Biocide composition comprising pyrithione and pyrrole derivatives

Abstract

The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content.

1 - 31 . (canceled) 
     
     
         32 . A biocidal composition comprising:
 A.) a pyrithione compound being copper pyrithione and   B.) one or more pyrrole compounds of Formula (I):   
       
         
           
           
               
               
           
         
         
           wherein X is halogen, CN, NO 2  or S(O) n R 1 ; Y is hydrogen, halogen or S(O) n R 1 ; Z is halogen, C 1 -C4haloalkyl or S(O) n R 1 ; n is an integer of 0, 1 or 2; R 1  is C 1 -C 4 haloalkyl; L is hydrogen or halogen; M and Q are each independently hydrogen, halogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, C 1 -C 4 alkylthio, C 1 -C 4 alkylsulfinyl, C 1 -C 4 alkylsulfonyl, CN, NO 2 , R 2 CO or NR 3 R 4 , or when M and Q are on adjacent positions and are taken together with the carbon atoms to which they are attached MQ represents the structure —OCH 2 O—, —OCF 2 O—, or —CH═CH—CH═CH—; R is hydrogen, C 1 -C 4 alkoxyalkyl, C 1 -C 4 alkylthioalkyl or R 6 CO; R 2  is C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy or NR 3 R 4 ; R 3  is hydrogen or C 1 -C 4 alkyl; R 4  is hydrogen, C 1 -C 4 alkyl or R 5 CO; R 5  is hydrogen or C 1 -C 4 alkyl; and R 6  is C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, C 2 -C 6  alkenyloxy, C 1 -C 4 haloalkoxy, phenyl optionally substituted with one to three C 1 -C 4 alkyl groups, benzyl, phenoxy, benzyloxy, C 1 -C 4 alkylcarbonyloxy, C 3 -C 6 cycloalkyl, naphthyl, pyridyl, thienyl or furanyl; and 
           wherein said biocidal composition is low copper content. 
         
       
     
     
         33 . The biocidal composition of  claim 32 , wherein said pyrrole compound of Formula (I) is selected from a group consisting of 2-trihalogenomethyl-3-halogeno-4-cyano pyrrole derivative substituted in position 5 and optionally in position 1, the halogens in positions 2 and 3 being independently selected from the group consisting of fluorine, chlorine and bromine, the substituent in position 5 being selected from the group consisting of phenyl, mono- and dihalogenophenyl, mono- and di-C1-4 alkyl phenyl, and monohalogeno mono-C1-4-alkyl phenyl, any halogen on the substituent in position 5 being selected from the group consisting of chlorine and bromine, the optional substituent in position 1 being selected from C1-4 alkyl and C1-4 alkoxy C1-4 alkyl. 
     
     
         34 . The biocidal composition of  claim 32 , wherein said pyrrole compound is 2-trihalogenomethyl-3-halogeno-4-cyano-5-(p-chlorophenyl)pyrrole. 
     
     
         35 . The biocidal composition of  claim 32 , wherein the pyrithione compound and said compound of formula I are present in a weight ratio of 9:1 to 1:9. 
     
     
         36 . The biocidal composition of  claim 32 , wherein the pyrithione compound and said pyrrole compound of Formula I are present in a weight ratio of 3:2 to 2:3. 
     
     
         37 . The biocidal composition of  claim 32 , wherein the pyrithione compound and said pyrrole compound of Formula I are present in a weight ratio of 3:1 to 1:3. 
     
     
         38 . The biocidal composition of  claim 32 , further comprising at least one acrylic polymer or co-polymer selected from the group consisting of copper acrylate polymer or co-polymer, zinc acrylate polymer or co-polymer, silyl acrylate polymer or co-polymer, and combinations thereof. 
     
     
         39 . A coating composition comprising an effective biocidal amount of a biocidal composition comprising:
 A) a pyrithione compound being copper pyrithione; and   B) one or more pyrrole compounds of Formula (I):   
       
         
           
           
               
               
           
         
         
           wherein X is halogen, CN, NO 2  or S(O) n R 1 ; Y is hydrogen, halogen or S(O) n R 1 ; Z is halogen, C 1 -C4haloalkyl or S(O) n R 1 ; n is an integer of 0, 1 or 2; R 1  is C 1 -C 4 haloalkyl; L is hydrogen or halogen; M and Q are each independently hydrogen, halogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, C 1 -C 4 alkylthio, C 1 -C 4 alkylsulfinyl, C 1 -C 4 alkylsulfonyl, CN, NO 2 , R 2 CO or NR 3 R 4 , or when M and Q are on adjacent positions and are taken together with the carbon atoms to which they are attached MQ represents the structure —OCH 2 O—, —OCF 2 O—, or —CH═CH—CH═CH—; R is hydrogen, C 1 -C 4 alkoxyalkyl, C 1 -C 4 alkylthioalkyl or R 6 CO; R 2  is C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy or NR 3 R 4 ; R 3  is hydrogen or C 1 -C 4 alkyl; R 4  is hydrogen, C 1 -C 4 alkyl or R 5 CO; R 5  is hydrogen or C 1 -C 4 alkyl; and R 6  is C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, C 2 -C 6  alkenyloxy, C 1 -C 4 haloalkoxy, phenyl optionally substituted with one to three C 1 -C 4 alkyl groups, benzyl, phenoxy, benzyloxy, C 1 -C 4 alkylcarbonyloxy, C 3 -C 6 cycloalkyl, naphthyl, pyridyl, thienyl or furanyl; and 
           wherein said biocidal composition is low copper content. 
         
       
     
     
         40 . The coating composition of  claim 39 , wherein said pyrrole compound of Formula (I) is 2-trihalogenomethyl-3-halogeno-4-cyano-5-(p-chlorophenyl)pyrrole. 
     
     
         41 . The coating composition of  claim 39 , wherein the effective biocidal amount is between 1% and 15% by weight, based on the total weight of said coating composition. 
     
     
         42 . The coating composition of  claim 39 , wherein the effective biocidal amount is between 2% and 10% by weight, based on the total weight of said coating composition. 
     
     
         43 . The coating composition of  claim 42 , wherein the effective biocidal amount is between 3% and 8% by weight, based on the total weight of said coating composition. 
     
     
         44 . The coating composition of  claim 42 , wherein the pyrithione compound and said compound of formula I are present in a weight ratio of 9:1 to 1:9. 
     
     
         45 . The coating composition of  claim 42 , wherein the pyrithione compound and said pyrrole compound of Formula I are present in a weight ratio of 3:2 to 2:3. 
     
     
         46 . The coating composition of  claim 42 , wherein the pyrithione compound and said pyrrole compound of Formula I are present in a weight ratio of 3:1 to 1:3. 
     
     
         47 . The coating composition of  claim 42 , wherein said coating composition is paint. 
     
     
         48 . The coating composition of  claim 42 , wherein said coating composition is a varnish. 
     
     
         49 . The coating composition of  claim 42 , wherein said coating composition is a lacquer. 
     
     
         50 . The coating composition of  claim 42 , wherein said coating composition is a wood sealant. 
     
     
         51 . The coating composition of  claim 42 , further comprising at least one acrylic polymer or co-polymer selected from the group consisting of copper acrylate polymer or co-polymer, zinc acrylate polymer or co-polymer, silyl acrylate polymer or co-polymer, and combinations thereof.