Patent ID: 9023396
Filing Date: 2015-05-05
Classification: A61K,A61P,Y10T

Abstract:
1. A process for preparing a composition comprising polysaccharide particles having one or more complexing groups obtained by covalently bonding putrescine NH 2 (CH 2 ) 4 NH 2 , spermine H 2 N(CH 2 ) 3 NH(CH 2 ) 4 NH(CH 2 ) 3 NH 2 , spermidine NH 2 (CH 2 ) 3 NH(CH 2 ) 4 NH 2 , or cadaverine NH 2 (CH 2 ) 5 NH 2 with particles of non-crosslinked polysaccharide, all or some of said complexing groups forming a complex with at least one polyvalent metal selected from the group of radioactive isotopes consisting of technetium, rhenium, copper, strontium, indium, samarium, tin, scandium, yttrium, gallium, gadolinium and lutetium, wherein the polysaccharide is starch, said process comprising the steps of: