| 主权项 |
1. An antimicrobial composition concentrate comprising:
at least one isothiazolin-3-one in an amount of between about 0.1 wt. % and about 40 wt. % based on the weight of the antimicrobial composition concentrate, wherein said isothiazolin-3-one is selected from the group consisting of 2-n-octyl-4-isothiazolin-3-one, N-n-butyl-1,2-benzisothiazolin-3-one and a combination thereof; at least one alkyl amine in an amount of between about 2 wt. % and about 80 wt. % based on the weight of the antimicrobial composition concentrate, wherein said alkyl amine comprises a tertiary amine having methyl or ethyl-substituents together with a long chain substituent having an average chain length of 12 carbons per molecule of the tertiary amine; at least one surfactant present in an amount of between about 1 wt. % and about 50 wt. % based on the weight of the antimicrobial composition concentrate; and at least one solvent present in an amount of between about 1 wt. % and about 30 wt. % based on the weight of the antimicrobial composition concentrate, wherein when the isothiazolin-3-one consists of 2-n-octyl-4-isothiazolin-3-one, the weight ratio of the 2-n-octyl-4-isothiazolin-3-one to the alkyl amine is between 1:5 and 1:20; when the isothiazolin-3-one consists of N-n-butyl-1.2-benzisothiazolin-3-one, the weight ratio of the N-n-butyl-1.2-benzisothiazolin-3-one to the alkyl amine is between 1:6.25 and 1:25; when the alkyl amine is used in combination with both 2-n-octyl-4-isothiazolin-3-one, and N-n-butyl-1,2-benzisothiazolin-3-one, the weight ratio of the sum of the 2-n-octyl-4-isothiazolin-3-one and the N-n-butyl-1.2-benzisothiazolin-3-one to the alkyl amine is between about 1:10 and about 1:20, and the weight ratio of the 2-n-octyl-4-isothiazolin-3-one to the N-n-butyl-1,2-benzisothiazolin-3-one is between 1:1 and 2:1. |
