Wood Preservative Composition

Abstract

A wood preservative composition comprising a mixture of a fungicide which is a combination of a boric acid ester, which is soluble in an organic solvent and has a sterically hindered di-alcohol or tri-alcohol group, such as trihexylene glycol biborate, an organo-iodine compound, a triazole, and a synthetic pyrethroid insecticide, said fungicide and the insecticide being present in a sufficient amount that wood treated with the wood treatment material contains fungicide and insecticide in an amount of about 1 ppm to 5000 ppm, based on the weight of the wood after treatment.

1 - 19 . (canceled) 
     
     
         20 . A wood preservative composition comprising:
 (a) at least one borate ester fungicide in an organic solvent; the at least one borate ester fungicide comprising an ester that:
 (i) does not contain any boron anhydride bonds between boron atoms; and, 
 (ii) which contains di-alcohol or tri-alcohol groups that have sterically hindered di- or tri-substituted carbon groups at each B-O-C position; 
   (b) at least one iodopropargyl carbamate;   (c) at least one triazole; and,   (d) at least one synthetic pyrethroid insecticide;   (e) the borate ester fungicide, synthetic pyrethroid and insecticide being present in an amount effective for anti-fungal and anti-insect activity, when the wood preservative composition is applied to wood.   
     
     
         21 . A wood preservative composition according to  claim 20  wherein:
 (a) the composition contains fungicide and insecticide in an amount of 1 ppm-5,000 ppm, based on weight of wood after treatment. 
 
     
     
         22 . A wood preservative composition according to  claim 20  wherein:
 (a) the fungicide includes boric acid ester selected from: trihexylene glycol biborate; trioctylene glycol biborate; triisopropanolamine borate and mixtures thereof. 
 
     
     
         23 . A wood preservative composition according to  claim 20  wherein:
 (a) the fungicide includes at least one glycol biborate. 
 
     
     
         24 . A wood preservative composition according to  claim 20  wherein:
 (a) the fungicide comprises trihexylene glycol biborate. 
 
     
     
         25 . The composition of  claim 24  wherein the at least one borate ester fungicide is present in an amount of about 0.5 to 30.0 wt % based upon the weight of the total mixture. 
     
     
         26 . The composition of  claim 20  wherein the at least one borate ester fungicide is present in an amount of about 0.5 to 30.0 wt % based upon the weight of the total mixture. 
     
     
         27 . The composition of  claim 20  wherein the at least one borate ester fungicide is present in an amount of about 3.0 to 20.0 wt % based upon the weight of the total mixture. 
     
     
         28 . The composition of  claim 20  wherein the synthetic pyrethroid is selected from the group consisting of: deltamethrin, permethrin, cyfluthrin, tralomethrin, cypermethrin and resmethrin. 
     
     
         29 . The composition of  claim 20  wherein the synthetic pyrethroid is permethrin. 
     
     
         30 . The composition of  claim 20  wherein the iodopropargyl carbamate is selected from the group consisting of 3-iodo-2-propynyl propyl carbamate, 3-iodo-2-propynyl butyl carbamate, 3-iodo-2-propynyl hexyl carbamate, 3-iodo-2-propynyl cyclohexyl carbamate, 3-iodo-2-propynyl phenyl carbamate, and mixtures thereof. 
     
     
         31 . The composition of  claim 20  wherein the iodopropargyl carbamate is 3-iodo-2-propynyl butyl carbamate. 
     
     
         32 . The composition of  claim 20  wherein the triazole fungicide is selected from the group consisting of tebuconazole, propiconazole, azaconazole, hexaconazole, difenaconzole, and mixtures thereof. 
     
     
         33 . The composition of  claim 20  wherein the wood treatment composition further includes water repellant. 
     
     
         34 . The composition of  claim 20  wherein the at least one borate ester fungicide is present in an amount such that wood treated with the wood treatment composition has a boric acid equivalent in an amount of about 0.1% to 0.4% by weight based upon the weight of the wood. 
     
     
         35 . A wood treated with the wood treatment composition of  claim 20 . 
     
     
         36 . A wood treated with the wood treatment composition of  claim 20  wherein said synthetic pyrethroid insecticide is present in the wood in an amount of about 1 ppm to 1000 ppm, based on weight of the wood after treatment. 
     
     
         37 . A wood treated with the wood treatment composition of  claim 20  wherein said fungicide and the insecticide are present in a sufficient amount that wood treated with the wood treatment material contains fungicide and insecticide in an amount of about 1 ppm to 5000 ppm, based on the weight of the wood after treatment and has a boric acid equivalent in an amount of about 0.01% to 0.4% by weight based upon the weight of the wood. 
     
     
         38 . The composition of  claim 20  wherein the triazole comprises a mixture of tebuconazole and propiconazole.