US20040014799A1 - Synergetic biocidal composition comprising 2-methylisothiazoline-3-on - Google Patents
Synergetic biocidal composition comprising 2-methylisothiazoline-3-on Download PDFInfo
- Publication number
- US20040014799A1 US20040014799A1 US10/362,326 US36232603A US2004014799A1 US 20040014799 A1 US20040014799 A1 US 20040014799A1 US 36232603 A US36232603 A US 36232603A US 2004014799 A1 US2004014799 A1 US 2004014799A1
- Authority
- US
- United States
- Prior art keywords
- active ingredient
- biocidal active
- biocide composition
- mit
- methylisothiazolin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000003115 biocidal effect Effects 0.000 title claims abstract description 105
- 239000000203 mixture Substances 0.000 title claims abstract description 90
- PUSPAPGHKSLKKH-UHFFFAOYSA-N 2-methyl-1,2-thiazolidin-3-one Chemical compound CN1SCCC1=O PUSPAPGHKSLKKH-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 230000002195 synergetic effect Effects 0.000 title description 38
- 239000004480 active ingredient Substances 0.000 claims abstract description 45
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 41
- LLEMOWNGBBNAJR-UHFFFAOYSA-N biphenyl-2-ol Chemical compound OC1=CC=CC=C1C1=CC=CC=C1 LLEMOWNGBBNAJR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 244000005700 microbiome Species 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 19
- VAZJLPXFVQHDFB-UHFFFAOYSA-N 1-(diaminomethylidene)-2-hexylguanidine Polymers CCCCCCN=C(N)N=C(N)N VAZJLPXFVQHDFB-UHFFFAOYSA-N 0.000 claims abstract description 15
- 235000010292 orthophenyl phenol Nutrition 0.000 claims abstract description 15
- 229920002413 Polyhexanide Polymers 0.000 claims abstract description 14
- 229960002026 pyrithione Drugs 0.000 claims abstract description 5
- LVDKZNITIUWNER-UHFFFAOYSA-N Bronopol Chemical compound OCC(Br)(CO)[N+]([O-])=O LVDKZNITIUWNER-UHFFFAOYSA-N 0.000 claims abstract description 4
- FGVVTMRZYROCTH-UHFFFAOYSA-N pyridine-2-thiol N-oxide Chemical compound [O-][N+]1=CC=CC=C1S FGVVTMRZYROCTH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003139 biocide Substances 0.000 claims description 64
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 10
- 230000000996 additive effect Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 6
- -1 glycol ester Chemical class 0.000 claims description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- ISJNRPUVOCDJQF-UHFFFAOYSA-N (1-hydroxy-2,2,4-trimethylpentyl) 2-methylpropanoate Chemical compound CC(C)CC(C)(C)C(O)OC(=O)C(C)C ISJNRPUVOCDJQF-UHFFFAOYSA-N 0.000 claims description 2
- CUNHGCGTIAEQRA-UHFFFAOYSA-N 2-(hydroxymethyl)-1,2-benzothiazol-3-one Chemical compound C1=CC=C2C(=O)N(CO)SC2=C1 CUNHGCGTIAEQRA-UHFFFAOYSA-N 0.000 claims description 2
- LUYIHWDYPAZCNN-UHFFFAOYSA-N 2-butyl-1,2-benzothiazol-3-one Chemical compound C1=CC=C2C(=O)N(CCCC)SC2=C1 LUYIHWDYPAZCNN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- CADWTSSKOVRVJC-UHFFFAOYSA-N benzyl(dimethyl)azanium;chloride Chemical compound [Cl-].C[NH+](C)CC1=CC=CC=C1 CADWTSSKOVRVJC-UHFFFAOYSA-N 0.000 abstract description 16
- 229960000686 benzalkonium chloride Drugs 0.000 abstract description 2
- QMMKOUARLJQQNC-UHFFFAOYSA-N 4-butyl-1,2-benzothiazol-3-one Chemical compound CCCCC1=CC=CC2=C1C(=O)NS2 QMMKOUARLJQQNC-UHFFFAOYSA-N 0.000 abstract 1
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 35
- 238000011534 incubation Methods 0.000 description 27
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical compound [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 description 15
- 229940043810 zinc pyrithione Drugs 0.000 description 14
- FLBAYUMRQUHISI-UHFFFAOYSA-N 1,8-naphthyridine Chemical compound N1=CC=CC2=CC=CN=C21 FLBAYUMRQUHISI-UHFFFAOYSA-N 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 9
- 235000015097 nutrients Nutrition 0.000 description 9
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 6
- UEFCKYIRXORTFI-UHFFFAOYSA-N 1,2-thiazolidin-3-one Chemical compound O=C1CCSN1 UEFCKYIRXORTFI-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- DBHODFSFBXJZNY-UHFFFAOYSA-N 2,4-dichlorobenzyl alcohol Chemical compound OCC1=CC=C(Cl)C=C1Cl DBHODFSFBXJZNY-UHFFFAOYSA-N 0.000 description 2
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 2
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 2
- WRMNZCZEMHIOCP-UHFFFAOYSA-N 2-phenylethanol Chemical compound OCCC1=CC=CC=C1 WRMNZCZEMHIOCP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- POJWUDADGALRAB-UHFFFAOYSA-N allantoin Chemical compound NC(=O)NC1NC(=O)NC1=O POJWUDADGALRAB-UHFFFAOYSA-N 0.000 description 2
- 230000007815 allergy Effects 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 229960004698 dichlorobenzyl alcohol Drugs 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical class O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229960005323 phenoxyethanol Drugs 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- OYWRDHBGMCXGFY-UHFFFAOYSA-N 1,2,3-triazinane Chemical class C1CNNNC1 OYWRDHBGMCXGFY-UHFFFAOYSA-N 0.000 description 1
- TUBQDCKAWGHZPF-UHFFFAOYSA-N 1,3-benzothiazol-2-ylsulfanylmethyl thiocyanate Chemical compound C1=CC=C2SC(SCSC#N)=NC2=C1 TUBQDCKAWGHZPF-UHFFFAOYSA-N 0.000 description 1
- ANMHCSPYNHLSEO-UHFFFAOYSA-N 1-iodohept-1-yn-4-yl carbamate Chemical compound CCCC(OC(N)=O)CC#CI ANMHCSPYNHLSEO-UHFFFAOYSA-N 0.000 description 1
- UUIVKBHZENILKB-UHFFFAOYSA-N 2,2-dibromo-2-cyanoacetamide Chemical compound NC(=O)C(Br)(Br)C#N UUIVKBHZENILKB-UHFFFAOYSA-N 0.000 description 1
- OLQJQHSAWMFDJE-UHFFFAOYSA-N 2-(hydroxymethyl)-2-nitropropane-1,3-diol Chemical compound OCC(CO)(CO)[N+]([O-])=O OLQJQHSAWMFDJE-UHFFFAOYSA-N 0.000 description 1
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 1
- DHVLDKHFGIVEIP-UHFFFAOYSA-N 2-bromo-2-(bromomethyl)pentanedinitrile Chemical compound BrCC(Br)(C#N)CCC#N DHVLDKHFGIVEIP-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- TXNSZCSYBXHETP-UHFFFAOYSA-N 2-chloro-n-(hydroxymethyl)acetamide Chemical compound OCNC(=O)CCl TXNSZCSYBXHETP-UHFFFAOYSA-N 0.000 description 1
- WPGIHGVDISLTCF-UHFFFAOYSA-N 2-methyl-1,2-thiazolidin-3-one 2-methyl-1,2-thiazol-3-one Chemical compound CN1SCCC1=O.CN1SC=CC1=O WPGIHGVDISLTCF-UHFFFAOYSA-N 0.000 description 1
- AVGVFDSUDIUXEU-UHFFFAOYSA-N 2-octyl-1,2-thiazolidin-3-one Chemical compound CCCCCCCCN1SCCC1=O AVGVFDSUDIUXEU-UHFFFAOYSA-N 0.000 description 1
- FFHAAOMAFZGMAG-UHFFFAOYSA-N 2-octyl-1,2-thiazolidin-3-one 2-octyl-1,2-thiazol-3-one Chemical compound CCCCCCCCN1SCCC1=O.CCCCCCCCN1SC=CC1=O FFHAAOMAFZGMAG-UHFFFAOYSA-N 0.000 description 1
- LIYGCLJYTHRBQV-UHFFFAOYSA-N 3,5-dichloro-4-hydroxybenzaldehyde Chemical compound OC1=C(Cl)C=C(C=O)C=C1Cl LIYGCLJYTHRBQV-UHFFFAOYSA-N 0.000 description 1
- WYVVKGNFXHOCQV-UHFFFAOYSA-N 3-iodoprop-2-yn-1-yl butylcarbamate Chemical compound CCCCNC(=O)OCC#CI WYVVKGNFXHOCQV-UHFFFAOYSA-N 0.000 description 1
- GUQMDNQYMMRJPY-UHFFFAOYSA-N 4,4-dimethyl-1,3-oxazolidine Chemical compound CC1(C)COCN1 GUQMDNQYMMRJPY-UHFFFAOYSA-N 0.000 description 1
- CXIVKQSIEXBSRQ-UHFFFAOYSA-N 4,5-dichloro-2-octyl-1,2-thiazolidin-3-one Chemical compound CCCCCCCCN1SC(Cl)C(Cl)C1=O CXIVKQSIEXBSRQ-UHFFFAOYSA-N 0.000 description 1
- CFKMVGJGLGKFKI-UHFFFAOYSA-N 4-chloro-m-cresol Chemical compound CC1=CC(O)=CC=C1Cl CFKMVGJGLGKFKI-UHFFFAOYSA-N 0.000 description 1
- 229940046305 5-bromo-5-nitro-1,3-dioxane Drugs 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- POJWUDADGALRAB-PVQJCKRUSA-N Allantoin Natural products NC(=O)N[C@@H]1NC(=O)NC1=O POJWUDADGALRAB-PVQJCKRUSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- GHXZTYHSJHQHIJ-UHFFFAOYSA-N Chlorhexidine Chemical compound C=1C=C(Cl)C=CC=1NC(N)=NC(N)=NCCCCCCN=C(N)N=C(N)NC1=CC=C(Cl)C=C1 GHXZTYHSJHQHIJ-UHFFFAOYSA-N 0.000 description 1
- MDNWOSOZYLHTCG-UHFFFAOYSA-N Dichlorophen Chemical compound OC1=CC=C(Cl)C=C1CC1=CC(Cl)=CC=C1O MDNWOSOZYLHTCG-UHFFFAOYSA-N 0.000 description 1
- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 1
- 240000002989 Euphorbia neriifolia Species 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- VGGLHLAESQEWCR-UHFFFAOYSA-N N-(hydroxymethyl)urea Chemical compound NC(=O)NCO VGGLHLAESQEWCR-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229960000458 allantoin Drugs 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 229940027983 antiseptic and disinfectant quaternary ammonium compound Drugs 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- JCTHGPXQXLMSDK-UHFFFAOYSA-N bis(Benzyloxy)methane Chemical compound C=1C=CC=CC=1COCOCC1=CC=CC=C1 JCTHGPXQXLMSDK-UHFFFAOYSA-N 0.000 description 1
- XVBRCOKDZVQYAY-UHFFFAOYSA-N bronidox Chemical compound [O-][N+](=O)C1(Br)COCOC1 XVBRCOKDZVQYAY-UHFFFAOYSA-N 0.000 description 1
- 229960003168 bronopol Drugs 0.000 description 1
- TWFZGCMQGLPBSX-UHFFFAOYSA-N carbendazim Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1 TWFZGCMQGLPBSX-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229960001927 cetylpyridinium chloride Drugs 0.000 description 1
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229960003260 chlorhexidine Drugs 0.000 description 1
- VXIVSQZSERGHQP-UHFFFAOYSA-N chloroacetamide Chemical compound NC(=O)CCl VXIVSQZSERGHQP-UHFFFAOYSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000005068 cooling lubricant Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- QHNCWVQDOPICKC-UHFFFAOYSA-N copper;1-hydroxypyridine-2-thione Chemical compound [Cu].ON1C=CC=CC1=S.ON1C=CC=CC1=S QHNCWVQDOPICKC-UHFFFAOYSA-N 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229960003887 dichlorophen Drugs 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- WSDISUOETYTPRL-UHFFFAOYSA-N dmdm hydantoin Chemical compound CC1(C)N(CO)C(=O)N(CO)C1=O WSDISUOETYTPRL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- JWZXKXIUSSIAMR-UHFFFAOYSA-N methylene bis(thiocyanate) Chemical compound N#CSCSC#N JWZXKXIUSSIAMR-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- JEVCLNJEBFWVPD-UHFFFAOYSA-N n-methyl-2-[[2-(methylcarbamoyl)phenyl]disulfanyl]benzamide Chemical compound CNC(=O)C1=CC=CC=C1SSC1=CC=CC=C1C(=O)NC JEVCLNJEBFWVPD-UHFFFAOYSA-N 0.000 description 1
- 239000012038 nucleophile Substances 0.000 description 1
- QUBQYFYWUJJAAK-UHFFFAOYSA-N oxymethurea Chemical compound OCNC(=O)NCO QUBQYFYWUJJAAK-UHFFFAOYSA-N 0.000 description 1
- 229940070805 p-chloro-m-cresol Drugs 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229940067107 phenylethyl alcohol Drugs 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- XNRNJIIJLOFJEK-UHFFFAOYSA-N sodium;1-oxidopyridine-2-thione Chemical compound [Na+].[O-]N1C=CC=CC1=S XNRNJIIJLOFJEK-UHFFFAOYSA-N 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
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- 229940075582 sorbic acid Drugs 0.000 description 1
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- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- FAUOSXUSCVJWAY-UHFFFAOYSA-N tetrakis(hydroxymethyl)phosphanium Chemical class OC[P+](CO)(CO)CO FAUOSXUSCVJWAY-UHFFFAOYSA-N 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
Definitions
- biocide composition according to the invention may also be combined simultaneously with a polar and an unpolar liquid medium.
- the biocide composition according to the invention can be employed in very different fields.
- it is suitable for use in paints, renderings, lignosulfonates, chalk suspensions, glues, photochemicals, casein-containing products, starch-containing products, bitumen emulsions, surfactant solutions, fuels, cleaners, cosmetic products, water circuits, polymer dispersions and cooling lubricants against attack by, for example, bacteria, filamentous fungi, yeasts and algae.
- synergism which is present is shown in the form of figures using the calculations of the synergistic index shown in table II.
- the synergistic index is calculated by the method of F. C. Kull et al., Applied Microbiology, vol. 9 (1961), p. 538.
- the synergistic index is calculated using the following formula:
- the MIC values of the biocide compositions tested can be seen from table V which follows.
- the MIC value was 40 ppm when only MIT was employed and 30 ppm when only PMG was employed.
- TABLE V Pseudomonas aeruginosa MIC values of MIT + PGM at an incubation time of 48 h/25° C.
- MIT concentration PMG concentration (ppm) 100 75 50 40 30 20 10 0 50 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ 40 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ 30 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 20 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 15 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 10 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 7.5 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 5 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 0 ⁇ ⁇ ⁇ ⁇ + + + + + +
- the MIC values of the biocide composition tested can be seen from table IX which follows. The MIC value was 40 ppm when only MIT was employed and over 100 ppm when only ZnPy was employed. TABLE IX Pseudomonas aeruginosa : MIC values of MIT + ZnPy at an incubation time of 72 h/25° C.
- the experimental batches contained a Müller-Hinton broth as the nutrient medium.
- the cell density was 10 6 cells/ml.
- the incubation time was 72 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- MIT concentration BBIT concentration (ppm) 500 375 250 200 150 100 50 0 50 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ 40 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ 30 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 20 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 15 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ + 10 ⁇ ⁇ ⁇ ⁇ ⁇ + + 5 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Abstract
The invention relates to a biocidal composition which can be added to materials which can be attacked by harmful micro-organisms. The composition comprises 2-methylisothiazoline-3-on as biocidal active ingredient and at least one other biocidal active ingredient. The biocidal composition is characterised in that the composition contains formaldehyde or a formaldehyde-depot material, 2-brom-2-nitro-1,3 propandiol, polyhexamethylene biguanide, o-phenylphenol, pyrithione, n-butyl-1,2-benzisothiazoline-3-on, n-hydroxymenthyl-1,2-benzisothiazoline-3-on or benzalkonium chloride as said other biocidal active ingredient.
Description
- The invention relates to a biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient (MIT), and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms.
- Biocidal agents are employed in many fields, for example in the control of harmful bacteria, fungi and algae. It has long been known to employ, in such compositions, 4-isothiazolin-3-ones (also termed 3-isothiazolones), since this group contains potent biocidal compounds.
- One of these compounds is 5-chloro-2-methylisothiazolin-3-one. While it has a good biocidal action, it has various disadvantages on handling in practice. For example, the compound frequently triggers allergies in people handling it. Also, some countries have legal limits for the AOX value of industrial waste-water, i.e. a certain concentration of organochlorine, organobromine and organoiodine compounds which are adsorbable to active charcoal must not be exceeded in the water. This prevents 5-chloro-2-methylisothiazolin-3-one from being used as much as would be desirable. Moreover, the stability of this compound is insufficient under certain conditions, for example at high pH values or in the presence of nucleophiles or reducing agents.
- Another biocidally active, known isothiazolin-3-one is 2-methylisothiazolin-3-one. While the compound avoids the various disadvantages of 5-chloro-2-methylisothiazolin-3-one, for example the high risk of allergy, it is substantially less biocidally active. A simple exchange of 5-chloro-2-methylisothiazolin-3-one by 2-methylisothiazolin-3-one is therefore not possible.
- Also, it is already known to use combinations of various isothiazolin-3-ones or combinations of at least one isothiazolin-3-one and other compounds. For example, EP 0676140 A1 describes a synergistic biocidal composition comprising 2-methylisothiazolin-3-one (2-methyl-3-isothiazol-one) and 2-n-octylisothiazolin-3-one (2-n-octyl-3-isothiazol-one).
- U.S. Pat. No. 5,328,926 discloses synergistic biocide compositions which are combinations of 1,2-benzoisothiazolin-3-one (BIT) and an iodopropargyl compound (iodopropynyl compound). For example, 3-iodopropargyl-N-butylcarbamate is mentioned as one such compound.
- The invention is based on the object of indicating a biocide composition which is substantially free from 5-chloro-2-methylisothiazolin-3-one, i.e. in which the weight ratio of MIT to 5-chloro-2-methyliosthiazolin-3-one is at least 100:1. Moreover, the components of the biocide composition are intended to act synergistically so that, when employed simultaneously, they can be used in lower concentrations compared with the concentrations required in the case of the individual components. This is intended to be less damaging to humans and the environment and to reduce the costs of controlling harmful microorganisms.
- This object is achieved by the invention by a biocide composition of the type mentioned at the outset, which comprises, as further biocidal active ingredient, formaldehyde (HCHO) or a formaldehyde-releasing substance, 2-bromo-2-nitro-1,3-propanediol (bronopol, BNP), polyhexamethylenebiguanide (PMG), o-phenylphenol (OPP), a pyrithione, preferably zinc pyrithione (ZnPy), sodium pyrithione (NaPy), copper pyrithione (CuPy) and iron pyrithione (FePy), N-butyl-1,2-benzoisothiazolin-3-one (BBIT), N-hydroxymethyl-1,2-benzoisothiazolin-3-one (HMBIT) and/or a benzalkonium chloride, preferably dimethylbenzylalkonium chloride (BAC). These further biocidal active ingredients can be present, in the biocide composition, in each case individually or in a combination of at least two of them, in addition to the MIT.
