Separation agent comprising acyl- or carbamoyl-substituted polys

Details Separation agent comprising acyl- or carbamoyl-substituted polys Separation agent comprising acyl- or carbamoyl-substituted polys

1994-08-04

1995-05-16

Therkorn, Ernest G.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210656, 2101982, 2105021, 502404, B01D 1508

Patent

active

054157803

ABSTRACT:
Separation of a chemical substance is effected by treating a mixture thereof with a polysaccharide having a substituent for hydroxyl group an acyl group of the formula (1) or a carbamoyl group of the formula (2): ##STR1## wherein R represents an atomic group having a nucleus comprising a conjugated .pi.-bond system in which the number of bonds interposed between an atom contained therein and bonded with the carbonyl or amino group and an atom contained in the .pi.-bond system and most distant from said atom is at least 5 even in the shortest route.

REFERENCES:
patent: 3416993 (1968-12-01), Heusser
patent: 3597350 (1971-08-01), Determan
patent: 3960720 (1976-06-01), Porath
patent: 4016149 (1977-04-01), Travis
patent: 4111838 (1978-09-01), Schaffer
patent: 4322310 (1982-03-01), House
patent: 4330440 (1982-05-01), Ayers
patent: 4335226 (1982-06-01), Muller
patent: 4431544 (1984-02-01), Atkinson
patent: 4431546 (1984-02-01), Hughes
patent: 4512898 (1985-04-01), Oi
patent: 4522724 (1985-06-01), Ramsden
patent: 4565877 (1986-01-01), Wada
patent: 4767571 (1988-08-01), Suzuki
patent: 4879038 (1989-11-01), Namikoshi
The Merck Index, Eighth Edition, Merck & Co., 1968, p. 635.
Optical Resolution on Polymers by Yoshio Okamoto-A publication presented at the 49th Spring Annual Meeting of the Chemical Society of Japan, Mar. 10, 1984, pp. 1-4.

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