14-02-2019 дата публикации
Номер: US20190045787A1
Принадлежит:
An aqueous dispersion containing BIT and IPBC prepared using nonionic and anionic surfactants exhibits both chemical and physical stability and is suitable for use as a single product which is capable of imparting to a coating composition a high level of resistance against attack by a broad spectrum of organisms, including bacteria, fungi and algae, in both the wet-state and dry film-state. 1. A composition useful for providing resistance to microbiological attack in both a wet state and a dry film state in a single dose , wherein the composition is comprised of:a) water;b) 1% to 12% by weight 1,2-benzisothiazolin-3-one (BIT);c) 2% to 50% by weight 3-iodo-2-propynl butyl carbamate (IPBC), wherein BIT and IPBC are present in amounts effective to provide a weight ratio of BIT:IPBC of from 0.02 to 2;d) at least one nonionic surfactant;e) at least one anionic surfactant; and 'wherein d) and e) are present in an amount effective to provide the composition in the form of a stable aqueous dispersion.', 'f) at least one thickener/suspending agent, in an amount effective to provide the composition with a viscosity of at least 300 centipoise at 25° C.;'}2. The composition of claim 1 , comprising at least two different nonionic surfactants.3. The composition of claim 1 , comprising at least one alkoxylated aliphatic or aromatic mono-alcohol.4. The composition of claim 1 , comprising at least two different alkoxylated aliphatic mono-alcohols.5. The composition of claim 1 , comprising a first alkoxylated aliphatic mono-alcohol and a second alkoxylated aliphatic mono-alcohol each having an aliphatic mono-alcohol segment and an alkoxylated segment claim 1 , wherein the second alkoxylated aliphatic mono-alcohol differs from the first alkoxylated aliphatic mono-alcohol with respect to at least one of a) chain length of the aliphatic mono-alcohol segment claim 1 , b) composition of the alkoxylated segment claim 1 , or c) number of oxyalkylene units in the alkoxylated segment.6. The ...
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