- The biocide composition according to the invention is distinguished, inter alia, by the fact that the combination of MIT and one of the above-mentioned further biocidal active ingredients act synergistically and can therefore be used with a lower overall concentration of the biocidal components.
- The biocide composition according to the invention has the advantage that it can replace active ingredients which have previously been used in practice, but which are disadvantageous with regard to health and the environment, for example 5-chloro-2-methylisothiazolin-3-one. Moreover, if required, the biocide composition according to the invention can be prepared using only water as advantageous medium. Furthermore, the invention allows the composition to be adapted to specific uses by adding further active ingredients, for example with regard to an improved biocidal action, an improved long-term protection of the materials attacked by microorganisms, better compatibility with the materials to be protected, or an improved toxicological or ecotoxicological behavior.
- The biocide composition according to the invention normally comprises the MIT and the above-mentioned further biocidal active ingredient in a weight ratio of from 1:100 to 100:1, preferably in the weight ratio of from 1:20 to 10:1.
- The MIT and the above-mentioned further biocidal active ingredient are present, in the biocide composition, in an overall concentration of, preferably, 0.1 to 100% by weight, in particular 1 to 50% by weight, very especially preferably 1 to 20% by weight, in each case based on the entire biocide composition.
- It is expedient to employ the biocides of the composition according to the invention in combination with a polar or unpolar liquid medium. In this context, this medium may, for example, already exist in the biocide composition and/or in the material to be preserved.
- Preferred polar liquid media are water, an alcohol, such as an aliphatic alcohol having 1 to 4 carbon atoms, for example ethanol and isopropanol, an ester, a glycol, for example ethylene glycol, diethylene glycol, 1,2-propylene glycol, dipropylene glycol and tripropylene glycol, a glycol ether, for example butyl glycol and butyl diglycol, a glycol ester, for example butyl diglycol acetate or 2,2,4-trimethyl-pentanediol monoisobutyrate, a polyethylene glycol, a polypropylene glycol, N,N-dimethylformamide or a mixture of such materials.
- For example, aromatics, preferably xylene, toluene and alkylbenzols, and paraffins, unpolar esters, such as phthalates and fatty acid esters, epoxidized fatty acids and their derivatives, and silicone oils serve as unpolar liquid media.
- The biocide composition according to the invention may also be combined simultaneously with a polar and an unpolar liquid medium.
- In addition to MIT and the above-mentioned further biocidal active ingredients, the biocide composition according to the invention may additionally comprise one or more additional biocidal active ingredients which are selected to suit the field of application. Specific examples of such additional biocidal active ingredients are given hereinbelow.
- Benzyl alcohol
- 2,4-Dichlorobenzyl alcohol
- 2-Phenoxyethanol
- 2-Phenoxyethanol hemiformal
- Phenylethyl alcohol
- 5-Bromo-5-nitro-1,3-dioxane
- Dimethyloldimethylhydantoin
- Glyoxal
- Glutardialdehyde
- Sorbic acid
- Benzoic acid
- Salicylic acid
- p-Hydroxybenzoic esters
- Chloroacetamide
- N-Methylolchloroacetamide
- Phenols such as p-chloro-m-cresol
- N-Methylolurea
- N,N′-Dimethylolurea
- Benzyl formal
- 4,4-Dimethyl-1,3-oxazolidine
- 1,3,5-Hexahydrotriazine derivatives
- Quaternary ammonium compounds such as
- N-alkyl-N,N-dimethylbenzylammonium chloride and
- di-n-decyldimethylammonium chloride
- Cetylpyridinium chloride
- Diguanidine
- Chlorohexidine
- 1,2-Dibromo-2,4-dicyanobutane
- 3,5-Dichloro-4-hydroxybenzaldehyde
- Ethylene glycol hemiformal
- Tetra(hydroxymethyl)phosphonium salts
- Dichlorophene
- 2,2-Dibromo-3-nitrilopropionamide
- 3-Iodo-2-propynyl-N-butylcarbamate
- Methyl N-benzimidazol-2-ylcarbamate
- 2-n-Octylisothiazolin-3-one
- 4,5-Dichloro-2-n-octylisothiazolin-3-one
- 4,5-Trimethylene-2-methylisothiazolin-3-one
- Di-N-methyl-2,2′-dithiodibenzamide
- 2-Thiocyanomethylthiobenzothiazole
- C-Formals, such as
- 2-hydroxymethyl-2-nitro-1,3-propanediol
- Methylene bisthiocyanate
- Reaction products of allantoin with formaldehyde.
- In addition, the biocide composition according to the invention may comprise other customary constituents which are known as additives to the skilled worker in the biocides field. Examples of these are thickeners, antifoams, pH regulators and stabilizers, perfumes, dispersants, coloring matter and stabilizers against discoloration, for example complexing agents, and against the degradation of active ingredient.
- MIT is a known compound and can be prepared, for example, as described in U.S. Pat. No. 5,466,818. The reaction product obtained can be purified for example by column chromatography.
- HCHO, as is known, is widely available commercially.
- BNP is commercially available, for example, from BASF AG, under the trade name “Myacide® AS”.
- PMG is available from Avecia under the trade name “Vantocil IB”.
- OPP is available from Bayer under the trade name “Preventol O extra”.
- Pyrithiones are available from Arch Chemicals, for example ZnPy under the trade name “Zinc-Omadine” and NaPy under the trade name “Natrium-Omadine”. CuPy and FePy can be obtained by known methods by reacting NaPy with copper salts or iron salts, respectively.
- BBIT is available from Avecia under the trade name “Vanquish 100”.
- HMBIT can be obtained by crystallizing a reaction mixture of formaldehyde and BIT.
- BAC is available from Thor GmbH under the trade name “BAC 50”.
- The biocide composition according to the invention can be employed in very different fields. For example, it is suitable for use in paints, renderings, lignosulfonates, chalk suspensions, glues, photochemicals, casein-containing products, starch-containing products, bitumen emulsions, surfactant solutions, fuels, cleaners, cosmetic products, water circuits, polymer dispersions and cooling lubricants against attack by, for example, bacteria, filamentous fungi, yeasts and algae.
- In these materials to be preserved, the biocides are generally employed in an overall concentration in the range of from 1 to 100 000 ppm, preferably 10 to 10 000 ppm, based on all of the material to be preserved.
- When used in practice, the biocide composition can be introduced either as a ready mix or by separately adding the biocides and the optional remaining components of the composition to the material which is to be preserved.
- The examples illustrate the invention.
