POLYURETHANE SYSTEM FOR MAKING ELASTIC ARTICLES WITH IMPROVED SANITARY PROPERTIES Russian patent published in 2012 - IPC C08J9/00 C08G18/48 C08G18/18 C08G18/70 C08L75/08 C08K9/02 A61L15/26 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the chemistry of foamed polyurethanes, particularly a polyurethane system for making elastic articles, preferably for medical purposes, for example, orthopaedic articles, technical parameters of which have improved sanitary properties which meet their operating requirements. The present invention can also be used to make polyurethane bandages. The polyurethane system for making articles with improved sanitary properties contains compositions based on a polyol compound A, an isocyanate compound B and a mineral agent C, which is dispersed in polyol compound A. The isocyanate compound B used is prepolymers of methylene diphenyl diisocyanates MDI. The mineral agent C used is a mixture of bentonite nanopowders which are intercalated with silver ions Ag⁺ and cerium ions Ce³⁺.

EFFECT: improved sanitary properties of the obtained elastic articles, with regard to both inhibiting growth of microorganisms and reducing gas release of volatile toxic organic compounds.

9 cl, 2 dwg, 5 ex