COMPOSITION CONTAINING POLYMER AND STATE CHANGE INITIATOR Russian patent published in 2019 - IPC A61F5/443 A61F5/445 A61L24/00 A61L24/04 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to the field, specifically to an adhesive composition with the possibility of changing state for use on skin containing a polymer, photoinitiator and hydrocolloid, wherein the polymer is an acrylate polymer, acrylate copolymer or polyurethane, wherein photoinitiator provides a photoinitiator forming free radicals, wherein hydrocolloid is selected from guar gum, locust bean gum, pectin, potato starch, alginates, gelatine, xanthan or gum karaya, cellulose derivatives, carboxymethyl cellulose salts, sodium-carboxymethyl cellulose, methylcellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, sodium starch glycolate, polyvinyl alcohol and mixtures thereof, wherein composition can change state from first liquid state to second adhesive state by activating photoinitiator; wherein composition in first liquid state has complex viscosity |η*|, which is less than 0.4 MPa · s, and in second adhesive state has higher complex viscosity |η*| in comparison with complex viscosity |η*| in the first liquid state and in the second adhesive state is characterized by a second repulsive force greater than 1 N/25 mm, relates to a method of fixing an adhesive composition, use of a composition for attaching a medical device to a user's skin.

EFFECT: group of inventions provides fast and good adhesion to user's skin and provides reliable attachment of pressure-sensitive material during use.

46 cl, 24 tbl, 18 ex