- This example demonstrates the synergism of the combinations of MIT and HCHO in the biocide composition according to the invention.
- To this end, aqueous mixtures with different concentrations of MIT and HCHO were prepared, and the effect of these mixtures onPseudomonas aeruginosa was tested.
- In addition to the biocide component and water, the aqueous mixtures also comprised a nutrient medium, viz. a commercially available Müller-Hinton broth. The cell density was 106 cells/ml. The incubation time was 96 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- Table I hereinbelow shows the concentrations of MIT and HCHO used. It can also be seen from this table whether microbial growth took place (symbol “+”) or not (symbol “−”).
- Thus, table I also shows the minimum inhibitory concentrations (MICs). Accordingly, an MIC value of 60 ppm results when only MIT is used, and an MIC value of 100 ppm when only HCHO is used. In contrast, the MIC values of mixtures of MIT and HCHO are markedly lower, that is to say the combination of MIT and HCHO acts synergistically.
TABLE I Pseudomonas aeruginosa: MIC values of MIT + HCHO at an incubation time of 96 h/25° C. MIT concentration HCHO concentration (ppm) (ppm) 3 2 1 0.75 0.5 0.4 0.3 0.2 0.1 0.05 0 100 − − − − − − − − − − − 80 − − − − − − − − − − − 60 − − − − − − − − − − − 40 − − − − − − − − − − + 30 − − − − − − − − − − + 20 − − − − − − − − − + + 15 − − − − − − − − − + + 10 − − − − − − − − − + + 0 − − − − − − − + + + + - The synergism which is present is shown in the form of figures using the calculations of the synergistic index shown in table II. The synergistic index is calculated by the method of F. C. Kull et al., Applied Microbiology, vol. 9 (1961), p. 538. Here, the synergistic index is calculated using the following formula:
- Synergistic index SI=Q a /Q A +Q b /Q B.
- When applying this formula to the biocide system in the present context, the parameters in the formula have the following meanings:
- Qa=MIT concentration MIT/HCHO biocide mixture
- QA=concentration of MIT as the only biocide
- Qb=HCHO concentration in the MIT/HCHO biocide mixture
- QB=concentration of HCHO as the only biocide.
- If the synergistic index has a value of above 1, this means that antagonism is present. If the synergistic index assumes a value of 1, this means that an additive effect of the two biocides exists. If the synergistic index assumes a value of less than 1, this means that synergism of the two biocides exists.
TABLE II Pseudomonas aeruginosa: calculation of the synergistic index of MIT + HCHO at an incubation time of 96 h/25° C. MIC at Total MIT HCHO concentration of Concentration Synergistic concentration concentration MIT + HCHO MIT HCHO Index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) (ppm) (ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 100 100 0.0 100.0 0.00 1.00 1.00 10 75 85 11.8 88.2 0.17 0.75 0.92 10 50 60 16.7 83.3 0.17 0.50 0.67 15 50 65 23.1 76.9 0.25 0.50 0.75 20 50 70 28.6 71.4 0.33 0.50 0.83 30 25 55 54.5 45.5 0.50 0.25 0.75 40 25 65 61.5 38.5 0.67 0.25 0.92 60 0 60 100.0 0.0 1.00 0.00 1.00 - It can be seen from table II that the optimal synergism, i.e. the lowest synergistic index (0.67), of an MIT/HCHO mixture is obtained with a mixture of 16.7% by weight of MIT and 83.3% by weight of HCHO.
- Analogously to example 1, the synergism of MIT and BNP was shown with regard to the microorganismPseudomonas aeruginosa.
- Again, the experimental batches contained a Müller-Hinton broth as the nutrient medium. The cell density was 106 cells/ml. The incubation time was 72 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- The MIC values of the biocide composition tested can be seen from table III which follows. The MIC value was 40 ppm when only MIT was employed and 20 ppm when only BNP was employed.
TABLE III Pseudomonas aeruginosa: MIC values of MIT + BNP at an incubation time of 72 h/25° C. MIT concentration BNP concentration (ppm) (ppm) 50 40 30 20 15 10 5 0 60 − − − − − − − − 50 − − − − − − − − 40 − − − − − − − − 30 − − − − − − − + 20 − − − − − − − + 15 − − − − − − − + 10 − − − − − − + + 5 − − − − − + + + 0 − − − − + + + + - Synergism was present when MIT and BNP were employed simultaneously. The calculation of the synergistic index can be seen from table IV. Accordingly, the lowest synergistic index forPseudomonas aeruginosa (0.63) was found for a mixture of 75.0% by weight of MIT and 25% by weight of BNP.
TABLE IV Pseudomonas aeruginosa: calculation of the synergistic index of MIT + BNP at an incubation time of 72 h/25° C. MIC at Total MIT BNP concentration of Concentration Synergistic concentration concentration MIT + BNP MIT BNP Index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) (ppm) (ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 20 20 0.0 100.0 0.00 1.00 1.00 5 15 20 25.0 75.0 0.13 0.75 0.88 10 10 20 50.0 50.0 0.25 0.50 0.75 15 5 20 75.0 25.0 0.38 0.25 0.63 20 5 25 80.0 20.0 0.50 0.25 0.75 40 0 40 100.0 0.0 1.00 0.00 1.00 - Analogously to example 1, the synergism of MIT and PMG is shown with regard to the microorganismPseudomonas aeruginosa.
- Again, the experimental batches contained a Müller-Hinton broth as the nutrient medium. The cell density was 106 cells/ml. The incubation time was 48 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- The MIC values of the biocide compositions tested can be seen from table V which follows. The MIC value was 40 ppm when only MIT was employed and 30 ppm when only PMG was employed.
TABLE V Pseudomonas aeruginosa: MIC values of MIT + PGM at an incubation time of 48 h/25° C. MIT concentration PMG concentration (ppm) (ppm) 100 75 50 40 30 20 10 0 50 − − − − − − − − 40 − − − − − − − − 30 − − − − − − − + 20 − − − − − − − + 15 − − − − − − − + 10 − − − − − − − + 7.5 − − − − − − − + 5 − − − − − − − + 0 − − − − − + + + - Synergism was present when MIT and PMG were employed simultaneously. The calculation of the synergistic index can be seen from table VI. Accordingly, the lowest synergistic index (0.46) forPseudomonas aeruginosa was found for a mixture of 33.3% by weight of MIT and 66.7% by weight of PMG.
