Flynn, Thiel, Boutell & Tanis
Separation agent comprising acyl- or carbamoyl-substituted polysaccharide
 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. 
Daicel Chemical Industries, Ltd.
C C C C C
C07C C08B C08B C07C C08B
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Hajime Tohru Ichiro
Nakikoshi Shibata Okamoto