Method for producing amine-formaldehyde microcapsules and photosensitive microcapsules produced thereby
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United States of America Patent
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Feb 1, 1994
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app pub date -
Jan 25, 1991
filing date -
Mar 15, 1989
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Abstract
A process for forming microcapsules having discrete capsule walls comprising the steps of: forming an emulsion of an oily core material phase in a continuous aqueous phase, said oily core material phase including isocyanatoacrylate or cyanoacrylate prewall reactants which react with said aqueous phase to form a pre-wall material around said oily core material phase; and enwrapping particles of said oily core material phase in an amine-formaldehyde condensation product produced by in situ condensation of an amine and formaldehyde, and the microcapsules produced thereby are disclosed.
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