TABLE VI Pseudomonas aeruginosa: calculation of the synergism of MIT + PMG at an incubation time of 48 h/25° C. MIC at Total MIT PMG concentration Concentration Synergistic concentration concentration MIT + PMG MIT PMG Index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) (ppm) (ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 30 30 0.0 100.0 0.00 1.00 1.00 5 20 25 20.0 80.0 0.13 0.67 0.79 5 10 15 33.3 66.7 0.13 0.33 0.46 7.5 10 17.5 42.9 57.1 0.19 0.33 0.52 10 10 20 50.0 50.0 0.25 0.33 0.58 15 10 25 60.0 40.0 0.38 0.33 0.71 20 10 30 66.7 33.3 0.50 0.33 0.83 40 0 40 100.0 0.0 1.00 0.00 1.00 - Analogously to example 1, the synergism of MIT and OPP was shown with regard to the microorganismPseudomonas aeruginosa.
- Again, the experimental batches contained a Müller-Hinton broth as the nutrient medium. The cell density was 106 cells/ml. The incubation time was 72 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- The MIC values of the biocide composition tested can be seen from table VII which follows. The MIC value was 40 ppm when only MIT was employed and 750 ppm when only OPP was employed.
TABLE VII Pseudomonas aeruginosa: MIC values of MIT + OPP at an incubation time of 72 h/25° C. MIT concentration OPP concentration (ppm) (ppm) 750 500 375 250 200 150 50 37.5 25 12.5 0 50 − − − − − − − − − − − 40 − − − − − − − − − − − 30 − − − − − − + + + + + 25 − − − − − − + + + + + 20 − − − − − − + + + + + 15 − − − − − − + + + + + 12.5 − − − − − + + + + + + 10 − − − − − + + + + + + 7.5 − − − − + + + + + + + 5 − − + + + + + + + + + 2.5 − − + + + + + + + + + 0 − + + + + + + + + + + - Synergism was present when MIT and OPP were employed simultaneously. The calculation of the synergistic index can be seen from table VIII. Accordingly, the lowest synergistic index (0.52) forPseudomonas aeruginosa was found for a mixture of from 2.9 to 4.8% by weight of MIT and from 97.1 to 95.2% by weight of OPP.
TABLE VIII Pseudomonas aeruginosa: calculation of the synergism of MIT + OPP at an incubation time of 72 h/25° C. MIC at Total MIT OPP concentration Concentration Synergistic concentration concentration MIT + OPP MIT OPP Index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) (ppm) (ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 750 750 0.0 100.0 0.00 1.00 1.00 2.5 500 502.5 0.5 99.5 0.06 0.67 0.73 5 500 505 1.0 99.0 0.13 0.67 0.79 7.5 375 382.5 2.0 98.0 0.19 0.50 0.69 7.5 250 257.5 2.9 97.1 0.19 0.33 0.52 10 200 210 4.8 95.2 0.25 0.27 0.52 12.5 200 212.5 5.9 94.1 0.31 0.27 0.58 15 150 165 9.1 90.0 0.38 0.20 0.58 20 150 170 11.8 88.2 0.50 0.20 0.70 25 150 175 14.3 85.7 0.63 0.20 0.83 40 0 40 100.0 0.0 1.00 0.00 1.00 - Analogously to example 1, the synergism of MIT and ZnPy was shown with regard to the microorganismPseudomonas aeruginosa.
- Again, the experimental batches contained a Müller-Hinton broth as the nutrient medium. The cell density was 106 cells/ml. The incubation time was 72 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- The MIC values of the biocide composition tested can be seen from table IX which follows. The MIC value was 40 ppm when only MIT was employed and over 100 ppm when only ZnPy was employed.
TABLE IX Pseudomonas aeruginosa: MIC values of MIT + ZnPy at an incubation time of 72 h/25° C. MIT concentration ZnPy concentration (ppm) (ppm) 100 75 50 40 30 20 10 0 100 − − − − − − − − 80 − − − − − − − − 60 − − − − − − − − 40 − − − − − − − − 30 − − − − − − − + 20 − − − − − − − + 15 − − − − − − − + 10 − − − − − − − + 0 + + + + + + + + - Synergism was present when MIT and ZnPy were employed simultaneously. The calculation of the synergistic index can be seen from table X. In the case of ZnPy, an MIC value of 100 ppm was used here as the basis for this calculation. Accordingly, the lowest synergistic index (0.35) forPseudomonas aeruginosa was found for a mixture of 50% by weight of MIT and 50% by weight of ZnPy.
TABLE X Pseudomonas aeruginosa: calculation of the synergism of MIT + ZnPy at an incubation time of 72 h/25° C. MIC at Total MIT ZnPy concentration Concentration Synergistic concentration concentration MIT + ZnPy MIT ZnPy Index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) (ppm) (ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 100 100 0.0 100.0 0.00 1.00 1.00 10 10 20 50.0 50.0 0.25 0.10 0.35 15 10 25 60.0 40.0 0.38 0.10 0.48 20 10 30 66.7 33.3 0.50 0.10 0.60 30 10 40 75.0 25.0 0.75 0.10 0.85 40 0 40 100.0 0.0 1.00 0.00 1.00 - Analogously to example 1, the synergism of MIT and NaPy was shown with regard to the microorganismPseudomonas aeruginosa.
- Again, the experimental batches contained a Müller-Hinton broth as the nutrient medium. The cell density was 106 cells/ml. The incubation time was 96 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- The MIC values of the biocide composition tested can be seen from table XI which follows. The MIC value was 60 ppm when only MIT was employed and 200 ppm when only NaPy was employed.
TABLE XI Pseudomonas aeruginosa: MIC values of MIT + NaPy at an incubation time of 96 h/25° C. MIT concentration NaPy concentration (ppm) (ppm) 300 200 150 100 75 50 25 0 100 − − − − − − − − 80 − − − − − − − − 60 − − − − − − − − 40 − − − − − − + + 30 − − − − − − + + 20 − − − − − + + + 15 − − − − − + + + 10 − − − − + + + + 0 − − + + + + + + - Synergism was present when MIT and NaPy were employed simultaneously. The calculation of the synergistic index can be seen from table XII. Accordingly, the lowest synergistic index (0.63) forPseudomonas aeruginosa was found for a mixture of 16.7% by weight of MIT and 83.3% by weight of NaPy.
TABLE XII Pseudomonas aeruginosa: calculation of the synergism of MIT + NaPy at an incubation time of 96 h/25° C. MIC at Total MIT NaPy concentration Concentration Synergistic concentration concentration MIT + NaPy MIT NaPy index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) ppm) (ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 200 200 0.0 100.0 0.00 1.00 1.00 10 150 160 6.3 93.8 0.17 0.75 0.92 10 100 110 9.1 90.9 0.17 0.50 0.67 15 75 90 16.7 83.3 0.25 0.38 0.63 20 75 95 21.1 78.9 0.33 0.38 0.71 30 50 80 37.5 62.5 0.50 0.25 0.75 40 50 90 44.4 55.6 0.67 0.25 0.92 60 0 60 100.0 0.0 1.00 0.00 1.00 - Analogously to example 1, the synergism of MIT and BBIT was shown with regard to the microorganismPseudomonas aeruginosa.
