Substituted Propylene Urea in Conventional, Wet, and Moist Curing

Abstract

The properties and scope of application of a new six-membered N-methylol ring compound, 4MO-5DM-PU (4-methoxy-5,5-dimethyl-NN'-dimethylolpropylene urea) are described. Special properties, such as chlorine resistance, stability to hydrolysis, light fastness, and reactivity, are discussed in the light of theoretical considerations and of the results obtained on practical application. It has been found that 4MO-5DM-PU produces chlorine-resistant, nonhydrolyzing, and lightfast finishes. The reactivity of the product requires vigorous catalysts, but this does not adversely affect its use in numerous finishing processes. The procedures used in applying 4MO-5DM-PU by the conventional and wet and moist curing processes, as well as in permanent-press hnishing, are described. At the same time, the effects of additives, such as polyacrylates, polyolefins, and polyamides, in the various processes are dealt with. The versatility of 4MO-5DM-PU has produced a varicty of interesting results.