Patent ID: 8653004

Claim:
A process for producing an actives-comprising polymeric network for delayed release of actives, the process comprising: forming a polymerizable mixture by mixing (A) 19.9% to 99.8% by weight of at least one oligomer containing (meth)acrylate groups and having an average molar mass M n of 350 to 5000 g/mol, selected from the group consisting of epoxy (meth)acrylates, polyester (meth)acrylates, urethane (meth)acrylates or polyether (meth)acrylates; the arithmetic average of the number of (meth)acrylate groups per oligomer molecule being 2.1 to 5, (B) 0% to 49.8% by weight of at least one monomer containing olefinic groups and having a molar mass M n of less than 350 g/mol, (C) 0.1% to 8% by weight of at least one polymerization initiator comprising a thermal polymerization initiator and/or a photochemical polymerization initiator which is soluble in the polymerizable mixture, (D) 0.1% to 80% by weight of at least one active selected from the group consisting of biocides, herbicides, messengers, scents and combinations thereof, which is dispersible or soluble in the polymerizable mixture, and (E) 0% to 20% by weight of further auxiliaries and/or additives, to form the polymerizable mixture, the amounts being based in each case on the total amount of all the components of the polymerizable mixture, and the amount of all the components used, (A) to (E), being 100%; and thermally or photochemically polymerizing the polymerizable mixture.