- Again, the experimental batches contained a Müller-Hinton broth as the nutrient medium. The cell density was 106 cells/ml. The incubation time was 72 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- The MIC values of the biocide composition tested can be seen from table XIII which follows. The MIC value was 40 ppm when only MIT was employed and over 500 ppm when only BBIT was employed.
TABLE XIII Pseudomonas aeruginosa: MIC values of MIT + BBIT at an incubation time of 72 h/25° C. MIT concentration BBIT concentration (ppm) (ppm) 500 375 250 200 150 100 50 0 50 − − − − − − − − 40 − − − − − − − − 30 − − − − − − − + 20 − − − − − − − + 15 − − − − − − − + 10 − − − − − − + + 5 + + + + + + + + 0 + + + + + + + + - Synergism was present when MIT and BBIT were employed simultaneously. The calculation of the synergistic index can be seen from table XIV. In the case of BBIT, an MIC of 500 ppm was used here as the basis for this calculation. Accordingly, the lowest synergistic index (0.45) forPseudomonas aeruginosa was found for a mixture of 9.1% by weight of MIT and 90.9% by weight of BBIT.
TABLE XIV Pseudomonas aeruginosa: calculation of the synergism of MIT + BBIT at an incubation time of 72 h/25° C. MIC at Total MIT BBIT concentration Concentration Synergistic concentration concentration MIT + BBIT MIT BBIT index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) ppm) ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 500 500 0.0 100.0 0.00 1.00 1.00 10 100 110 9.1 90.9 0.25 0.20 0.45 15 50 65 23.1 76.9 0.38 0.10 0.48 20 50 70 28.6 71.4 0.50 0.10 0.60 30 50 80 37.5 62.5 0.75 0.10 0.85 40 0 40 100.5 0.0 1.00 0.00 1.00 - The synergism of MIT and HMBIT toward the microorganismPseudomonas aeruginosa was demonstrated in a manner similar to that described in example 1.
- Again, the experimental batches contained a Müller-Hinton broth as nutrient medium. The cell density was 106 microorganisms/ml. The incubation time was 48 hours at 30° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- Table XV hereinbelow shows the MIC values of the biocide composition tested. When MIT is used alone, the MIC value was 50 ppm and when HMBIT was used alone it was 150 ppm.
TABLE XV Pseudomonas aeruginosa: MIC values of MIT + HMBIT at an incubation time of 48 h/30° C. MIT concentration HMBIT concentration (ppm) (ppm) 180 100 75 50 25 10 5 0 50 − − − − − − − − 40 − − − − − − + + 30 − − − − − + + + 20 − − − − + + + + 15 − − − − + + + + 10 − − + + + + + + 5 − − + + + + + + 0 − + + + + + + + - Synergism was present when MIT and HMBIT were employed simultaneously. Calculation of the synergistic index can be seen from table XVI. According to this table, the lowest synergistic index (0.63) forPseudomonas aeruginosa was found for a mixture of 23.1% by weight of MIT and 76.9% by weight of HMBIT.
TABLE XVI Pseudomonas aeruginosa: calculation of the synergism of MIT + HMBIT at an incubation time of 48 h/25° C. MIC at Total MIT HMBIT concentration Concentration Synergistic concentration concentration MIT + HMBIT MIT HMBIT index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) ppm) ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 150 150 0.0 100.0 0.00 1.00 1.00 5 100 105 4.8 95.2 0.10 0.67 0.77 15 75 90 16.7 83.3 0.30 0.50 0.80 15 50 65 23.1 76.9 0.30 0.33 0.63 20 50 70 28.6 71.4 0.40 0.33 0.73 30 25 55 54.5 45.5 0.60 0.17 0.77 40 10 50 80.0 20.0 0.80 0.07 0.87 50 0 50 100.0 0.0 1.00 0.00 1.00 - The synergism of MIT and BAC toward the microorganismPseudomonas aeruginosa was demonstrated in a manner similar to that described in example 1.
- Again, the experimental batches contained a Müller-Hinton broth as nutrient medium. The cell density was 106 microorganisms/ml. The incubation time was 48 hours at 25° C. Each sample was incubated in a shaker-incubator at 120 rpm.
- Table XVII hereinbelow shows the MIC values of the biocide composition tested. When MIT is used alone, the MIC value was 40 ppm and when BAC was used alone it was 80 ppm.
TABLE XVII Pseudomonas aeruginosa: MIC values of MIT + BAC at an incubation time of 48 h/25° C. MIT concentration BAC concentration (ppm) (ppm) 100 80 60 50 40 30 20 10 0 60 − − − − − − − − − 50 − − − − − − − − − 40 − − − − − − − − − 30 − − − − − − − − + 20 − − − − − − − − + 15 − − − − − + + + + 10 − − − − − + + + + 5 − − − − − + + + + 0 − − + + + + + + + - Synergism was present when MIT and BAC were employed simultaneously. Calculation of the synergistic index can be seen from table XVIII. According to this table, the lowest synergistic index (0.63) forPseudomonas aeruginosa was found for a mixture of 11.1% by weight of MIT and 88.9% by weight of BAC and for a mixture of 66.7% by weight of MIT and 33.3% by weight of BAC.
TABLE XVIII Pseudomonas aeruginosa: calculation of the synergism of NIT + BAC at an incubation time of 48 h/25° C. MIC at Total MIT BAC concentration Concentration Synergistic concentration concentration MIT + BAC MIT BAC index Qa Qb Qa + Qb (% by (% by Qa/QA + (ppm) ppm) ppm) weight) weight) Qa/QA Qb/QB Qb/QB 0 80 80 0.0 100.0 0.00 1.00 1.00 5 60 65 7.7 92.3 0.13 0.75 0.88 5 50 55 9.1 90.9 0.13 0.63 0.75 5 40 45 11.1 88.9 0.13 0.50 0.63 10 40 50 20.0 80.0 0.25 0.50 0.75 15 40 55 27.3 72.7 0.38 0.50 0.88 20 30 50 40.0 60.0 0.50 0.38 0.88 20 20 40 50.0 50.0 0.50 0.25 0.75 20 10 30 66.7 33.3 0.50 0.13 0.63 30 10 40 75.0 25.0 0.75 0.13 0.88 40 0 40 100.0 0.0 1.00 0.00 1.00
Claims (20)
1. A biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms, characterized in that the composition comprises formaldehyde or a formaldehyde-releasing substance as further biocidal active ingredient.
