Method for preparing halogenated hydantoins
AssigneeGlyco Inc.
InventorsTheodore A. Girard, Lloyd C. Franklin
Life of this patent
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Abstract
A halogenated hydantoin product and method of producing same for use as e.g. a bleaching agent or disinfectant comprising a halogenated hydantoin of the formula ##STR1## wherein R is methyl or ethyl and X.sub.1 and X.sub.2 which may be the same or different are chlorine or bromine, either as the sole constituent or in admixture with halogenated dimethylhydantoins. The products are substantially dust-free, free-flowing and upon compaction form a solid product of high physical integrity.
Claims7
A method for the production of a free-flowing, non-dusting halogenated hydantoin product which comprises halogenating under controlled pH conditions of from 6.0 to about 8.0 a hydantoin of the formula ##STR5## wherein R is methyl or ethyl;
- to form a precipitate and thereafter filtering washing and drying the product characterized as non-dusting and free-flowing and having the formula ##STR6## wherein R is methyl or ethyl and X.sub.1 and X.sub.2 which may be the same or different is chlorine or bromine.
Dependencies are inferred from the claim text.