Insecticidal Polymer Matrix Comprising PBO and DM

Abstract

An insecticidal polymer matrix containing Piperonyl Butoxide (PBO) and deltamethrin (DM), wherein the ratio between the content of PBO and the content of DM in terms of weight is higher than 3.

1 - 20 . (canceled) 
     
     
         21 . An insecticidal polymer matrix being made of a material with Piperonyl Butoxide (PBO) and deltamethrin (DM) as part of the material for migration of the PBO and the DM from inside the material to the surface of the matrix, wherein the ratio between the content of PBO and the content of DM in terms of weight is higher than 4, and wherein the amount of DM in the polymer is between 1 g and 6 g per kg polymer. 
     
     
         22 . An insecticidal polymer matrix according to  claim 21 , wherein the ratio between the content of PBO and the content of DM is higher than 5. 
     
     
         23 . An insecticidal polymer matrix according to  claim 22 , wherein the ratio between the content of PBO and the content of DM is between 5 and 10. 
     
     
         24 . An insecticidal polymer matrix according to  claim 21 , wherein the polymer is a thermoplastic polymer. 
     
     
         25 . An insecticidal polymer matrix according to  claim 24 , wherein the polymer is a polyolefin. 
     
     
         26 . An insecticidal polymer matrix according to  claim 25 , wherein the polymer is polyethylene. 
     
     
         27 . An insecticidal matrix according to  claim 21 , wherein the insecticidal matrix contains at least one of UV protectors and antioxidants for slowing down chemical or photochemical degradation of PBO and DM. 
     
     
         28 . An insecticidal polymer matrix according to  claim 21 , wherein the insecticidal matrix is in the form of a monofilament with a diameter of between 0.05 mm and 0.35 mm. 
     
     
         29 . An insecticidal polymer matrix according to  claim 21 , wherein the insecticidal matrix is in the form of a yarn. 
     
     
         30 . An insecticidal matrix according to  claim 29 , wherein the yarn is an extruded and water quenched yarn drawn with a draw ratio of 5 to 10. 
     
     
         31 . An insecticidal matrix according to  claim 29 , wherein the insecticidal matrix contains at least one of UV protectors and antioxidants for slowing down chemical or photochemical degradation of PBO and DM. 
     
     
         32 . An insecticidal matrix according to  claim 29 , wherein the insecticidal matrix is in the form of a yarn as part of a bed net. 
     
     
         33 . An insecticidal matrix according to  claim 21 , wherein the insecticidal matrix is in the form of a tarpaulin, a foil, or a flat yarn. 
     
     
         34 . An insecticidal matrix according to  claim 33 , wherein the insecticidal matrix contains at least one of UV protectors and antioxidants for slowing down chemical or photochemical degradation of PBO and DM.