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Microencapsulation by interfacial polycondensationSubject matter of U.S. Patent Application, Serial No. 813425 (1959), abandoned. (1963)

Mackinney, Herbert W.

Stamford, Conn. [u.a.] : Wiley-Blackwell

Polymer Engineering and Science 3 (1963), S. 71-71

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ISSN: 0032-3888

Keywords: Chemistry ; Chemical Engineering

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: A water immiscible liquid is encapsulated in a thin skin of an insoluble copolymer by dissolving a difunctional acid chloride in said liquid and spraying the solution in fine droplets into a dilute aqueous solution of excess glycol or diamine. The polymer, which is not hygroscopic, forms as an insoluble film on the periphery of each drop. The microcapsules may be separated from the aqueous phase and dried without coalescing. Dyes, pigments, stabilizers, and other materials may be incorporated within the capsules.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/pen.760030115

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