2. A biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms, characterized in that the composition comprises 2-bromo-2-nitro-1,3-propanediol as further biocidal active ingredient.
3. A biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms, characterized in that the composition comprises polyhexamethylenebiguanide as further biocidal active ingredient.
4. A biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms, characterized in that the composition comprises o-phenylphenol as further biocidal active ingredient.
5. A biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms, characterized in that the composition comprises a pyrithione as further biocidal active ingredient.
6. A biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms, characterized in that the composition comprises N-butyl-1,2-benzoisothiazolin-3-one as further biocidal active ingredient.
7. A biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms, characterized in that the composition comprises N-hydroxymethyl-1,2-benzoisothiazolin-3-one as further active ingredient.
8. A biocide composition, comprising 2-methylisothiazolin-3-one as biocidal active ingredient and at least one further biocidal active ingredient, as additive to materials capable of being attacked by harmful microorganisms, characterized in that the composition comprises benzylalkonium chloride as further active ingredient.
9. A biocide composition as claimed in claim 8 , characterized in that it comprises dimethylbenzylalkonium chloride as benzylalkonium chloride.
10. A biocide composition as claimed in any of claims 1 to 9 , characterized in that the 2-methylisothiazolin-3-one and the further biocidal active ingredient are present in a weight ratio of 1:100 to 100:1.
11. A biocide composition as claimed in claim 10 , characterized in that the 2-methylisothiazolin-3-one and the further biocidal active ingredient are present in a weight ratio of 20:80 to 80:20.
12. A biocide composition as claimed in any of claims 1 or 11, characterized in that the 2-methylisothiazolin-3-one is present in a concentration of from 1 to 50% by weight based on the entire biocide composition.
13. A biocide composition as claimed in any of claims 1 to 12 , characterized in that the further biocidal active ingredient is present in a concentration of from 1 to 50% by weight based on the entire biocide composition.
14. A biocide composition as claimed in any of claims 1 to 7 , characterized in that the 3-methylisothiazolin-3-one and the further biocidal active ingredient are present in a total concentration of from 1 to 100% by weight, based on the entire biocide composition.
15. A biocide composition as claimed in claim 14 , characterized in that the 3-methylisothiazolin-3-one and the further biocidal active ingredient are present in a total concentration of from 1 to 30% by weight, based on the entire biocide composition.
16. A biocide composition as claimed in any of claims 1 to 15 , characterized in that a polar and/or an unpolar liquid medium is/are present.
17. A biocide composition as claimed in claim 16 , characterized in that the polar liquid medium present is water, an alcohol, a glycol, a glycol ether, a glycol ester, a polyethylene glycol, a polypropylene glycol, N,N-dimethylformamide, 2,2,4-trimethylpentanediol monoisobutyrate or a mixture of at least two of these substances.
18. A biocide composition as claimed in claim 17 , characterized in that the polar liquid medium present is water.
19. The use of a biocide composition as claimed in any of claims 1 to 18 for controlling harmful microorganisms
20. A substance mixture or material, preserved against harmful microorganisms, characterized by a content of a biocide composition as claimed in any of claims 1 to 18 .
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US12/319,828 US8323674B2 (en) | 2000-08-31 | 2009-01-12 | Synergistic biocide composition comprising 2-methylisothiazoline-3-one |
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DE10042894.0 | 2000-08-31 | ||
DE10042894A DE10042894A1 (en) | 2000-08-31 | 2000-08-31 | Synergistic biocide composition with 2-methylisothiazolin-3-one |
PCT/EP2001/005939 WO2002017716A1 (en) | 2000-08-31 | 2001-05-23 | Synergetic biocidal composition comprising 2-methylisothiazoline-3-on |
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US12/319,828 Division US8323674B2 (en) | 2000-08-31 | 2009-01-12 | Synergistic biocide composition comprising 2-methylisothiazoline-3-one |
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US12/319,828 Expired - Lifetime US8323674B2 (en) | 2000-08-31 | 2009-01-12 | Synergistic biocide composition comprising 2-methylisothiazoline-3-one |
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US (2) | US20040014799A1 (en) |
EP (2) | EP1676479A1 (en) |
JP (1) | JP2004507475A (en) |
KR (1) | KR100793444B1 (en) |
CN (1) | CN1234273C (en) |
AT (1) | ATE341939T1 (en) |
AU (2) | AU7241901A (en) |
BR (1) | BR0113575A (en) |
CA (1) | CA2420135A1 (en) |
CZ (1) | CZ2003653A3 (en) |
DE (2) | DE10042894A1 (en) |
DK (1) | DK1315419T3 (en) |
ES (1) | ES2276804T3 (en) |
HU (1) | HUP0301731A3 (en) |
MX (1) | MXPA03001626A (en) |
NO (1) | NO20030906L (en) |
PL (1) | PL361624A1 (en) |
PT (1) | PT1315419E (en) |
RU (1) | RU2269264C2 (en) |
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UA74843C2 (en) | 2006-02-15 |
DE50111219D1 (en) | 2006-11-23 |
US8323674B2 (en) | 2012-12-04 |
DE10042894A1 (en) | 2002-03-14 |
RU2269264C2 (en) | 2006-02-10 |
PT1315419E (en) | 2007-01-31 |
AU7241901A (en) | 2002-03-13 |
WO2002017716A1 (en) | 2002-03-07 |
BR0113575A (en) | 2003-07-22 |
PL361624A1 (en) | 2004-10-04 |
KR20030029853A (en) | 2003-04-16 |
NO20030906D0 (en) | 2003-02-26 |
US20090156570A1 (en) | 2009-06-18 |
CA2420135A1 (en) | 2003-02-20 |
ES2276804T3 (en) | 2007-07-01 |
DK1315419T3 (en) | 2007-02-19 |
MXPA03001626A (en) | 2004-09-10 |
EP1315419B1 (en) | 2006-10-11 |
HUP0301731A2 (en) | 2003-08-28 |
EP1676479A1 (en) | 2006-07-05 |
JP2004507475A (en) | 2004-03-11 |
HUP0301731A3 (en) | 2005-05-30 |
CZ2003653A3 (en) | 2003-08-13 |
AU2001272419B2 (en) | 2006-03-02 |
CN1234273C (en) | 2006-01-04 |
NO20030906L (en) | 2003-04-24 |
ATE341939T1 (en) | 2006-11-15 |
KR100793444B1 (en) | 2008-01-11 |
CN1449245A (en) | 2003-10-15 |
EP1315419A1 (en) | 2003-06-04 |
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