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Stauffer Chemical Co
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Stauffer Chemical Co
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Publication date
Application filed by Stauffer Chemical CofiledCriticalStauffer Chemical Co
Publication of ES412758A1publicationCriticalpatent/ES412758A1/en
"ENCAPSULATION PROCESS", characterized by encapsulating water-immiscible material within a polyurea shell comprising a surfactant, a protective colloid and an organic polyisocyanate; dispersing said immiscible phase in water in said aqueous phase to establish droplets of the water-immiscible phase in said aqueous phase; adjusting the pH of said aqueous phase to a value between 0 and 14; heating and maintaining the immiscible base in water and the dispersed aqueous phase on a temperature scale ranging from about 20º C to about 90º C, whereby said water-immiscible material is encapsulated within a polyurea capsular wrapper. (Machine-translation by Google Translate, not legally binding)
ES412758A1973-01-121973-03-16Encapsulated process. (Machine-translation by Google Translate, not legally binding)
ExpiredES412758A1
(en)