ORGANIC MAGNETIC COMPOSITE.

摘要

Composite of carboxyalkyl ether of polysaccharide with magnetic metal oxide is claimed. Also claimed is the prepn. of the composite which comprises (I) reacting aq. sol. contg. magnetic metal oxide particles, or the suspension of the particles with carboxyalkyl ether of polysaccharide; or (II) mixing and reacting di-, tri-valent metal salt and base in the presence of carboxylalkyl ether of polysaccharide in aq. system.