摘要:
Biocidally active cationic analogs of N-halamine having two biocidally active groups covalently bonded together in a single molecule and having general Formula (I). Compounds of Formula (I), and precursurs thereof, can be in solution form immobilized onto a substrate via physical coating or covalent chemical bonding to functionalize surfaces or added into materials as additives so as to render them biocidal. The biocidal solutions and substrates comprising the compounds or precursors of the present invention can then be used to inactivate pathogenic microorganisms. N-halamine-L-QUAT (I) wherein: the N-halamine may be a cyclic or acyclic N-halamine; L is C 1 -C 6 alkyl, cyclic aromatic or nonaromatic ring, ether, ketone or any other organic linking structures, and QUAT has general formula (II):
摘要:
Among the enhanced properties of the 1,3-dibromo-5,5-dimethylhydantoins described are their larger average particle sizes, their compactibility even though devoid of a binder, their excellent free-flowing and low-dust properties, and their more appealing aesthetic qualities, as compared to previously known 1,3-dibromo-5,5-dimethylhydantoins. These novel 1,3-dibromo-5,5-dimethyl-hydantoins can be produced, for example, by concurrently feeding (i) an aqueous solution or slurry formed from an inorganic base and 5,5-dimethylhydantoin, and (ii) a brominating agent, in proportions such that each nitrogen atom is substituted by a bromine atom, thereby forming product which precipitates in an aqueous reaction mixture. The pH of the reaction mixture is maintained in the range of 5.5 to 8.5.
摘要:
A production method of the present invention is a method for producing a halohydantoin compound in which method a composition including a halohydantoin compound and an impurity is treated, the method including the step of adding the composition to a mixed solvent of water and an organic solvent and washing the composition.
摘要:
The present invention provides a means which can inhibit release of I 2 in storage of 1, 3-diiodohydantoin compound, and thereby solve decrease in purity of the compound and various problems caused by I 2 . The present invention provides a storage method for 1,3-diiodohydantoin compounds comprising a step to store a 1,3-diiodohydantoin compound under a temperature condition of 15 ºC or lower.
摘要:
The present invention provides a means which can inhibit release of I 2 in production or storage of 1, 3-diiodohydantoin compound, and thereby solve decrease in purity of the compound and various problems caused by I 2 . The present invention provides a production method for 1,3-diiodohydantoin compound comprising a step to prepare a wet body containing a 1,3-diiodohydantoin compound, and (1) a step to dry the wet body by contacting the wet body with heated gas or (2) a step to lyophilize the wet body, a storage method for 1, 3-diiodohydantoin compound comprising a step to store a 1,3-diiodohydantoin compound under a temperature condition of 15 °C or lower, and a 1,3-diiodohydantoin compound wherein content of released I 2 is 1% by mass or less.