Process for preparing methylolated hydantoins
AssigneesTakatori Corporation, Takatori Hitech Co., Ltd.
InventorsThomas E. Farina, Lloyd C. Franklin
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Abstract
A method for making methylolated hydantoins by reacting a hydantoin, a formaldehyde such as paraformaldehyde and an alkaline catalyst at conditions of temperature and pressure sufficient to induce reaction to obtain a product in essentially 100% active form. Dry methylolated hydantoin product made by this process may be stored or shipped more economically than an aqueous solution containing a methylolated hydantoin.
Claims20
A method for the production of a methylolated hydantoin which comprises reacting a hydantoin, a source of formaldehyde, and an alkaline catalyst in the effective absence of water at conditions of temperature and pressure sufficient to produce said methylolated hydantoin.
A method for the production of a crystallized methylolated hydantoin which comprises mixing a hydantoin, a source of formaldehyde and an alkaline catalyst in the effective absence of water, heating said mixture until reaction is complete and cooling said mixture until crystallization of methylolated hydantoin occurs.
Dependencies are inferred from the claim text.