ADHESIVE COMPOSITION FOR MOIST ENVIRONMENT ON BASIS OF BLOCK COPOLYMER CONTAINED AT LEAST ONE HYDROPHYLIC BLOCK Russian patent published in 2008 - IPC C09J153/00 A61K9/70 A61F13/00 G09F3/10 

FIELD: chemistry.

SUBSTANCE: invention relates to the binding agent for the adhesive composition which is a block-copolymer derived by means of controlled radical polymerisation that has specific composition, structure and is used to ensure adhesion in moist environment and contains at least one hydrophylic block and can be added into the adhesive composition meant for using in moist environment. The binding agent can be used in the adhesive compositions for a number of medical applications (protective, prosthetic devices) as well as for paramedical applications (protective, bandages) which should not unglue even under the influence of water. The binding agent for the adhesive composition insuring adhesion in moist environment is a block copolymer which has at least one hard hydrophylic block (B) that is non-operating phase, dispersed as nanodomain and at least one hydrophobus block (A) of elastomeric nature that is the main phase characterised with water absorbing capacity w_∞(A), less 20%.

EFFECT: binding agent of the adhesive compositions for usage in dry and moist environment was prepared.

18 cl, 1 tbl, 11 ex