surface coating of bonded organic polymer. The core can be either an insoluble cross-linked organic polymer gel or an inorganic solid such as silica or alumina.

REFERENCES:
patent: 3295296 (1967-01-01), Halasz et al.
patent: 3489699 (1970-01-01), Battaerd et al.
patent: 3492155 (1970-01-01), Baitsholts et al.
patent: 3698931 (1972-10-01), Horowitz
patent: 3865717 (1975-02-01), Small
patent: 3962206 (1976-06-01), Butler
Horvath et al., "Fast Liquid Chromatography . . .", Anal. Chem., vol. 39, No. 12, Oct. 1967, pp. 1422-1428.

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