POLYMER, ESSENTIALLY RADIOPAQUE PRODUCTS FOR EMBOLIC THERAPY Russian patent published in 2009 - IPC A61K51/00 A61K49/04 A61M36/14 C08G69/00 

FIELD: medicine.

SUBSTANCE: invention refers to chemical-pharmaceutical industry, particularly to polymer radiopaque products for embolic therapy. There is described embolic therapy product containing polymer of formula I:

where X=1 or Br; Y1 and Y2 = 0,1, 2, 3 or 4; f = 0-1; g = 0-1; f+g = 0-1; A is chosen from: , , , , ,

where R₁ is H or alkyl group containing 1 to 18 carbon atoms and 0-5 heteroatoms, chosen from O and N; R₃ is alkyl, aryl or alkylaryl group containing to 18 carbon atoms and 0-8 heteroatoms, chosen from O and N; B is aliphatic diol or polyalkylene glycol link; R and R₂ are chosen from , where R₇ - -CH=CH-, -CHJ₁-CHJ₂- and (-CH₂-)a; R₈ - -CH=CH-, -CHJ₁-CHJ₂- and (-CH₂-)n; a and n = 0-8; J₁ and J₂ - Br or I; Q for R₂ contains free carboxyl group and Q for each R is chosen from the group consisting of hydrogen and esters and amides of carboxylic acids where polymer contains enough halogen atoms to ensure radiopacity of the embolic therapy product.

EFFECT: invention possesses radiopacity properties thereby being biocompatible and biodegradable.

75 cl, 3 dwg, 3 tbl, 13 ex