ACTIVE POLYMER-CONTAINING MESH STRUCTURES, METHODS FOR PRODUCTION AND USE THEREOF Russian patent published in 2013 - IPC A01N25/10 A01N25/18 A61L9/04 

FIELD: chemistry.

SUBSTANCE: invention relates to production of polymer mesh structures for delayed release of active substances and use thereof. Polymerisable oligomers, active substances, polymerisation initiators, monomers and/or auxiliary substances are mixed, followed by thermal or photochemical polymerisation of the mixture. The polymerisable mixture contains: (A) 19.9-99.8 wt % of at least one oligomer with (meth)acrylate groups with average molecular weight M_n of 350-5000 g/mol, selected from a group of epoxy(meth)acrylates, polyester (meth)acrylates, urethane (meth)acrylates or polyether (meth)acrylates, wherein the arithmetic average number of (meth)acrylate groups per molecule of the oligomer ranges from 2.1 to 5, (B) 0-49.8 wt % of at least one monomer with olefin groups with molecular weight M_n of less than 350 g/mol, (C) 0.1-8 wt % of at least one polymerisation initiator which is soluble in the polymerisable mixture, (D) 0.1-80 wt % of at least one active substance which is soluble or dispersible in the polymerisable mixture and (E) 0-20 wt % of other auxiliary substances and/or additives. The amount of all components used from (A) to (E) is equal to 100%. The mesh structures are used to protect engineering materials, films, lacquer, dispersions and plants.

EFFECT: invention enables to slow the rate of release of active substances.

14 cl, 1 dwg, 2 tbl, 7 ex